TypeScript socket.io常用API解析

TypeScript安装socket.io

npm install socket.io --save
npm install @types/socket.io --save-dev

TypeScript导入socket.io

import * as socket from socket.io;

服务端创建一个socket.Server

import * as HTTP from http;
import * as socket from socket.

let http:HTTP.Server = new HTTP.Server(app);
let io:socket.Server = socket(http);

http.listen(3000,function(){
    console.log(listen on 3000);
})

客户端创建一个socket.Socket对象连接服务端

<script src=/socket/socket.io.js></script>
<script>
    var socket = io(http://yourserver.com);
    // ...
</script>

常用API解析，客户端和服务端的程序都通用：

socket.Server.on(connecntion,func(socket))：监听来自客户端的连接事件并创建socket.Socket对象到回调函数 socket.Socket.on(< event >,func(para))：监听来自建立了socket连接的特定socket发出的事件并处理其消息 socket.Socket.emit(< event >,msg)：发出某事件的消息给socket连接的另一头 socket.io(url)：创建一个socket客户端，并连接远程服务端，返回一个socket.Socket对象 socket.Server.emit(< event >,msg)：广播消息给所有跟服务端连接的客户端 socket.Socket.broadcast.emit(< event >,msg)：某客户端与服务端的socket连接给其它所有的socket广播消息