nodejs服务器端，如何消息的类型为test就返回消息，反之则群发：
const WebSocket = require('ws');
const wss = new WebSocket.Server({port:3030})
const connection = {}
wss.on('connection',ws => {
ws.on('message',message => {
console.log(JSON.stringify(connection))
message = JSON.parse(message)
if(message.type === 'test') {
connection[message.id] = ws
console.log(connection)
console.log('received: %s',JSON.stringify(message))
if(!!connection[message.id])
connection[message.id].send(JSON.stringify(message))
}else {
ws.clients.forEach(function each(client) {
client.send(message);
});
}
});
})
nodejs之客户端：
const WebSocket = require('ws');
const ws = new WebSocket('ws://127.0.0.1:3030');
ws.on('open',() =>{
let msg = {type:'test',id:1}
ws.send(JSON.stringify(msg));
})
ws.on('error', err => {
console.log(err)
})
ws.on('message',data => {
console.log(data)
})
ws.on('close',(code,reason) => {
console.log(code);
console.log(reason+'=========='+typeof reason)
})html页面客户端：
<!DOCTYPE html>
<html>
<head>
<title>skynet websocket example</title>
</head>
<body>
<script>
var ws = new WebSocket("ws://127.0.0.1:3030");
ws.onopen = function(){
alert("open");
ws.send("WebSocket hellowrold!!");
};
ws.onmessage = function(ev){
alert(ev.data);
};
ws.onclose = function(ev){
alert("close");
};
ws.onerror = function(ev){
console.log(ev);
alert("error");
};
</script>
</body>
<html>