ETH 离线签名交易 java

最新推荐文章于 2023-12-26 12:02:28 发布

「已注销」

最新推荐文章于 2023-12-26 12:02:28 发布

阅读量7.1k

点赞数

CC 4.0 BY-SA版权

分类专栏：区块链区块链文章标签：区块链以太坊离线交易

“假装、她是个有灵魂的程序员”

本文链接：https://blog.youkuaiyun.com/u011663149/article/details/85295855

对于离线交易不做过多解释~，

代码参考：https://gitee.com/DHing/signature-transaction

package com.bscoin.coldwallet.cointype.eth;

import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.HashMap;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.web3j.crypto.Credentials;
import org.web3j.crypto.ECKeyPair;
import org.web3j.crypto.Keys;
import org.web3j.crypto.RawTransaction;
import org.web3j.crypto.TransactionEncoder;
import org.web3j.utils.Convert;
import org.web3j.utils.Numeric;


public class EthWallet {
	private static Logger logger = LoggerFactory.getLogger(EthWallet.class);
	
	//private static ObjectMapper objectMapper = ObjectMapperFactory.getObjectMapper();
	
    //默认 GAS
	public final Long GAS_LIMIT = 25000L; 
	
	/**
    *生成钱包：
    *      公钥、私钥、地址
    */
	public static Map<String,String> createWallet() throws Exception{
			ECKeyPair ecKeyPair = Keys.createEcKeyPair();
			//WalletFile walletFile = Wallet.createLight(password, ecKeyPair);
			//System.out.println("address " + walletFile.getAddress());
			String privateKey = ecKeyPair.getPrivateKey().toString(16);
			
			String publicKey = ecKeyPair.getPublicKey().toString(16);
			String address = Keys.getAddress(ecKeyPair.getPublicKey());
			Map<String,String> result = new HashM