第三章 通过java SDK 实现个性化智能合约的部署与测试
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前提
已经部署好底层,外网可以正常请求访问。
正常流程
1、基础合约处理
https://fisco-bcos-documentation.readthedocs.io/zh_CN/latest/docs/tutorial/sdk_application.html#id2
将官方的Asset.sol 代码copy,使用vim Asset.sol 命令创建,copy 到里面。
上一小节,我们根据业务需求设计了合约Asset.sol的存储与接口,给出了完整实现,但是Java程序无法直接调用Solidity合约,需要先将Solidity合约文件编译为Java文件。
控制台提供了编译工具,可以将Asset.sol合约文件存放在console/contracts/solidity目录。利用console目录下提供的sol2java.sh脚本进行编译,操作如下:
# 切换到fisco/console/目录 $ cd ~/fisco/console/ # 编译合约,后面指定一个Java的包名参数,可以根据实际项目路径指定包名 $ ./sol2java.sh org.fisco.bcos.asset.contract
2、合约转化
用官方的asset_app,自己生成的在sdk 那边用有问题
运行成功之后,将会在console/contracts/sdk目录生成java、abi和bin目录,如下所示。
java目录下生成了org/fisco/bcos/asset/contract/包路径目录,该目录下包含Asset.java和Table.java两个文件,其中Asset.java是Java应用调用Asset.sol合约需要的文件。
3、SDK配置
我们提供了一个Java工程项目供开发使用,首先获取Java工程项目:
# 获取Java工程项目压缩包 $ cd ~ $ curl -LO https://github.com/FISCO-BCOS/LargeFiles/raw/master/tools/asset-app.tar.gz # 解压得到Java工程项目asset-app目录 $ tar -zxf asset-app.tar.gz
asset-app项目的目录结构如下:
4、使用sdk进行开发
将asset_app 的sol、指定的合约的java、abi、bin等文件copy 到项目中,使用winscp等软件copy
5、底层部署和测试
· 编译
# 切换到项目目录 $ cd ~/asset-app # 编译项目 $ ./gradlew build
编译成功之后,将在项目根目录下生成dist目录。dist目录下有一个asset_run.sh脚本,简化项目运行。现在开始一一验证本文开始定下的需求。
· 部署Asset.sol合约
# 进入dist目录 $ cd dist $ bash asset_run.sh deploy Deploy Asset succesfully, contract address is 0xd09ad04220e40bb8666e885730c8c460091a4775
· 注册资产
$ bash asset_run.sh register Alice 100000 Register account succesfully=> account: Alice, value: 100000 $ bash asset_run.sh register Bob 100000 Register account succesfully=> account: Bob, value: 100000
· 查询资产
$ bash asset_run.sh query Alice account Alice, value 100000 $ bash asset_run.sh query Bob account Bob, value 100000
· 资产转移
$ bash asset_run.sh transfer Alice Bob 50000 Transfer successfully=> from_account: Alice, to_account: Bob, amount: 50000 $ bash asset_run.sh query Alice account Alice, value 50000 $ bash asset_run.sh query Bob account Bob, value 150000
6、本地编写单元测试
1 package customTest; 2 3 import javafx.concurrent.Service; 4 import org.fisco.bcos.Application; 5 import org.fisco.bcos.solidity.Asset; 6 import org.fisco.bcos.temp.HelloWorld; 7 import org.fisco.bcos.web3j.crypto.Credentials; 8 import org.fisco.bcos.web3j.crypto.gm.GenCredential; 9 import org.fisco.bcos.web3j.protocol.Web3j; 10 import org.fisco.bcos.web3j.protocol.core.methods.response.TransactionReceipt; 11 import org.fisco.bcos.web3j.tuples.generated.Tuple2; 12 import org.fisco.bcos.web3j.tx.gas.StaticGasProvider; 13 import org.junit.After; 14 import org.junit.Before; 15 import org.junit.Test; 16 import org.junit.runner.RunWith; 17 import org.springframework.beans.factory.annotation.Autowired; 18 import org.springframework.boot.test.context.SpringBootTest; 19 import org.springframework.context.ApplicationContext; 20 import org.springframework.context.support.ClassPathXmlApplicationContext; 21 import org.springframework.test.context.junit4.SpringRunner; 22 23 import java.math.BigInteger; 24 25 import static org.junit.Assert.assertTrue; 26 27 @RunWith(SpringRunner.class) 28 @SpringBootTest(classes = Application.class) 29 public class AssetTest { 30 private Credentials credentials; 31 private static BigInteger gasPrice = new BigInteger("300000000"); 32 private static BigInteger gasLimit = new BigInteger("300000000"); 33 @Autowired 34 Web3j web3j; 35 36 //这很重要,没有这个无法通过 37 @Before 38 public void setUp() throws Exception { 39 /* credentials = 40 GenCredential.create( 41 "b83261efa42895c38c6c2364ca878f43e77f3cddbc922bf57d0d48070f79feb6"); 42 if (credentials == null) { 43 throw new Exception("create Credentials failed"); 44 }*/ 45 46 credentials = GenCredential.create(); 47 } 48 49 @After 50 public void tearDown() { 51 } 52 53 @Test 54 public void DoAsset() throws Exception { 55 AssetRegisterAndQuery(); 56 //DeployAsset(); 57 58 } 59 @Test 60 //部署合约 61 public void DeployAsset() throws Exception { 62 // 部署合约 63 Asset asset = Asset.deploy(web3j, credentials, new StaticGasProvider(gasPrice, gasLimit)).send(); 64 65 if (asset != null) { 66 System.out.println("HelloWorld address is: " + asset.getContractAddress()); 67 } 68 69 } 70 @Test 71 //用户注册 资产查询 72 public void AssetRegisterAndQuery()throws Exception { 73 String contractAddress = "0xf9343346a8d80c3d2f2026bf72fff3aec48a4133"; 74 // 加载合约地址 75 Asset asset = Asset.load(contractAddress, web3j, credentials, new StaticGasProvider(gasPrice, gasLimit)); 76 77 if (asset != null) { 78 System.out.println("Asset address is: " + asset.getContractAddress()); 79 // call set function 80 System.out.println("1、注册用户,并注册资产--------------------------------------"); 81 String assetAccount1="0x608153babb8b00f11523f6b1b2b225ea9e7dfd8b"; 82 String assetAccount2="0x86f17b879ce121e5d00351a120de0bd39867bf4c"; 83 // register接口调用 84 TransactionReceipt receipt1 = asset.register(assetAccount1, new BigInteger("121210000") ).send(); 85 TransactionReceipt receipt2 = asset.register(assetAccount2, new BigInteger("121121213") ).send(); 86 87 System.out.println("receipt1="+receipt1.toString()); 88 System.out.println("receipt2="+receipt2.toString()); 89 90 System.out.println("2、查询用户资产----------------------------------------------"); 91 // select接口调用 92 Tuple2<BigInteger, BigInteger> result1 = asset.select("abc").send(); 93 Tuple2<BigInteger, BigInteger> result2 = asset.select("ddd").send(); 94 System.out.println("Tuple2<BigInteger, BigInteger> result1="+result1.toString()); 95 System.out.println("Tuple2<BigInteger, BigInteger> result2="+result2.toString()); 96 //assertTrue("Hello, World!".equals(result)); 97 } 98 99 100 } 101 102 // 资产交易 103 @Test 104 public void AssetTransfer() throws Exception{ 105 106 String contractAddress = "0xf9343346a8d80c3d2f2026bf72fff3aec48a4133"; 107 // 加载合约地址 108 Asset asset = Asset.load(contractAddress, web3j, credentials, new StaticGasProvider(gasPrice, gasLimit)); 109 110 String fromAssetAccount="0x608153babb8b00f11523f6b1b2b225ea9e7dfd8b"; 111 String toAssetAccount="0x86f17b879ce121e5d00351a120de0bd39867bf4c"; 112 BigInteger amount = new BigInteger("121210000"); 113 if (asset != null) { 114 // transfer接口 115 TransactionReceipt receipt = asset.transfer( fromAssetAccount,toAssetAccount, amount).send(); 116 System.out.println("AssetTest.AssetTransfer receipt="+receipt.toString()); 117 } 118 119 } 120 }
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