web3j -从已签署的交易中获取交易详细信息(金额、天然气价格、天然气限制)

import org.web3j.protocol.Web3j;
import org.web3j.protocol.core.methods.response.EthTransaction;
import org.web3j.protocol.http.HttpService;
import org.web3j.utils.Convert;

import java.math.BigDecimal;
import java.math.BigInteger;

public class TransactionDetailsExample {
    public static void main(String[] args) {
        // 连接到以太坊节点
        Web3j web3j = Web3j.build(new HttpService("https://mainnet.infura.io/v3/your-infura-project-id"));

        // 交易哈希
        String transactionHash = "0x123456789abcdef";

        try {
            // 获取交易对象
            EthTransaction ethTransaction = web3j.ethGetTransactionByHash(transactionHash).send();

            // 获取交易的详细信息
            BigInteger amountWei = ethTransaction.getTransaction().getValue();
            BigDecimal amountEther = Convert.fromWei(amountWei.toString(), Convert.Unit.ETHER);
            BigInteger gasPrice = ethTransaction.getTransaction().getGasPrice();
            BigInteger gasLimit = ethTransaction.getTransaction().getGas();

            // 打印交易详细信息
            System.out.println("交易金额: " + amountEther + " ETH");
            System.out.println("天然气价格: " + gasPrice);
            System.out.println("天然气限制: " + gasLimit);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}