創(chuàng)建的tcp服務(wù)器,tcpserver：var net = require('net')var mysql = require('mysql');var conn = mysql.createConnection({    host:'localhost',    user:'root',    password:'',    database:'gprs',    port:3306});conn.connect();net.createServer(function(socket){    socket.on('data',function(data){        console.log('got:',data.toString());        var text = JSON.parse(data.toString());        var arr = {};        arr.tem = text.tem;        arr.hum = text.hum;        arr.illsum = text.illsum;        console.log(arr);        console.log(arr.tem);        console.log(arr.hum);        console.log(arr.illsum);        //將溫濕度數(shù)據(jù)存入mysql        conn.query('INSERT INTO gprsdata SET ?', arr, function(error,result,fields){            if (error) throw error;        });    });    socket.on(        'end',function(data){        console.log('end');    });    socket.write('Ready to receive your message!')}).listen(4001);創(chuàng)建的tcpclient.js:const net = require('net');const client = net.connect({port:4001},()=> {    console.log("connected to server!");client.write("{\"tem\":\"20\",\"hum\":\"30\",\"illsum\":\"473\"}");});client.on('data',(data) => {    console.log(data.toString());client.end();});client.on('end',() => {    console.log('disconnected from server');});