package com.ethjava;

import com.ethjava.utils.Environment;

import org.web3j.protocol.Web3j;

import org.web3j.protocol.core.methods.response.*;

import org.web3j.protocol.http.HttpService;

import java.io.IOException;

import java.math.BigInteger;

public class EthInfo {

private static Web3j web3j;

public static void main(String[] args) {

web3j = Web3j.build(new HttpService(Environment.RPC_URL));

getEthInfo();

}

/**

* 请求区块链的信息

*/

private static void getEthInfo() {

Web3ClientVersion web3ClientVersion = null;

try {

//客户端版本

web3ClientVersion = web3j.web3ClientVersion().send();

String clientVersion = web3ClientVersion.getWeb3ClientVersion();

System.out.println("clientVersion " + clientVersion);

//区块数量

EthBlockNumber ethBlockNumber = web3j.ethBlockNumber().send();

BigInteger blockNumber = ethBlockNumber.getBlockNumber();

System.out.println(blockNumber);

//挖矿奖励账户

EthCoinbase ethCoinbase = web3j.ethCoinbase().send();

String coinbaseAddress = ethCoinbase.getAddress();

System.out.println(coinbaseAddress);

//是否在同步区块

EthSyncing ethSyncing = web3j.ethSyncing().send();

boolean isSyncing = ethSyncing.isSyncing();

System.out.println(isSyncing);

//是否在挖矿

EthMining ethMining = web3j.ethMining().send();

boolean isMining = ethMining.isMining();

System.out.println(isMining);

//当前gas price

EthGasPrice ethGasPrice = web3j.ethGasPrice().send();

BigInteger gasPrice = ethGasPrice.getGasPrice();

System.out.println(gasPrice);

//挖矿速度

EthHashrate ethHashrate = web3j.ethHashrate().send();

BigInteger hashRate = ethHashrate.getHashrate();

System.out.println(hashRate);

//协议版本

EthProtocolVersion ethProtocolVersion = web3j.ethProtocolVersion().send();

String protocolVersion = ethProtocolVersion.getProtocolVersion();

System.out.println(protocolVersion);

//连接的节点数

NetPeerCount netPeerCount = web3j.netPeerCount().send();

BigInteger peerCount = netPeerCount.getQuantity();

System.out.println(peerCount);

} catch (IOException e) {

e.printStackTrace();

}

}

}