{"id":49119,"date":"2025-07-30T15:52:03","date_gmt":"2025-07-30T07:52:03","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/49119.html"},"modified":"2025-07-30T15:52:03","modified_gmt":"2025-07-30T07:52:03","slug":"jakarta-websocket-deploymentexceptionendpoint-instance-creation-failed","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/49119.html","title":{"rendered":"jakarta.websocket.DeploymentException:Endpoint instance creation failed"},"content":{"rendered":"

\u9519\u8bef\u4fe1\u606f：
\n\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"
\n\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\u89e3\u51b3\u65b9\u6848：<\/p>\n

\u8981\u89e3\u51b3 WebSocket \u7aef\u70b9\u65e0\u6cd5\u5b9e\u4f8b\u5316（\u56e0\u6784\u9020\u65b9\u6cd5\u95ee\u9898），\u540c\u65f6\u4fdd\u7559\u521d\u59cb\u5316\u903b\u8f91，\u9700\u6309\u4ee5\u4e0b\u6b65\u9aa4\u8c03\u6574：<\/p>\n

\u6838\u5fc3\u95ee\u9898\u5206\u6790<\/h4>\n

WebSocket \u5bb9\u5668（\u5982 Tomcat）\u8981\u6c42 @ServerEndpoint \u7c7b\u5fc5\u987b\u6709 \u516c\u5171\u65e0\u53c2\u6784\u9020（\u7528\u4e8e\u521b\u5efa\u5b9e\u4f8b），\u4f46\u6211\u7684\u4ee3\u7801\u4e0a：<\/p>\n

  • \u6807\u6ce8\u4e86 @Component（\u8ba9 Spring \u7ba1\u7406），\u4f46 WebSocket \u5bb9\u5668\u548c Spring \u4f1a\u51b2\u7a81\u521b\u5efa\u5b9e\u4f8b；<\/li>\n
  • \u4f9d\u8d56 IatCapacity \u901a\u8fc7\u6784\u9020\u65b9\u6cd5\u6ce8\u5165，\u4f46 WebSocket \u5bb9\u5668\u65e0\u6cd5\u63d0\u4f9b\u8be5\u53c2\u6570（\u975e Spring \u4e0a\u4e0b\u6587）\u3002<\/li>\n

    \u6b63\u786e\u8c03\u6574\u65b9\u6848<\/h4>\n

    1. \u52a8\u6001\u83b7\u53d6 IatCapacity（\u66ff\u4ee3\u6784\u9020\u6ce8\u5165）<\/h5>\n

    \u56e0 WebSocket \u5bb9\u5668\u4e0d\u652f\u6301\u6784\u9020\u6ce8\u5165，\u9700\u8fd0\u884c\u65f6\u4ece Spring \u4e0a\u4e0b\u6587\u83b7\u53d6 IatCapacity：<\/p>\n

    \u6b65\u9aa4 A：\u521b\u5efa Spring \u4e0a\u4e0b\u6587\u5de5\u5177\u7c7b<\/h6>\n

    import<\/span> org.<\/span>springframework.<\/span>beans.<\/span><\/span>BeansException<\/span>;<\/span>
    \nimport<\/span> org.<\/span>springframework.<\/span>context.<\/span><\/span>ApplicationContext<\/span>;<\/span>
    \nimport<\/span> org.<\/span>springframework.<\/span>context.<\/span><\/span>ApplicationContextAware<\/span>;<\/span>
    \nimport<\/span> org.<\/span>springframework.<\/span>stereotype.<\/span><\/span>Component<\/span>;<\/span><\/p>\n

    @Component<\/span> \/\/ \u5fc5\u987b\u7531 Spring \u6258\u7ba1<\/span>
    \npublic<\/span> class<\/span> SpringUtil<\/span> implements<\/span> ApplicationContextAware<\/span> {<\/span>
    \n private<\/span> static<\/span> ApplicationContext<\/span> context;<\/span><\/p>\n

    @Override<\/span>
    \n public<\/span> void<\/span> setApplicationContext<\/span>(<\/span>ApplicationContext<\/span> applicationContext)<\/span> throws<\/span> BeansException<\/span> {<\/span>
    \n context =<\/span> applicationContext;<\/span>
    \n }<\/span><\/p>\n

    public<\/span> static<\/span> <<\/span>T<\/span>><\/span><\/span> T<\/span> getBean<\/span>(<\/span>Class<\/span><<\/span>T<\/span>><\/span><\/span> clazz)<\/span> {<\/span>
    \n return<\/span> context.<\/span>getBean<\/span>(<\/span>clazz)<\/span>;<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    \u6b65\u9aa4 B：\u5728 ASRWebsocketServer \u4e2d\u52a8\u6001\u83b7\u53d6 IatCapacity<\/h6>\n

    \u5728\u9700\u8981\u4f7f\u7528 IatCapacity \u7684\u5730\u65b9（\u5982 @OnOpen\u3001\u4e1a\u52a1\u65b9\u6cd5），\u901a\u8fc7 SpringUtil \u83b7\u53d6：<\/p>\n

    @OnOpen<\/span>
    \npublic<\/span> void<\/span> onOpen<\/span>(<\/span>Session<\/span> session)<\/span> {<\/span>
    \n \/\/ \u52a8\u6001\u83b7\u53d6 Spring \u7ba1\u7406\u7684 IatCapacity Bean<\/span>
    \n IatCapacity<\/span> iat =<\/span> SpringUtil<\/span>.<\/span>getBean<\/span>(<\/span>IatCapacity<\/span>.<\/span>class<\/span>)<\/span>;<\/span>
    \n this<\/span>.<\/span>iat =<\/span> iat;<\/span> \/\/ \u8d4b\u503c\u7ed9\u6210\u5458\u53d8\u91cf<\/span>
    \n \/\/ … \u5176\u4ed6\u521d\u59cb\u5316\u903b\u8f91<\/span>
    \n}<\/span><\/p>\n

    4. \u5b8c\u6574\u4ee3\u7801\u793a\u4f8b<\/h5>\n

    @Slf4j<\/span>
    \n@Component<\/span>
    \n@ServerEndpoint<\/span>(<\/span>"\/iat"<\/span>)<\/span>
    \npublic<\/span> class<\/span> ASRWebsocketServer<\/span> {<\/span><\/p>\n

    private<\/span> Session<\/span> session;<\/span>
    \n private<\/span> static<\/span> IatCapacity<\/span> iat =<\/span> null<\/span>;<\/span><\/p>\n

    \/\/ 2. \u8fde\u63a5\u5efa\u7acb\u65f6\u52a8\u6001\u83b7\u53d6 Bean<\/span>
    \n @OnOpen<\/span>
    \n public<\/span> void<\/span> onOpen<\/span>(<\/span>Session<\/span> session)<\/span> {<\/span>
    \n this<\/span>.<\/span>session =<\/span> session;<\/span>
    \n \/\/ \u4ece Spring \u4e0a\u4e0b\u6587\u83b7\u53d6 IatCapacity<\/span>
    \n iat =<\/span> SpringUtil<\/span>.<\/span>getBean<\/span>(<\/span>IatCapacity<\/span>.<\/span>class<\/span>)<\/span>;<\/span>
    \n \/\/ … \u5176\u4ed6\u521d\u59cb\u5316\u903b\u8f91<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u5176\u4ed6\u65b9\u6cd5（@OnMessage\u3001@OnClose \u7b49）…<\/span>
    \n}<\/span><\/p>\n

    \u903b\u8f91\u603b\u7ed3<\/h4>\n
      \n
    • \u65e0\u53c2\u6784\u9020\u662f\u5fc5\u987b\u7684：WebSocket \u5bb9\u5668\u5f3a\u5236\u8981\u6c42，\u7528\u4e8e\u5b9e\u4f8b\u5316\u3002<\/li>\n
    • \u653e\u5f03\u6784\u9020\u6ce8\u5165：WebSocket \u5bb9\u5668\u4e0d\u652f\u6301\u4f9d\u8d56\u6ce8\u5165，\u6539\u7528 SpringUtil \u52a8\u6001\u83b7\u53d6 Spring Bean\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

      \u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb135\u6b21\u3002\u65e0\u53c2\u6784\u9020\u662f\u5fc5\u987b\u7684\uff1aWebSocket \u5bb9\u5668\u5f3a\u5236\u8981\u6c42\uff0c\u7528\u4e8e\u5b9e\u4f8b\u5316\u3002\u653e\u5f03\u6784\u9020\u6ce8\u5165\uff1aWebSocket \u5bb9\u5668\u4e0d\u652f\u6301\u4f9d\u8d56\u6ce8\u5165\uff0c\u6539\u7528SpringUtil\u52a8\u6001\u83b7\u53d6 Spring Bean\u3002<\/p>\n","protected":false},"author":2,"featured_media":49117,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,947],"topic":[],"class_list":["post-49119","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-java","tag-websocket"],"yoast_head":"\njakarta.websocket.DeploymentException:Endpoint instance creation failed - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/49119.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"jakarta.websocket.DeploymentException:Endpoint instance creation failed - 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