{"id":23171,"date":"2025-04-19T07:12:50","date_gmt":"2025-04-18T23:12:50","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/23171.html"},"modified":"2025-04-19T07:12:50","modified_gmt":"2025-04-18T23:12:50","slug":"%e4%b8%bb%e6%b5%81%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%8e%a8%e9%80%81%e6%8a%80%e6%9c%af%e6%a6%82%e8%bf%b0%e4%b8%8e-java-sse-server-sent-events-%e8%af%a6%e7%bb%86%e8%ae%b2%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/23171.html","title":{"rendered":"\u4e3b\u6d41\u670d\u52a1\u5668\u63a8\u9001\u6280\u672f\u6982\u8ff0\u4e0e Java SSE (Server-Sent Events) \u8be6\u7ec6\u8bb2\u89e3"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\n<ul>\n<li>\n<ul>\n<li>1. \u7b80\u4ecb<\/li>\n<li>2. \u4e3b\u6d41\u670d\u52a1\u5668\u63a8\u9001\u6280\u672f\u6982\u89c8<\/li>\n<li>\n<ul>\n<li>2.1 WebSocket<\/li>\n<li>2.2 Long Polling<\/li>\n<li>2.3 Server-Sent Events (SSE)<\/li>\n<li>2.4 HTTP\/2 Push<\/li>\n<\/ul>\n<\/li>\n<li>3. \u5404\u6280\u672f\u6bd4\u8f83<\/li>\n<li>4. \u6df1\u5165\u7406\u89e3 Java Server-Sent Events (SSE)<\/li>\n<li>\n<ul>\n<li>4.1 \u4ec0\u4e48\u662f Server-Sent Events<\/li>\n<li>4.2 \u5de5\u4f5c\u539f\u7406<\/li>\n<\/ul>\n<\/li>\n<li>5. Java SSE \u5b9e\u73b0\u8be6\u7ec6\u4ee3\u7801\u793a\u4f8b<\/li>\n<li>\n<ul>\n<li>5.1 \u9879\u76ee\u4f9d\u8d56\u914d\u7f6e<\/li>\n<li>5.2 \u540e\u7aef\u4ee3\u7801<\/li>\n<li>5.3 \u524d\u7aef\u4ee3\u7801<\/li>\n<li>5.4 \u8fd0\u884c\u7ed3\u679c\u5c55\u793a<\/li>\n<\/ul>\n<\/li>\n<li>6. \u5e94\u7528\u573a\u666f<\/li>\n<li>\n<ul>\n<li>6.1 \u5b9e\u65f6\u901a\u77e5<\/li>\n<li>6.2 \u80a1\u7968\u5e02\u573a\u5b9e\u65f6\u66f4\u65b0<\/li>\n<li>6.3 \u5b9e\u65f6\u804a\u5929\u5e94\u7528<\/li>\n<\/ul>\n<\/li>\n<li>7. \u603b\u7ed3<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>1. \u7b80\u4ecb<\/h4>\n<p>\u968f\u7740\u5b9e\u65f6\u5e94\u7528\u9700\u6c42\u7684\u589e\u52a0\uff0c\u4f20\u7edf\u7684\u8bf7\u6c42\/\u54cd\u5e94\u6a21\u578b\u9010\u6e10\u65e0\u6cd5\u6ee1\u8db3\u7528\u6237\u7684\u671f\u671b\u3002\u670d\u52a1\u5668\u63a8\u9001\u6280\u672f\u8ba9\u670d\u52a1\u5668\u80fd\u591f\u4e3b\u52a8\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u66f4\u65b0\uff0c\u800c\u65e0\u9700\u5ba2\u6237\u7aef\u53cd\u590d\u8bf7\u6c42\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u51e0\u79cd\u4e3b\u6d41\u7684\u670d\u52a1\u5668\u63a8\u9001\u6280\u672f\uff0c\u5e76\u91cd\u70b9\u63a2\u8ba8 Java Server-Sent Events (SSE) \u7684\u5b9e\u73b0\u4e0e\u5e94\u7528\u3002<\/p>\n<h4>2. \u4e3b\u6d41\u670d\u52a1\u5668\u63a8\u9001\u6280\u672f\u6982\u89c8<\/h4>\n<h5>2.1 WebSocket<\/h5>\n<p>\u7b80\u4ecb: WebSocket \u662f\u4e00\u4e2a\u53cc\u5411\u901a\u4fe1\u534f\u8bae\uff0c\u5141\u8bb8\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u4e4b\u95f4\u7684\u5b9e\u65f6\u6570\u636e\u4ea4\u6362\u3002\u76f8\u6bd4\u4f20\u7edf\u7684 HTTP \u8bf7\u6c42\uff0cWebSocket \u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2a\u6301\u7eed\u7684\u8fde\u63a5\u6765\u4f20\u8f93\u6570\u636e\u3002<\/p>\n<p>\u4f18\u70b9:<\/p>\n<ul>\n<li>\u53cc\u5411\u901a\u4fe1<\/li>\n<li>\u4f4e\u5ef6\u8fdf<\/li>\n<li>\u9ad8\u6548\u7684\u7f51\u7edc\u5e26\u5bbd\u4f7f\u7528<\/li>\n<\/ul>\n<p>\u7f3a\u70b9:<\/p>\n<ul>\n<li>\u9700\u8981\u989d\u5916\u7684\u670d\u52a1\u5668\u652f\u6301<\/li>\n<li>\u66f4\u590d\u6742\u7684\u534f\u8bae<\/li>\n<\/ul>\n<h5>2.2 Long Polling<\/h5>\n<p>\u7b80\u4ecb: Long Polling \u662f\u4e00\u79cd\u6a21\u62df\u5b9e\u65f6\u66f4\u65b0\u7684\u65b9\u6cd5\uff0c\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42\uff0c\u670d\u52a1\u5668\u4fdd\u6301\u8fde\u63a5\u76f4\u5230\u6709\u6570\u636e\u8fd4\u56de\u6216\u8fde\u63a5\u8d85\u65f6\u3002\u7136\u540e\u5ba2\u6237\u7aef\u7acb\u5373\u53d1\u9001\u65b0\u7684\u8bf7\u6c42\u3002<\/p>\n<p>\u4f18\u70b9:<\/p>\n<ul>\n<li>\u5bb9\u6613\u5b9e\u73b0\uff0c\u517c\u5bb9\u6027\u597d<\/li>\n<li>\u53ef\u4ee5\u5728\u5927\u591a\u6570 HTTP \u670d\u52a1\u5668\u4e0a\u5de5\u4f5c<\/li>\n<\/ul>\n<p>\u7f3a\u70b9:<\/p>\n<ul>\n<li>\u9ad8\u5ef6\u8fdf<\/li>\n<li>\u4e0d\u5982 WebSocket \u548c SSE \u9ad8\u6548<\/li>\n<\/ul>\n<h5>2.3 Server-Sent Events (SSE)<\/h5>\n<p>\u7b80\u4ecb: SSE \u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u63a8\u9001\u6280\u672f\uff0c\u5141\u8bb8\u670d\u52a1\u5668\u5411\u5ba2\u6237\u7aef\u63a8\u9001\u4e8b\u4ef6\u3002\u4f7f\u7528\u6807\u51c6 HTTP \u534f\u8bae\u8fdb\u884c\u901a\u4fe1\uff0c\u5ba2\u6237\u7aef\u901a\u8fc7 EventSource \u63a5\u6536\u4e8b\u4ef6\u3002<\/p>\n<p>\u4f18\u70b9:<\/p>\n<ul>\n<li>\u7b80\u5355\u7684\u5355\u5411\u901a\u4fe1<\/li>\n<li>\u8f7b\u91cf\u7ea7<\/li>\n<li>\u81ea\u52a8\u91cd\u8fde\u548c\u9519\u8bef\u5904\u7406<\/li>\n<\/ul>\n<p>\u7f3a\u70b9:<\/p>\n<ul>\n<li>\u4ec5\u652f\u6301\u5355\u5411\u901a\u4fe1<\/li>\n<li>\u8fde\u63a5\u53ef\u80fd\u4f1a\u53d7\u5230\u4ee3\u7406\u548c\u9632\u706b\u5899\u7684\u9650\u5236<\/li>\n<\/ul>\n<h5>2.4 HTTP\/2 Push<\/h5>\n<p>\u7b80\u4ecb: HTTP\/2 Push \u5141\u8bb8\u670d\u52a1\u5668\u5728\u5ba2\u6237\u7aef\u53d1\u51fa\u8bf7\u6c42\u4e4b\u524d\u53d1\u9001\u8d44\u6e90\u3002\u867d\u7136\u8fd9\u4e0d\u662f\u771f\u6b63\u610f\u4e49\u4e0a\u7684\u63a8\u9001\u6280\u672f\uff0c\u4f46\u53ef\u4ee5\u51cf\u5c11\u8d44\u6e90\u83b7\u53d6\u7684\u5ef6\u8fdf\u3002<\/p>\n<p>\u4f18\u70b9:<\/p>\n<ul>\n<li>\u9002\u5408\u8d44\u6e90\u7684\u9884\u52a0\u8f7d<\/li>\n<li>\u96c6\u6210\u5728 HTTP\/2 \u534f\u8bae\u4e2d<\/li>\n<\/ul>\n<p>\u7f3a\u70b9:<\/p>\n<ul>\n<li>\u5b9e\u73b0\u548c\u8c03\u8bd5\u76f8\u5bf9\u590d\u6742<\/li>\n<li>\u652f\u6301\u4f9d\u8d56\u4e8e\u6d4f\u89c8\u5668\u548c\u670d\u52a1\u5668<\/li>\n<\/ul>\n<h4>3. \u5404\u6280\u672f\u6bd4\u8f83<\/h4>\n<table>\n<tr>\n   \u6280\u672f<br \/>\n   \u53cc\u5411\u901a\u4fe1<br \/>\n   \u8fde\u63a5\u65b9\u5f0f<br \/>\n   \u590d\u6742\u5ea6<br \/>\n   \u5178\u578b\u5e94\u7528\u573a\u666f<br \/>\n  <\/tr>\n<tbody>\n<tr>\n<td>WebSocket<\/td>\n<td>\u662f<\/td>\n<td>\u6301\u4e45\u8fde\u63a5<\/td>\n<td>\u9ad8<\/td>\n<td>\u804a\u5929\u5e94\u7528\uff0c\u6e38\u620f\uff0c\u80a1\u7968\u5b9e\u65f6\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td>Long Polling<\/td>\n<td>\u5426<\/td>\n<td>\u591a\u4e2a\u77ed\u8fde\u63a5<\/td>\n<td>\u4f4e<\/td>\n<td>\u5b9e\u65f6\u901a\u77e5\uff0c\u517c\u5bb9\u6027\u8981\u6c42\u9ad8\u7684\u573a\u666f<\/td>\n<\/tr>\n<tr>\n<td>Server-Sent Events<\/td>\n<td>\u5426<\/td>\n<td>\u6301\u4e45\u8fde\u63a5<\/td>\n<td>\u4e2d<\/td>\n<td>\u5b9e\u65f6\u901a\u77e5\uff0c\u7cfb\u7edf\u76d1\u63a7<\/td>\n<\/tr>\n<tr>\n<td>HTTP\/2 Push<\/td>\n<td>\u5426<\/td>\n<td>\u6301\u4e45\u8fde\u63a5<\/td>\n<td>\u4e2d<\/td>\n<td>\u9759\u6001\u8d44\u6e90\u9884\u52a0\u8f7d\uff0c\u7f51\u9875\u52a0\u901f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>4. \u6df1\u5165\u7406\u89e3 Java Server-Sent Events (SSE)<\/h4>\n<h5>4.1 \u4ec0\u4e48\u662f Server-Sent Events<\/h5>\n<p>Server-Sent Events (SSE) \u662f\u4e00\u79cd\u670d\u52a1\u5668\u5411\u5ba2\u6237\u7aef\u63a8\u9001\u6570\u636e\u7684\u6280\u672f\uff0c\u5ba2\u6237\u7aef\u901a\u8fc7\u8ba2\u9605\u7279\u5b9a\u7684\u4e8b\u4ef6\u6d41\u6765\u63a5\u6536\u670d\u52a1\u5668\u63a8\u9001\u7684\u6570\u636e\u3002\u5b83\u4f7f\u7528 HTTP \u534f\u8bae\uff0c\u56e0\u6b64\u4e0d\u9700\u8981\u989d\u5916\u7684\u534f\u8bae\u652f\u6301\uff0c\u9002\u5408\u7528\u4e8e\u8f7b\u91cf\u7ea7\u7684\u5b9e\u65f6\u5e94\u7528\u3002<\/p>\n<h5>4.2 \u5de5\u4f5c\u539f\u7406<\/h5>\n<ul>\n<li>\u5ba2\u6237\u7aef: \u5ba2\u6237\u7aef\u901a\u8fc7 EventSource \u8ba2\u9605\u670d\u52a1\u5668\u7aef\u7684\u4e8b\u4ef6\u6d41\u3002<\/li>\n<li>\u670d\u52a1\u5668: \u670d\u52a1\u5668\u901a\u8fc7\u4fdd\u6301\u8fde\u63a5\u5e76\u4e0d\u65ad\u53d1\u9001\u4e8b\u4ef6\u6570\u636e\u6765\u5b9e\u73b0\u5b9e\u65f6\u63a8\u9001\u3002<\/li>\n<\/ul>\n<h4>5. Java SSE \u5b9e\u73b0\u8be6\u7ec6\u4ee3\u7801\u793a\u4f8b<\/h4>\n<h5>5.1 \u9879\u76ee\u4f9d\u8d56\u914d\u7f6e<\/h5>\n<p>\u5728 Maven \u9879\u76ee\u7684 pom.xml \u4e2d\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u4f9d\u8d56\uff1a<\/p>\n<p><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>dependencies<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>dependency<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>groupId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>org.springframework.boot<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>groupId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>artifactId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>spring-boot-starter-web<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>artifactId<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>dependency<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n&lt;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.2k\u6b21\uff0c\u70b9\u8d5e35\u6b21\uff0c\u6536\u85cf28\u6b21\u3002\u968f\u7740\u5b9e\u65f6\u5e94\u7528\u9700\u6c42\u7684\u589e\u52a0\uff0c\u4f20\u7edf\u7684\u8bf7\u6c42\/\u54cd\u5e94\u6a21\u578b\u9010\u6e10\u65e0\u6cd5\u6ee1\u8db3\u7528\u6237\u7684\u671f\u671b\u3002\u670d\u52a1\u5668\u63a8\u9001\u6280\u672f\u8ba9\u670d\u52a1\u5668\u80fd\u591f\u4e3b\u52a8\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u66f4\u65b0\uff0c\u800c\u65e0\u9700\u5ba2\u6237\u7aef\u53cd\u590d\u8bf7\u6c42\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u51e0\u79cd\u4e3b\u6d41\u7684\u670d\u52a1\u5668\u63a8\u9001\u6280\u672f\uff0c\u5e76\u91cd\u70b9\u63a2\u8ba8 Java Server-Sent Events (SSE) \u7684\u5b9e\u73b0\u4e0e\u5e94\u7528\u3002Server-Sent Events (SSE) \u662f\u4e00\u79cd\u670d\u52a1\u5668\u5411\u5ba2\u6237\u7aef\u63a8\u9001\u6570\u636e\u7684\u6280\u672f\uff0c\u5ba2\u6237\u7aef\u901a\u8fc7\u8ba2\u9605\u7279\u5b9a\u7684\u4e8b\u4ef6\u6d41\u6765\u63a5\u6536\u670d\u52a1\u5668\u63a8\u9001\u7684\u6570\u636e\u3002\u5b83\u4f7f\u7528 HTTP \u534f\u8bae\uff0c\u56e0\u6b64\u4e0d\u9700\u8981\u989d\u5916\u7684\u534f\u8bae\u652f\u6301\uff0c\u9002\u5408\u7528\u4e8e\u8f7b\u91cf\u7ea7\u7684\u5b9e\u65f6\u5e94\u7528\u3002_java sse<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,43,44],"topic":[],"class_list":["post-23171","post","type-post","status-publish","format-standard","hentry","category-server","tag-java","tag-43","tag-44"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - 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