1 不安全的TCP通信
普通的TCP通信數(shù)據(jù)是明文傳輸?shù)?，所以存在?shù)據(jù)泄露和被篡改的風險，我們可以寫一段測試代碼試驗一下。
TCP Server：
const net=require('net');const server=net.createServer();const serverHost='127.0.0.1';const serverPort=8888;server.on('connection',(clientSocket)=>{
clientSocket.setEncoding('utf8');
clientSocket.on('data',(data)=>{
console.log(`client say:${data}`);
});
clientSocket.on('error',()=>{});});server.listen({host:serverHost,port:serverPort},()=>{
console.log(`server is listening on port ${8888}`)});TCP Client：
const net=require('net');const socket=new net.Socket();const serverHost='127.0.0.1';const serverPort=8888;let index=0;socket.on('error',()=>{});socket.connect({host:serverHost,port:serverPort},()=>{
console.log(`client has connected to host ${serverHost} , port ${serverPort}`);
setInterval(()=>{
socket.write(`i love u ${index++}`);
},3000);});