引入net模块
net 模块提供了异步的网络 API,用于创建基于流的 TCP 或 IPC 服务器 (net.createServer()) 和客户端 (net.createConnection())。
1 let net = require ('net' );
服务端 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 let net = require ('net' );let server = net.createServer(socket => { socket.on('data' , data => { console .log('server recv data:' , data); }) socket.on('close' , function (hadError ) { console .log(`sock close hadError: "${hadError} "` ); }) socket.on('end' , function ( ) { console .log('sock end' ); }) socket.on('error' , function (err ) { console .log('sock err:' , err); }) server.maxConnections = 100 ; server.getConnections((err, count ) => { console .log('server count:' , count); }) }); server.listen(10033 , () => { console .log("server is running on 10033" ); }) server.on('error' , function (err ) { console .log("server err:" , err); }) server.on('close' , () => { console .log("server closed" ) })
客户端 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 let net = require ('net' );let client = net.Socket();const host = '127.0.0.1' ;client.connect(10033 , host, () => { console .log('connect the server' ); client.write('send first data' ); }); client.on('data' , data => { console .log('client data:' , data); }) client.on('end' , () => { console .log('client end' ); }) client.on('error' , (err ) => { console .log(`client error: ${err} ` ); });