web3js 进行转账

1、准备阶段

部署以太坊geth

安装nodejs

npm install web3

npm install

npm install ethereumjs-tx

其中， web3是1.0.0.beta-36版本

2、在部署有geth的机器上，执行node命令， 就入控制台模式，然后逐行执行下面程序：

const Web3 = require('web3')
const EthereumTx = require('ethereumjs-tx')
const web3 = new Web3( new Web3.providers.HttpProvider('http://47.254.215.233:8145') )                // 服务器RPC地址
web3.eth.defaultAccount = 'af7574a21729d22e119df7456bf913194d73c209'                                  // 发送方地址                                                               

let details = {
    "to": '0x5cf83df52a32165a7f392168ac009b168c9e8915',                                               // 接收方地址
    "value": 4052500000,                                                                              // 转账多少wei
    "gas": 51000,                                                                                     // GAS
    "gasPrice": 2 * 1000000000,                                                                      // GAS PRICE 需要一个比较合理的价格， 不然可能会报错（replacement transaction underpriced）
    "gasLimit": '0x420710',
    "nonce": 40,                                                                                     // 序号ID, 重要， 需要一个账号的交易序号，可以通过web3.eth.getTransactionCount(web3.eth.defaultAccount)获得
    "chainId": 11243575,
    "data":'0x40aabbccdd000011223344'
  }                                                                                                    // 网络ID， 这是区别于具体在哪个网络上                                     

var tx = new EthereumTx(details)
tx.sign( Buffer.from('FC1A5C66932BD7C93E05661A58FD534967739CE517D8695EBBE89135CEE78DA4', 'hex') )
var serializedTx = tx.serialize();
web3.eth.sendSignedTransaction('0x' + serializedTx.toString('hex')).on('receipt', console.log);

　　

　　

输出输出：

Promise {
<pending>,
_events: { receipt: EE { fn: [Function: bound ], context: [Circular], once: false } },
emit: [Function: emit],
on: [Function: on],
once: [Function: once],
off: [Function: removeListener],
listeners: [Function: listeners],
addListener: [Function: on],
removeListener: [Function: removeListener],
removeAllListeners: [Function: removeAllListeners] }

最终成功，输出(这里等待了很长时间)：

{ blockHash: '0x7a0f412ba0b09dfcfacb826712f4b8e5089e8d1c6d35385d2e29d5dc4400ab37',
blockNumber: 155425,
contractAddress: null,
cumulativeGasUsed: 63000,
from: '0xaf7574a21729d22e119df7456bf913194d73c209',
gasUsed: 21000,
logs: [],
logsBloom: '0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',
status: true,
to: '0x5cf83df52a32165a7f392168ac009b168c9e8915',
transactionHash: '0x6030b35f4d948a83370d0a759be98820eb72d94623e9d9063fabaab4a9543aed',
transactionIndex: 2 }