搭建简易的物联网服务端和客户端-Nodejs_net（二）

const net = require('net')
const client = net.connect({port:4001},() => {//向服务端发送
    console.log("connected to server!");
    client.write("{\"tem\":\"20\",\"hum\":\"80\"}");
});
client.on('data',(data) => {//从服务端接受
    console.log(data.toString());
    client.end();
});
client.on('end',() => {//断开连接
    console.log('disconnected from server');
})

var net = require('net')

net.createServer(function(socket){
    socket.on('data',function(data){//接受服务端数据
        console.log('got:',data.toString());

        var text = JSON.parse(data.toString());//将接收到的字符串转换成json对象
        console.log(text);//获取json对象
        console.log(text.tem);//获取tem的值
        console.log(text.hum);
    });
    socket.on('end',function(data){
        console.log('end');
    });
    socket.write('Ready to receive your message!')
     
}).listen(4001);