{"id":24346,"date":"2025-04-19T09:56:22","date_gmt":"2025-04-19T01:56:22","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/24346.html"},"modified":"2025-04-19T09:56:22","modified_gmt":"2025-04-19T01:56:22","slug":"sse-server-sent-events-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%9e%e6%97%b6%e6%8e%a8%e9%80%81%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/24346.html","title":{"rendered":"SSE (Server-Sent Events) \u670d\u52a1\u5668\u5b9e\u65f6\u63a8\u9001\u8be6\u89e3"},"content":{"rendered":"<\/p>\n<h4>Server-Sent Events<\/h4>\n<ul>\n<li>\n<ul>\n<li>\u4e00\u3001\u4ec0\u4e48\u662f SSE ?<\/li>\n<li>\u4e8c\u3001SSE \u7684\u5de5\u4f5c\u539f\u7406<\/li>\n<li>\u4e09\u3001SSE \u7684\u57fa\u672c\u914d\u7f6e<\/li>\n<li>\n<ul>\n<li>1.HTTP \u8bf7\u6c42\u548c\u54cd\u5e94\u5934\u8bbe\u7f6e<\/li>\n<li>2.SSE \u5b57\u6bb5\u4ecb\u7ecd<\/li>\n<li>3.SSE \u4e8b\u4ef6\u6570\u636e\u6d41\u793a\u4f8b<\/li>\n<\/ul>\n<\/li>\n<li>\u56db\u3001SseEmitter \u7684\u57fa\u672c\u914d\u7f6e<\/li>\n<li>\n<ul>\n<li>1.SseEmitter \u4ecb\u7ecd\u53ca\u7528\u6cd5<\/li>\n<li>2.\u4f7f\u7528 SseEmitter \u793a\u4f8b1<\/li>\n<li>\n<ul>\n<li>1)\u7f16\u5199\u6838\u5fc3 SSE Client<\/li>\n<li>2)\u7f16\u5199 Controller<\/li>\n<li>3)\u524d\u7aef\u63a5\u6536\u4e0e\u5904\u7406<\/li>\n<\/ul>\n<\/li>\n<li>3.\u4f7f\u7528 SseEmitter \u793a\u4f8b2<\/li>\n<li>\n<ul>\n<li>1)\u540e\u7aef\u5b9e\u73b0SSE<\/li>\n<li>2)\u524d\u7aef\u63a5\u5165SSE<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u4e94\u3001\u6ce8\u610f\u4e8b\u9879<\/li>\n<li>\n<ul>\n<li>1.\u65ad\u5f00\u8fde\u63a5\u65f6<\/li>\n<li>2.nginx\u914d\u7f6e<\/li>\n<li>3.\u5e7f\u64ad\u63a8\u9001<\/li>\n<li>3.\u5b89\u5168\u95ee\u9898<\/li>\n<li>\n<ul>\n<li>1)\u9632\u6b62 XSS \u653b\u51fb<\/li>\n<li>2)\u9a8c\u8bc1\u8fde\u63a5\u8bf7\u6c42<\/li>\n<li>3)\u9650\u5236\u8fde\u63a5\u6570\u91cf<\/li>\n<li>4)\u9650\u5236\u8fde\u63a5\u6570\u91cf<\/li>\n<li>5)\u76d1\u63a7\u548c\u65e5\u5fd7\u8bb0\u5f55<\/li>\n<li>6)\u5b9e\u65bd\u8bbf\u95ee\u63a7\u5236<\/li>\n<\/ul>\n<\/li>\n<li>4.\u670d\u52a1\u7aef\u8d44\u6e90\u6d88\u8017<\/li>\n<li>\n<ul>\n<li>1)\u8fde\u63a5\u5f00\u9500<\/li>\n<li>2)\u5e76\u53d1\u8fde\u63a5<\/li>\n<li>3)\u72b6\u6001\u7ba1\u7406<\/li>\n<li>4)\u5185\u5b58\u6cc4\u6f0f\u9632\u62a4<\/li>\n<li>5)\u65e5\u5fd7\u548c\u76d1\u63a7<\/li>\n<li>6)\u4f18\u5316\u7b56\u7565<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u4e00\u3001\u4ec0\u4e48\u662f SSE ?<\/h3>\n<p>Server-sent Events&#xff08;SSE&#xff09;\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u670d\u52a1\u5668\u4e3b\u52a8\u5411\u5ba2\u6237\u7aef\u5355\u5411\u63a8\u9001\u5b9e\u65f6\u6570\u636e\u7684\u6280\u672f\u3002<\/p>\n<p>\u4e0e WebSocket \u4e0d\u540c\u7684\u662f&#xff0c;\u670d\u52a1\u5668\u53d1\u9001\u4e8b\u4ef6\u662f\u5355\u5411\u7684\u3002\u6570\u636e\u6d88\u606f\u53ea\u80fd\u4ece\u670d\u52a1\u7aef\u5230\u53d1\u9001\u5230\u5ba2\u6237\u7aef&#xff08;\u5982\u7528\u6237\u7684\u6d4f\u89c8\u5668&#xff09;\u3002\u8fd9\u4f7f\u5176\u6210\u4e3a\u4e0d\u9700\u8981\u4ece\u5ba2\u6237\u7aef\u5f80\u670d\u52a1\u5668\u53d1\u9001\u6d88\u606f\u7684\u60c5\u51b5\u4e0b\u7684\u6700\u4f73\u9009\u62e9\u3002\u4e8c\u8005\u7684\u4e3b\u8981\u533a\u522b&#xff1a;<\/p>\n<table>\n<tr>SSEWebSocket<\/tr>\n<tbody>\n<tr>\n<td align=\"center\">\u901a\u4fe1<\/td>\n<td align=\"center\">\u5355\u5411\u901a\u4fe1<\/td>\n<td align=\"center\">\u53cc\u5411\u901a\u4fe1<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">\u534f\u8bae<\/td>\n<td align=\"center\">HTTP<\/td>\n<td align=\"center\">WebSocket<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">\u81ea\u52a8\u91cd\u8fde<\/td>\n<td align=\"center\">\u652f\u6301<\/td>\n<td align=\"center\">\u4e0d\u652f\u6301&#xff0c;\u9700\u8981\u5ba2\u6237\u7aef\u81ea\u884c\u652f\u6301<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">\u6570\u636e\u683c\u5f0f<\/td>\n<td align=\"center\">\u6587\u672c\u683c\u5f0f&#xff0c;\u5982\u679c\u9700\u8981\u4e8c\u8fdb\u5236\u6570\u636e&#xff0c;\u9700\u8981\u81ea\u884c\u7f16\u7801<\/td>\n<td align=\"center\">\u9ed8\u8ba4\u4e8c\u8fdb\u5236\u6570\u636e&#xff0c;\u652f\u6301\u6587\u672c\u683c\u5f0f<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">\u6d4f\u89c8\u5668\u652f\u6301<\/td>\n<td align=\"center\">\u5927\u90e8\u5206\u652f\u6301&#xff0c;\u65e9\u671f Edge \u6d4f\u89c8\u5668\u3001IE\u6d4f\u89c8\u5668\u4e0d\u652f\u6301<\/td>\n<td align=\"center\">\u4e3b\u6d41\u6d4f\u89c8\u5668&#xff08;\u5305\u62ec\u79fb\u52a8\u7aef&#xff09;\u7684\u652f\u6301\u8f83\u597d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>SSE \u5e38\u89c1\u63a8\u9001\u573a\u666f\u6709&#xff1a;\u5fae\u4fe1\u6d88\u606f\u901a\u77e5\u680f\u3001\u65b0\u95fb\u63a8\u9001\u3001\u5916\u5356\u72b6\u6001 \u7b49\u7b49&#xff0c;\u6211\u4eec\u81ea\u8eab\u7684\u63a8\u9001\u573a\u666f\u6709&#xff1a;\u4e0b\u8f7d\u3001\u8fde\u7ebf\u8bf7\u6c42\u3001\u76f4\u64ad\u63d0\u9192 \u2026<\/p>\n<h3>\u4e8c\u3001SSE \u7684\u5de5\u4f5c\u539f\u7406<\/h3>\n<p>sse \u7684\u5de5\u4f5c\u539f\u7406\u57fa\u4e8e\u6807\u51c6\u7684 HTTP \u534f\u8bae&#xff0c;\u5ba2\u6237\u7aef\u901a\u8fc7\u53d1\u9001\u4e00\u4e2a\u7279\u6b8a\u7684 HTTP GET \u8bf7\u6c42\u5230\u670d\u52a1\u5668&#xff0c;\u8bf7\u6c42\u4e2d\u5305\u542b Accept: text\/event-stream \u5934&#xff0c;\u8868\u660e\u5ba2\u6237\u7aef\u671f\u671b\u63a5\u6536 SSE \u6570\u636e\u6d41\u3002 \u670d\u52a1\u5668\u54cd\u5e94\u540e\u4fdd\u6301\u8fde\u63a5\u6253\u5f00&#xff0c;\u5e76\u53ef\u4ee5\u6301\u7eed\u5411\u5ba2\u6237\u7aef\u63a8\u9001\u6570\u636e\u3002\u6570\u636e\u6d41\u7531\u4e00\u7cfb\u5217\u4e8b\u4ef6\u7ec4\u6210&#xff0c;\u6bcf\u4e2a\u4e8b\u4ef6\u90fd\u5305\u542b\u4e8b\u4ef6\u7c7b\u578b\u3001\u6570\u636e\u5185\u5bb9\u548c\u4e8b\u4ef6 ID \u7b49\u4fe1\u606f&#xff0c;\u5ba2\u6237\u7aef\u53ef\u4ee5\u4f7f\u7528 JavaScript \u4e2d\u7684 EventSource \u63a5\u53e3\u6765\u76d1\u542c\u670d\u52a1\u5668\u53d1\u9001\u7684\u4e8b\u4ef6&#xff0c;\u5e76\u8fdb\u884c\u76f8\u5e94\u7684\u5904\u7406\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419015621-680302c547e07.png\" alt=\"![\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0](https:\/\/i-blog.csdnimg.cn\/direct\/0f0962439c6649e78fbeaa39649e2b7c.png\" \/><\/p>\n<h3>\u4e09\u3001SSE \u7684\u57fa\u672c\u914d\u7f6e<\/h3>\n<h4>1.HTTP \u8bf7\u6c42\u548c\u54cd\u5e94\u5934\u8bbe\u7f6e<\/h4>\n<p>\u5728 sse \u4e2d&#xff0c;\u5ba2\u6237\u7aef\u9996\u5148\u5411\u670d\u52a1\u5668\u53d1\u9001\u4e00\u4e2a HTTP GET \u8bf7\u6c42&#xff0c;\u8868\u660e\u5ba2\u6237\u7aef\u51c6\u5907\u63a5\u6536 SSE \u6570\u636e\u6d41&#xff0c;\u5728\u670d\u52a1\u5668\u54cd\u5e94\u7684\u65f6\u5019&#xff0c;\u9700\u8981\u8bbe\u7f6e\u7279\u5b9a\u7684\u54cd\u5e94\u5934\u6765\u544a\u77e5\u5ba2\u6237\u7aef\u8fd9\u662f\u4e00\u4e2a SSE \u6d41&#xff1a;<\/p>\n<ul>\n<li>Content-Type : text\/event-stream&#xff1a;\u544a\u8bc9\u6d4f\u89c8\u5668\u8fd9\u4e2a\u54cd\u5e94\u662fSSE\u6d41&#xff0c;\u6d4f\u89c8\u5668\u5e94\u8be5\u4ee5\u8fd9\u79cd\u65b9\u5f0f\u5904\u7406\u63a5\u6536\u5230\u7684\u6570\u636e\u3002<\/li>\n<li>Character-Encoding : UTF-8&#xff1a;\u8bbe\u7f6e\u7f16\u7801\u683c\u5f0f\u3002<\/li>\n<li>Cache-Control : no-cache&#xff1a;\u6307\u793a\u6d4f\u89c8\u5668\u4e0d\u5e94\u8be5\u7f13\u5b58\u6b64\u54cd\u5e94\u3002\u5bf9\u4e8eSSE\u6765\u8bf4&#xff0c;\u8fd9\u662f\u5f88\u91cd\u8981\u7684&#xff0c;\u56e0\u4e3a\u6211\u4eec\u5e0c\u671b\u5b9e\u65f6\u66f4\u65b0\u6570\u636e&#xff0c;\u800c\u4e0d\u5e0c\u671b\u6d4f\u89c8\u5668\u7f13\u5b58\u65e7\u7684\u6570\u636e\u3002<\/li>\n<li>Connection : keep-alive&#xff1a;\u4fdd\u6301\u8fde\u63a5\u6253\u5f00&#xff0c;\u4ee5\u4fbf\u670d\u52a1\u5668\u53ef\u4ee5\u6301\u7eed\u53d1\u9001\u6570\u636e\u3002<\/li>\n<\/ul>\n<h4>2.SSE \u5b57\u6bb5\u4ecb\u7ecd<\/h4>\n<p>SSE \u6570\u636e\u6d41\u7531\u4e00\u7cfb\u5217\u7684\u5b57\u6bb5\u7ec4\u6210&#xff0c;\u6bcf\u4e2a\u5b57\u6bb5\u90fd\u4ee5\u952e\u503c\u5bf9\u7684\u5f62\u5f0f\u51fa\u73b0&#xff0c;\u5b57\u6bb5\u4e4b\u95f4\u7528\u6362\u884c\u7b26\u5206\u9694&#xff1a;<\/p>\n<ul>\n<li>event: &lt;event_name&gt;&#xff1a;\u53ef\u9009\u5b57\u6bb5&#xff0c;\u7528\u4e8e\u6307\u5b9a\u4e8b\u4ef6\u7684\u540d\u79f0&#xff0c;message\u662f\u9ed8\u8ba4\u7684\u4e8b\u4ef6\u540d\u79f0\u3002<\/li>\n<li>data&#xff1a;\u5fc5\u987b\u5b57\u6bb5&#xff0c;\u5305\u542b\u4e8b\u4ef6\u7684\u6570\u636e\u5185\u5bb9&#xff0c;\u53ef\u4ee5\u6709\u591a\u884c&#xff0c;\u6bcf\u884c\u90fd\u4ee5data:\u5f00\u5934\u3002<\/li>\n<li>id&#xff1a;\u53ef\u9009\u5b57\u6bb5&#xff0c;\u63d0\u4f9b\u4e00\u4e2a\u552f\u4e00\u7684\u6807\u8bc6\u7b26\u7ed9\u4e8b\u4ef6&#xff0c;\u53ef\u7528\u4e8e\u65ad\u7ebf\u91cd\u8fde\u548c\u6d88\u606f\u8ffd\u8e2a\u3002<\/li>\n<li>retry&#xff1a;\u53ef\u9009\u5b57\u6bb5&#xff0c;\u6307\u5b9a\u5ba2\u6237\u7aef\u5728\u8fde\u63a5\u65ad\u5f00\u540e\u91cd\u8fde\u7684\u95f4\u9694\u65f6\u95f4\u3002<\/li>\n<\/ul>\n<h4>3.SSE \u4e8b\u4ef6\u6570\u636e\u6d41\u793a\u4f8b<\/h4>\n<p><span class=\"token comment\">\/\/SSE\u6d4b\u8bd5<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;GetMapping<\/span><span class=\"token punctuation\">(<\/span>value <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;ssePush&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">ssePush<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setContentType<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;text\/event-stream&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setCharacterEncoding<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;UTF-8&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Cache-Control&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;no-cache&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Connection&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;keep-alive&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u6570\u636e\u683c\u5f0f:<\/span><br \/>\n            <span class=\"token comment\">\/\/ id\u5b57\u6bb5\u662f\u53ef\u9009\u7684&#xff0c;\u7528\u4e8e\u6307\u5b9a\u4e8b\u4ef6\u7684\u6807\u8bc6\u7b26&#xff1b;<\/span><br \/>\n            <span class=\"token comment\">\/\/ event\u5b57\u6bb5\u662f\u53ef\u9009\u7684&#xff0c;\u7528\u4e8e\u6307\u5b9a\u4e8b\u4ef6\u7684\u540d\u79f0&#xff1b;<\/span><br \/>\n            <span class=\"token comment\">\/\/ data\u5b57\u6bb5\u662f\u5fc5\u987b\u7684&#xff0c;\u7528\u4e8e\u6307\u5b9a\u6570\u636e\u7684\u5185\u5bb9&#xff1b;<\/span><br \/>\n            <span class=\"token comment\">\/\/ retry\u5b57\u6bb5\u662f\u53ef\u9009\u7684&#xff0c;\u7528\u4e8e\u6307\u5b9a\u5ba2\u6237\u7aef\u5728\u8fde\u63a5\u65ad\u5f00\u540e\u91cd\u65b0\u8fde\u63a5\u7684\u65f6\u95f4\u95f4\u9694&#xff08;\u4ee5\u6beb\u79d2\u4e3a\u5355\u4f4d&#xff09;\u3002<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u6bcf\u4e2a\u5b57\u6bb5\u90fd\u5fc5\u987b\u4ee5\u6362\u884c\u7b26&#xff08;\\\\n&#xff09;\u7ed3\u5c3e&#xff0c;\u5e76\u4e14\u6bcf\u4e2a\u6d88\u606f\u90fd\u5fc5\u987b\u4ee5\u4e24\u4e2a\u6362\u884c\u7b26&#xff08;\\\\n\\\\n&#xff09;\u7ed3\u5c3e\u3002<\/span><br \/>\n            <span class=\"token class-name\">String<\/span> message <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Hello, world&#034;<\/span> <span class=\"token operator\">&#043;<\/span> i<span class=\"token punctuation\">;<\/span><br \/>\n            response<span class=\"token punctuation\">.<\/span><span class=\"token function\">getWriter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">write<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;id:&#034;<\/span><span class=\"token operator\">&#043;<\/span>i<span class=\"token operator\">&#043;<\/span><span class=\"token string\">&#034;\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            response<span class=\"token punctuation\">.<\/span><span class=\"token function\">getWriter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">write<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;event:me\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            response<span class=\"token punctuation\">.<\/span><span class=\"token function\">getWriter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">write<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;data:&#034;<\/span> <span class=\"token operator\">&#043;<\/span> i <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;\\\\n\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            response<span class=\"token punctuation\">.<\/span><span class=\"token function\">getWriter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">flush<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token class-name\">TimeUnit<\/span><span class=\"token punctuation\">.<\/span>SECONDS<span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InterruptedException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/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><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419015621-680302c56cacb.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>\u56db\u3001SseEmitter \u7684\u57fa\u672c\u914d\u7f6e<\/h3>\n<p>SseEmitter\u662f Spring Framework \u63d0\u4f9b\u7684\u4e00\u4e2a\u7c7b&#xff0c;\u7528\u4e8e\u5b9e\u73b0 SSE&#xff08;Server-Sent Events&#xff09;\u3002\u662f\u4e00\u79cd\u57fa\u4e8e Servlet API \u7684\u673a\u5236&#xff0c;\u901a\u8fc7 HTTP \u54cd\u5e94\u6d41&#xff08;ResponseBody&#xff09;\u6765\u6301\u7eed\u53d1\u9001\u6d88\u606f\u3002<\/p>\n<h4>1.SseEmitter \u4ecb\u7ecd\u53ca\u7528\u6cd5<\/h4>\n<ul>\n<li>\u6784\u9020\u65b9\u6cd5\n<ul>\n<li>SseEmitter()&#xff1a;\u521b\u5efa\u4e00\u4e2a\u65b0\u7684 SseEmitter \u5b9e\u4f8b&#xff0c;\u4f7f\u7528\u9ed8\u8ba4\u7684\u8d85\u65f6\u503c\u3002<\/li>\n<li>SseEmitter(Long timeout)&#xff1a;\u521b\u5efa\u4e00\u4e2a\u65b0\u7684 SseEmitter \u5b9e\u4f8b&#xff0c;\u8bbe\u7f6e\u6307\u5b9a\u7684\u8d85\u65f6\u65f6\u95f4&#xff08;\u6beb\u79d2&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u53d1\u9001\u6570\u636e\n<ul>\n<li>send(Object data)&#xff1a;\u53d1\u9001\u6570\u636e\u5230\u5ba2\u6237\u7aef\u3002<\/li>\n<li>send(Object data, MediaType mediaType)&#xff1a;\u53d1\u9001\u6570\u636e\u5230\u5ba2\u6237\u7aef&#xff0c;\u5e76\u6307\u5b9a\u6570\u636e\u7684\u5a92\u4f53\u7c7b\u578b\u3002<\/li>\n<li>send(SseEvent event)&#xff1a;\u53d1\u9001\u4e00\u4e2a SseEvent \u5bf9\u8c61\u5230\u5ba2\u6237\u7aef\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5173\u95ed\u8fde\u63a5\n<ul>\n<li>complete()&#xff1a;\u6b63\u5e38\u5b8c\u6210\u4e8b\u4ef6\u6d41&#xff0c;\u5173\u95ed\u8fde\u63a5\u3002<\/li>\n<li>completeWithError(Throwable throwable)&#xff1a;\u7531\u4e8e\u9519\u8bef\u5b8c\u6210\u4e8b\u4ef6\u6d41&#xff0c;\u5e76\u5173\u95ed\u8fde\u63a5\u3002<\/li>\n<li>completeWithError(String message)&#xff1a;\u7531\u4e8e\u9519\u8bef\u5b8c\u6210\u4e8b\u4ef6\u6d41&#xff0c;\u5e76\u5173\u95ed\u8fde\u63a5&#xff0c;\u63d0\u4f9b\u9519\u8bef\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u8fde\u63a5\u72b6\u6001\u5904\u7406\n<ul>\n<li>onCompletion(Runnable callback)&#xff1a;\u6ce8\u518c\u8fde\u63a5\u5b8c\u6210\u7684\u56de\u8c03\u51fd\u6570\u3002<\/li>\n<li>onTimeout(Runnable callback)&#xff1a;\u6ce8\u518c\u8fde\u63a5\u8d85\u65f6\u7684\u56de\u8c03\u51fd\u6570\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u83b7\u53d6\u8d85\u65f6\u65f6\u95f4\n<ul>\n<li>getTimeout()&#xff1a;\u8fd4\u56de\u5f53\u524d\u7684\u8d85\u65f6\u65f6\u95f4&#xff08;\u6beb\u79d2&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5176\u4ed6\n<ul>\n<li>isCompleted()&#xff1a;\u68c0\u67e5 SseEmitter \u662f\u5426\u5df2\u5b8c\u6210\u3002<\/li>\n<li>isExpired()&#xff1a;\u68c0\u67e5 SseEmitter \u662f\u5426\u5df2\u8fc7\u671f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>2.\u4f7f\u7528 SseEmitter \u793a\u4f8b1<\/h4>\n<h5>1)\u7f16\u5199\u6838\u5fc3 SSE Client<\/h5>\n<li>\n<p>\u521b\u5efa SSE \u7aef\u70b9<\/p>\n<p>\u521b\u5efa\u4e00\u4e2a SseEmitter&#xff0c;\u7528 uid \u8fdb\u884c\u6807\u8bc6&#xff0c;uid \u53ef\u4ee5\u662f\u7528\u6237\u6807\u8bc6\u7b26&#xff0c;\u4e5f\u53ef\u4ee5\u662f\u4e1a\u52a1\u6807\u8bc6\u7b26\u3002\u53ef\u4ee5\u7406\u89e3\u4e3a\u901a\u4fe1\u4fe1\u9053\u6807\u8bc6\u3002<\/p>\n<\/li>\n<li>\n<p>\u901a\u8fc7\u7aef\u70b9\u53d1\u9001\u4e8b\u4ef6<\/p>\n<p>\u53ef\u4ee5\u5b9a\u65f6\u6216\u5728\u65f6\u95f4\u53d1\u751f\u662f\u8c03\u7528 SseEmitter.send() \u65b9\u6cd5\u6765\u53d1\u9001\u4e8b\u4ef6\u3002<\/p>\n<\/li>\n<li>\n<p>\u5173\u95ed\u7aef\u70b9\u8fde\u63a5<\/p>\n<\/li>\n<p><span class=\"token annotation punctuation\">&#064;Slf4j<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">SseClient<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Map<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">SseEmitter<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> sseEmitterMap <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ConcurrentHashMap<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/**<br \/>\n     * \u521b\u5efa\u8fde\u63a5<br \/>\n     *\/<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">SseEmitter<\/span> <span class=\"token function\">createSse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> uid<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/\u9ed8\u8ba430\u79d2\u8d85\u65f6,\u8bbe\u7f6e\u4e3a0L\u5219\u6c38\u4e0d\u8d85\u65f6<\/span><br \/>\n        <span class=\"token class-name\">SseEmitter<\/span> sseEmitter <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">SseEmitter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0l<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/\u5b8c\u6210\u540e\u56de\u8c03<\/span><br \/>\n        sseEmitter<span class=\"token punctuation\">.<\/span><span class=\"token function\">onCompletion<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;[{}]\u7ed3\u675f\u8fde\u63a5&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.&#034;<\/span><span class=\"token punctuation\">,<\/span> uid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            sseEmitterMap<span class=\"token punctuation\">.<\/span><span class=\"token function\">remove<\/span><span class=\"token punctuation\">(<\/span>uid<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 comment\">\/\/\u8d85\u65f6\u56de\u8c03<\/span><br \/>\n        sseEmitter<span class=\"token punctuation\">.<\/span><span class=\"token function\">onTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;[{}]\u8fde\u63a5\u8d85\u65f6&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.&#034;<\/span><span class=\"token punctuation\">,<\/span> uid<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 comment\">\/\/\u5f02\u5e38\u56de\u8c03<\/span><br \/>\n        sseEmitter<span class=\"token punctuation\">.<\/span><span class=\"token function\">onError<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                throwable <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;[{}]\u8fde\u63a5\u5f02\u5e38,{}&#034;<\/span><span class=\"token punctuation\">,<\/span> uid<span class=\"token punctuation\">,<\/span> throwable<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                        sseEmitter<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">SseEmitter<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">event<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                                <span class=\"token punctuation\">.<\/span><span class=\"token function\">id<\/span><span class=\"token punctuation\">(<\/span>uid<span class=\"token punctuation\">)<\/span><br \/>\n                                <span class=\"token punctuation\">.<\/span><span class=\"token function\">name<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u53d1\u751f\u5f02\u5e38&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                                <span class=\"token punctuation\">.<\/span><span class=\"token function\">data<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u53d1\u751f\u5f02\u5e38\u8bf7\u91cd\u8bd5&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                                <span class=\"token punctuation\">.<\/span><span class=\"token function\">reconnectTime<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        sseEmitterMap<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span>uid<span class=\"token punctuation\">,<\/span> sseEmitter<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">IOException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                        e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/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><br \/>\n        <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            sseEmitter<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">SseEmitter<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">event<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">reconnectTime<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">5000<\/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 keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">IOException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        sseEmitterMap<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span>uid<span class=\"token punctuation\">,<\/span> sseEmitter<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;[{}]\u521b\u5efasse\u8fde\u63a5\u6210\u529f&#xff01;&#034;<\/span><span class=\"token punctuation\">,<\/span> uid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> sseEmitter<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/**<br \/>\n     * \u7ed9\u6307\u5b9a\u7528\u6237\u53d1\u9001\u6d88\u606f<br \/>\n     *<br \/>\n     *\/<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">boolean<\/span> <span class=\"token function\">sendMessage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> uid<span class=\"token punctuation\">,<\/span><span class=\"token class-name\">String<\/span> messageId<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span> message<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">StrUtil<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">isBlank<\/span><span class=\"token punctuation\">(<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u53c2\u6570\u5f02\u5e38&#xff0c;msg\u4e3anull&#034;<\/span><span class=\"token punctuation\">,<\/span> uid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token class-name\">SseEmitter<\/span> sseEmitter <span class=\"token operator\">&#061;<\/span> sseEmitterMap<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>uid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>sseEmitter <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6d88\u606f\u63a8\u9001\u5931\u8d25uid:[{}],\u6ca1\u6709\u521b\u5efa\u8fde\u63a5&#xff0c;\u8bf7\u91cd\u8bd5\u3002&#034;<\/span><span class=\"token punctuation\">,<\/span> uid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            sseEmitter<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">SseEmitter<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">event<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">id<\/span><span class=\"token punctuation\">(<\/span>messageId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">reconnectTime<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token operator\">*<\/span><span class=\"token number\">60<\/span><span class=\"token operator\">*<\/span><span class=\"token number\">1000L<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">data<\/span><span class=\"token punctuation\">(<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7528\u6237{},\u6d88\u606fid:{},\u63a8\u9001\u6210\u529f:{}&#034;<\/span><span class=\"token punctuation\">,<\/span> uid<span class=\"token punctuation\">,<\/span>messageId<span class=\"token punctuation\">,<\/span> message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            sseEmitterMap<span class=\"token punctuation\">.<\/span><span class=\"token function\">remove<\/span><span class=\"token punctuation\">(<\/span>uid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7528\u6237{},\u6d88\u606fid:{},\u63a8\u9001\u5f02\u5e38:{}&#034;<\/span><span class=\"token punctuation\">,<\/span> uid<span class=\"token punctuation\">,<\/span>messageId<span class=\"token punctuation\">,<\/span> e<span class=\"token punctuation\">.<\/span><span class=\"token function\">getMessage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            sseEmitter<span class=\"token punctuation\">.<\/span><span class=\"token function\">complete<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/**<br \/>\n     * \u65ad\u5f00<br \/>\n     * &#064;param uid<br \/>\n     *\/<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">closeSse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> uid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>sseEmitterMap<span class=\"token punctuation\">.<\/span><span class=\"token function\">containsKey<\/span><span class=\"token punctuation\">(<\/span>uid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">SseEmitter<\/span> sseEmitter <span class=\"token operator\">&#061;<\/span> sseEmitterMap<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>uid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            sseEmitter<span class=\"token punctuation\">.<\/span><span class=\"token function\">complete<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            sseEmitterMap<span class=\"token punctuation\">.<\/span><span class=\"token function\">remove<\/span><span class=\"token punctuation\">(<\/span>uid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">info<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7528\u6237{} \u8fde\u63a5\u5df2\u5173\u95ed&#034;<\/span><span class=\"token punctuation\">,<\/span>uid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<h5>2)\u7f16\u5199 Controller<\/h5>\n<li>\u6253\u5f00\u9875\u9762\u9ed8\u8ba4\u9875\u9762&#xff0c;\u4f20\u9012\u7aef\u70b9\u6807\u8bc6<\/li>\n<li>\u8fde\u63a5\u7aef\u70b9&#xff08;\/createSse&#xff09;&#xff0c;\u9875\u9762\u9700\u8981\u4f7f\u7528<\/li>\n<li>\u901a\u8fc7 ajax&#xff08;\/sendMsg&#xff09;&#xff0c;\u89e6\u53d1\u540e\u7aef\u4e1a\u52a1&#xff0c;\u5411\u9875\u9762\u53d1\u9001\u6d88\u606f<\/li>\n<li>\u4e3b\u52a8\u5173\u95ed\u8fde\u63a5&#xff08;\/closeSse&#xff09;<\/li>\n<p><span class=\"token annotation punctuation\">&#064;Controller<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">IndexAction<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">SseClient<\/span> sseClient<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;GetMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">index<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">ModelMap<\/span> model<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">String<\/span> uid <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">IdUtil<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">fastUUID<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        model<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;uid&#034;<\/span><span class=\"token punctuation\">,<\/span>uid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;index&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;CrossOrigin<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;GetMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/createSse&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">SseEmitter<\/span> <span class=\"token function\">createConnect<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> uid<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> sseClient<span class=\"token punctuation\">.<\/span><span class=\"token function\">createSse<\/span><span class=\"token punctuation\">(<\/span>uid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;CrossOrigin<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;GetMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/sendMsg&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;ResponseBody<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">sseChat<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> uid<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            sseClient<span class=\"token punctuation\">.<\/span><span class=\"token function\">sendMessage<\/span><span class=\"token punctuation\">(<\/span>uid<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;no&#034;<\/span><span class=\"token operator\">&#043;<\/span>i<span class=\"token punctuation\">,<\/span><span class=\"token class-name\">IdUtil<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">fastUUID<\/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 punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;ok&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/**<br \/>\n     * \u5173\u95ed\u8fde\u63a5<br \/>\n     *\/<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;CrossOrigin<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;GetMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/closeSse&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">closeConnect<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> uid <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><\/p>\n<p>        sseClient<span class=\"token punctuation\">.<\/span><span class=\"token function\">closeSse<\/span><span class=\"token punctuation\">(<\/span>uid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h5>3)\u524d\u7aef\u63a5\u6536\u4e0e\u5904\u7406<\/h5>\n<p>\u524d\u7aef\u6bcf\u63a5\u6536\u5230\u4e00\u6b21SSE\u63a8\u9001\u7684\u4e8b\u4ef6&#xff0c;\u5c31\u4f1a\u5728id\u4e3a&#034;con&#034;\u7684\u5143\u7d20\u4e2d\u8ffd\u52a0\u6570\u636e\u3002<\/p>\n<p><span class=\"token doctype\"><span class=\"token punctuation\">&lt;!<\/span><span class=\"token doctype-tag\">DOCTYPE<\/span> <span class=\"token name\">html<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>html<\/span> <span class=\"token attr-name\">lang<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>en<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>head<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">charset<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>UTF-8<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>title<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>Title<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>title<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>head<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>body<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>div<\/span> <span class=\"token attr-name\">id<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>con<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>div<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>script<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token script\"><span class=\"token language-javascript\"><br \/>\n    <span class=\"token keyword\">let<\/span> chat <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span><span class=\"token function\">getElementById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;con&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>window<span class=\"token punctuation\">.<\/span>EventSource<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/\u521b\u5efasse<\/span><br \/>\n         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 template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">\/createSse?uid&#061;<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>uid<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        eventSource<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 parameter\">event<\/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\u94fe\u63a5\u6210\u529f&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        eventSource<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 punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n                chat<span class=\"token punctuation\">.<\/span>innerHTML <span class=\"token operator\">&#043;&#061;<\/span> event<span class=\"token punctuation\">.<\/span>data <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#039;&lt;br\/&gt;&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token comment\">\/\/console.log(&#039;\u540e\u7aef\u8fd4\u56de\u7684\u6570\u636e:&#039;, data.value);<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <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 punctuation\">(<\/span><span class=\"token parameter\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/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\u94fe\u63a5\u5931\u8d25&#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 \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">alert<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4f60\u7684\u6d4f\u89c8\u5668\u4e0d\u652f\u6301SSE&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>script<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>body<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>html<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<h4>3.\u4f7f\u7528 SseEmitter \u793a\u4f8b2<\/h4>\n<h5>1)\u540e\u7aef\u5b9e\u73b0SSE<\/h5>\n<p><span class=\"token annotation punctuation\">&#064;RestController<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">SseController<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;GetMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/stream&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">SseEmitter<\/span> <span class=\"token function\">handleSse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletResponse<\/span> response<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setContentType<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;text\/event-stream&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setCharacterEncoding<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;UTF-8&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Cache-Control&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;no-cache&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Connection&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;keep-alive&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\">SseEmitter<\/span> emitter <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">SseEmitter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Long<\/span><span class=\"token punctuation\">.<\/span>MAX_VALUE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ \u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7ebf\u7a0b<\/span><br \/>\n            <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token class-name\">String<\/span> message <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Hello, world&#034;<\/span> <span class=\"token operator\">&#043;<\/span> i<span class=\"token punctuation\">;<\/span><br \/>\n                    emitter<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">SseEmitter<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">event<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                    <span class=\"token punctuation\">.<\/span><span class=\"token function\">id<\/span><span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                            <span class=\"token punctuation\">.<\/span><span class=\"token function\">name<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;message&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                            <span class=\"token punctuation\">.<\/span><span class=\"token function\">data<\/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 class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6bcf\u79d2\u53d1\u9001\u4e00\u6761\u6d88\u606f<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n                emitter<span class=\"token punctuation\">.<\/span><span class=\"token function\">complete<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u53d1\u9001\u5b8c\u6bd5\u540e\u5173\u95ed\u8fde\u63a5<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">IOException<\/span> <span class=\"token operator\">|<\/span> <span class=\"token class-name\">InterruptedException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                emitter<span class=\"token punctuation\">.<\/span><span class=\"token function\">completeWithError<\/span><span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9519\u8bef\u5b8c\u6210\u4e8b\u4ef6\u6d41&#xff0c;\u5e76\u5173\u95ed\u8fde\u63a5<\/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><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> emitter<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h5>2)\u524d\u7aef\u63a5\u5165SSE<\/h5>\n<p><span class=\"token doctype\"><span class=\"token punctuation\">&lt;!<\/span><span class=\"token doctype-tag\">DOCTYPE<\/span> <span class=\"token name\">html<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>html<\/span> <span class=\"token attr-name\">lang<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>en<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>head<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">charset<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>UTF-8<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>title<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>SSE Client<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>title<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>head<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>body<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>h1<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>Server-Sent Events Client<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>h1<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>pre<\/span> <span class=\"token attr-name\">id<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>output<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>pre<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>button<\/span> <span class=\"token attr-name\">id<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>closeButton<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span>Close Connection<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>button<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>script<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token script\"><span class=\"token language-javascript\"><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;&lt;http:\/\/localhost:3000\/stream&gt;&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">const<\/span> output <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span><span class=\"token function\">getElementById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;output&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">const<\/span> closeButton <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span><span class=\"token function\">getElementById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;closeButton&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        eventSource<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            output<span class=\"token punctuation\">.<\/span>textContent <span class=\"token operator\">&#043;&#061;<\/span> event<span class=\"token punctuation\">.<\/span>data <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#039;\\\\\\\\n&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        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 parameter\">event<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;EventSource failed: &#039;<\/span><span class=\"token punctuation\">,<\/span> event<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            eventSource<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u53ef\u4ee5\u9009\u62e9\u5728\u53d1\u751f\u9519\u8bef\u65f6\u5173\u95ed\u8fde\u63a5<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        eventSource<span class=\"token punctuation\">.<\/span><span class=\"token function\">addEventListener<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;end&#039;<\/span><span class=\"token punctuation\">,<\/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            console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Server closed the connection: &#039;<\/span><span class=\"token punctuation\">,<\/span> event<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            eventSource<span class=\"token punctuation\">.<\/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 punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        closeButton<span class=\"token punctuation\">.<\/span><span class=\"token function\">addEventListener<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;click&#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            eventSource<span class=\"token punctuation\">.<\/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 punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>script<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>body<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>html<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<h3>\u4e94\u3001\u6ce8\u610f\u4e8b\u9879<\/h3>\n<h4>1.\u65ad\u5f00\u8fde\u63a5\u65f6<\/h4>\n<p>\u5f53\u5ba2\u6237\u7aef\u65ad\u5f00\u8fde\u63a5\u65f6&#xff0c;SseEmitter \u4f1a\u629b\u51fa IOException&#xff0c;\u6240\u4ee5\u52a1\u5fc5\u6355\u83b7\u5e76\u5904\u7406\u8fd9\u79cd\u5f02\u5e38&#xff0c;\u901a\u5e38\u60c5\u51b5\u4e0b\u6211\u4eec\u4f1a\u8c03\u7528 emitter.complete() \u6216 emitter.completeWithError() \u6765\u5173\u95ed SseEmitter\u3002<\/p>\n<h4>2.nginx\u914d\u7f6e<\/h4>\n<p>\u8fd9\u91cc\u8bb0\u5f55\u4e00\u4e2a\u8e29\u5751\u60c5\u51b5&#xff1a;\u5728\u6211\u6ca1\u6709\u914d\u7f6e nginx \u65f6&#xff0c;\u8c03\u7528 SSE \u63a5\u53e3&#xff0c;\u901a\u8fc7IP&#043;\u7aef\u53e3\u8bbf\u95ee\u4e0e\u76f4\u63a5\u901a\u8fc7\u57df\u540d\u8bbf\u95ee\u662f\u4e0d\u4e00\u6837\u7684\u3002\u7531\u4e8e\u6ca1\u6709\u914d\u7f6e nginx&#xff0c;\u57df\u540d\u8bbf\u95ee\u7684\u63a5\u53e3\u4f1a\u7b49\u5f85\u6240\u6709\u6d88\u606f\u53d1\u9001\u540e&#xff0c;\u5168\u90e8\u4e00\u8d77\u5728\u9875\u9762\u5c55\u793a\u3002\u800cIP&#043;\u7aef\u53e3\u5219\u4f1a\u4e00\u6761\u6761\u7684\u5c55\u793a\u6d88\u606f\u3002\u6240\u4ee5\u5927\u5bb6\u9047\u5230\u7c7b\u4f3c\u60c5\u51b5\u8bb0\u5f97\u914d\u7f6e nginx\u3002\u5982\u4e0b&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419015621-680302c58d211.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>3.\u5e7f\u64ad\u63a8\u9001<\/h4>\n<p>\u6211\u4eec\u4ee5\u300c\u6587\u4ef6\u4e0b\u8f7d\u300d\u529f\u80fd\u8fdb\u884c\u8bf4\u660e&#xff0c;\u4e00\u822c\u60c5\u51b5\u4e0b&#xff0c;\u5927\u6587\u4ef6\u7684\u4e0b\u8f7d&#xff0c;\u670d\u52a1\u7aef\u538b\u529b\u6bd4\u8f83\u5927\u3001\u5904\u7406\u65f6\u95f4\u4e5f\u6bd4\u8f83\u957f&#xff0c;\u4e3a\u4e86\u6709\u66f4\u597d\u7684\u4ea4\u4e92\u4f53\u9a8c&#xff0c;\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5f02\u6b65\u5904\u7406&#xff0c;\u670d\u52a1\u7aef\u5904\u7406\u5b8c\u4e86\u4e4b\u540e\u4e3b\u52a8\u901a\u77e5 \u5ba2\u6237\u7aef\u3002<\/p>\n<p>\u4e0b\u8f7d\u5b8c\u6210\u540e&#xff0c;\u6211\u4eec\u9700\u8981\u5c06\u5b8c\u6210\u4e8b\u4ef6\u63a8\u9001\u7ed9\u5ba2\u6237\u7aef\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f&#xff0c;\u7531\u4e8e\u670d\u52a1\u662f\u96c6\u7fa4\u90e8\u7f72\u3001SSE \u8fde\u63a5\u5728\u8282\u70b9\u672c\u5730 Map \u7ef4\u62a4&#xff0c;\u8fd9\u5c31\u6709\u53ef\u80fd\u5bfc\u81f4\u5f53\u524d\u5ba2\u6237\u7aef\u7684 SSE\u8fde\u63a5\u6240\u5728\u8282\u70b9 \u4e0e \u4e8b\u4ef6\u63a8\u9001\u8282\u70b9 \u662f\u4e24\u4e2a\u72ec\u7acb\u7684\u8282\u70b9\u3002<\/p>\n<p>\u56e0\u6b64&#xff0c;\u6211\u4eec\u8fd9\u91cc\u501f\u52a9\u4e8e Redis \u7684\u53d1\u5e03\/\u8ba2\u9605\u80fd\u529b&#xff0c;\u5c06\u6d88\u606f\u5e7f\u64ad\u51fa\u53bb&#xff0c;\u80fd\u5339\u914d\u8fde\u63a5\u7684\u8282\u70b9\u8d1f\u8d23\u5c06\u6d88\u606f\u63a8\u9001\u81f3\u5ba2\u6237\u7aef\u3001\u5176\u4ed6\u8282\u70b9\u76f4\u63a5\u4e22\u5f03\u5373\u53ef\u3002\u6548\u679c\u56fe\u5982\u4e0b&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419015621-680302c5ae0bd.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u80fd\u5426\u505a\u5230\u7cbe\u51c6\u6295\u9012&#xff1f;<\/p>\n<p>\u53ef\u4ee5\u7684&#xff0c;\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837&#xff1a;<\/p>\n<p>\u501f\u52a9 Redis \u505a\u4e2d\u5fc3\u5b58\u50a8&#xff0c;\u5b58\u50a8 Map &lt;\u7528\u6237, \u8282\u70b9IP&gt; 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\/>\n};<\/p>\n<h5>2)\u9a8c\u8bc1\u8fde\u63a5\u8bf7\u6c42<\/h5>\n<p>\u9a8c\u8bc1\u6240\u6709SSE\u8fde\u63a5\u8bf7\u6c42&#xff0c;\u786e\u4fdd\u5b83\u4eec\u6765\u81ea\u53ef\u4fe1\u7684\u6e90\u3002\u53ef\u4ee5\u901a\u8fc7\u68c0\u67e5Referer\u5934\u6216\u4f7f\u7528\u8eab\u4efd\u9a8c\u8bc1\u4ee4\u724c\u6765\u5b9e\u73b0\u3002<\/p>\n<p>\/\/ \u68c0\u67e5\u8bf7\u6c42\u6765\u6e90<br \/>\nString refererHost &#061; request.getHeader(&#034;Referer&#034;);<br \/>\nif (refererHost &#061;&#061; null || !refererHost.contains(&#034;trusted-domain.com&#034;)) {<br \/>\n    response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);<br \/>\n    return;<br 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\u5728Java\u4e2d&#xff0c;\u53ef\u4ee5\u4f7f\u7528\u7ebf\u7a0b\u6216\u5f02\u6b65\u5904\u7406\u6765\u7ba1\u7406SSE\u8fde\u63a5&#xff0c;\u4f46\u9700\u8981\u6ce8\u610f\u8d44\u6e90\u7684\u5408\u7406\u5206\u914d\u548c\u56de\u6536\u3002<\/p>\n<p><span class=\"token annotation punctuation\">&#064;GetMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/stream&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token class-name\">SseEmitter<\/span> <span class=\"token function\">handleSseRequest<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HttpServletRequest<\/span> request<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">SseEmitter<\/span> emitter <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">SseEmitter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6dfb\u52a0\u8d44\u6e90\u6e05\u7406\u903b\u8f91<\/span><br \/>\n    emitter<span class=\"token punctuation\">.<\/span><span class=\"token function\">onCompletion<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u6e05\u7406\u8d44\u6e90<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> emitter<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h5>2)\u5e76\u53d1\u8fde\u63a5<\/h5>\n<p>\u5f53\u5927\u91cf\u5ba2\u6237\u7aef\u540c\u65f6\u8fde\u63a5\u5230\u670d\u52a1\u5668\u65f6&#xff0c;\u670d\u52a1\u5668\u9700\u8981\u5904\u7406\u7684\u5e76\u53d1\u8fde\u63a5\u6570\u589e\u52a0&#xff0c;\u8fd9\u4f1a\u663e\u8457\u589e\u52a0CPU\u548c\u5185\u5b58\u7684\u4f7f\u7528\u7387\u3002 \u53ef\u4ee5\u4f7f\u7528\u7ebf\u7a0b\u6c60\u6765\u63a7\u5236\u5e76\u53d1\u91cf&#xff0c;\u4f8b\u5982\u5728Spring\u6846\u67b6\u4e2d\u914d\u7f6e\u7ebf\u7a0b\u6c60&#xff1a;<\/p>\n<p><span class=\"token annotation punctuation\">&#064;Configuration<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">AsyncConfig<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Executor<\/span> <span class=\"token function\">taskExecutor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">ThreadPoolTaskExecutor<\/span> executor <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ThreadPoolTaskExecutor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        executor<span class=\"token punctuation\">.<\/span><span class=\"token function\">setCorePoolSize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        executor<span class=\"token punctuation\">.<\/span><span class=\"token function\">setMaxPoolSize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        executor<span class=\"token punctuation\">.<\/span><span class=\"token function\">setQueueCapacity<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">25<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        executor<span class=\"token punctuation\">.<\/span><span class=\"token function\">setThreadNamePrefix<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;SSE-Executor-&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> executor<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token 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