TRC20合约调用DEMO

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已于 2022-11-23 09:12:53 修改

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文章标签： java 开发语言

于 2022-11-22 17:35:01 首次发布

嘎嘎淘

本文链接：https://blog.youkuaiyun.com/zhang804633234/article/details/127986891

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本文介绍了一种基于TRON区块链平台的操作示例，包括如何使用TRC20合约进行转账、授权等操作，以及如何获取账户信息和创建账户。通过具体的Java代码实现了对TRON智能合约的交互。

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nle测试网调用

package main;

import org.tron.trident.core.ApiWrapper;
import org.tron.trident.core.contract.Contract;
import org.tron.trident.core.contract.Trc20Contract;
import org.tron.trident.core.exceptions.IllegalException;
import org.tron.trident.core.key.KeyPair;
import org.tron.trident.crypto.SECP256K1;
import org.tron.trident.proto.Chain;
import org.tron.trident.proto.Response;
import java.math.BigInteger;
import java.util.HashMap;
import java.util.Map;

public class main {

    public static void main(String[] args) {


    }


    public static String transferFrom(String hexPrivateKey,String apiKey,String contractAddress,String ownerAddr,String accountAddr,long amount){
        Trc20Contract token=trcTen(
                hexPrivateKey,
                apiKey,
                contractAddress,
                ownerAddr);
        BigInteger balance=allowance(hexPrivateKey,apiKey,contractAddress,ownerAddr,accountAddr);
        if(balance.compareTo(BigInteger.valueOf (amount))==-1){
            return "授权余额不足："+balance;
        }
        return token.transferFrom(ownerAddr,accountAddr,amount,6,"间接交易",100000000L);
    }

  
    public static BigInteger balance(String hexPrivateKey,String apiKey,String contractAddress,String ownerAddr){
        Trc20Contract token=trcTen(
                hexPrivateKey,
                apiKey,
                contractAddress,
                ownerAddr);
        return token.balanceOf(ownerAddr);
    }

  
    public static String transfer(String hexPrivateKey,String apiKey,String contractAddress,String ownerAddr,String accountAddr,long amount){
        Trc20Contract token=trcTen(
                hexPrivateKey,
                apiKey,
                contractAddress,
                ownerAddr);
        BigInteger balance=token.balanceOf(ownerAddr);
        if(balance.compareTo(BigInteger.valueOf (amount))==-1){
            return "账户余额不足："+balance;
        }
        return token.transfer(accountAddr,amount,6,"直接交易",100000000L);
    }

  
    public static Response.Account getTronAccountInfo(String hexPrivateKey, String apiKey,String ownerAddr){
        ApiWrapper wrapper = ApiWrapper.ofMainnet(hexPrivateKey,apiKey);
        return wrapper.getAccount(ownerAddr);
    }

  
    public static String approve(String hexPrivateKey,String apiKey,String contractAddress,String ownerAddr,String accountAddr,long amount){
        Trc20Contract token=trcTen(
                hexPrivateKey,
                apiKey,
                contractAddress,
                ownerAddr);
        return token.approve(accountAddr, amount,6,"批准交易",100000000L);
    }

  
    public static BigInteger allowance(String hexPrivateKey,String apiKey, String contractAddress, String ownerAddr, String accountAddr){
        Trc20Contract token=trcTen(
                hexPrivateKey,
                apiKey,
                contractAddress,
                ownerAddr);
        return token.allowance(ownerAddr,accountAddr);
    }
   
    public static Response.AccountResourceMessage selectAccount(String hexPrivateKey, String apiKey, String ownerAddr){
        ApiWrapper wrapper = ApiWrapper.ofMainnet(hexPrivateKey,apiKey);
        return wrapper.getAccountResource(ownerAddr);
    }

   
    public static String createAccount(String hexPrivateKey,String apiKey, String ownerAddr,String accountAddr){
        ApiWrapper wrapper = ApiWrapper.ofMainnet(hexPrivateKey,apiKey);
        Response.TransactionExtention transaction = null;
        try {
            transaction = wrapper.createAccount(ownerAddr,accountAddr);
        } catch (IllegalException e) {
            e.printStackTrace();
        }
        Chain.Transaction signedTxn = wrapper.signTransaction(transaction);
        return wrapper.broadcastTransaction(signedTxn);
    }
   
    public static Map<String,Object> createKeyPair(){
        Map<String,Object> m=new HashMap<>();
        KeyPair keyPair = KeyPair.generate();
        SECP256K1.PublicKey pubKey= keyPair.getRawPair().getPublicKey();
        m.put("publicKey",keyPair.toPublicKey());
        m.put("privateKey",keyPair.toPrivateKey());
        m.put("base58Check",KeyPair.publicKeyToBase58CheckAddress(pubKey));
        m.put("hex",KeyPair.publicKeyToHexAddress(pubKey));
        m.put("keyPair",keyPair);
        return m;
    }

   
    public static void publicSign(byte[] txid,KeyPair keyPair){
        KeyPair.signTransaction(txid,keyPair);
    }


   
    public static Trc20Contract trcTen(String hexPrivateKey,String apiKey,String contractAddress,String ownerAddr){
        ApiWrapper wrapper = ApiWrapper.ofMainnet(hexPrivateKey,apiKey);
        Contract contract =wrapper.getContract(contractAddress);
        return new Trc20Contract(contract, ownerAddr, wrapper);
    }





}

封装好的demo下载地址TRX USDT合约

测试getcoin