如果你要有一个支持 WebSocket的服务器(Java、Php等),可以在浏览器中使用一个新的WebSocket服务协议,来打开一个链接: - <font color="rgb(0, 0, 136)">var</font> socket = <font color="rgb(0, 0, 136)">new</font> WebSocket(<font color="rgb(0, 153, 0)">"ws://172.0.0.1:8080/SpringWebSocketPush/websck"</font>);
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与http://这一URL 前缀等价的WebSocket 前缀 是 ws:// ,安全 WebSocket 则有一个与http://等价的 wss:// 前缀。
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$ c# v- \/ h! @; E/ \9 \该套接口对象有四个用来监听套接口事件的回调: - socket.onopen = function(){4 w: f9 E8 l$ b6 x
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- //打开8 b4 v6 w2 `7 p# N, {
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- }
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- socket.onmessage = function(){
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- //在event.data消息数据 I, m4 b) j$ v, @( [/ g8 W
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- socket.onclose = function(){
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# Z' [* K( b6 L, R) z- h- //关闭WebSocket
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- socket.onerror = function(){
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- //错误触发
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8 m7 E0 A( n% q' i: ?+ r% i通过套接口发送数据,调用socket.send: - <font color="rgb(79, 79, 79)">socket</font>.<font color="rgb(79, 79, 79)">send</font>(message)
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代码附上: - <!DOCTYPE html>' s; T/ E3 F2 _# N
- <html>* T: j" S5 B0 r) R/ Y
+ `* h. i9 u; x% F- <head>
& v, C' Y1 ~( U) [ - <meta charset="UTF-8">
& D/ T3 M' |$ a - <meta content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=no" name="viewport">) y9 \/ N3 c6 `( g% _" E
- <title>WebSocket</title>
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$ H G2 u; D9 k* l" ?0 W9 y- <body>( I, s( k9 Q, {
- </body>2 \* g0 v: {6 W4 Z$ l8 D5 u8 O
- <script>
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- if (window.WebSocket) {7 X# h4 Z# ~0 F0 M- \
- socket = new WebSocket("ws://localhost:8080/myapp");
( R- E/ M$ M' f, ] - socket.onmessage = function(event) {7 [* T6 z0 N' o1 o1 g
- alert("Received data from websocket: " + event.data);7 X7 E; C; N5 z
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- socket.onopen = function(event) {1 J! G( T" U7 Q# S* S t0 i% v- ?
- alert("Web Socket opened!");
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; A: `% I {4 x, K" |# l8 A! ~0 } - socket.onclose = function(event) {
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- };! K4 X0 v& @0 b* t- d! H6 u$ Q' O) s
- } else {
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- function send(message) {7 k* H/ t- L% n0 L2 n1 w1 ]
- if (!window.WebSocket) {
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- if (socket.readyState == WebSocket.OPEN) {
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- } else {1 K, E/ @6 x" t. } L! A9 y
- alert("The socket is not open.");
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- </script>5 W, e# o3 w1 j2 s$ y* i
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- </html>
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