{"id":20427,"date":"2025-04-19T03:17:17","date_gmt":"2025-04-18T19:17:17","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/20427.html"},"modified":"2025-04-19T03:17:17","modified_gmt":"2025-04-18T19:17:17","slug":"python-websockets-%e4%b8%8e-sse%ef%bc%88%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%8e%a8%e9%80%81%e4%ba%8b%e4%bb%b6%ef%bc%89%e7%9a%84%e5%8c%ba%e5%88%ab%e4%b8%8e%e5%ae%9e%e7%8e%b0%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/20427.html","title":{"rendered":"Python WebSockets \u4e0e SSE\uff08\u670d\u52a1\u5668\u63a8\u9001\u4e8b\u4ef6\uff09\u7684\u533a\u522b\u4e0e\u5b9e\u73b0\u65b9\u5f0f"},"content":{"rendered":"<p>&#096;&#096;&#096;html Python WebSockets \u4e0e SSE&#xff08;\u670d\u52a1\u5668\u63a8\u9001\u4e8b\u4ef6&#xff09;\u7684\u533a\u522b\u4e0e\u5b9e\u73b0\u65b9\u5f0f<\/p>\n<h2>Python WebSockets \u4e0e 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import asyncio import websockets async def echo(websocket, path): async for message in websocket: await websocket.send(f&#034;Echo: {message}&#034;) start_server &#061; websockets.serve(echo, &#034;localhost&#034;, 8765) asyncio.get_event_loop().run_until_complete(start_server) asyncio.get_event_loop().run_forever() &#096;&#096;&#096;<\/p>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d&#xff0c;\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u7b80\u5355\u7684WebSocket\u670d\u52a1\u5668&#xff0c;\u5b83\u63a5\u6536\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u6d88\u606f\u5e76\u8fd4\u56de\u76f8\u540c\u7684\u201c\u56de\u58f0\u201d\u6d88\u606f\u3002<\/p>\n<h3>\u4ec0\u4e48\u662fSSE&#xff08;\u670d\u52a1\u5668\u63a8\u9001\u4e8b\u4ef6&#xff09;&#xff1f;<\/h3>\n<p>SSE\u662fHTML5\u63d0\u4f9b\u7684\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u670d\u52a1\u5668\u5230\u5ba2\u6237\u7aef\u7684\u63a8\u9001\u6280\u672f\u3002\u5b83\u901a\u8fc7HTTP\u534f\u8bae\u5b9e\u73b0&#xff0c;\u5141\u8bb8\u670d\u52a1\u5668\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u4e8b\u4ef6\u6d41&#xff0c;\u800c\u65e0\u9700\u5ba2\u6237\u7aef\u4e3b\u52a8\u8bf7\u6c42\u3002SSE\u975e\u5e38\u9002\u5408\u90a3\u4e9b\u53ea\u9700\u8981\u4ece\u670d\u52a1\u5668\u83b7\u53d6\u66f4\u65b0\u7684\u5e94\u7528\u573a\u666f\u3002<\/p>\n<p>SSE\u7684\u4f18\u70b9\u5305\u62ec&#xff1a;<\/p>\n<ul>\n<li>\u57fa\u4e8eHTTP&#xff0c;\u4e0d\u9700\u8981\u989d\u5916\u7684\u7aef\u53e3\u3002<\/li>\n<li>\u6613\u4e8e\u5b9e\u73b0\u548c\u7ef4\u62a4\u3002<\/li>\n<li>\u9002\u7528\u4e8e\u5355\u5411\u901a\u4fe1\u573a\u666f\u3002<\/li>\n<\/ul>\n<p>\u5728Python\u4e2d&#xff0c;\u53ef\u4ee5\u4f7f\u7528Flask\u6846\u67b6\u6765\u5b9e\u73b0SSE\u670d\u52a1\u5668\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684SSE\u670d\u52a1\u5668\u793a\u4f8b&#xff1a;<\/p>\n<p>&#096;&#096;&#096;python from flask import Flask, Response app &#061; Flask(__name__) &#064;app.route(&#039;\/events&#039;) def events(): def generate(): while True: yield f&#034;data: {some_data}\\\\n\\\\n&#034; time.sleep(1) return Response(generate(), mimetype&#061;&#039;text\/event-stream&#039;) if __name__ &#061;&#061; &#039;__main__&#039;: app.run() &#096;&#096;&#096;<\/p>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d&#xff0c;\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u7b80\u5355\u7684SSE\u670d\u52a1\u5668&#xff0c;\u5b83\u6bcf\u9694\u4e00\u79d2\u949f\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u6b21\u6570\u636e\u3002<\/p>\n<h3>WebSocket vs 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