pragma solidity >=0.4.0 <0.7.0;

 contract test{

     uint public aa=0;

     function set(uint tt) public{

         aa=tt;

     }

      function get() public view returns (uint) {

         return aa;

     }

 }

# 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

 package customTest;

 import org.fisco.bcos.Application;

 import org.fisco.bcos.solidity.Asset;

 import org.fisco.bcos.solidity.SolToJavaTest;

 import org.fisco.bcos.web3j.crypto.Credentials;

 import org.fisco.bcos.web3j.crypto.gm.GenCredential;

 import org.fisco.bcos.web3j.protocol.Web3j;

 import org.fisco.bcos.web3j.tx.gas.StaticGasProvider;

 import org.junit.After;

 import org.junit.Before;

 import org.junit.Test;

 import org.junit.runner.RunWith;

 import org.springframework.beans.factory.annotation.Autowired;

 import org.springframework.boot.test.context.SpringBootTest;

 import org.springframework.test.context.junit4.SpringRunner;

 import java.math.BigInteger;

 @RunWith(SpringRunner.class)

 @SpringBootTest(classes = Application.class)

 public class MyAutoCreateSolToJavaTest {

     private Credentials credentials;

     private static BigInteger gasPrice = new BigInteger("300000000");

     private static BigInteger gasLimit = new BigInteger("300000000");

     @Autowired

     Web3j web3j;

     //这很重要，没有这个无法通过

     @Before

     public void setUp() throws Exception {

        /* credentials =

                 GenCredential.create(

                         "b83261efa42895c38c6c2364ca878f43e77f3cddbc922bf57d0d48070f79feb6");

         if (credentials == null) {

             throw new Exception("create Credentials failed");

         }*/

         credentials = GenCredential.create();

     }

     @After

     public void tearDown() {

     }

     @Test

     //部署合约

     public void DeploySolContract() throws Exception {

         // 部署合约

         SolToJavaTest asset = SolToJavaTest.deploy(web3j, credentials, new StaticGasProvider(gasPrice, gasLimit)).send();

         if (asset != null) {

             System.out.println("SolToJavaTest address is: " + asset.getContractAddress());

         }

     }

     @Test

     //调用合约

     public  void CallSolContract() throws Exception{

         String contractAddress = "0xc9997c3669f8667f88da5d956e7d946baac123f5";

         // 加载合约地址

         SolToJavaTest asset = SolToJavaTest.load(contractAddress, web3j, credentials, new StaticGasProvider(gasPrice, gasLimit));

         BigInteger temp = new BigInteger("100");

         if (asset != null) {

             System.out.println("aa 的原始值:"+asset.aa().send());

             System.out.println("---设置值操作----------------------------------");

             asset.set(temp).send();

             System.out.println("aa 的设置后值："+asset.get().send().toString());

         }

     }

     @Test

     //调用合约之后，在次执行本方法，查看aa是否变化,经过上次的操作，aa的值已经固定为100了

     public  void GetChangeData() throws Exception{

         String contractAddress = "0xc9997c3669f8667f88da5d956e7d946baac123f5";

         // 加载合约地址

         SolToJavaTest asset = SolToJavaTest.load(contractAddress, web3j, credentials, new StaticGasProvider(gasPrice, gasLimit));

         BigInteger temp = new BigInteger("100");

         if (asset != null) {

             System.out.println("aa 的设置后值："+asset.get().send().toString());

         }

     }

 }