XuperChain

百度超级链使用

超级链环境部署

官方文档

• 拉取超级链软件包

  wget https://mirrors.lllcnm.cn/xuper.zip

• 网络环境配置

  make testnet

• 启动所有节点

  sh control_all.sh start

• 合约账号创建

  bin/xchain-cli account new --account 1111111111111112 --fee 1000

• 查询账号信息

  bin/xchain-cli acl query --account XC1111111111111112@xuper

• 查询账号余额

  ./bin/xchain-cli account balance XC1111111111111112@xuper -H 127.0.0.1:37101

• 更新账户余额

  bin/xchain-cli transfer --to XC1111111111111112@xuper --amount 1000 --keys data/keys/ -H 127.0.0.1:37101

• 部署solidity合约
  编译合约abi bin

  solc --bin --abi Test.sol -o .

  部署Hello合约

  pragma solidity ^0.4.25;
  
  contract Hello {
      string name;
      function set(string memory _name) public{
          name = _name;
      }
      function get() public view returns(string) {
          return name;
      }
  }

  ./bin/xchain-cli evm deploy --account XC1111111111111121@xuper --cname Hello --fee 2000 Hello.bin --abi Hello.abi

  调用合约

  ./bin/xchain-cli evm invoke --method set -a '{"name":"hhh"}' Hello --fee 1000
  ./bin/xchain-cli evm query --method get Hello

java sdk调用

@Component
public class XuperChainUtil {
    @Value("${xuperchain.client.url}")
    String xuperClientUrl;

    @Value("${xuperchain.admin.keys}")
    String keyPath;
    XuperClient client;

    @PostConstruct
    public void initField() {
        client = new XuperClient(xuperClientUrl);
        System.out.println(keyPath);
    }


    //获取区块ID、高度、交易ID
    public Dict getBlockchainStatus() {
        XchainOuterClass.BCStatus bcs = client.getBlockchainStatus("xuper");
        XchainOuterClass.SystemsStatus systemStatus = client.getSystemStatus();
        byte[] hex = Hex.encode(bcs.getBlock().getBlockid().toByteArray());
        String blockId = new String(hex);
        XchainOuterClass.InternalBlock getBlocks = bcs.getBlock();
        System.out.println(getBlocks);
        List<XchainOuterClass.Transaction> transList = getBlocks.getTransactionsList();
        String lastTransactionId = new String(Hex.encode(transList.get(transList.size() - 1).getTxid().toByteArray()));
        long height = getBlocks.getHeight();
        Dict retDict = new Dict();
        retDict.put("height", height);
        retDict.put("blockId", blockId);
        retDict.put("transactionId", lastTransactionId);
        return retDict;
    }
    /**
     * 触发合约交易(invoke)
     * */
        public Dict invokeContract(String accountName,
                               String contractName,
                               String funcName,
                               Map<String, String> args) {
        Account account = Account.create(keyPath);
        //设置合约用户
        account.setContractAccount(accountName);

        try{
            Transaction tx = client.invokeEVMContract(account, contractName, funcName, args, null);
            Map resMap = new HashMap<String, String>() {
                {
                    put("txId", tx.getTxid());
                    put("message", tx.getContractResponse().getMessage());
                    put("body", tx.getContractResponse().getBodyStr());
                }
            };
            return new Dict(resMap);
        }catch (Exception e) {
            Map resMap = new HashMap<String, String>();
            resMap.put("isError", 1);
            resMap.put("msg", e.getMessage());
            return new Dict(resMap);
        }
    }
    /**
     * 查询合约功能(query)
     * */
    public Dict queryContract(String accountName,
                              String contractName,
                              String funcName,
                              Map<String, String> args) {
        Account account = Account.create(keyPath);
        //设置合约用户
        account.setContractAccount(accountName);
        Transaction tx = client.queryEVMContract(account, contractName, funcName, args);
        Map resMap = new HashMap<String, String>() {
            {
                put("message", tx.getContractResponse().getMessage());
                put("body", tx.getContractResponse().getBodyStr());
            }
        };
        return new Dict(resMap);
    }
}

• 目录结构

• controller 类

  import cn.hutool.core.lang.Dict;
  import com.example.xuperchaintest.util.XuperChainUtil;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.beans.factory.annotation.Value;
  import org.springframework.web.bind.annotation.*;
  
  import java.io.UnsupportedEncodingException;
  import java.util.Map;
  
  @RestController
  public class TestController {
      @Value("${contract.creator}")
      String contractCreator;
      @Value("${contract.name}")
      String contractName;
      @Autowired
      XuperChainUtil xuperChainUtil;
      @RequestMapping(value = "getBlockchainStatus", method = RequestMethod.GET)
      public Dict getBlockchainStatus() throws UnsupportedEncodingException {
          return xuperChainUtil.getBlockchainStatus();
      }
  
      @PostMapping("set")
      public Dict addUser(@RequestBody Map<String,String> args) {
          return xuperChainUtil.invokeContract(contractCreator,contractName,"set",args);
      }
      @GetMapping("get")
      public Dict getUser() {
          return xuperChainUtil.queryContract(contractCreator,contractName,"get",null);
      }
  }

• 调用set接口

• 调用get接口