{"id":50298,"date":"2025-07-30T22:46:56","date_gmt":"2025-07-30T14:46:56","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/50298.html"},"modified":"2025-07-30T22:46:56","modified_gmt":"2025-07-30T14:46:56","slug":"%e5%89%8d%e7%ab%af%e5%bc%80%e5%8f%91%e4%b8%ad%e5%9f%ba%e4%ba%8e%e9%95%bf%e8%bd%ae%e8%af%a2%e4%b8%8e%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%8e%a8%e9%80%81%e7%9a%84%e5%ae%9e%e6%97%b6%e6%95%b0%e6%8d%ae%e6%9b%b4","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/50298.html","title":{"rendered":"\u524d\u7aef\u5f00\u53d1\u4e2d\u57fa\u4e8e\u957f\u8f6e\u8be2\u4e0e\u670d\u52a1\u5668\u63a8\u9001\u7684\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7b56\u7565\u4e0e\u6027\u80fd\u4f18\u5316\u5b9e\u8df5"},"content":{"rendered":"<h5>&#x1f493; \u535a\u5ba2\u4e3b\u9875&#xff1a;\u7455\u75b5\u7684CSDN\u4e3b\u9875 <\/h5>\n<h5>&#x1f4dd; Gitee\u4e3b\u9875&#xff1a;\u7455\u75b5\u7684gitee\u4e3b\u9875<\/h5>\n<h5>\u23e9 \u6587\u7ae0\u4e13\u680f&#xff1a;\u300a\u70ed\u70b9\u8d44\u8baf\u300b<\/h5>\n<h2>\u524d\u7aef\u5f00\u53d1\u4e2d\u57fa\u4e8e\u957f\u8f6e\u8be2\u4e0e\u670d\u52a1\u5668\u63a8\u9001\u7684\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7b56\u7565\u4e0e\u6027\u80fd\u4f18\u5316\u5b9e\u8df5<\/h2>\n<h4>\u76ee\u5f55<\/h4>\n<ul>\n<li>\u524d\u7aef\u5f00\u53d1\u4e2d\u57fa\u4e8e\u957f\u8f6e\u8be2\u4e0e\u670d\u52a1\u5668\u63a8\u9001\u7684\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7b56\u7565\u4e0e\u6027\u80fd\u4f18\u5316\u5b9e\u8df5 <\/li>\n<li>\n<ul>\n<li>\u4e00\u3001\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7684\u80cc\u666f\u4e0e\u6311\u6218 <\/li>\n<li>\n<ul>\n<li>1.1 \u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7684\u6838\u5fc3\u9700\u6c42 <\/li>\n<li>1.2 \u957f\u8f6e\u8be2\u4e0e\u670d\u52a1\u5668\u63a8\u9001\u7684\u5bf9\u6bd4 <\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001\u957f\u8f6e\u8be2\u7684\u5b9e\u73b0\u4e0e\u4f18\u5316\u7b56\u7565 <\/li>\n<li>\n<ul>\n<li>2.1 \u957f\u8f6e\u8be2\u7684\u57fa\u672c\u539f\u7406 <\/li>\n<li>\n<ul>\n<li>\u793a\u4f8b\u4ee3\u7801&#xff1a;\u5ba2\u6237\u7aef\u5b9e\u73b0\u957f\u8f6e\u8be2 <\/li>\n<li>\u670d\u52a1\u7aef\u5b9e\u73b0&#xff08;Node.js &#043; Express&#xff09; <\/li>\n<\/ul>\n<\/li>\n<li>2.2 \u957f\u8f6e\u8be2\u7684\u6027\u80fd\u4f18\u5316 <\/li>\n<li>\n<ul>\n<li>2.2.1 **\u5fc3\u8df3\u673a\u5236** <\/li>\n<li>2.2.2 **\u6570\u636e\u538b\u7f29** <\/li>\n<li>2.2.3 **\u8fde\u63a5\u590d\u7528** <\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09\u3001\u670d\u52a1\u5668\u63a8\u9001&#xff08;WebSocket&#xff09;\u7684\u5b9e\u73b0\u4e0e\u4f18\u5316 <\/li>\n<li>\n<ul>\n<li>3.1 WebSocket \u7684\u6838\u5fc3\u4f18\u52bf <\/li>\n<li>\n<ul>\n<li>\u793a\u4f8b\u4ee3\u7801&#xff1a;WebSocket \u5ba2\u6237\u7aef <\/li>\n<li>\u670d\u52a1\u7aef\u5b9e\u73b0&#xff08;Node.js &#043; &#096;ws&#096; \u5e93&#xff09; <\/li>\n<\/ul>\n<\/li>\n<li>3.2 WebSocket \u7684\u6027\u80fd\u4f18\u5316 <\/li>\n<li>\n<ul>\n<li>3.2.1 **\u65ad\u7ebf\u91cd\u8fde\u4e0e\u6307\u6570\u9000\u907f\u7b97\u6cd5** <\/li>\n<li>3.2.2 **\u6570\u636e\u5206\u7247\u4e0e\u6279\u91cf\u5904\u7406** <\/li>\n<li>3.2.3 **\u5b89\u5168\u6027\u589e\u5f3a** <\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u56db\u3001\u6df7\u5408\u7b56\u7565&#xff1a;\u957f\u8f6e\u8be2\u4e0e WebSocket \u7684\u7ed3\u5408 <\/li>\n<li>\n<ul>\n<li>\n<ul>\n<li>\u793a\u4f8b\u4ee3\u7801&#xff1a;\u6df7\u5408\u7b56\u7565\u5b9e\u73b0 <\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u4e94\u3001\u6027\u80fd\u4f18\u5316\u7684\u7efc\u5408\u5b9e\u8df5 <\/li>\n<li>\n<ul>\n<li>5.1 **\u524d\u7aef\u4f18\u5316\u7b56\u7565** <\/li>\n<li>5.2 **\u540e\u7aef\u4f18\u5316\u7b56\u7565** <\/li>\n<\/ul>\n<\/li>\n<li>\u516d\u3001\u5b9e\u9645\u6848\u4f8b\u5206\u6790 <\/li>\n<li>\n<ul>\n<li>6.1 **\u6848\u4f8b\u4e00&#xff1a;\u5b9e\u65f6\u804a\u5929\u5ba4** <\/li>\n<li>6.2 **\u6848\u4f8b\u4e8c&#xff1a;\u5728\u7ebf\u6587\u6863\u534f\u4f5c** <\/li>\n<\/ul>\n<\/li>\n<li>\u4e03\u3001\u603b\u7ed3 <\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e00\u3001\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7684\u80cc\u666f\u4e0e\u6311\u6218<\/h3>\n<p>\u5728\u73b0\u4ee3 Web \u5e94\u7528\u4e2d&#xff0c;\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u662f\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u7684\u5173\u952e\u9700\u6c42\u3002\u4f8b\u5982&#xff0c;\u804a\u5929\u5e94\u7528\u3001\u5728\u7ebf\u534f\u4f5c\u5de5\u5177\u3001\u5b9e\u65f6\u76d1\u63a7\u7cfb\u7edf\u7b49\u573a\u666f\u90fd\u9700\u8981\u5feb\u901f\u54cd\u5e94\u6570\u636e\u53d8\u5316\u3002\u7136\u800c&#xff0c;\u4f20\u7edf\u7684 HTTP \u8bf7\u6c42&#xff08;\u77ed\u8f6e\u8be2&#xff09;\u5b58\u5728 \u9ad8\u5ef6\u8fdf \u548c \u8d44\u6e90\u6d6a\u8d39 \u7684\u95ee\u9898&#xff0c;\u800c\u957f\u8f6e\u8be2\u548c\u670d\u52a1\u5668\u63a8\u9001&#xff08;\u5982 WebSocket&#xff09;\u5219\u63d0\u4f9b\u4e86\u66f4\u9ad8\u6548\u7684\u89e3\u51b3\u65b9\u6848\u3002 <\/p>\n<h4>1.1 \u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7684\u6838\u5fc3\u9700\u6c42<\/h4>\n<ul>\n<li>\u4f4e\u5ef6\u8fdf&#xff1a;\u6570\u636e\u53d8\u66f4\u9700\u5feb\u901f\u4f20\u9012\u5230\u5ba2\u6237\u7aef\u3002 <\/li>\n<li>\u9ad8\u5e76\u53d1\u652f\u6301&#xff1a;\u5728\u5927\u89c4\u6a21\u7528\u6237\u573a\u666f\u4e0b\u4fdd\u6301\u7a33\u5b9a\u6027\u80fd\u3002 <\/li>\n<li>\u8d44\u6e90\u4f18\u5316&#xff1a;\u51cf\u5c11\u65e0\u6548\u8bf7\u6c42\u548c\u670d\u52a1\u5668\u8d1f\u8f7d\u3002 <\/li>\n<\/ul>\n<h4>1.2 \u957f\u8f6e\u8be2\u4e0e\u670d\u52a1\u5668\u63a8\u9001\u7684\u5bf9\u6bd4<\/h4>\n<table>\n<tr>\u7279\u6027\u957f\u8f6e\u8be2 (Long Polling)\u670d\u52a1\u5668\u63a8\u9001 (WebSocket)<\/tr>\n<tbody>\n<tr>\n<td>\u901a\u4fe1\u65b9\u5f0f<\/td>\n<td>HTTP \u534f\u8bae&#xff0c;\u5355\u5411\u8bf7\u6c42-\u54cd\u5e94<\/td>\n<td>TCP \u534f\u8bae&#xff0c;\u5168\u53cc\u5de5\u901a\u4fe1<\/td>\n<\/tr>\n<tr>\n<td>\u5b9e\u65f6\u6027<\/td>\n<td>\u8f83\u9ad8&#xff08;\u4f9d\u8d56\u8d85\u65f6\u65f6\u95f4\u914d\u7f6e&#xff09;<\/td>\n<td>\u6781\u9ad8&#xff08;\u670d\u52a1\u5668\u53ef\u4e3b\u52a8\u63a8\u9001&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u8d44\u6e90\u6d88\u8017<\/td>\n<td>\u4e2d\u7b49&#xff08;\u9700\u7ef4\u62a4\u5927\u91cf HTTP \u8fde\u63a5&#xff09;<\/td>\n<td>\u4f4e&#xff08;\u5355\u6b21\u63e1\u624b\u540e\u6301\u4e45\u8fde\u63a5&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u517c\u5bb9\u6027<\/td>\n<td>\u5168\u6d4f\u89c8\u5668\u652f\u6301<\/td>\n<td>\u9700\u6d4f\u89c8\u5668\u548c\u670d\u52a1\u5668\u5747\u652f\u6301 WebSocket<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>\u4e8c\u3001\u957f\u8f6e\u8be2\u7684\u5b9e\u73b0\u4e0e\u4f18\u5316\u7b56\u7565<\/h3>\n<h4>2.1 \u957f\u8f6e\u8be2\u7684\u57fa\u672c\u539f\u7406<\/h4>\n<p>\u957f\u8f6e\u8be2\u901a\u8fc7 \u5ef6\u957f HTTP \u8bf7\u6c42\u7684\u54cd\u5e94\u65f6\u95f4 \u6765\u6a21\u62df\u5b9e\u65f6\u901a\u4fe1\u3002\u5f53\u5ba2\u6237\u7aef\u53d1\u9001\u8bf7\u6c42\u540e&#xff0c;\u670d\u52a1\u5668\u4f1a \u6302\u8d77\u8bf7\u6c42 \u76f4\u5230\u6709\u65b0\u6570\u636e\u6216\u8d85\u65f6\u3002 <\/p>\n<h5>\u793a\u4f8b\u4ee3\u7801&#xff1a;\u5ba2\u6237\u7aef\u5b9e\u73b0\u957f\u8f6e\u8be2<\/h5>\n<p>function longPolling() {<br \/>\n  fetch(&#039;\/api\/long-polling&#039;)<br \/>\n    .then(response &#061;&gt; response.json())<br \/>\n    .then(data &#061;&gt; {<br \/>\n      if (data.event) {<br \/>\n        \/\/ \u5904\u7406\u6570\u636e\u66f4\u65b0<br \/>\n        updateUI(data);<br \/>\n      }<br \/>\n      \/\/ \u91cd\u65b0\u53d1\u8d77\u8bf7\u6c42&#xff0c;\u4fdd\u6301\u8fde\u63a5<br \/>\n      longPolling();<br \/>\n    })<br \/>\n    .catch(error &#061;&gt; {<br \/>\n      console.error(&#039;\u957f\u8f6e\u8be2\u5931\u8d25&#039;, error);<br \/>\n      setTimeout(longPolling, 5000); \/\/ \u5931\u8d25\u540e\u91cd\u8bd5<br \/>\n    });<br \/>\n}<\/p>\n<p>\/\/ \u521d\u59cb\u5316\u957f\u8f6e\u8be2<br \/>\nlongPolling();<\/p>\n<h5>\u670d\u52a1\u7aef\u5b9e\u73b0&#xff08;Node.js &#043; Express&#xff09;<\/h5>\n<p>const express &#061; require(&#039;express&#039;);<br \/>\nconst app &#061; express();<br \/>\nconst clients &#061; [];<\/p>\n<p>app.get(&#039;\/api\/long-polling&#039;, (req, res) &#061;&gt; {<br \/>\n  clients.push(res);<br \/>\n  req.on(&#039;close&#039;, () &#061;&gt; {<br \/>\n    clients.splice(clients.indexOf(res), 1);<br \/>\n  });<br \/>\n});<\/p>\n<p>\/\/ \u6a21\u62df\u6570\u636e\u66f4\u65b0<br \/>\nsetInterval(() &#061;&gt; {<br \/>\n  const data &#061; { event: &#039;update&#039;, payload: &#039;New data&#039; };<br \/>\n  clients.forEach(client &#061;&gt; {<br \/>\n    client.json(data);<br \/>\n    clients.splice(clients.indexOf(client), 1);<br \/>\n  });<br \/>\n}, 5000);<\/p>\n<p>app.listen(3000, () &#061;&gt; console.log(&#039;Server running on port 3000&#039;));<\/p>\n<h4>2.2 \u957f\u8f6e\u8be2\u7684\u6027\u80fd\u4f18\u5316<\/h4>\n<h5>2.2.1 **\u5fc3\u8df3\u673a\u5236**<\/h5>\n<p>\u901a\u8fc7\u5468\u671f\u6027\u53d1\u9001\u5fc3\u8df3\u5305\u4fdd\u6301\u8fde\u63a5\u6d3b\u8dc3&#xff0c;\u907f\u514d\u56e0\u8d85\u65f6\u5bfc\u81f4\u7684\u8fde\u63a5\u4e2d\u65ad\u3002 <\/p>\n<p>\/\/ \u5ba2\u6237\u7aef\u5fc3\u8df3\u68c0\u6d4b<br \/>\nsetInterval(() &#061;&gt; {<br \/>\n  fetch(&#039;\/api\/heartbeat&#039;, { method: &#039;POST&#039; });<br \/>\n}, 30000); \/\/ \u6bcf30\u79d2\u53d1\u9001\u4e00\u6b21\u5fc3\u8df3<\/p>\n<h5>2.2.2 **\u6570\u636e\u538b\u7f29**<\/h5>\n<p>\u51cf\u5c11\u4f20\u8f93\u6570\u636e\u91cf&#xff0c;\u4f8b\u5982\u4f7f\u7528 Gzip \u6216 Brotli \u538b\u7f29\u54cd\u5e94\u5185\u5bb9\u3002 <\/p>\n<p># \u670d\u52a1\u7aef\u914d\u7f6e&#xff08;Nginx \u793a\u4f8b&#xff09;<br \/>\ngzip on;<br \/>\ngzip_types application\/json text\/plain;<\/p>\n<h5>2.2.3 **\u8fde\u63a5\u590d\u7528**<\/h5>\n<p>\u901a\u8fc7 keep-alive \u590d\u7528 TCP \u8fde\u63a5&#xff0c;\u51cf\u5c11\u63e1\u624b\u5f00\u9500\u3002 <\/p>\n<p># \u5ba2\u6237\u7aef\u8bf7\u6c42\u5934<br \/>\nConnection: keep-alive<\/p>\n<hr \/>\n<h3>\u4e09\u3001\u670d\u52a1\u5668\u63a8\u9001&#xff08;WebSocket&#xff09;\u7684\u5b9e\u73b0\u4e0e\u4f18\u5316<\/h3>\n<h4>3.1 WebSocket \u7684\u6838\u5fc3\u4f18\u52bf<\/h4>\n<ul>\n<li>\u5168\u53cc\u5de5\u901a\u4fe1&#xff1a;\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u53ef\u540c\u65f6\u53d1\u9001\u6570\u636e\u3002 <\/li>\n<li>\u4f4e\u5ef6\u8fdf&#xff1a;\u65e0\u9700\u9891\u7e41\u5efa\u7acb\u8fde\u63a5&#xff0c;\u6570\u636e\u53ef\u5373\u65f6\u4f20\u9012\u3002 <\/li>\n<li>\u8f7b\u91cf\u534f\u8bae&#xff1a;\u5934\u90e8\u4fe1\u606f\u6bd4 HTTP \u66f4\u5c0f\u3002 <\/li>\n<\/ul>\n<h5>\u793a\u4f8b\u4ee3\u7801&#xff1a;WebSocket \u5ba2\u6237\u7aef<\/h5>\n<p>const ws &#061; new WebSocket(&#039;wss:\/\/example.com\/socket&#039;);<\/p>\n<p>ws.onopen &#061; () &#061;&gt; {<br \/>\n  console.log(&#039;\u8fde\u63a5\u5df2\u5efa\u7acb&#039;);<br \/>\n};<\/p>\n<p>ws.onmessage &#061; (event) &#061;&gt; {<br \/>\n  const data &#061; JSON.parse(event.data);<br \/>\n  updateUI(data); \/\/ \u66f4\u65b0\u9875\u9762\u6570\u636e<br \/>\n};<\/p>\n<p>ws.onclose &#061; () &#061;&gt; {<br \/>\n  console.log(&#039;\u8fde\u63a5\u5173\u95ed&#xff0c;\u5c1d\u8bd5\u91cd\u8fde&#8230;&#039;);<br \/>\n  setTimeout(() &#061;&gt; {<br \/>\n    ws &#061; new WebSocket(&#039;wss:\/\/example.com\/socket&#039;);<br \/>\n  }, 5000);<br \/>\n};<\/p>\n<h5>\u670d\u52a1\u7aef\u5b9e\u73b0&#xff08;Node.js &#043; &#096;ws&#096; \u5e93&#xff09;<\/h5>\n<p>const WebSocket &#061; require(&#039;ws&#039;);<br \/>\nconst wss &#061; new WebSocket.Server({ port: 8080 });<\/p>\n<p>wss.on(&#039;connection&#039;, (ws) &#061;&gt; {<br \/>\n  console.log(&#039;\u5ba2\u6237\u7aef\u5df2\u8fde\u63a5&#039;);<\/p>\n<p>  ws.on(&#039;message&#039;, (message) &#061;&gt; {<br \/>\n    console.log(&#039;\u6536\u5230\u6d88\u606f:&#039;, message.toString());<br \/>\n  });<\/p>\n<p>  \/\/ \u6a21\u62df\u6570\u636e\u63a8\u9001<br \/>\n  setInterval(() &#061;&gt; {<br \/>\n    ws.send(JSON.stringify({ event: &#039;update&#039;, payload: &#039;Real-time data&#039; }));<br \/>\n  }, 3000);<br \/>\n});<\/p>\n<h4>3.2 WebSocket \u7684\u6027\u80fd\u4f18\u5316<\/h4>\n<h5>3.2.1 **\u65ad\u7ebf\u91cd\u8fde\u4e0e\u6307\u6570\u9000\u907f\u7b97\u6cd5**<\/h5>\n<p>let retryCount &#061; 0;<br \/>\nconst connect &#061; () &#061;&gt; {<br \/>\n  const ws &#061; new WebSocket(&#039;wss:\/\/example.com\/socket&#039;);<br \/>\n  ws.onclose &#061; () &#061;&gt; {<br \/>\n    retryCount&#043;&#043;;<br \/>\n    setTimeout(() &#061;&gt; {<br \/>\n      connect(); \/\/ \u91cd\u8bd5\u8fde\u63a5<br \/>\n    }, Math.min(1000 * 2 ** retryCount, 30000)); \/\/ \u6307\u6570\u9000\u907f<br \/>\n  };<br \/>\n};<br \/>\nconnect();<\/p>\n<h5>3.2.2 **\u6570\u636e\u5206\u7247\u4e0e\u6279\u91cf\u5904\u7406**<\/h5>\n<p>\u51cf\u5c11\u5c0f\u6570\u636e\u5305\u7684\u53d1\u9001\u9891\u7387&#xff0c;\u5408\u5e76\u591a\u4e2a\u4e8b\u4ef6\u4e3a\u4e00\u6b21\u63a8\u9001\u3002 <\/p>\n<p>\/\/ \u670d\u52a1\u7aef\u793a\u4f8b&#xff08;\u5408\u5e76\u591a\u4e2a\u4e8b\u4ef6&#xff09;<br \/>\nconst queue &#061; [];<br \/>\nsetInterval(() &#061;&gt; {<br \/>\n  if (queue.length &gt; 0) {<br \/>\n    ws.send(JSON.stringify({ events: queue }));<br \/>\n    queue.length &#061; 0;<br \/>\n  }<br \/>\n}, 1000);<\/p>\n<h5>3.2.3 **\u5b89\u5168\u6027\u589e\u5f3a**<\/h5>\n<ul>\n<li>\u4f7f\u7528 wss&#xff08;WebSocket Secure&#xff09;\u52a0\u5bc6\u901a\u4fe1\u3002 <\/li>\n<li>\u5728\u63e1\u624b\u9636\u6bb5\u9a8c\u8bc1 Token \u6216 Session\u3002 <\/li>\n<\/ul>\n<hr \/>\n<h3>\u56db\u3001\u6df7\u5408\u7b56\u7565&#xff1a;\u957f\u8f6e\u8be2\u4e0e WebSocket \u7684\u7ed3\u5408<\/h3>\n<p>\u5728\u67d0\u4e9b\u573a\u666f\u4e0b&#xff0c;\u957f\u8f6e\u8be2\u4e0e WebSocket \u53ef\u4ee5\u7ed3\u5408\u4f7f\u7528&#xff0c;\u4ee5\u5e73\u8861\u517c\u5bb9\u6027\u4e0e\u6027\u80fd\u3002\u4f8b\u5982&#xff1a; <\/p>\n<li>\u4f18\u5148\u5c1d\u8bd5 WebSocket&#xff1a;\u5982\u679c\u8fde\u63a5\u5931\u8d25&#xff0c;\u5219\u964d\u7ea7\u4e3a\u957f\u8f6e\u8be2\u3002 <\/li>\n<li>\u6309\u9700\u5207\u6362&#xff1a;\u6839\u636e\u7f51\u7edc\u72b6\u51b5\u52a8\u6001\u9009\u62e9\u901a\u4fe1\u65b9\u5f0f\u3002 <\/li>\n<h5>\u793a\u4f8b\u4ee3\u7801&#xff1a;\u6df7\u5408\u7b56\u7565\u5b9e\u73b0<\/h5>\n<p>let isWebSocketSupported &#061; &#039;WebSocket&#039; in window;<\/p>\n<p>if (isWebSocketSupported) {<br \/>\n  const ws &#061; new WebSocket(&#039;wss:\/\/example.com\/socket&#039;);<br \/>\n  ws.onmessage &#061; (event) &#061;&gt; updateUI(event.data);<br \/>\n} else {<br \/>\n  longPolling(); \/\/ \u56de\u9000\u5230\u957f\u8f6e\u8be2<br \/>\n}<\/p>\n<hr \/>\n<h3>\u4e94\u3001\u6027\u80fd\u4f18\u5316\u7684\u7efc\u5408\u5b9e\u8df5<\/h3>\n<h4>5.1 **\u524d\u7aef\u4f18\u5316\u7b56\u7565**<\/h4>\n<ul>\n<li>\u6570\u636e\u7f13\u5b58&#xff1a;\u5bf9\u9759\u6001\u6570\u636e\u4f7f\u7528 localStorage \u6216 sessionStorage \u7f13\u5b58\u3002 <\/li>\n<li>UI \u6e32\u67d3\u4f18\u5316&#xff1a;\u4f7f\u7528\u865a\u62df\u6eda\u52a8\u6216\u589e\u91cf\u66f4\u65b0\u51cf\u5c11 DOM \u64cd\u4f5c\u3002 <\/li>\n<li>\u61d2\u52a0\u8f7d&#xff1a;\u6309\u9700\u52a0\u8f7d\u5b9e\u65f6\u6570\u636e&#xff0c;\u907f\u514d\u4e00\u6b21\u6027\u6e32\u67d3\u8fc7\u591a\u5185\u5bb9\u3002 <\/li>\n<\/ul>\n<h4>5.2 **\u540e\u7aef\u4f18\u5316\u7b56\u7565**<\/h4>\n<ul>\n<li>\u5f02\u6b65\u5904\u7406&#xff1a;\u4f7f\u7528\u6d88\u606f\u961f\u5217&#xff08;\u5982 RabbitMQ&#xff09;\u89e3\u8026\u6570\u636e\u751f\u4ea7\u4e0e\u6d88\u8d39\u3002 <\/li>\n<li>\u8d1f\u8f7d\u5747\u8861&#xff1a;\u901a\u8fc7 Nginx \u6216 HAProxy \u5206\u53d1\u8bf7\u6c42\u3002 <\/li>\n<li>\u6570\u636e\u5e93\u4f18\u5316&#xff1a;\u4f7f\u7528 Redis \u7f13\u5b58\u70ed\u70b9\u6570\u636e&#xff0c;\u51cf\u5c11\u6570\u636e\u5e93\u67e5\u8be2\u538b\u529b\u3002 <\/li>\n<\/ul>\n<hr \/>\n<h3>\u516d\u3001\u5b9e\u9645\u6848\u4f8b\u5206\u6790<\/h3>\n<h4>6.1 **\u6848\u4f8b\u4e00&#xff1a;\u5b9e\u65f6\u804a\u5929\u5ba4**<\/h4>\n<ul>\n<li>\u6280\u672f\u9009\u578b&#xff1a;WebSocket &#043; Redis\u3002 <\/li>\n<li>\u4f18\u5316\u70b9&#xff1a;\n<ul>\n<li>\u4f7f\u7528 Redis \u7684 Pub\/Sub \u673a\u5236\u5b9e\u73b0\u6d88\u606f\u5e7f\u64ad\u3002 <\/li>\n<li>\u5bf9\u7528\u6237\u79bb\u7ebf\u6d88\u606f\u8fdb\u884c\u6301\u4e45\u5316\u5b58\u50a8\u3002 <\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>6.2 **\u6848\u4f8b\u4e8c&#xff1a;\u5728\u7ebf\u6587\u6863\u534f\u4f5c**<\/h4>\n<ul>\n<li>\u6280\u672f\u9009\u578b&#xff1a;\u957f\u8f6e\u8be2 &#043; Operational Transformation&#xff08;OT&#xff09;\u7b97\u6cd5\u3002 <\/li>\n<li>\u4f18\u5316\u70b9&#xff1a;\n<ul>\n<li>\u901a\u8fc7 OT \u7b97\u6cd5\u89e3\u51b3\u5e76\u53d1\u7f16\u8f91\u51b2\u7a81\u3002 <\/li>\n<li>\u5bf9\u6587\u6863\u7248\u672c\u8fdb\u884c\u589e\u91cf\u66f4\u65b0&#xff0c;\u51cf\u5c11\u4f20\u8f93\u6570\u636e\u91cf\u3002 <\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e03\u3001\u603b\u7ed3<\/h3>\n<p>\u5728\u524d\u7aef\u5f00\u53d1\u4e2d&#xff0c;\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7684\u5b9e\u73b0\u9700\u8981\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u6280\u672f\u65b9\u6848&#xff1a; <\/p>\n<ul>\n<li>\u957f\u8f6e\u8be2 \u9002\u5408\u517c\u5bb9\u6027\u8981\u6c42\u9ad8\u3001\u5b9e\u65f6\u6027\u8981\u6c42\u4e2d\u7b49\u7684\u573a\u666f\u3002 <\/li>\n<li>WebSocket \u66f4\u9002\u5408\u5bf9\u5ef6\u8fdf\u654f\u611f\u3001\u9700\u8981\u53cc\u5411\u901a\u4fe1\u7684\u573a\u666f\u3002 <\/li>\n<li>\u6df7\u5408\u7b56\u7565 \u53ef\u4ee5\u517c\u987e\u517c\u5bb9\u6027\u4e0e\u6027\u80fd&#xff0c;\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002 <\/li>\n<\/ul>\n<p>\u901a\u8fc7 \u5fc3\u8df3\u673a\u5236\u3001\u6570\u636e\u538b\u7f29\u3001\u65ad\u7ebf\u91cd\u8fde \u7b49\u4f18\u5316\u624b\u6bb5&#xff0c;\u53ef\u4ee5\u663e\u8457\u63d0\u5347\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u4e0e\u6027\u80fd\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d&#xff0c;\u8fd8\u9700\u7ed3\u5408\u524d\u540e\u7aef\u534f\u4f5c&#xff0c;\u4ece\u67b6\u6784\u8bbe\u8ba1\u5230\u4ee3\u7801\u5b9e\u73b0\u8fdb\u884c\u5168\u65b9\u4f4d\u4f18\u5316\u3002 <\/p>\n<hr \/>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250730144653-688a305d26a2f.png\" alt=\"\u957f\u8f6e\u8be2\u4e0e WebSocket \u5bf9\u6bd4\u56fe\" \/> \u56fe 1&#xff1a;\u957f\u8f6e\u8be2\u4e0e WebSocket \u7684\u901a\u4fe1\u6d41\u7a0b\u5bf9\u6bd4 <\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250730144654-688a305e3e7ae.png\" alt=\"\u6027\u80fd\u4f18\u5316\u793a\u610f\u56fe\" \/> \u56fe 2&#xff1a;\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7684\u6027\u80fd\u4f18\u5316\u5173\u952e\u70b9<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1k\u6b21\uff0c\u70b9\u8d5e7\u6b21\uff0c\u6536\u85cf8\u6b21\u3002\u5728\u524d\u7aef\u5f00\u53d1\u4e2d\uff0c\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7684\u5b9e\u73b0\u9700\u8981\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u6280\u672f\u65b9\u6848\uff1a\u957f\u8f6e\u8be2\u9002\u5408\u517c\u5bb9\u6027\u8981\u6c42\u9ad8\u3001\u5b9e\u65f6\u6027\u8981\u6c42\u4e2d\u7b49\u7684\u573a\u666f\u3002WebSocket\u66f4\u9002\u5408\u5bf9\u5ef6\u8fdf\u654f\u611f\u3001\u9700\u8981\u53cc\u5411\u901a\u4fe1\u7684\u573a\u666f\u3002\u6df7\u5408\u7b56\u7565\u53ef\u4ee5\u517c\u987e\u517c\u5bb9\u6027\u4e0e\u6027\u80fd\uff0c\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002\u901a\u8fc7\u5fc3\u8df3\u673a\u5236\u6570\u636e\u538b\u7f29\u65ad\u7ebf\u91cd\u8fde\u7b49\u4f18\u5316\u624b\u6bb5\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u5347\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u4e0e\u6027\u80fd\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u8fd8\u9700\u7ed3\u5408\u524d\u540e\u7aef\u534f\u4f5c\uff0c\u4ece\u67b6\u6784\u8bbe\u8ba1\u5230\u4ee3\u7801\u5b9e\u73b0\u8fdb\u884c\u5168\u65b9\u4f4d\u4f18\u5316\u3002\u56fe 1\uff1a\u957f\u8f6e\u8be2\u4e0e WebSocket \u7684\u901a\u4fe1\u6d41\u7a0b\u5bf9\u6bd4\u56fe 2\uff1a\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7684\u6027\u80fd\u4f18\u5316\u5173\u952e\u70b9\u3002<\/p>\n","protected":false},"author":2,"featured_media":50296,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[56,43,4901,44],"topic":[],"class_list":["post-50298","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-56","tag-43","tag-4901","tag-44"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u524d\u7aef\u5f00\u53d1\u4e2d\u57fa\u4e8e\u957f\u8f6e\u8be2\u4e0e\u670d\u52a1\u5668\u63a8\u9001\u7684\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7b56\u7565\u4e0e\u6027\u80fd\u4f18\u5316\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/50298.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u524d\u7aef\u5f00\u53d1\u4e2d\u57fa\u4e8e\u957f\u8f6e\u8be2\u4e0e\u670d\u52a1\u5668\u63a8\u9001\u7684\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7b56\u7565\u4e0e\u6027\u80fd\u4f18\u5316\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1k\u6b21\uff0c\u70b9\u8d5e7\u6b21\uff0c\u6536\u85cf8\u6b21\u3002\u5728\u524d\u7aef\u5f00\u53d1\u4e2d\uff0c\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7684\u5b9e\u73b0\u9700\u8981\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u6280\u672f\u65b9\u6848\uff1a\u957f\u8f6e\u8be2\u9002\u5408\u517c\u5bb9\u6027\u8981\u6c42\u9ad8\u3001\u5b9e\u65f6\u6027\u8981\u6c42\u4e2d\u7b49\u7684\u573a\u666f\u3002WebSocket\u66f4\u9002\u5408\u5bf9\u5ef6\u8fdf\u654f\u611f\u3001\u9700\u8981\u53cc\u5411\u901a\u4fe1\u7684\u573a\u666f\u3002\u6df7\u5408\u7b56\u7565\u53ef\u4ee5\u517c\u987e\u517c\u5bb9\u6027\u4e0e\u6027\u80fd\uff0c\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002\u901a\u8fc7\u5fc3\u8df3\u673a\u5236\u6570\u636e\u538b\u7f29\u65ad\u7ebf\u91cd\u8fde\u7b49\u4f18\u5316\u624b\u6bb5\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u5347\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u4e0e\u6027\u80fd\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u8fd8\u9700\u7ed3\u5408\u524d\u540e\u7aef\u534f\u4f5c\uff0c\u4ece\u67b6\u6784\u8bbe\u8ba1\u5230\u4ee3\u7801\u5b9e\u73b0\u8fdb\u884c\u5168\u65b9\u4f4d\u4f18\u5316\u3002\u56fe 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