{"id":36228,"date":"2025-05-08T12:20:44","date_gmt":"2025-05-08T04:20:44","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/36228.html"},"modified":"2025-05-08T12:20:44","modified_gmt":"2025-05-08T04:20:44","slug":"%e3%80%90%e5%89%8d%e7%ab%af%e3%80%91%e3%80%90%e4%b8%9a%e5%8a%a1%e5%9c%ba%e6%99%af%e3%80%91%e3%80%90%e9%9d%a2%e8%af%95%e3%80%91%e5%9c%a8%e5%89%8d%e7%ab%af%e5%bc%80%e5%8f%91%e4%b8%ad%ef%bc%8c%e5%a6%82","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/36228.html","title":{"rendered":"\u3010\u524d\u7aef\u3011\u3010\u4e1a\u52a1\u573a\u666f\u3011\u3010\u9762\u8bd5\u3011\u5728\u524d\u7aef\u5f00\u53d1\u4e2d\uff0c\u5982\u4f55\u5b9e\u73b0\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\uff0c\u6bd4\u5982\u5b9e\u65f6\u663e\u793a\u670d\u52a1\u5668\u63a8\u9001\u7684\u6d88\u606f\uff0c\u5e76\u4e14\u4fdd\u8bc1\u5728\u4e0d\u540c\u7f51\u7edc\u73af\u5883\u4e0b\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\uff1f"},"content":{"rendered":"<h4>\u95ee\u9898&#xff1a;\u5728\u524d\u7aef\u5f00\u53d1\u4e2d&#xff0c;\u5982\u4f55\u5b9e\u73b0\u5b9e\u65f6\u6570\u636e\u66f4\u65b0&#xff0c;\u6bd4\u5982\u5b9e\u65f6\u663e\u793a\u670d\u52a1\u5668\u63a8\u9001\u7684\u6d88\u606f&#xff0c;\u5e76\u4e14\u4fdd\u8bc1\u5728\u4e0d\u540c\u7f51\u7edc\u73af\u5883\u4e0b\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd&#xff1f;<\/h4>\n<h5>\u4e00\u3001\u5b9e\u73b0\u5b9e\u65f6\u6570\u636e\u66f4\u65b0\u7684\u65b9\u6cd5<\/h5>\n<li>\n<p>WebSocket&#xff1a;<\/p>\n<ul>\n<li>\u539f\u7406&#xff1a;WebSocket \u662f\u4e00\u79cd\u5728\u5355\u4e2a TCP \u8fde\u63a5\u4e0a\u8fdb\u884c\u5168\u53cc\u5de5\u901a\u4fe1\u7684\u534f\u8bae\u3002\u5b83\u5141\u8bb8\u670d\u52a1\u5668\u4e3b\u52a8\u5411\u5ba2\u6237\u7aef\u63a8\u9001\u6570\u636e&#xff0c;\u514b\u670d\u4e86 HTTP \u534f\u8bae\u53ea\u80fd\u7531\u5ba2\u6237\u7aef\u53d1\u8d77\u8bf7\u6c42\u7684\u9650\u5236\u3002<\/li>\n<li>\u5b9e\u73b0\u793a\u4f8b&#xff1a;\u5728\u524d\u7aef&#xff0c;\u4f7f\u7528 WebSocket \u5bf9\u8c61\u6765\u5efa\u7acb\u8fde\u63a5\u3002<span class=\"token keyword\">const<\/span> socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">WebSocket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;ws:\/\/your-server-url&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nsocket<span class=\"token punctuation\">.<\/span><span class=\"token function-variable function\">onopen<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;WebSocket \u8fde\u63a5\u5df2\u5efa\u7acb&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\nsocket<span class=\"token punctuation\">.<\/span><span class=\"token function-variable function\">onmessage<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">event<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> data <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">JSON<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">parse<\/span><span class=\"token punctuation\">(<\/span>event<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5904\u7406\u63a5\u6536\u5230\u7684\u5b9e\u65f6\u6570\u636e&#xff0c;\u5982\u663e\u793a\u5728\u9875\u9762\u4e0a<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> messageElement <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span><span class=\"token function\">createElement<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;p&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    messageElement<span class=\"token punctuation\">.<\/span>textContent <span class=\"token operator\">&#061;<\/span> data<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">;<\/span><br \/>\n    document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span><span class=\"token function\">appendChild<\/span><span class=\"token punctuation\">(<\/span>messageElement<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\nsocket<span class=\"token punctuation\">.<\/span><span class=\"token function-variable function\">onclose<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;WebSocket \u8fde\u63a5\u5df2\u5173\u95ed&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\u670d\u52a1\u5668\u7aef\u5b9e\u73b0&#xff1a;\u5728 Node.js \u4e2d\u4f7f\u7528 ws \u5e93\u3002<span class=\"token keyword\">const<\/span> WebSocket <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;ws&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> wss <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">WebSocket<span class=\"token punctuation\">.<\/span>Server<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span> port<span class=\"token operator\">:<\/span> <span class=\"token number\">8080<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nwss<span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;connection&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function\">connection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">ws<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6a21\u62df\u5411\u5ba2\u6237\u7aef\u63a8\u9001\u6d88\u606f<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> interval <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setInterval<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">const<\/span> message <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span> message<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;\u8fd9\u662f\u4e00\u6761\u5b9e\u65f6\u6d88\u606f&#039;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        ws<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">JSON<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">stringify<\/span><span class=\"token punctuation\">(<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    ws<span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;close&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">clearInterval<\/span><span class=\"token punctuation\">(<\/span>interval<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<\/ul>\n<\/li>\n<li>\n<p>Server-Sent Events&#xff08;SSE&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\u539f\u7406&#xff1a;SSE \u662f\u4e00\u79cd\u5141\u8bb8 Web \u670d\u52a1\u5668\u5411 Web \u6d4f\u89c8\u5668\u53d1\u9001\u5b9e\u65f6\u66f4\u65b0\u7684 HTML5 \u6280\u672f\u3002\u5b83\u57fa\u4e8e HTTP \u534f\u8bae&#xff0c;\u662f\u5355\u5411\u7684\u670d\u52a1\u5668\u5230\u5ba2\u6237\u7aef\u7684\u901a\u4fe1&#xff0c;\u9002\u7528\u4e8e\u670d\u52a1\u5668\u4e3b\u52a8\u63a8\u9001\u6570\u636e\u7ed9\u5ba2\u6237\u7aef\u7684\u573a\u666f\u3002<\/li>\n<li>\u5b9e\u73b0\u793a\u4f8b&#xff1a;\u524d\u7aef\u901a\u8fc7 EventSource \u63a5\u6536\u670d\u52a1\u5668\u63a8\u9001\u7684\u6570\u636e\u3002<span class=\"token keyword\">const<\/span> eventSource <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">EventSource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;your-sse-endpoint&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\neventSource<span class=\"token punctuation\">.<\/span><span class=\"token function-variable function\">onmessage<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">event<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> data <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">JSON<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">parse<\/span><span class=\"token punctuation\">(<\/span>event<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5904\u7406\u63a5\u6536\u5230\u7684\u5b9e\u65f6\u6570\u636e<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> messageElement <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span><span class=\"token function\">createElement<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;p&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    messageElement<span class=\"token punctuation\">.<\/span>textContent <span class=\"token operator\">&#061;<\/span> data<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">;<\/span><br \/>\n    document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span><span class=\"token function\">appendChild<\/span><span class=\"token punctuation\">(<\/span>messageElement<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\u670d\u52a1\u5668\u7aef\u5b9e\u73b0&#xff1a;\u5728 Node.js \u4e2d\u4f7f\u7528 Express \u6846\u67b6\u3002<span class=\"token keyword\">const<\/span> express <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;express&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> app <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">express<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/your-sse-endpoint&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">req<span class=\"token punctuation\">,<\/span> res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    res<span class=\"token punctuation\">.<\/span><span class=\"token function\">set<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Content-Type&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;text\/event-stream&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    res<span class=\"token punctuation\">.<\/span><span class=\"token function\">set<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Cache-Control&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;no-cache&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    res<span class=\"token punctuation\">.<\/span><span class=\"token function\">set<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Connection&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;keep-alive&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6a21\u62df\u5411\u5ba2\u6237\u7aef\u63a8\u9001\u6d88\u606f<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> interval <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setInterval<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">const<\/span> message <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span> message<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;\u8fd9\u662f\u4e00\u6761\u5b9e\u65f6\u6d88\u606f&#039;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        res<span class=\"token punctuation\">.<\/span><span class=\"token function\">write<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">data: <\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span><span class=\"token constant\">JSON<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">stringify<\/span><span class=\"token punctuation\">(<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\">\\\\n\\\\n<\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    req<span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;close&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">clearInterval<\/span><span class=\"token punctuation\">(<\/span>interval<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        res<span class=\"token punctuation\">.<\/span><span class=\"token function\">end<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> port <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3000<\/span><span class=\"token punctuation\">;<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span>port<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">Server running on port <\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>port<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<\/ul>\n<\/li>\n<h5>\u4e8c\u3001\u4fdd\u8bc1\u4e0d\u540c\u7f51\u7edc\u73af\u5883\u4e0b\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd<\/h5>\n<li>\n<p>\u8fde\u63a5\u7ba1\u7406&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u91cd\u8fde\u673a\u5236&#xff1a;\u5bf9\u4e8e WebSocket \u548c SSE&#xff0c;\u5728\u8fde\u63a5\u65ad\u5f00\u65f6&#xff0c;\u81ea\u52a8\u91cd\u8fde\u673a\u5236\u53ef\u4ee5\u786e\u4fdd\u7a33\u5b9a\u7684\u8fde\u63a5\u3002<\/p>\n<ul>\n<li>WebSocket&#xff1a;<span class=\"token keyword\">const<\/span> socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">WebSocket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;ws:\/\/your-server-url&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">let<\/span> reconnectInterval <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">5000<\/span><span class=\"token punctuation\">;<\/span><br \/>\nsocket<span class=\"token punctuation\">.<\/span><span class=\"token function-variable function\">onclose<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;WebSocket \u8fde\u63a5\u5df2\u5173\u95ed&#xff0c;\u5c1d\u8bd5\u91cd\u8fde&#8230;&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">WebSocket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;ws:\/\/your-server-url&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> reconnectInterval<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    reconnectInterval <span class=\"token operator\">&#061;<\/span> Math<span class=\"token punctuation\">.<\/span><span class=\"token function\">min<\/span><span class=\"token punctuation\">(<\/span>reconnectInterval <span class=\"token operator\">*<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">30000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>SSE&#xff1a;<span class=\"token keyword\">function<\/span> <span class=\"token function\">createEventSource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> eventSource <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">EventSource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;your-sse-endpoint&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    eventSource<span class=\"token punctuation\">.<\/span><span class=\"token function-variable function\">onerror<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;SSE \u8fde\u63a5\u9519\u8bef&#xff0c;\u5c1d\u8bd5\u91cd\u8fde&#8230;&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">createEventSource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">5000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> eventSource<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">const<\/span> eventSource <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">createEventSource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5fc3\u8df3\u68c0\u6d4b&#xff1a;\u4e3a\u4e86\u4fdd\u6301\u8fde\u63a5\u7684\u6d3b\u8dc3\u6027\u5e76\u9632\u6b62\u4e2d\u65ad&#xff0c;\u53ef\u4ee5\u901a\u8fc7\u5b9a\u671f\u53d1\u9001\u5fc3\u8df3\u6d88\u606f\u6765\u68c0\u6d4b\u8fde\u63a5\u72b6\u6001\u3002<\/p>\n<ul>\n<li>WebSocket \u5ba2\u6237\u7aef\u5fc3\u8df3&#xff1a;<span class=\"token keyword\">const<\/span> socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">WebSocket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;ws:\/\/your-server-url&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> heartbeatInterval <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setInterval<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>socket<span class=\"token punctuation\">.<\/span>readyState <span class=\"token operator\">&#061;&#061;&#061;<\/span> WebSocket<span class=\"token punctuation\">.<\/span><span class=\"token constant\">OPEN<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;ping&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nsocket<span class=\"token punctuation\">.<\/span><span class=\"token function-variable function\">onmessage<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">event<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>event<span class=\"token punctuation\">.<\/span>data <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token string\">&#039;pong&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u63a5\u6536\u5230\u670d\u52a1\u5668\u7684 pong \u54cd\u5e94&#xff0c;\u8bf4\u660e\u8fde\u63a5\u6b63\u5e38<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>WebSocket \u670d\u52a1\u5668\u7aef\u5fc3\u8df3&#xff1a;<span class=\"token keyword\">const<\/span> WebSocket <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;ws&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> wss <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">WebSocket<span class=\"token punctuation\">.<\/span>Server<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span> port<span class=\"token operator\">:<\/span> <span class=\"token number\">8080<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nwss<span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;connection&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function\">connection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">ws<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> heartbeatInterval <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setInterval<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>ws<span class=\"token punctuation\">.<\/span>readyState <span class=\"token operator\">&#061;&#061;&#061;<\/span> WebSocket<span class=\"token punctuation\">.<\/span><span class=\"token constant\">OPEN<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            ws<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;pong&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    ws<span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;message&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function\">incoming<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">message<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>message <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token string\">&#039;ping&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            ws<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;pong&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    ws<span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;close&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">clearInterval<\/span><span class=\"token punctuation\">(<\/span>heartbeatInterval<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6570\u636e\u5904\u7406\u4e0e\u4f18\u5316&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u6570\u636e\u538b\u7f29&#xff1a;\u4e3a\u4e86\u63d0\u9ad8\u4f20\u8f93\u6548\u7387&#xff0c;\u53ef\u4ee5\u5728\u670d\u52a1\u5668\u7aef\u5bf9\u63a8\u9001\u7684\u6570\u636e\u8fdb\u884c\u538b\u7f29\u3002<\/p>\n<ul>\n<li>WebSocket \u6570\u636e\u538b\u7f29&#xff08;Node.js \u793a\u4f8b&#xff09;&#xff1a;<span class=\"token keyword\">const<\/span> WebSocket <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;ws&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> zlib <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;zlib&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> wss <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">WebSocket<span class=\"token punctuation\">.<\/span>Server<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span> port<span class=\"token operator\">:<\/span> <span class=\"token number\">8080<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nwss<span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;connection&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function\">connection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">ws<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> message <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span> message<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;\u8fd9\u662f\u4e00\u6761\u8f83\u957f\u7684\u5b9e\u65f6\u6d88\u606f&#039;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> compressedData <span class=\"token operator\">&#061;<\/span> zlib<span class=\"token punctuation\">.<\/span><span class=\"token function\">deflateSync<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">JSON<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">stringify<\/span><span class=\"token punctuation\">(<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    ws<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>compressedData<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span> binary<span class=\"token operator\">:<\/span> <span class=\"token boolean\">true<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\u5ba2\u6237\u7aef\u9700\u8981\u76f8\u5e94\u5730\u89e3\u538b\u6570\u636e&#xff1a;<span class=\"token keyword\">const<\/span> socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">WebSocket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;ws:\/\/your-server-url&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nsocket<span class=\"token punctuation\">.<\/span><span class=\"token function-variable function\">onmessage<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">event<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> decompressedData <span class=\"token operator\">&#061;<\/span> zlib<span class=\"token punctuation\">.<\/span><span class=\"token function\">inflateSync<\/span><span class=\"token punctuation\">(<\/span>event<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> data <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">JSON<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">parse<\/span><span class=\"token punctuation\">(<\/span>decompressedData<span class=\"token punctuation\">.<\/span><span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5904\u7406\u6570\u636e<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6309\u9700\u63a8\u9001&#xff1a;\u670d\u52a1\u5668\u5e94\u6839\u636e\u5ba2\u6237\u7aef\u7684\u9700\u6c42\u548c\u72b6\u6001&#xff0c;\u7cbe\u51c6\u5730\u63a8\u9001\u6570\u636e&#xff0c;\u907f\u514d\u65e0\u610f\u4e49\u7684\u6570\u636e\u8fc7\u8f7d\u3002<\/p>\n<ul>\n<li>\u5728\u5b9e\u65f6\u804a\u5929\u5e94\u7528\u4e2d&#xff0c;\u670d\u52a1\u5668\u53ea\u5411\u7279\u5b9a\u804a\u5929\u623f\u95f4\u7684\u5ba2\u6237\u7aef\u63a8\u9001\u6d88\u606f&#xff0c;\u800c\u4e0d\u662f\u5e7f\u64ad\u6240\u6709\u6d88\u606f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<h5>\u4e09\u3001\u603b\u7ed3<\/h5>\n<p>\u5b9e\u73b0\u5b9e\u65f6\u6570\u636e\u66f4\u65b0&#xff0c;\u5e76\u786e\u4fdd\u5728\u4e0d\u540c\u7f51\u7edc\u73af\u5883\u4e0b\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd&#xff0c;WebSocket \u548c SSE 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