Java SDK | 文档中心

1. 功能介绍

本文档详细说明BubiChain Java SDK常用接口文档, 使开发者更方便地操作和查询BubiChain区块链。

2. 准备工作

2.1. 环境要求

JDK要求8或更高版本。

3. 安装

需要以下两步来完成，下面以4.1.1版本为例说明。

首先在Maven的配置文件中添加 BubiChain 的以下远程仓库

<repository>
  <id>releases</id>
  <url>http://maven.bubidev.cn/content/repositories/releases/</url>
  <releases>
    <enabled>true</enabled>
  </releases>
  <snapshots>
    <enabled>true</enabled>
  </snapshots>
</repository>

在pom.xml的配置文件中添加相应版本的依赖包

<dependency>
  <groupId>cn.bubi.sdk</groupId>
  <artifactId>bubichain-sdk</artifactId>
  <version>4.1.1</version>
</dependency>

调用SDK的接口getInstance来生成SDK实例，如下：

String url = "http://seed1-node.bubi.cn";
SDK sdk = SDK.getInstance(url);

调用Keypair.generator接口生成账户，具体调用如下：

Keypair keypair = Keypair.generator();
System.out.println(keypair.getPrivateKey());
System.out.println(keypair.getPublicKey());
System.out.println(keypair.getAddress());

至此，链信息以及账户信息准备完成，接下来就可以进行更加深入的操作了。

4. 使用说明

如何使用sdk发送交易，分为以下几步。

4.1. 实例化SDK

String url = "http://seed1-node.bubi.cn";
SDK sdk = SDK.getInstance(url);

4.2. 获取账户nonce值

nonce用于防止重放攻击并确保交易顺序。每个账户都有一个与之相关的nonce值，表示该账户已发送的交易数量。每发送一笔交易，nonce值会递增1。这意味着每笔交易都有一个唯一的nonce值，从而避免同一交易被多次执行。还可以确保交易按照特定的顺序被处理。调用如下：

// 初始化请求参数
String senderAddress = "adxSa4oENoQCc66JRouZu1rKu4RWjgS69YD4S";
AccountGetNonceRequest getNonceRequest = new AccountGetNonceRequest();
getNonceRequest.setAddress(senderAddress);

// 调用getNonce接口
AccountGetNonceResponse getNonceResponse =  sdk.getAccountService().getNonce(getNonceRequest);

// 赋值nonce
if (getNonceResponse.getErrorCode() == 0) {
   AccountGetNonceResult result = getNonceResponse.getResult();
   System.out.println("nonce: " + result.getNonce());
}
else {
    System.out.println("error" + getNonceResponse.getErrorDesc());
}

4.3. 构建操作

操作是指在交易中做的动作，详细信息请参阅SDK接口/操作结构，例如，转移Gas操作，接口调用如下：

String senderAddress = "adxSa4oENoQCc66JRouZu1rKu4RWjgS69YD4S";
String destAddress = "adxSgTxU1awVzNUeR8xcnd3K75XKU8ziNHcWW";
Long eaAmount = ToBaseUnit.ToUGas("10.9");

GasSendOperation operation = new GasSendOperation();
operation.setSourceAddress(senderAddress);
operation.setDestAddress(destAddress);
operation.setAmount(eaAmount);

4.4. 序列化交易

该接口用于序列化交易，并生成交易Blob串，便于网络传输。其中nonce和operation是上面接口得到的，调用如下：

// 初始化变量
String senderAddress = "adxSa4oENoQCc66JRouZu1rKu4RWjgS69YD4S";
Long gasPrice = 1000L;
Long feeLimit = ToBaseUnit.ToUGas("0.01");

// 初始化请求参数
TransactionBuildBlobRequest buildBlobRequest = new TransactionBuildBlobRequest();
buildBlobRequest.setSourceAddress(senderAddress);
buildBlobRequest.setNonce(nonce + 1);
buildBlobRequest.setFeeLimit(feeLimit);
buildBlobRequest.setGasPrice(gasPrice);
buildBlobRequest.addOperation(operation);

// 调用buildBlob接口
TransactionBuildBlobResponse buildBlobResponse = sdk.getTransactionService().buildBlob(buildBlobRequest);
if (buildBlobResponse.getErrorCode() == 0) {
    TransactionBuildBlobResult result = buildBlobResponse.getResult();
    System.out.println("txHash: " + result.getHash() + ", blob: " + result.getTransactionBlob());
} else {
    System.out.println("error: " + buildBlobResponse.getErrorDesc());
}

4.5. 签名交易

该接口用于交易发起者使用其账户私钥对交易进行签名。其中transactionBlob是上面接口得到的，调用如下：

// 初始化请求参数
String senderPrivateKey = "privbwAQyE2vWwzt9NuC8vecqpZm7DS8kfiMPsKPcrTatUkmkxkVhfaf";
String []signerPrivateKeyArr = {senderPrivateKey};
TransactionSignRequest signRequest = new TransactionSignRequest();
signRequest.setBlob(transactionBlob);
for (int i = 0; i < signerPrivateKeyArr.length; i++) {
    signRequest.addPrivateKey(signerPrivateKeyArr[i]);
}

// 调用sign接口
TransactionSignResponse signResponse = sdk.getTransactionService().sign(signRequest);
if (signResponse.getErrorCode() == 0) {
    TransactionSignResult result = signResponse.getResult();
    System.out.println(JSON.toJSONString(result, true));
} else {
    System.out.println("error: " + signResponse.getErrorDesc());
}

4.6. 提交交易

该接口用于向BubiChain区块链发送交易请求，触发交易的执行。其中transactionBlob和signResult是上面接口得到的，调用如下：

// 初始化请求参数
TransactionSubmitRequest submitRequest = new TransactionSubmitRequest();
submitRequest.setTransactionBlob(transactionBlob);
submitRequest.setSignatures(signResult.getSignatures());

// 调用submit接口
TransactionSubmitResponse response = sdk.getTransactionService().submit(submitRequest);
if (0 == response.getErrorCode()) {
    System.out.println("交易广播成功，hash=" + response.getResult().getHash());
} else {
    System.out.println("error: " + response.getErrorDesc());
}

4.7. 查询交易结果

根据提交交易获取到的返回值hash字段进行查询。

 public void getTransactionInfo() {
        TransactionGetInfoRequest request = new TransactionGetInfoRequest();
        request.setHash("0d67997af3777b977deb648082c8288b4ba46b09d910d016f0942bcd853ad518");
        TransactionGetInfoResponse response = sdk.getTransactionService().getInfo(request);
        if (response.getErrorCode() == 0) {
            System.out.println(JSON.toJSONString(response.getResult(), true));
        } else {
            System.out.println("error: " + response.getErrorDesc());
        }
    }

5. SDK接口

5.1. 交易服务

交易服务提供交易相关的接口，目前有5个接口：buildBlob、evaluateFee、sign、submit、getInfo。

buildBlob

接口说明

该接口用于序列化交易，生成交易Blob串，便于网络传输

调用方法

TransactionBuildBlobResponse buildBlob(TransactionBuildBlobRequest);

请求参数

参数	类型	描述
sourceAddress	String	必填，发起该操作的源账户地址
nonce	Long	必填，待发起的交易序列号，函数里+1，大小限制[1, Long.MAX_VALUE]
gasPrice	Long	必填，交易费用单价，按字节收费，单位UGas，1 Gas = 10^8 UGas，大小限制[1000, Long.MAX_VALUE]
feeLimit	Long	必填，交易要求的最低的手续费，单位UGas，1 Gas = 10^8 UGas，大小限制[1, Long.MAX_VALUE]
operation	BaseOperation[]	必填，待提交的操作列表，不能为空
ceilLedgerSeq	long	选填，距离当前区块高度指定差值的区块内执行的限制，当区块超出当时区块高度与所设差值的和后，交易执行失败。必须大于等于0，是0时不限制
metadata	String	选填，备注

响应数据

字段名称	类型	描述
transactionBlob	String	Transaction序列化后的16进制字符串
hash	String	交易hash

示例

// 初始化变量
String senderAddresss = "adxSYQ8iMyZ7Dkj1oX1kjGMV55WXvoPKcLEK3";
String destAddress = "adxSgTxU1awVzNUeR8xcnd3K75XKU8ziNHcWW";
Long eaAmount = ToBaseUnit.ToUGas("10.9");
Long gasPrice = 1000L;
Long feeLimit = ToBaseUnit.ToUGas("0.01");
Long nonce = 1L;

// 构建sendGas操作
GasSendOperation operation = new GasSendOperation();
operation.setSourceAddress(senderAddresss);
operation.setDestAddress(destAddress);
operation.setAmount(eaAmount);

// 初始化请求参数
TransactionBuildBlobRequest request = new TransactionBuildBlobRequest();
request.setSourceAddress(senderAddresss);
request.setNonce(nonce);
request.setFeeLimit(feeLimit);
request.setGasPrice(gasPrice);
request.addOperation(operation);

// 调用buildBlob接口
String transactionBlob = null;
TransactionBuildBlobResponse response = sdk.getTransactionService().buildBlob(request);
if (response.getErrorCode() == 0) {
   TransactionBuildBlobResult result = response.getResult();
   System.out.println(JSON.toJSONString(result, true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

evaluateFee

接口说明

该接口实现交易的费用评估。

调用方法

TransactionEvaluateFeeResponse evaluateFee (TransactionEvaluateFeeRequest);

请求参数

参数	类型	描述
sourceAddress	String	必填，发起该操作的源账户地址
nonce	Long	必填，待发起的交易序列号，大小限制[1, Long.MAX_VALUE]
operation	BaseOperation[]	必填，待提交的操作列表，不能为空
signtureNumber	Integer	选填，待签名者的数量，默认是1，大小限制[1, Integer.MAX_VALUE]
ceilLedgerSeq	Long	选填，距离当前区块高度指定差值的区块内执行的限制，当区块超出当时区块高度与所设差值的和后，交易执行失败。必须大于等于0，是0时不限制
metadata	String	选填，备注

响应数据

参数	类型	描述
txs	TestTx[]	评估交易集

示例

// 初始化变量
String senderAddresss = "adxSa4oENoQCc66JRouZu1rKu4RWjgS69YD4S";
String destAddress = "adxSYQ8iMyZ7Dkj1oX1kjGMV55WXvoPKcLEK3";
Long eaAmount = ToBaseUnit.ToUGas("10.9");
Long gasPrice = 1000L;
Long feeLimit = ToBaseUnit.ToUGas("0.01");
Long nonce = 51L;

// 构建sendGas操作
GasSendOperation gasSendOperation = new GasSendOperation();
gasSendOperation.setSourceAddress(senderAddresss);
gasSendOperation.setDestAddress(destAddress);
gasSendOperation.setAmount(eaAmount);

// 初始化评估交易请求参数
TransactionEvaluateFeeRequest request = new TransactionEvaluateFeeRequest();
request.addOperation(gasSendOperation);
request.setSourceAddress(senderAddresss);
request.setNonce(nonce);
request.setSignatureNumber(1);
request.setMetadata(HexFormat.byteToHex("evaluate fees".getBytes()));

// 调用evaluateFee接口
TransactionEvaluateFeeResponse response = sdk.getTransactionService().evaluateFee(request);
if (response.getErrorCode() == 0) {
   TransactionEvaluateFeeResult result = response.getResult();
   System.out.println(JSON.toJSONString(result, true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

sign

接口说明

该接口用于实现交易的签名

调用方法

TransactionSignResponse sign(TransactionSignRequest);

请求参数

参数	类型	描述
blob	String	必填，待签名的交易Blob
privateKeys	String[]	必填，私钥列表

响应数据

参数	类型	描述
signatures	Signature[]	签名后的数据列表

示例

// 初始化请求参数
String issuePrivateKey = "privbwAQyE2vWwzt9NuC8vecqpZm7DS8kfiMPsKPcrTatUkmkxkVhfaf";
String []signerPrivateKeyArr = {issuePrivateKey};
String transactionBlob = "0A246275516E6E5545425245773268423670574847507A77616E5837643238786B364B566370102118C0843D20E8073A56080712246275516E6E5545425245773268423670574847507A77616E5837643238786B364B566370522C0A24627551426A4A443142534A376E7A41627A6454656E416870466A6D7852564545746D78481080A9E08704";
TransactionSignRequest request = new TransactionSignRequest();
request.setBlob(transactionBlob);
for (int i = 0; i < signerPrivateKeyArr.length; i++) {
   request.addPrivateKey(signerPrivateKeyArr[i]);
}
TransactionSignResponse response = sdk.getTransactionService().sign(request);
if(0 == response.getErrorCode()){
   System.out.println(JSON.toJSONString(response.getResult(), true));
}else{
   System.out.println("error: " + response.getErrorDesc());
}

submit

接口说明

该接口用于实现交易的提交。

调用方法

TransactionSubmitResponse submit(TransactionSubmitRequest);

请求参数

参数	类型	描述
blob	String	必填，交易blob
signature	Signature[]	必填，签名列表

响应数据

参数	类型	描述
hash	String	交易hash

示例

// 初始化请求参数
String transactionBlob = "0A246275516E6E5545425245773268423670574847507A77616E5837643238786B364B566370102118C0843D20E8073A56080712246275516E6E5545425245773268423670574847507A77616E5837643238786B364B566370522C0A24627551426A4A443142534A376E7A41627A6454656E416870466A6D7852564545746D78481080A9E08704";
Signature signature = new Signature();
signature.setSignData("D2B5E3045F2C1B7D363D4F58C1858C30ABBBB0F41E4B2E18AF680553CA9C3689078E215C097086E47A4393BCA715C7A5D2C180D8750F35C6798944F79CC5000A");
signature.setPublicKey("b0011765082a9352e04678ef38d38046dc01306edef676547456c0c23e270aaed7ffe9e31477");
TransactionSubmitRequest request = new TransactionSubmitRequest();
request.setTransactionBlob(transactionBlob);
request.addSignature(signature);

// 调用submit接口
TransactionSubmitResponse response = sdk.getTransactionService().submit(request);
if (0 == response.getErrorCode()) { // 交易提交成功
   System.out.println(JSON.toJSONString(response.getResult(), true));
} else{
   System.out.println("error: " + response.getErrorDesc());
}

getInfo

接口说明

该接口用于实现根据交易hash查询交易。

调用方法

TransactionGetInfoResponse getInfo (TransactionGetInfoRequest);

请求参数

参数	类型	描述
hash	String	交易hash

响应数据

参数	类型	描述
totalCount	Long	返回的总交易数
transactions	TransactionHistory[]	交易内容

示例

// 初始化请求参数
String txHash = "1653f54fbba1134f7e35acee49592a7c29384da10f2f629c9a214f6e54747705";
TransactionGetInfoRequest request = new TransactionGetInfoRequest();
request.setHash(txHash);

// 调用getInfo接口
TransactionGetInfoResponse response = sdk.getTransactionService().getInfo(request);
if (response.getErrorCode() == 0) {
   System.out.println(JSON.toJSONString(response.getResult(), true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

5.2. 操作结构

操作是指在交易在要做的事情，在构建操作之前，需要构建操作。目前操作有10种，分别是 AccountActivateOperation、AccountSetMetadataOperation、 AccountSetPrivilegeOperation、 AssetIssueOperation、 AssetSendOperation、 GasSendOperation、 ContractCreateOperation、 ContractInvokeByAssetOperation、 ContractInvokeByGasOperation、 LogCreateOperation。

BaseOperation

BaseOperation是buildBlob接口中所有操作的基类。

成员变量	类型	描述
sourceAddress	String	选填，操作源账户地址
metadata	String	选填，备注

AccountActivateOperation

功能

该操作用于激活账户。AccountActivateOperation继承于BaseOperation。

费用

FeeLimit目前固定是0.01 Gas。

成员

成员变量	类型	描述
sourceAddress	String	选填，操作源账户地址
destAddress	String	必填，目标账户地址
initBalance	Long	必填，初始化资产，单位UGas，1 Gas = 10^8 UGas, 大小(0, Long.MAX_VALUE]
metadata	String	选填，备注

AccountSetMetadataOperation

功能

该操作用于设置账户metadata。AccountSetMetadataOperation继承于BaseOperation。

费用

FeeLimit目前固定是0.01 Gas。

成员

成员变量	类型	描述
sourceAddress	String	选填，操作源账户地址
key	String	必填，metadata的关键词，长度限制[1, 1024]
value	String	必填，metadata的内容，长度限制[0, 256000]
version	Long	选填，metadata的版本
deleteFlag	Boolean	选填，是否删除metadata
metadata	String	选填，备注

AccountSetPrivilegeOperation

功能

该操作用于设置账户权限。AccountSetPrivilegeOperation继承于BaseOperation。

费用

feeLimit目前固定是0.01 Gas。

成员

成员变量	类型	描述
sourceAddress	String	选填，操作源账户地址
masterWeight	String	选填，账户自身权重，大小限制[0, (Integer.MAX_VALUE * 2L + 1)]
signers	Signer[]	选填，签名者权重列表
txThreshold	String	选填，交易门限，大小限制[0, Long.MAX_VALUE]
typeThreshold	TypeThreshold[]	选填，指定类型交易门限
metadata	String	选填，备注

AssetIssueOperation

功能

该操作用于发行资产。AssetIssueOperation继承于BaseOperation。

费用

FeeLimit目前固定是50.01 Gas。

成员

成员变量	类型	描述
sourceAddress	String	选填，操作源账户地址
code	String	必填，资产编码，长度限制[1, 64]
assetAmount	Long	必填，资产发行数量，大小限制[0, Long.MAX_VALUE]
metadata	String	选填，备注

AssetSendOperation

注意：若目标账户未激活，必须先调用激活账户操作。

功能

该操作用于转移资产。AssetSendOperation继承于BaseOperation。

费用

FeeLimit目前固定是0.01 Gas。

成员

成员变量	类型	描述
sourceAddress	String	选填，操作源账户地址
destAddress	String	必填，目标账户地址
code	String	必填，资产编码，长度限制[1, 64]
issuer	String	必填，资产发行账户地址
assetAmount	Long	必填，资产数量，大小限制[0, Long.MAX_VALUE]
metadata	String	选填，备注

GasSendOperation

注意：若目标账户未激活，该操作也可使目标账户激活。

功能

该操作用于转移Gas。GasSendOperation继承于BaseOperation。

费用

FeeLimit目前固定是0.01 Gas。

成员

成员变量	类型	描述
sourceAddress	String	选填，操作源账户地址
destAddress	String	必填，目标账户地址
gasAmount	Long	必填，资产发行数量，大小限制[0, Long.MAX_VALUE]
metadata	String	选填，备注

ContractCreateOperation

功能

该操作用于创建合约。ContractCreateOperation继承于BaseOperation。

费用

FeeLimit目前固定是10.01 Gas。

成员

成员变量	类型	描述
sourceAddress	String	选填，操作源账户地址
initBalance	Long	必填，给合约账户的初始化资产，单位UGas，1 Gas = 10^8 UGas, 大小限制[1, Long.MAX_VALUE]
type	Integer	选填，合约的语种，默认是0
payload	String	必填，对应语种的合约代码
initInput	String	选填，合约代码中init方法的入参
metadata	String	选填，备注

ContractInvokeByAssetOperation

注意：若合约账户不存在，必须先创建合约账户。

功能

该操作用于转移资产并触发合约。ContractInvokeByAssetOperation继承于BaseOperation。

费用

FeeLimit要根据合约中执行交易来做添加手续费，首先发起交易手续费目前是0.01Gas，然后合约中的交易也需要交易发起者添加相应交易的手续费。

成员

成员变量	类型	描述
sourceAddress	String	选填，操作源账户地址
contractAddress	String	必填，合约账户地址
code	String	选填，资产编码，长度限制[0, 64];当为空时，仅触发合约;
issuer	String	选填，资产发行账户地址，当null时，仅触发合约
assetAmount	Long	选填，资产数量，大小限制[0, Long.MAX_VALUE]，当是0时，仅触发合约
input	String	选填，待触发的合约的main()入参
metadata	String	选填，备注

ContractInvokeByGasOperation

注意：若目标账户非合约账户且未激活，该操作也可使目标账户激活。

功能

该操作用于转移Gas并触发合约。ContractInvokeByGasOperation继承于BaseOperation。

费用

FeeLimit要根据合约中执行交易来做添加手续费，首先发起交易手续费目前是0.01Gas，然后合约中的交易也需要交易发起者添加相应交易的手续费。

成员

成员变量	类型	描述
sourceAddress	String	选填，操作源账户地址
contractAddress	String	必填，合约账户地址
gasAmount	Long	选填，资产发行数量，大小限制[0, Long.MAX_VALUE]，当0时仅触发合约
input	String	选填，待触发的合约的main()入参
metadata	String	选填，备注

LogCreateOperation

功能

该操作用于记录日志。LogCreateOperation继承于BaseOperation。

费用

FeeLimit目前固定是0.01 Gas。

成员

成员变量	类型	描述
sourceAddress	String	选填，操作源账户地址
topic	String	必填，日志主题，长度限制[1, 128]
datas	List	必填，日志内容，每个字符串长度限制[1, 1024]
metadata	String	选填，备注

5.3. 账户服务

账户服务提供账户相关的接口，包括6个接口： checkValid、getInfo、getNonce、getBalance、getAssets、getMetadata。

checkValid

接口说明

该接口用于检查区块链账户地址的有效性

调用方法

AccounCheckValidResponse checkValid(AccountCheckValidRequest)

请求参数

参数	类型	描述
address	String	必填，待检查的区块链账户地址

响应数据

参数	类型	描述
isValid	Boolean	是否有效

示例

// 初始化请求参数
String address = "adxSdV6qWfyhJAmzrPbv3btsPPT6aFrqBku3C";
AccountCheckValidRequest request = new AccountCheckValidRequest();
request.setAddress(address);

// 调用checkValid
AccountCheckValidResponse response = sdk.getAccountService().checkValid(request);
if(0 == response.getErrorCode()) {
   System.out.println(response.getResult().isValid());
} else {
   System.out.println("error: " + response.getErrorDesc());
}

getInfo-Account

接口说明

该接口用于获取指定的账户信息

调用方法

AccountGetInfoResponse GetInfo(AccountGetInfoRequest);

请求参数

参数	类型	描述
address	String	必填，待检查的区块链账户地址

响应数据

参数	类型	描述
address	String	账户地址
balance	Long	账户余额，单位UGas，1 Gas = 10^8 UGas, 必须大于0
nonce	Long	账户交易序列号，必须大于0
priv	Priv	账户权限

示例

// 初始化请求参数
String accountAddress = "adxSdV6qWfyhJAmzrPbv3btsPPT6aFrqBku3C";
AccountGetInfoRequest request = new AccountGetInfoRequest();
request.setAddress(accountAddress);

// 调用getInfo接口
AccountGetInfoResponse response =  sdk.getAccountService().getInfo(request);
if (response.getErrorCode() == 0) {
   AccountGetInfoResult result = response.getResult();
   System.out.println("账户信息: \n" + JSON.toJSONString(result, true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

getNonce

接口说明

该接口用于获取指定账户的nonce值

调用方法

AccountGetNonceResponse getNonce(AccountGetNonceRequest);

请求参数

参数	类型	描述
address	String	必填，待查询的区块链账户地址

响应数据

参数	类型	描述
nonce	Long	账户交易序列号

示例

// 初始化请求参数
String accountAddress = "adxSk9MTT6aGoMxjAxuEGt1agRvWWnng25RF2";
AccountGetNonceRequest request = new AccountGetNonceRequest();
request.setAddress(accountAddress);

// 调用getNonce接口
AccountGetNonceResponse response = sdk.getAccountService().getNonce(request);
if(0 == response.getErrorCode()){
   System.out.println("账户nonce:" + response.getResult().getNonce());
} else {
   System.out.println("error: " + response.getErrorDesc());
}

getBalance

接口说明

该接口用于获取指定账户的Gas的余额

调用方法

AccountGetBalanceResponse getBalance(AccountGetBalanceRequest);

请求参数

参数	类型	描述
address	String	必填，待查询的区块链账户地址

响应数据

参数	类型	描述
balance	Long	Gas的余额，单位UGas，1 Gas = 10^8 UGas

示例

// 初始化请求参数
String accountAddress = "adxSk9MTT6aGoMxjAxuEGt1agRvWWnng25RF2";
AccountGetBalanceRequest request = new AccountGetBalanceRequest();
request.setAddress(accountAddress);

// 调用getBalance接口
AccountGetBalanceResponse response = sdk.getAccountService().getBalance(request);
if(0 == response.getErrorCode()){
   AccountGetBalanceResult result = response.getResult();
   System.out.println("Gas余额：" + ToBaseUnit.ToUGas(result.getBalance().toString()) + " Gas");
} else {
   System.out.println("error: " + response.getErrorDesc());
}

getAssets

接口说明

该接口用于获取指定账户的所有资产信息

调用方法

AccountGetAssets getAssets(AccountGetAssetsRequest);

请求参数

参数	类型	描述
address	String	必填，待查询的账户地址

响应数据

参数	类型	描述
asset	AssetInfo[]	账户资产

示例

// 初始化请求参数
AccountGetAssetsRequest request = new AccountGetAssetsRequest();
request.setAddress("adxSmZHjDopQam2y5ntvHhGk4XEkiXc9MnFWZ");

// 调用getAssets接口
AccountGetAssetsResponse response = sdk.getAccountService().getAssets(request);
if (response.getErrorCode() == 0) {
   AccountGetAssetsResult result = response.getResult();
   System.out.println(JSON.toJSONString(result, true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

getMetadata

接口说明

该接口用于获取指定账户的metadata信息

调用方法

AccountGetMetadataResponse getMetadata(AccountGetMetadataRequest);

请求参数

参数	类型	描述
address	String	必填，待查询的账户地址
key	String	选填，metadata关键字，长度限制[1, 1024]

响应数据

参数	类型	描述
metadata	MetadataInfo	账户

示例

// 初始化请求参数
String accountAddress = "adxSmZHjDopQam2y5ntvHhGk4XEkiXc9MnFWZ";
AccountGetMetadataRequest request = new AccountGetMetadataRequest();
request.setAddress(accountAddress);
request.setKey("20180704");

// 调用getMetadata接口
AccountGetMetadataResponse response =  sdk.getAccountService().getMetadata(request);
if (response.getErrorCode() == 0) {
   AccountGetMetadataResult result = response.getResult();
   System.out.println(JSON.toJSONString(result, true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

5.4. 资产服务

账户服务提供资产相关的接口，目前有1个接口：getInfo

getInfo-Asset

接口说明

该接口用于获取指定账户的指定资产信息

调用方法

AssetGetInfoResponse getInfo(AssetGetInfoRequest);

请求参数

参数	类型	描述
address	String	必填，待查询的账户地址
code	String	必填，资产编码，长度限制[1, 64]
issuer	String	必填，资产发行账户地址

响应数据

参数	类型	描述
asset	AssetInfo[]	账户资产

示例

// 初始化请求参数
AssetGetInfoRequest request = new AssetGetInfoRequest();
request.setAddress("adxSmZHjDopQam2y5ntvHhGk4XEkiXc9MnFWZ");
request.setIssuer("adxSdV6qWfyhJAmzrPbv3btsPPT6aFrqBku3C");
request.setCode("HNC");

// 调用getInfo消息
AssetGetInfoResponse response = sdk.getAssetService().getInfo(request);
if (response.getErrorCode() == 0) {
   AssetGetInfoResult result = response.getResult();
   System.out.println(JSON.toJSONString(result, true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

5.5. 合约服务

合约服务提供合约相关的接口，目前有4个接口：checkValid、getInfo、getAddress、call

checkValid-Contract

接口说明

该接口用于检测合约账户的有效性

调用方法

ContractCheckValidResponse checkValid(ContractCheckValidRequest)

请求参数

参数	类型	描述
contractAddress	String	待检测的合约账户地址

响应数据

参数	类型	描述
isValid	Boolean	是否有效

示例

// 初始化请求参数
ContractCheckValidRequest request = new ContractCheckValidRequest();
request.setContractAddress("adxSYQ8iMyZ7Dkj1oX1kjGMV55WXvoPKcLEK3");

// 调用checkValid接口
ContractCheckValidResponse response = sdk.getContractService().checkValid(request);
if (response.getErrorCode() == 0) {
   ContractCheckValidResult result = response.getResult();
   System.out.println(result.getValid());
} else {
   System.out.println("error: " + response.getErrorDesc());
}

getInfo-Contract

接口说明

该接口用于查询合约代码

调用方法

ContractGetInfoResponse getInfo (ContractGetInfoRequest);

请求参数

参数	类型	描述
contractAddress	String	待查询的合约账户地址

响应数据

参数	类型	描述
contract	ContractInfo	合约信息

示例

// 初始化请求参数
ContractGetInfoRequest request = new ContractGetInfoRequest();
request.setContractAddress("adxSYQ8iMyZ7Dkj1oX1kjGMV55WXvoPKcLEK3");

// 调用getInfo接口
ContractGetInfoResponse response = sdk.getContractService().getInfo(request);
if (response.getErrorCode() == 0) {
   System.out.println(JSON.toJSONString(response.getResult(), true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

getAddress

接口说明

该接口用于查询合约地址

调用方法

ContractGetAddressResponse getInfo (ContractGetAddressRequest);

请求参数

参数	类型	描述
hash	String	创建合约交易的hash

响应数据

参数	类型	描述
contractAddressList	List	合约地址列表

示例

// 初始化请求参数
ContractGetAddressRequest request = new ContractGetAddressRequest();
request.setHash("44246c5ba1b8b835a5cbc29bdc9454cdb9a9d049870e41227f2dcfbcf7a07689");

// 调用getAddress接口
ContractGetAddressResponse response = sdk.getContractService().getAddress(request);
if (response.getErrorCode() == 0) {
System.out.println(JSON.toJSONString(response.getResult(), true));
} else {
System.out.println("error: " + response.getErrorDesc());
}

call

接口说明

该接口用于调试合约代码

调用方法

ContractCallesponse call(ContractCallRequest);

请求参数

参数	类型	描述
sourceAddress	String	选填，合约触发账户地址
contractAddress	String	选填，合约账户地址，与code不能同时为空
code	String	选填，合约代码，与contractAddress不能同时为空，长度限制[1, 64]
input	String	选填，合约入参
contractBalance	String	选填，赋予合约的初始 Gas 余额, 单位UGas，1 Gas = 10^8 UGas, 大小限制[1, Long.MAX_VALUE]
optType	Integer	必填，0: 调用合约的读写接口 init, 1: 调用合约的读写接口 main, 2 :调用只读接口 query
feeLimit	Long	交易要求的最低手续费，大小限制[1, Long.MAX_VALUE]
gasPrice	Long	交易费用单价，按字节收费，大小限制[1000, Long.MAX_VALUE]

响应数据

参数	类型	描述
logs	JSONObject	日志信息
queryRets	JSONArray	查询结果集
stat	ContractStat	合约资源占用信息
txs	TransactionEnvs[]	交易集

示例

// 初始化请求参数
ContractCallRequest request = new ContractCallRequest();
request.setCode("\"use strict\";log(undefined);function query() { getBalance(thisAddress); }");
request.setFeeLimit(1000000000L);
request.setOptType(2);

// 调用call接口
ContractCallResponse response = sdk.getContractService().call(request);
if (response.getErrorCode() == 0) {
   ContractCallResult result = response.getResult();
   System.out.println(JSON.toJSONString(result, true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

5.6. 区块服务

区块服务主要是区块相关的接口，目前有11个接口：getNumber、checkStatus、getTransactions、getInfo、getLatestInfo、getValidators、getLatestValidators、getReward、getLatestReward、getFees、getLatestFees。

getNumber

接口说明

该接口用于查询最新的区块高度。

调用方法

BlockGetNumberResponse getNumber();

响应数据

参数	类型	描述
blockNumber	Long	最新的区块高度，对应底层字段seq

示例

// 调用getNumber接口
BlockGetNumberResponse response = sdk.getBlockService().getNumber();
if(0 == response.getErrorCode()){
   System.out.println(JSON.toJSONString(response.getResult(), true));
}else{
   System.out.println("error: " + response.getErrorDesc());
}

checkStatus

接口说明

该接口用于检查本地节点区块是否同步完成。

调用方法

BlockCheckStatusResponse checkStatus();

响应数据

参数	类型	描述
isSynchronous	Boolean	区块是否同步

示例

// 调用checkStatus
BlockCheckStatusResponse response = sdk.getBlockService().checkStatus();
if(0 == response.getErrorCode()){
   System.out.println(JSON.toJSONString(response.getResult(), true));
}else{
   System.out.println("error: " + response.getErrorDesc());
}

getTransactions

接口说明

该接口用于查询指定区块高度下的所有交易。

调用方法

BlockGetTransactionsResponse getTransactions(BlockGetTransactionsRequest);

请求参数

参数	类型	描述
blockNumber	Long	必填，待查询的区块高度，必须大于0

响应数据

参数	类型	描述
totalCount	Long	返回的总交易数
transactions	TransactionHistory[]	交易内容

示例

// 初始化请求参数
Long blockNumber = 617247L;// 第617247区块
BlockGetTransactionsRequest request = new BlockGetTransactionsRequest();
request.setBlockNumber(blockNumber);

// 调用getTransactions接口
BlockGetTransactionsResponse response = sdk.getBlockService().getTransactions(request);
if(0 == response.getErrorCode()){
   System.out.println(JSON.toJSONString(response.getResult(), true));
}else{
   System.out.println("error: " + response.getErrorDesc());
}

getInfo-Block

接口说明

该接口用于获取区块信息。

调用方法

BlockGetInfoResponse getInfo(BlockGetInfoRequest);

请求参数

参数	类型	描述
blockNumber	Long	必填，待查询的区块高度

响应数据

参数	类型	描述
closeTime	Long	区块关闭时间
number	Long	区块高度
txCount	Long	交易总量
version	String	区块版本

示例

// 初始化请求参数
BlockGetInfoRequest request = new BlockGetInfoRequest();
request.setBlockNumber(629743L);

// 调用getInfo接口
BlockGetInfoResponse response = sdk.getBlockService().getInfo(request);
if (response.getErrorCode() == 0) {
   BlockGetInfoResult result = response.getResult();
   System.out.println(JSON.toJSONString(result, true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

getLatestInfo

接口说明

该接口用于获取最新区块信息。

调用方法

BlockGetLatestInfoResponse getLatestInfo();

响应数据

参数	类型	描述
closeTime	Long	区块关闭时间
number	Long	区块高度，对应底层字段seq
txCount	Long	交易总量
version	String	区块版本

示例

// 调用getLatestInfo接口
BlockGetLatestInfoResponse response = sdk.getBlockService().getLatestInfo();
if (response.getErrorCode() == 0) {
   BlockGetLatestInfoResult result = response.getResult();
   System.out.println(JSON.toJSONString(result, true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

getValidators

接口说明

该接口用于获取指定区块中所有验证节点数。

调用方法

BlockGetValidatorsResponse getValidators(BlockGetValidatorsRequest);

请求参数

参数	类型	描述
blockNumber	Long	必填，待查询的区块高度，必须大于0

响应数据

参数	类型	描述
validators	ValidatorInfo[]	验证节点列表

示例

// 初始化请求参数
BlockGetValidatorsRequest request = new BlockGetValidatorsRequest();
request.setBlockNumber(629743L);

// 调用getValidators接口
BlockGetValidatorsResponse response = sdk.getBlockService().getValidators(request);
if (response.getErrorCode() == 0) {
   BlockGetValidatorsResult result = response.getResult();
   System.out.println(JSON.toJSONString(result, true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

getLatestValidators

接口说明

该接口用于获取最新区块中所有验证节点数。

调用方法

BlockGetLatestValidatorsResponse getLatestValidators();

响应数据

参数	类型	描述
validators	ValidatorInfo[]	验证节点列表

示例

// 调用getLatestValidators接口
BlockGetLatestValidatorsResponse response = sdk.getBlockService().getLatestValidators();
if (response.getErrorCode() == 0) {
   BlockGetLatestValidatorsResult result = response.getResult();
   System.out.println(JSON.toJSONString(result, true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

getReward

接口说明

该接口用于获取指定区块中的区块奖励和验证节点奖励。

调用方法

BlockGetRewardResponse getReward(BlockGetRewardRequest);

请求参数

参数	类型	描述
blockNumber	Long	必填，待查询的区块高度，必须大于0

响应数据

参数	类型	描述
blockReward	Long	区块奖励数
validatorsReward	ValidatorReward[]	验证节点奖励情况

示例

// 初始化请求参数
BlockGetRewardRequest request = new BlockGetRewardRequest();
request.setBlockNumber(629743L);

// 调用getReward接口
BlockGetRewardResponse response = sdk.getBlockService().getReward(request);
if (response.getErrorCode() == 0) {
   BlockGetRewardResult result = response.getResult();
   System.out.println(JSON.toJSONString(result, true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

getLatestReward

接口说明

获取最新区块中的区块奖励和验证节点奖励。

调用方法

BlockGetLatestRewardResponse getLatestReward();

响应数据

参数	类型	描述
blockReward	Long	区块奖励数
validatorsReward	ValidatorReward[]	验证节点奖励情况

示例

// 调用getLatestReward接口
BlockGetLatestRewardResponse response = sdk.getBlockService().getLatestReward();
if (response.getErrorCode() == 0) {
   BlockGetLatestRewardResult result = response.getResult();
   System.out.println(JSON.toJSONString(result, true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

getFees

接口说明

获取指定区块中的账户最低资产限制和费用单价，按字节收费。

调用方法

BlockGetFeesResponse getFees(BlockGetFeesRequest);

请求参数

参数	类型	描述
blockNumber	Long	必填，待查询的区块高度，必须大于0

响应数据

参数	类型	描述
fees	Fees	费用

示例

// 初始化请求参数
BlockGetFeesRequest request = new BlockGetFeesRequest();
request.setBlockNumber(629743L);

// 调用getFees接口
BlockGetFeesResponse response = sdk.getBlockService().getFees(request);
if (response.getErrorCode() == 0) {
   System.out.println(JSON.toJSONString(response.getResult(), true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

getLatestFees

接口说明

该接口用于获取最新区块中的账户最低资产限制和费用单价，按字节收费。

调用方法

BlockGetLatestFeesResponse getLatestFees();

响应数据

参数	类型	描述
fees	Fees	费用

示例

// 调用getLatestFees接口
BlockGetLatestFeesResponse response = sdk.getBlockService().getLatestFees();
if (response.getErrorCode() == 0) {
   System.out.println(JSON.toJSONString(response.getResult(), true));
} else {
   System.out.println("error: " + response.getErrorDesc());
}

6. 场景示例代码

6.1. 生成账户

package cn.bubi.sdk.example;

import com.alibaba.fastjson.JSON;
import cn.bubi.SDK;
import cn.bubi.common.ToBaseUnit;
import cn.bubi.crypto.Keypair;
import cn.bubi.model.request.TransactionBuildBlobRequest;
import cn.bubi.model.request.TransactionSignRequest;
import cn.bubi.model.request.TransactionSubmitRequest;
import cn.bubi.model.request.operation.AccountActivateOperation;
import cn.bubi.model.request.operation.BaseOperation;
import cn.bubi.model.response.TransactionBuildBlobResponse;
import cn.bubi.model.response.TransactionSignResponse;
import cn.bubi.model.response.TransactionSubmitResponse;
import cn.bubi.model.response.result.TransactionBuildBlobResult;
import org.testng.annotations.Test;

import java.util.ArrayList;
import java.util.List;

public class BatchCreateBuchainAccountDemo {
    SDK sdk = SDK.getInstance("http://node.bubidev.cn");
    /**
     * 批量创建账户
     *
     * 注意：一次最多100个创建账户的操作，该操作是原子性的。每个初始化账户推荐给0.02Gas,交易费用100个操作的情况下建议feeLimist为0.1Gas
     */
   @Test
    public void createBuchainAccount(){
        // 推荐人账户地址
        String refereeAddress = "adxSYvndiFG4zpbLGugX3j93fDn9nWZfWp8Gd";
        // 推荐人账户私钥
        String refereePrivateKey = "privbw1Uup9Qif12uysm9LyCby3HC5s6m7FMBzU4Ac64NVZ2tvB4f8wB";

        // 推荐人账户nonce
        // TODO 需要查询当前推荐人的nonce值
        Long refereeNonce = null;
        AccountGetNonceRequest getNonceRequest = new AccountGetNonceRequest();
        getNonceRequest.setAddress(refereeAddress);

// 调用getNonce接口
       AccountGetNonceResponse getNonceResponse =  sdk.getAccountService().getNonce(getNonceRequest);

// 赋值nonce
       if (getNonceResponse.getErrorCode() == 0) {
           AccountGetNonceResult result = getNonceResponse.getResult();
           refereeNonce = result.getNonce()+1;

       }

        // The fixed write 1000L, the unit is UGas
        Long gasPrice = 1000L;
        // Set up the maximum cost 0.01Gas
        Long feeLimit = ToBaseUnit.ToUGas("0.1");

        // 每个账户初始化0.02Gas
        Long initBalance = ToBaseUnit.ToUGas("0.02");
        List<AccountActivateOperation> accountActivateOperationList = new ArrayList<AccountActivateOperation>();
        Keypair keypair;
        // 注意：交易里最多100个操作
        for (int i = 0; i < 100; i++) {
            keypair = Keypair.generator();
            AccountActivateOperation operation = new AccountActivateOperation();
            operation.setSourceAddress(refereeAddress);
            operation.setDestAddress(keypair.getAddress());
            operation.setInitBalance(initBalance);
            accountActivateOperationList.add(operation);
            System.out.println("第" + i + " " + JSON.toJSONString(keypair));
        }

        // 提交交易（广播交易），生成的hash，需要通过hash再次查询交易来确认最终状态。
        String hash = submitTransaction(refereePrivateKey,refereeAddress,accountActivateOperationList,refereeNonce, gasPrice, feeLimit, "");
       if(hash != null){
           System.out.println("tx hash:" + hash);
       }else{
           System.out.println("操作失败");
       }
    }

    /**
     * @param submiterPrivateKey The account private key to start transaction
     * @param submiterAddresss   The account address to start transaction
     * @param operations       operations
     * @param submiterNonce initiation account's Nonce
     * @param gasPrice         Gas price
     * @param feeLimit         fee limit
     * @return java.lang.String transaction hash
     */
    private String submitTransaction(String submiterPrivateKey, String submiterAddresss, List<AccountActivateOperation> operations, Long submiterNonce, Long gasPrice, Long feeLimit, String transMetadata) {
        // 1. Build transaction
        TransactionBuildBlobRequest transactionBuildBlobRequest = new TransactionBuildBlobRequest();
        transactionBuildBlobRequest.setSourceAddress(submiterAddresss);
        transactionBuildBlobRequest.setNonce(submiterNonce);
        transactionBuildBlobRequest.setFeeLimit(feeLimit);
        transactionBuildBlobRequest.setGasPrice(gasPrice);
        for (BaseOperation opt: operations
             ) {
            transactionBuildBlobRequest.addOperation(opt);
        }
        transactionBuildBlobRequest.setMetadata(transMetadata);

        // 2. Build transaction BLob
        String transactionBlob;
        TransactionBuildBlobResponse transactionBuildBlobResponse = sdk.getTransactionService().buildBlob(transactionBuildBlobRequest);
        if (transactionBuildBlobResponse.getErrorCode() != 0) {
            System.out.println("error: " + transactionBuildBlobResponse.getErrorDesc());
            return null;
        }
        TransactionBuildBlobResult transactionBuildBlobResult = transactionBuildBlobResponse.getResult();
        transactionBlob = transactionBuildBlobResult.getTransactionBlob();

        // 3. Sign transaction BLob
        String[] signerPrivateKeyArr = {submiterPrivateKey};
        TransactionSignRequest transactionSignRequest = new TransactionSignRequest();
        transactionSignRequest.setBlob(transactionBlob);
        for (String s : signerPrivateKeyArr) {
            transactionSignRequest.addPrivateKey(s);
        }
        TransactionSignResponse transactionSignResponse = sdk.getTransactionService().sign(transactionSignRequest);
        if (transactionSignResponse.getErrorCode() != 0) {
            System.out.println("error: " + transactionSignResponse.getErrorDesc());
            return null;
        }

        // 4. Broadcast transaction
        String Hash = null;
        TransactionSubmitRequest transactionSubmitRequest = new TransactionSubmitRequest();
        transactionSubmitRequest.setTransactionBlob(transactionBlob);
        transactionSubmitRequest.setSignatures(transactionSignResponse.getResult().getSignatures());
        TransactionSubmitResponse transactionSubmitResponse = sdk.getTransactionService().submit(transactionSubmitRequest);
        if (0 == transactionSubmitResponse.getErrorCode()) {
            Hash = transactionSubmitResponse.getResult().getHash();
        } else {
            System.out.println(JSON.toJSONString(transactionSubmitResponse, true));
        }
        return Hash;
    }


}

6.2. 激活账户

public void activateAccount() {
    // The account private key to activate a new account
    String activatePrivateKey = "privbyQCRp7DLqKtRFCqKQJr81TurTqG6UKXMMtGAmPG3abcM9XHjWvq";
    Long initBalance = ToBaseUnit.ToUGas("1000");
    // The fixed write 1000L, the unit is UGas
    Long gasPrice = 1000L;
    // Set up the maximum cost 0.01Gas
    Long feeLimit = ToBaseUnit.ToUGas("0.01");
    // Transaction initiation account's nonce + 1
    Long nonce = 8L;

    // Generate a new account to be activated
    Keypair keypair = Keypair.generator();
    System.out.println(JSON.toJSONString(keypair, true));
    String destAccount = keypair.getAddress();

    // 1. Get the account address to send this transaction
    String activateAddresss = getAddressByPrivateKey(activatePrivateKey);

    // 2. Build activateAccount
    AccountActivateOperation operation = new AccountActivateOperation();
    operation.setSourceAddress(activateAddresss);
    operation.setDestAddress(destAccount);
    operation.setInitBalance(initBalance);
    operation.setMetadata("activate account");

    String[] signerPrivateKeyArr = {activatePrivateKey};
    // Record txhash for subsequent confirmation of the real result of the transaction.
    // After recommending five blocks, call again through txhash `Get the transaction information
    // from the transaction Hash'(see example: getTxByHash ()) to confirm the final result of the transaction
    String txHash = submitTransaction(signerPrivateKeyArr, activateAddresss, operation, nonce, gasPrice, feeLimit);
    if (txHash != null) {
        System.out.println("hash: " + txHash);
    }
}

6.3. 部署合约

import com.alibaba.fastjson.JSONObject;
import cn.bubi.SDK;
import cn.bubi.common.ToBaseUnit;
import cn.bubi.model.request.*;
import cn.bubi.model.request.operation.BaseOperation;
import cn.bubi.model.request.operation.ContractCreateOperation;
import cn.bubi.model.response.*;
import cn.bubi.model.response.result.data.Signature;
import cn.bubi.model.response.result.data.TransactionHistory;
import org.junit.Test;

/**
 * @Author riven
 */
public class CreateContractDemo {
    public SDK sdk = SDK.getInstance("http://192.168.6.123:19333");
    public String accountAddress = "adxSYmvoQXGc831Swotbah5udGZWoqQjSZpmY";
    public String privateKey = "privbtacCSANUxPn8sXU358Wz3HfXArvmcy7aT9SDdrbPEkYJVGpinUG";
    public String contract = "'use strict';\n function _saveObj(key, value){\n     Chain.store(key, JSON.stringify(value));\n }\n function queryData(params) {\n     let hash= params.hash;\n     let data  = JSON.parse(Chain.load(hash));\n     Utils.assert(data !== false, '10000,The data hashnot existed');\n     return data;\n }\n function store(params){\n     Utils.assert(params.hash!== undefined, '10003,The hashparams error');\n     let hash= params.hash;\n     let data  = JSON.parse(Chain.load(hash));\n     Utils.assert(data === false, '10001,The data hashis already existed');\n     let dataJson = {};\n     dataJson = params.data;\n     Chain.store(hash,JSON.stringify(dataJson));\n }\n function init(input){\n     return;\n }\n function main(input_str){\n     let input = JSON.parse(input_str);\n     if(input.method === 'store'){\n         store(input.params);\n     }\n     else{\n         throw '<Main interface passes an invalid operation type>';\n     }\n }\n function query(input_str){\n     let input  = JSON.parse(input_str);\n     let object ={};\n     if(input.method === 'queryData'){\n         object = queryData(input.params);\n     }\n     else{\n         throw '<unidentified operation type>';\n     }\n     return JSON.stringify(object);\n }";
    @Test
    public void createContract() {
        BaseOperation[] baseOperations = buildOperations();
        long accountNonce = getAccountNonce();
        System.out.println("accountNonce:"+accountNonce);
        String transactionBlob = seralizeTransaction(accountNonce, baseOperations);
        Signature[] signatures = signTransaction(transactionBlob);
        String hash = submitTransaction(transactionBlob, signatures);
        System.out.println("hash:"+hash);
        int errorCode = checkTransactionStatus(hash);
        System.out.println("errorCode:"+errorCode);

    }
    public long getAccountNonce() {
        long nonce = 0;

        // Init request

        AccountGetNonceRequest request = new AccountGetNonceRequest();
        request.setAddress(accountAddress);

        // Call getNonce
        AccountGetNonceResponse response = sdk.getAccountService().getNonce(request);
        if (0 == response.getErrorCode()) {
            nonce = response.getResult().getNonce();
        } else {
            System.out.println("error: " + response.getErrorDesc());
        }
        return nonce;
    }

    public BaseOperation[] buildOperations() {
        // The account address to issue apt1.0 token
        String createContractAddress = accountAddress;
        // Contract account initialization Gas，the unit is UGas，and 1 Gas = 10^8 UGas
        Long initBalance = ToBaseUnit.ToUGas("0.01");
        // The token name
        String name = "Contract Global";
        // The token code
        String symbol = "CGO";
        // The token total supply, which includes the dicimals.
        // If decimals is 8 and you want to issue 10 tokens now, the nowSupply must be 10 * 10 ^ 8, like below.
        String totalSupply = "1000000000";
        // The token decimals
        Integer decimals = 8;
        // Contract code
        String payload = contract;

        // Init initInput
        JSONObject initInput = new JSONObject();
        JSONObject params = new JSONObject();
        params.put("name", name);
        params.put("symbol", symbol);
        params.put("decimals", decimals);
        params.put("totalSupply", totalSupply);
        initInput.put("params", params);

        // Build create contract operation
        ContractCreateOperation contractCreateOperation = new ContractCreateOperation();
        contractCreateOperation.setSourceAddress(createContractAddress);
        contractCreateOperation.setInitBalance(initBalance);
        contractCreateOperation.setPayload(payload);
        contractCreateOperation.setInitInput(initInput.toJSONString());
        contractCreateOperation.setMetadata("create ctp 1.0 contract");

        return new BaseOperation[]{ contractCreateOperation };
    }

    public String seralizeTransaction(Long nonce,  BaseOperation[] operations) {
        String transactionBlob = null;

        // The account address to create contract and issue ctp 1.0 token
        String senderAddresss = accountAddress;
        // The gasPrice is fixed at 1000L, the unit is UGas
        Long gasPrice = 1000L;
        // Set up the maximum cost 10.08Gas
        Long feeLimit = ToBaseUnit.ToUGas("10.08");
        // Nonce should add 1
        nonce += 1;

        // Build transaction  Blob
        TransactionBuildBlobRequest transactionBuildBlobRequest = new TransactionBuildBlobRequest();
        transactionBuildBlobRequest.setSourceAddress(senderAddresss);
        transactionBuildBlobRequest.setNonce(nonce);
        transactionBuildBlobRequest.setFeeLimit(feeLimit);
        transactionBuildBlobRequest.setGasPrice(gasPrice);
        for (BaseOperation operation : operations) {
            transactionBuildBlobRequest.addOperation(operation);
        }
        TransactionBuildBlobResponse transactionBuildBlobResponse = sdk.getTransactionService().buildBlob(transactionBuildBlobRequest);
        if (transactionBuildBlobResponse.getErrorCode() == 0) {
            transactionBlob = transactionBuildBlobResponse. getResult().getTransactionBlob();
        } else {
            System.out.println("error: " + transactionBuildBlobResponse.getErrorDesc());
        }
        return transactionBlob;
    }

    public Signature[] signTransaction(String transactionBlob) {
        Signature[] signatures = null;
        // The account private key to issue atp1.0 token
        String senderPrivateKey = privateKey;

        // Sign transaction BLob
        TransactionSignRequest transactionSignRequest = new TransactionSignRequest();
        transactionSignRequest.setBlob(transactionBlob);
        transactionSignRequest.addPrivateKey(senderPrivateKey);
        TransactionSignResponse transactionSignResponse = sdk.getTransactionService().sign(transactionSignRequest);
        if (transactionSignResponse.getErrorCode() == 0) {
            signatures = transactionSignResponse.getResult().getSignatures();
        } else {
            System.out.println("error: " + transactionSignResponse.getErrorDesc());
        }
        return signatures;
    }

    public String submitTransaction(String transactionBlob, Signature[] signatures) {
        String  hash = null;

        // Submit transaction
        TransactionSubmitRequest transactionSubmitRequest = new TransactionSubmitRequest();
        transactionSubmitRequest.setTransactionBlob(transactionBlob);
        transactionSubmitRequest.setSignatures(signatures);
        TransactionSubmitResponse transactionSubmitResponse = sdk.getTransactionService().submit(transactionSubmitRequest);
        if (0 == transactionSubmitResponse.getErrorCode()) {
            hash = transactionSubmitResponse.getResult().getHash();
        } else {
            System.out.println("error: " + transactionSubmitResponse.getErrorDesc());
        }
        return  hash ;
    }


    public int checkTransactionStatus(String txHash) {
        // Init request
        TransactionGetInfoRequest request = new TransactionGetInfoRequest();
        request.setHash(txHash);

        // Call getInfo
        TransactionGetInfoResponse response = sdk.getTransactionService().getInfo(request);
        int errorCode = response.getErrorCode();
        if (errorCode == 0){
            TransactionHistory transactionHistory = response.getResult().getTransactions()[0];
            errorCode = transactionHistory.getErrorCode();
        }

        return errorCode;
    }

}

6.4. 调用合约

package cn.bubi.sdk.example;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import cn.bubi.SDK;
import cn.bubi.common.ToBaseUnit;
import cn.bubi.encryption.key.PrivateKey;
import cn.bubi.model.request.*;
import cn.bubi.model.request.operation.BaseOperation;
import cn.bubi.model.request.operation.ContractCreateOperation;
import cn.bubi.model.request.operation.ContractInvokeByAssetOperation;
import cn.bubi.model.request.operation.ContractInvokeByGasOperation;
import cn.bubi.model.response.*;
import cn.bubi.model.response.result.ContractCallResult;
import cn.bubi.model.response.result.ContractCheckValidResult;
import cn.bubi.model.response.result.TransactionBuildBlobResult;
import org.testng.annotations.Test;

/**
 * @Author riven
 */
public class ContractDemo {
    SDK sdk = SDK.getInstance("http://node.bubidev.cn");

    /**
     * Check whether the contract is valid
     */
    @Test
    public void checkContractValid() {
        // Init request
        ContractCheckValidRequest request = new ContractCheckValidRequest();
        request.setContractAddress("adxSqKcX8wGCMKhzNUBoDWfbeQaMhfnGdtyG2");

        // Call checkValid
        ContractCheckValidResponse response = sdk.getContractService().checkValid(request);
        if (response.getErrorCode() == 0) {
            ContractCheckValidResult result = response.getResult();
            System.out.println(result.getValid());
        } else {
            System.out.println("error: " + response.getErrorDesc());
        }
    }

    /**
     * Get contract info
     */
    @Test
    public void getContractInfo() {
        // Init request
        ContractGetInfoRequest request = new ContractGetInfoRequest();
        request.setContractAddress("adxSqKcX8wGCMKhzNUBoDWfbeQaMhfnGdtyG2");

        // Call getInfo
        ContractGetInfoResponse response = sdk.getContractService().getInfo(request);
        if (response.getErrorCode() == 0) {
            System.out.println(JSON.toJSONString(response.getResult(), true));
        } else {
            System.out.println("error: " + response.getErrorDesc());
        }
    }

    /**
     * Get contract address
     */
    @Test
    public void getContractAddress() {
        // Init request
        String hash = "44246c5ba1b8b835a5cbc29bdc9454cdb9a9d049870e41227f2dcfbcf7a07689";
        ContractGetAddressRequest request = new ContractGetAddressRequest();
        request.setHash(hash);

        // Call getAddress
        ContractGetAddressResponse response = sdk.getContractService().getAddress(request);
        if (response.getErrorCode() == 0) {
            System.out.println(JSON.toJSONString(response.getResult(), true));
        } else {
            System.out.println("error: " + response.getErrorDesc());
        }
    }

    /**
     * call contract
     */
    @Test
    public void callContract() {
        // Init variable
        // Contract address
        String contractAddress = "adxSqKcX8wGCMKhzNUBoDWfbeQaMhfnGdtyG2";
        // Spender address
        String spender = "adxSYvndiFG4zpbLGugX3j93fDn9nWZfWp8Gd";
        // Amount
        String amount = "1000000";

        // Init input
        JSONObject input = new JSONObject();
        input.put("method", "approve");
        JSONObject params = new JSONObject();
        params.put("spender", spender);
        params.put("value", amount);
        input.put("params", params);

        // Init request
        ContractCallRequest request = new ContractCallRequest();
        request.setContractAddress(contractAddress);
        request.setFeeLimit(1000000000L);
        request.setOptType(1);
        request.setInput(input.toJSONString());

        // Call call
        ContractCallResponse response = sdk.getContractService().call(request);
        if (response.getErrorCode() == 0) {
            ContractCallResult result = response.getResult();
            System.out.println(JSON.toJSONString(result, true));
        } else {
            System.out.println("error: " + response.getErrorDesc());
        }
    }

    /**
     * 创建合约
     */
    @Test
    public void createContract() {
        // The account private key to create contract
        String createPrivateKey = "privbUdwf6xV1d5Jvkcakuz8T8nfFn4U7d5s55VUbwmi79DPxqNWSD1n";
        // Contract account initialization Gas，the unit is UGas，and 1 Gas = 10^8 UGas
        Long initBalance = 100000000L;//ToBaseUnit.ToUGas("0.1");
        // Contract code
        String payload = "\n          \"use strict\";\n          function init(bar)\n          {\n            /*init whatever you want*/\n            return;\n          }\n          \n          function main(input)\n          {\n            let para = JSON.parse(input);\n            if (para.do_foo)\n            {\n              let x = {\n                'hello' : 'world'\n              };\n            }\n          }\n          \n          function query(input)\n          { \n            return input;\n          }\n        ";
        // The fixed write 1000L ，the unit is UGas
        Long gasPrice = 1000L;
        // Set up the maximum cost 10.01Gas
        Long feeLimit = 1015076000L;//ToBaseUnit.ToUGas("10.01");
        // Transaction initiation account's Nonce + 1
        Long nonce = 18L;
        // Contract init function entry
        String initInput = "";

        // 1. Get the account address to send this transaction
        String createAddresss = getAddressByPrivateKey(createPrivateKey);

        // 2. Build activateAccount operation
        ContractCreateOperation operation = new ContractCreateOperation();
        operation.setSourceAddress(createAddresss);
        operation.setInitBalance(initBalance);
        operation.setPayload(payload);
        operation.setInitInput(initInput);
        operation.setMetadata("create contract");

        // Record txhash for subsequent confirmation of the real result of the transaction.
        // After recommending five blocks, call again through txhash `Get the transaction information
        // from the transaction Hash'(see example: getTxByHash ()) to confirm the final result of the transaction
        String txHash = submitTransaction(createPrivateKey, createAddresss, operation, nonce, gasPrice, feeLimit);
        if (txHash != null) {
            System.out.println("hash: " + txHash);
        }
    }

    /**
     * Send asset and trigger contract
     */
    @Test
    public void invokeContractByAsset() {
        // Init variable
        // The account private key to invoke contract
        String invokePrivateKey = "privby8cFTi4ugxc95qJMF5PvCz6PvQAxhUXAZoqFENUKRE19tM1Vbii";
        // The account to receive the assets
        String destAddress = "adxScpCtbeLP2KGRaCkbtrmz8iB5mu6DQcW3r";
        // The asset code to be sent
        String assetCode = "TST";
        // The account address to issue asset
        String assetIssuer = "adxSYvndiFG4zpbLGugX3j93fDn9nWZfWp8Gd";
        // 0 means that the contract is only triggered
        Long amount = 0L;
        // The fixed write 1000L, the unit is UGas
        Long gasPrice = 1000L;
        // Set up the maximum cost 0.01Gas
        Long feeLimit = ToBaseUnit.ToUGas("0.01");
        // Transaction initiation account's Nonce + 1
        Long nonce = 57L;
        // Contract main function entry
        String input = "";

        // 1. Get the account address to send this transaction
        String invokeAddresss = getAddressByPrivateKey(invokePrivateKey);

        // 2. Build sendAsset operation
        ContractInvokeByAssetOperation operation = new ContractInvokeByAssetOperation();
        operation.setSourceAddress(invokeAddresss);
        operation.setContractAddress(destAddress);
        operation.setCode(assetCode);
        operation.setIssuer(assetIssuer);
        operation.setAssetAmount(amount);
        operation.setInput(input);
        operation.setMetadata("send token");

        // Record txhash for subsequent confirmation of the real result of the transaction.
        // After recommending five blocks, call again through txhash `Get the transaction information
        // from the transaction Hash'(see example: getTxByHash ()) to confirm the final result of the transaction
        String txHash = submitTransaction(invokePrivateKey, invokeAddresss, operation, nonce, gasPrice, feeLimit);
        if (txHash != null) {
            System.out.println("hash: " + txHash);
        }
    }

    /**
     * Send Gas and trigger contract
     */
    @Test
    public void invokeContractByGas() {
        // Init variable
        // The account private key to invoke contract
        String invokePrivateKey = "privby8cFTi4ugxc95qJMF5PvCz6PvQAxhUXAZoqFENUKRE19tM1Vbii";
        // The account to receive the Gas
        String destAddress = "adxSqKcX8wGCMKhzNUBoDWfbeQaMhfnGdtyG2";
        // 0 means that the contract is only triggered
        Long amount = 0L;
        // The fixed write 1000L, the unit is UGas
        Long gasPrice = 1000L;
        // Set up the maximum cost 0.01Gas
        Long feeLimit = ToBaseUnit.ToUGas("0.01");
        // Transaction initiation account's Nonce + 1
        Long nonce = 58L;
        // Contract main function entry
        String input = "";

        // 1. Get the account address to send this transaction
        String invokeAddresss = getAddressByPrivateKey(invokePrivateKey);

        // 2. Build sendAsset operation
        ContractInvokeByGasOperation operation = new ContractInvokeByGasOperation();
        operation.setSourceAddress(invokeAddresss);
        operation.setContractAddress(destAddress);
        operation.setBuAmount(amount);
        operation.setInput(input);

        // Record txhash for subsequent confirmation of the real result of the transaction.
        // After recommending five blocks, call again through txhash `Get the transaction information
        // from the transaction Hash'(see example: getTxByHash ()) to confirm the final result of the transaction
        String txHash = submitTransaction(invokePrivateKey, invokeAddresss, operation, nonce, gasPrice, feeLimit);
        if (txHash != null) {
            System.out.println("hash: " + txHash);
        }
    }

    /**
     * @param senderPrivateKey The account private key to start transaction
     * @param senderAddresss   The account address to start transaction
     * @param operation        operation
     * @param senderNonce      Transaction initiation account's Nonce
     * @param gasPrice         Gas price
     * @param feeLimit         fee limit
     * @return java.lang.String transaction hash
     * @author riven
     */
    private String submitTransaction(String senderPrivateKey, String senderAddresss, BaseOperation operation, Long senderNonce, Long gasPrice, Long feeLimit) {
        // 3. Build transaction
        TransactionBuildBlobRequest transactionBuildBlobRequest = new TransactionBuildBlobRequest();
        transactionBuildBlobRequest.setSourceAddress(senderAddresss);
        transactionBuildBlobRequest.setNonce(senderNonce);
        transactionBuildBlobRequest.setFeeLimit(feeLimit);
        transactionBuildBlobRequest.setGasPrice(gasPrice);
        transactionBuildBlobRequest.addOperation(operation);
        // transactionBuildBlobRequest.setMetadata("abc");

        // 4. Build transaction BLob
        String transactionBlob;
        TransactionBuildBlobResponse transactionBuildBlobResponse = sdk.getTransactionService().buildBlob(transactionBuildBlobRequest);
        if (transactionBuildBlobResponse.getErrorCode() != 0) {
            System.out.println("error: " + transactionBuildBlobResponse.getErrorDesc());
            return null;
        }
        TransactionBuildBlobResult transactionBuildBlobResult = transactionBuildBlobResponse.getResult();
        String txHash = transactionBuildBlobResult.getHash();
        transactionBlob = transactionBuildBlobResult.getTransactionBlob();

        // 5. Sign transaction BLob
        String[] signerPrivateKeyArr = {senderPrivateKey};
        TransactionSignRequest transactionSignRequest = new TransactionSignRequest();
        transactionSignRequest.setBlob(transactionBlob);
        for (String s : signerPrivateKeyArr) {
            transactionSignRequest.addPrivateKey(s);
        }
        TransactionSignResponse transactionSignResponse = sdk.getTransactionService().sign(transactionSignRequest);
        if (transactionSignResponse.getErrorCode() != 0) {
            System.out.println("error: " + transactionSignResponse.getErrorDesc());
            return null;
        }

        // 6. Broadcast
        TransactionSubmitRequest transactionSubmitRequest = new TransactionSubmitRequest();
        transactionSubmitRequest.setTransactionBlob(transactionBlob);
        transactionSubmitRequest.setSignatures(transactionSignResponse.getResult().getSignatures());
        TransactionSubmitResponse transactionSubmitResponse = sdk.getTransactionService().submit(transactionSubmitRequest);
        if (0 == transactionSubmitResponse.getErrorCode()) {
            System.out.println("Success，hash=" + transactionSubmitResponse.getResult().getHash());
        } else {
            System.out.println("Failure，hash=" + transactionSubmitResponse.getResult().getHash() + "");
            System.out.println(JSON.toJSONString(transactionSubmitResponse, true));
        }
        return txHash;
    }

    /**
     * @param privatekey private key
     * @return java.lang.String Account address
     * @author riven
     */
    private String getAddressByPrivateKey(String privatekey) {
        String publicKey = PrivateKey.getEncPublicKey(privatekey);
        return PrivateKey.getEncAddress(publicKey);
    }
}

6.5. 交易

package cn.bubi.sdk.example;

import com.alibaba.fastjson.JSON;
import cn.bubi.SDK;
import cn.bubi.common.ToBaseUnit;
import cn.bubi.model.request.AccountGetNonceRequest;
import cn.bubi.model.request.TransactionBuildBlobRequest;
import cn.bubi.model.request.TransactionSignRequest;
import cn.bubi.model.request.TransactionSubmitRequest;
import cn.bubi.model.request.operation.GasSendOperation;
import cn.bubi.model.response.AccountGetNonceResponse;
import cn.bubi.model.response.TransactionBuildBlobResponse;
import cn.bubi.model.response.TransactionSignResponse;
import cn.bubi.model.response.TransactionSubmitResponse;
import cn.bubi.model.response.result.AccountGetNonceResult;
import cn.bubi.model.response.result.TransactionBuildBlobResult;
import cn.bubi.model.response.result.TransactionSignResult;
import org.testng.annotations.Test;

/**
 * @Author riven
 */
public class submitTransactionDemo {
    SDK sdk = SDK.getInstance("http://node.bubidev.cn");

    /*
     * Get account nonce to start transaction
     */
    @Test
    public void getAccountNonce() {
        // Init request
        String senderAddress = "adxSYvndiFG4zpbLGugX3j93fDn9nWZfWp8Gd";
        AccountGetNonceRequest getNonceRequest = new AccountGetNonceRequest();
        getNonceRequest.setAddress(senderAddress);

        // Call getNonce
        AccountGetNonceResponse getNonceResponse = sdk.getAccountService().getNonce(getNonceRequest);

        // Get nonce
        if (getNonceResponse.getErrorCode() == 0) {
            AccountGetNonceResult result = getNonceResponse.getResult();
            System.out.println("nonce: " + result.getNonce());
        } else {
            System.out.println("error" + getNonceResponse.getErrorDesc());
        }
    }

    /*
     * Build operation
     */
    @Test
    public void buildOperation() {
        String senderAddress = "adxSYvndiFG4zpbLGugX3j93fDn9nWZfWp8Gd";
        String destAddress = "adxScpCtbeLP2KGRaCkbtrmz8iB5mu6DQcW3r";
        Long amount = ToBaseUnit.ToUGas("10.9");

        GasSendOperation operation = new GasSendOperation();
        operation.setSourceAddress(senderAddress);
        operation.setDestAddress(destAddress);
        operation.setAmount(amount);

        System.out.println(JSON.toJSONString(operation, true));
    }

    /*
     * Build transaction blob
     */
    @Test
    public void buildTransactionBlob() {
        // Get the nonce above getAccountNonce interface
        String senderAddress = "adxSYvndiFG4zpbLGugX3j93fDn9nWZfWp8Gd";
        AccountGetNonceRequest getNonceRequest = new AccountGetNonceRequest();
        getNonceRequest.setAddress(senderAddress);
        AccountGetNonceResponse getNonceResponse = sdk.getAccountService().getNonce(getNonceRequest);
        Long nonce;
        if (getNonceResponse.getErrorCode() == 0) {
            AccountGetNonceResult result = getNonceResponse.getResult();
            nonce = result.getNonce();
        } else {
            System.out.println("error" + getNonceResponse.getErrorDesc());
            return;
        }

        // Get the operation above buildOperation interface
        String destAddress = "adxScpCtbeLP2KGRaCkbtrmz8iB5mu6DQcW3r";
        Long amount = ToBaseUnit.ToUGas("10.9");
        GasSendOperation operation = new GasSendOperation();
        operation.setSourceAddress(senderAddress);
        operation.setDestAddress(destAddress);
        operation.setAmount(amount);

        // Init variable
        Long gasPrice = 1000L;
        Long feeLimit = ToBaseUnit.ToUGas("0.01");
        // Init request
        TransactionBuildBlobRequest buildBlobRequest = new TransactionBuildBlobRequest();
        buildBlobRequest.setSourceAddress(senderAddress);
        buildBlobRequest.setNonce(nonce + 1);
        buildBlobRequest.setFeeLimit(feeLimit);
        buildBlobRequest.setGasPrice(gasPrice);
        buildBlobRequest.addOperation(operation);
        // Build buildBlob
        TransactionBuildBlobResponse buildBlobResponse = sdk.getTransactionService().buildBlob(buildBlobRequest);
        if (buildBlobResponse.getErrorCode() == 0) {
            TransactionBuildBlobResult result = buildBlobResponse.getResult();
            System.out.println("txHash: " + result.getHash() + ", blob: " + result.getTransactionBlob());
        } else {
            System.out.println("error: " + buildBlobResponse.getErrorDesc());
        }
    }

    /*
     * Sign transaction
     */
    @Test
    public void signTransaction() {
        // Get the nonce above getAccountNonce interface
        String senderAddress = "adxSYvndiFG4zpbLGugX3j93fDn9nWZfWp8Gd";
        AccountGetNonceRequest getNonceRequest = new AccountGetNonceRequest();
        getNonceRequest.setAddress(senderAddress);
        AccountGetNonceResponse getNonceResponse = sdk.getAccountService().getNonce(getNonceRequest);
        Long nonce;
        if (getNonceResponse.getErrorCode() == 0) {
            AccountGetNonceResult result = getNonceResponse.getResult();
            nonce = result.getNonce();
        } else {
            System.out.println("error" + getNonceResponse.getErrorDesc());
            return;
        }

        // Get the operation above buildOperation interface
        String destAddress = "adxScpCtbeLP2KGRaCkbtrmz8iB5mu6DQcW3r";
        Long amount = ToBaseUnit.ToUGas("10.9");
        GasSendOperation operation = new GasSendOperation();
        operation.setSourceAddress(senderAddress);
        operation.setDestAddress(destAddress);
        operation.setAmount(amount);

        // Get the transaction blob above buildTransactionBlob interface
        Long gasPrice = 1000L;
        Long feeLimit = ToBaseUnit.ToUGas("0.01");
        TransactionBuildBlobRequest buildBlobRequest = new TransactionBuildBlobRequest();
        buildBlobRequest.setSourceAddress(senderAddress);
        buildBlobRequest.setNonce(nonce + 1);
        buildBlobRequest.setFeeLimit(feeLimit);
        buildBlobRequest.setGasPrice(gasPrice);
        buildBlobRequest.addOperation(operation);
        String transactionBlob;
        TransactionBuildBlobResponse buildBlobResponse = sdk.getTransactionService().buildBlob(buildBlobRequest);
        if (buildBlobResponse.getErrorCode() == 0) {
            TransactionBuildBlobResult result = buildBlobResponse.getResult();
            transactionBlob = result.getTransactionBlob();
        } else {
            System.out.println("error: " + buildBlobResponse.getErrorDesc());
            return;
        }

        // Init request
        String senderPrivateKey = "privbyQCRp7DLqKtRFCqKQJr81TurTqG6UKXMMtGAmPG3abcM9XHjWvq";
        String[] signerPrivateKeyArr = {senderPrivateKey};
        TransactionSignRequest signRequest = new TransactionSignRequest();
        signRequest.setBlob(transactionBlob);
        for (String s : signerPrivateKeyArr) {
            signRequest.addPrivateKey(s);
        }
        // Call sign
        TransactionSignResponse signResponse = sdk.getTransactionService().sign(signRequest);
        if (signResponse.getErrorCode() == 0) {
            TransactionSignResult result = signResponse.getResult();
            System.out.println(JSON.toJSONString(result, true));
        } else {
            System.out.println("error: " + signResponse.getErrorDesc());
        }
    }

    /*
     * Broadcast transaction
     */
    @Test
    public void broadcastTransaction() {
        // Get the nonce above getAccountNonce interface
        String senderAddress = "adxSYvndiFG4zpbLGugX3j93fDn9nWZfWp8Gd";
        AccountGetNonceRequest getNonceRequest = new AccountGetNonceRequest();
        getNonceRequest.setAddress(senderAddress);
        AccountGetNonceResponse getNonceResponse = sdk.getAccountService().getNonce(getNonceRequest);
        Long nonce;
        if (getNonceResponse.getErrorCode() == 0) {
            AccountGetNonceResult result = getNonceResponse.getResult();
            nonce = result.getNonce();
        } else {
            System.out.println("error" + getNonceResponse.getErrorDesc());
            return;
        }

        // Get the operation above buildOperation interface
        String destAddress = "adxScpCtbeLP2KGRaCkbtrmz8iB5mu6DQcW3r";
        Long amount = ToBaseUnit.ToUGas("10.9");
        GasSendOperation operation = new GasSendOperation();
        operation.setSourceAddress(senderAddress);
        operation.setDestAddress(destAddress);
        operation.setAmount(amount);

        // Get the transaction blob above buildTransactionBlob interface
        Long gasPrice = 1000L;
        Long feeLimit = ToBaseUnit.ToUGas("0.01");
        TransactionBuildBlobRequest buildBlobRequest = new TransactionBuildBlobRequest();
        buildBlobRequest.setSourceAddress(senderAddress);
        buildBlobRequest.setNonce(nonce + 1);
        buildBlobRequest.setFeeLimit(feeLimit);
        buildBlobRequest.setGasPrice(gasPrice);
        buildBlobRequest.addOperation(operation);
        String transactionBlob;
        TransactionBuildBlobResponse buildBlobResponse = sdk.getTransactionService().buildBlob(buildBlobRequest);
        if (buildBlobResponse.getErrorCode() == 0) {
            TransactionBuildBlobResult result = buildBlobResponse.getResult();
            transactionBlob = result.getTransactionBlob();
        } else {
            System.out.println("error: " + buildBlobResponse.getErrorDesc());
            return;
        }

        // Get sign result above signTransaction interface
        String senderPrivateKey = "privbyQCRp7DLqKtRFCqKQJr81TurTqG6UKXMMtGAmPG3abcM9XHjWvq";
        String[] signerPrivateKeyArr = {senderPrivateKey};
        TransactionSignRequest signRequest = new TransactionSignRequest();
        signRequest.setBlob(transactionBlob);
        for (String s : signerPrivateKeyArr) {
            signRequest.addPrivateKey(s);
        }
        TransactionSignResult signResult;
        TransactionSignResponse signResponse = sdk.getTransactionService().sign(signRequest);
        if (signResponse.getErrorCode() == 0) {
            signResult = signResponse.getResult();
        } else {
            System.out.println("error: " + signResponse.getErrorDesc());
            return;
        }

        // Init request
        TransactionSubmitRequest submitRequest = new TransactionSubmitRequest();
        submitRequest.setTransactionBlob(transactionBlob);
        submitRequest.setSignatures(signResult.getSignatures());
        // Call submit
        TransactionSubmitResponse response = sdk.getTransactionService().submit(submitRequest);
        if (0 == response.getErrorCode()) {
            System.out.println("Success，hash=" + response.getResult().getHash());
        } else {
            System.out.println("error: " + response.getErrorDesc());
        }
    }
}

6.6. 交易查询

public int checkTransactionStatus(String txHash) {
    // Init request
    TransactionGetInfoRequest request = new TransactionGetInfoRequest();
    request.setHash(txHash);

    // Call getInfo
    TransactionGetInfoResponse response = sdk.getTransactionService().getInfo(request);
    int errorCode = response.getErrorCode();
    if (errorCode == 0){
        TransactionHistory transactionHistory = response.getResult().getTransactions()[0];
        errorCode = transactionHistory.getErrorCode();
    }

    return errorCode;
 }

7. 错误码

异常	错误码	描述
ACCOUNT_CREATE_ERROR	11001	Failed to create the account
INVALID_SOURCGasDDRESS_ERROR	11002	Invalid sourceAddress
INVALID_DESTADDRESS_ERROR	11003	Invalid destAddress
INVALID_INITBALANCE_ERROR	11004	InitBalance must be between 1 and Long.MAX_VALUE
SOURCGasDDRESS_EQUAL_DESTADDRESS_ERROR	11005	SourceAddress cannot be equal to destAddress
INVALID_ADDRESS_ERROR	11006	Invalid address
CONNECTNETWORK_ERROR	11007	Failed to connect to the network
INVALID_ISSUE_AMOUNT_ERROR	11008	Amount of the token to be issued must be between 1 and Long.MAX_VALUE
NO_ASSET_ERROR	11009	The account does not have the asset
NO_METADATA_ERROR	11010	The account does not have the metadata
INVALID_DATAKEY_ERROR	11011	The length of key must be between 1 and 1024
INVALID_DATAVALUE_ERROR	11012	The length of value must be between 0 and 256000
INVALID_DATAVERSION_ERROR	11013	The version must be equal to or greater than 0
INVALID_MASTERWEIGHT_ERROR	11015	MasterWeight must be between 0 and (Integer.MAX_VALUE * 2L + 1)
INVALID_SIGNER_ADDRESS_ERROR	11016	Invalid signer address
INVALID_SIGNER_WEIGHT_ERROR	11017	Signer weight must be between 0 and (Integer.MAX_VALUE * 2L + 1)
INVALID_TX_THRESHOLD_ERROR	11018	TxThreshold must be between 0 and Long.MAX_VALUE
INVALID_OPERATION_TYPE_ERROR	11019	Operation type must be between 1 and 100
INVALID_TYPE_THRESHOLD_ERROR	11020	TypeThreshold must be between 0 and Long.MAX_VALUE
INVALID_ASSET_CODE_ERROR	11023	The length of key must be between 1 and 64
INVALID_ASSET_AMOUNT_ERROR	11024	AssetAmount must be between 0 and Long.MAX_VALUE
INVALID_GAS_AMOUNT_ERROR	11026	GasAmount must be between 0 and Long.MAX_VALUE
INVALID_ISSUER_ADDRESS_ERROR	11027	Invalid issuer address
NO_SUCH_TOKEN_ERROR	11030	No such token
INVALID_TOKEN_NAME_ERROR	11031	The length of token name must be between 1 and 1024
INVALID_TOKEN_SIMBOL_ERROR	11032	The length of symbol must be between 1 and 1024
INVALID_TOKEN_DECIMALS_ERROR	11033	Decimals must be between 0 and 8
INVALID_TOKEN_TOTALSUPPLY_ERROR	11034	TotalSupply must be between 1 and Long.MAX_VALUE
INVALID_TOKENOWNER_ERRPR	11035	Invalid token owner
INVALID_CONTRACTADDRESS_ERROR	11037	Invalid contract address
CONTRACTADDRESS_NOT_CONTRACTACCOUNT_ERROR	11038	contractAddress is not a contract account
INVALID_TOKEN_AMOUNT_ERROR	11039	TokenAmount must be between 1 and Long.MAX_VALUE
SOURCGasDDRESS_EQUAL_CONTRACTADDRESS_ERROR	11040	SourceAddress cannot be equal to contractAddress
INVALID_FROMADDRESS_ERROR	11041	Invalid fromAddress
FROMADDRESS_EQUAL_DESTADDRESS_ERROR	11042	FromAddress cannot be equal to destAddress
INVALID_SPENDER_ERROR	11043	Invalid spender
PAYLOAD_EMPTY_ERROR	11044	Payload cannot be empty
INVALID_LOG_TOPIC_ERROR	11045	The length of a log topic must be between 1 and 128
INVALID_LOG_DATA_ERROR	11046	The length of one piece of log data must be between 1 and1024
INVALID_CONTRACT_TYPE_ERROR	11047	Invalid contract type
INVALID_NONCE_ERROR	11048	Nonce must be between 1 and Long.MAX_VALUE
INVALID_GASPRICE_ERROR	11049	GasPrice must be between 1000 and Long.MAX_VALUE
INVALID_FEELIMIT_ERROR	11050	FeeLimit must be between 1 and Long.MAX_VALUE
OPERATIONS_EMPTY_ERROR	11051	Operations cannot be empty
INVALID_CEILLEDGERSEQ_ERROR	11052	CeilLedgerSeq must be equal to or greater than 0
OPERATIONS_ONE_ERROR	11053	One of the operations cannot be resolved
INVALID_SIGNATURENUMBER_ERROR	11054	SignagureNumber must be between 1 and Integer.MAX_VALUE
INVALID_HASH_ERROR	11055	Invalid transaction hash
INVALID_BLOB_ERROR	11056	Invalid blob
PRIVATEKEY_NULL_ERROR	11057	PrivateKeys cannot be empty
PRIVATEKEY_ONE_ERROR	11058	One of privateKeys is invalid
SIGNDATA_NULL_ERROR	11059	SignData cannot be empty
INVALID_BLOCKNUMBER_ERROR	11060	BlockNumber must be bigger than 0
PUBLICKEY_NULL_ERROR	11061	PublicKey cannot be empty
URL_EMPTY_ERROR	11062	Url cannot be empty
CONTRACTADDRESS_CODE_BOTH_NULL_ERROR	11063	ContractAddress and code cannot be empty at the same time
INVALID_OPTTYPE_ERROR	11064	OptType must be between 0 and 2
GET_ALLOWANCE_ERROR	11065	Failed to get allowance
GET_TOKEN_INFO_ERROR	11066	Failed to get token info
SIGNATURE_EMPTY_ERROR	11067	The signatures cannot be empty
REQUEST_NULL_ERROR	12001	Request parameter cannot be null
CONNECTN_BLOCKCHAIN_ERROR	19999	Failed to connect to the blockchain
SYSTEM_ERROR	20000	System error

8. 常见问题

待收集

1. 功能介绍​

2. 准备工作​

2.1. 环境要求​

3. 安装​

4. 使用说明​

4.1. 实例化SDK​

4.2. 获取账户nonce值​

4.3. 构建操作​

4.4. 序列化交易​

4.5. 签名交易​

4.6. 提交交易​

4.7. 查询交易结果​

5. SDK接口​

5.1. 交易服务​

5.2. 操作结构​

AccountSetMetadataOperation​

AccountSetPrivilegeOperation​

AssetIssueOperation​

AssetSendOperation​

GasSendOperation​

ContractCreateOperation​

ContractInvokeByAssetOperation​

ContractInvokeByGasOperation​

LogCreateOperation​

5.3. 账户服务​

checkValid​

getInfo-Account​

getNonce​

getBalance​

getAssets​

getMetadata​

5.4. 资产服务​

getInfo-Asset​

5.5. 合约服务​

checkValid-Contract​

getInfo-Contract​

getAddress​

call​

5.6. 区块服务​

getNumber​

checkStatus​

getTransactions​

getInfo-Block​

getLatestInfo​

getValidators​

getLatestValidators​

getReward​

getLatestReward​

getFees​

getLatestFees​

6. 场景示例代码​

6.1. 生成账户​

6.2. 激活账户​

6.3. 部署合约​

6.4. 调用合约​

6.5. 交易​

6.6. 交易查询​

7. 错误码​

8. 常见问题​

1. 功能介绍

2. 准备工作

2.1. 环境要求

3. 安装

4. 使用说明

4.1. 实例化SDK

4.2. 获取账户nonce值

4.3. 构建操作

4.4. 序列化交易

4.5. 签名交易

4.6. 提交交易

4.7. 查询交易结果

5. SDK接口

5.1. 交易服务

5.2. 操作结构

AccountSetMetadataOperation

AccountSetPrivilegeOperation

AssetIssueOperation

AssetSendOperation

GasSendOperation

ContractCreateOperation

ContractInvokeByAssetOperation

ContractInvokeByGasOperation

LogCreateOperation

5.3. 账户服务

checkValid

getInfo-Account

getNonce

getBalance

getAssets

getMetadata

5.4. 资产服务

getInfo-Asset

5.5. 合约服务

checkValid-Contract

getInfo-Contract

getAddress

call

5.6. 区块服务

getNumber

checkStatus

getTransactions

getInfo-Block

getLatestInfo

getValidators

getLatestValidators

getReward

getLatestReward

getFees

getLatestFees

6. 场景示例代码

6.1. 生成账户

6.2. 激活账户

6.3. 部署合约

6.4. 调用合约

6.5. 交易

6.6. 交易查询

7. 错误码

8. 常见问题