{"id":11512,"date":"2023-11-28T22:21:19","date_gmt":"2023-11-28T14:21:19","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=11512"},"modified":"2023-12-11T11:03:10","modified_gmt":"2023-12-11T03:03:10","slug":"spring-shi-jian-ji-zhi-yuan-li","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/spring-shi-jian-ji-zhi-yuan-li\/","title":{"rendered":"Spring\u4e8b\u4ef6\u673a\u5236\u539f\u7406\uff1f"},"content":{"rendered":"

Spring\u7684\u4e8b\u4ef6\u673a\u5236\u662f\u57fa\u4e8e\u89c2\u5bdf\u8005\u6a21\u5f0f\uff08Observer Pattern\uff09\u7684\u4e00\u79cd\u5b9e\u73b0\uff0c\u7528\u4e8e\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u5b9e\u73b0\u677e\u8026\u5408\u7684\u7ec4\u4ef6\u4e4b\u95f4\u7684\u901a\u4fe1\u3002\u5728\u8fd9\u4e2a\u673a\u5236\u4e2d\uff0c\u4e00\u4e2a\u5bf9\u8c61\uff08\u4e8b\u4ef6\u6e90\uff09\u53d1\u5e03\u4e8b\u4ef6\uff0c\u800c\u5176\u4ed6\u5bf9\u8c61\uff08\u76d1\u542c\u5668\uff09\u8ba2\u9605\u5e76\u54cd\u5e94\u8fd9\u4e9b\u4e8b\u4ef6\u3002Spring\u7684\u4e8b\u4ef6\u673a\u5236\u5305\u62ec\u4ee5\u4e0b\u5173\u952e\u7ec4\u4ef6\uff1a<\/p>\n

    \n
  1. \nApplicationEvent\uff1a<\/strong><\/p>\n
      \n
    • ApplicationEvent<\/code>\u662f\u4e8b\u4ef6\u7684\u57fa\u7c7b\uff0c\u901a\u5e38\u662f\u4e00\u4e2a\u666e\u901a\u7684Java\u7c7b\uff0c\u7528\u4e8e\u5c01\u88c5\u4e8b\u4ef6\u7684\u4fe1\u606f\u3002\u5f00\u53d1\u8005\u53ef\u4ee5\u521b\u5efa\u81ea\u5b9a\u4e49\u7684ApplicationEvent<\/code>\u5b50\u7c7b\uff0c\u7528\u4e8e\u8868\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u4e8b\u4ef6\u3002<\/li>\n<\/ul>\n
      public class MyEvent extends ApplicationEvent {\n    \/\/ Custom event-specific fields and methods\n}\n<\/code><\/pre>\n<\/li>\n
    • \nApplicationListener\uff1a<\/strong><\/p>\n
        \n
      • ApplicationListener<\/code>\u662f\u4e8b\u4ef6\u76d1\u542c\u5668\u7684\u63a5\u53e3\uff0c\u7528\u4e8e\u76d1\u542c\u7279\u5b9a\u7c7b\u578b\u7684\u4e8b\u4ef6\u3002\u5f53\u4e8b\u4ef6\u53d1\u751f\u65f6\uff0c\u5b9e\u73b0\u4e86ApplicationListener<\/code>\u63a5\u53e3\u7684\u76d1\u542c\u5668\u5c06\u88ab\u901a\u77e5\u3002<\/li>\n<\/ul>\n
        public class MyEventListener implements ApplicationListener<MyEvent> {\n    @Override\n    public void onApplicationEvent(MyEvent event) {\n        \/\/ Handle the event\n    }\n}\n<\/code><\/pre>\n<\/li>\n
      • \nApplicationEventPublisher\uff1a<\/strong><\/p>\n
          \n
        • ApplicationEventPublisher<\/code>\u662f\u53d1\u5e03\u4e8b\u4ef6\u7684\u63a5\u53e3\uff0c\u5b83\u7531Spring\u5bb9\u5668\u81ea\u52a8\u6ce8\u5165\u5230\u5b9e\u73b0\u4e86ApplicationListener<\/code>\u63a5\u53e3\u7684Bean\u4e2d\u3002\u5f00\u53d1\u8005\u53ef\u4ee5\u4f7f\u7528ApplicationEventPublisher<\/code>\u53d1\u5e03\u81ea\u5b9a\u4e49\u4e8b\u4ef6\u3002<\/li>\n<\/ul>\n
          @Service\npublic class MyEventPublisher {\n    @Autowired\n    private ApplicationEventPublisher eventPublisher;\n\n    public void publishEvent() {\n        MyEvent event = new MyEvent(this, "Event data");\n        eventPublisher.publishEvent(event);\n    }\n}\n<\/code><\/pre>\n<\/li>\n
        • \n@EventListener\u6ce8\u89e3\uff1a<\/strong><\/p>\n
            \n
          • \u9664\u4e86\u5b9e\u73b0ApplicationListener<\/code>\u63a5\u53e3\u5916\uff0cSpring\u8fd8\u63d0\u4f9b\u4e86@EventListener<\/code>\u6ce8\u89e3\uff0c\u7528\u4e8e\u6807\u6ce8\u76d1\u542c\u4e8b\u4ef6\u7684\u65b9\u6cd5\u3002\u8fd9\u6837\u7684\u65b9\u6cd5\u4f1a\u5728\u5339\u914d\u7684\u4e8b\u4ef6\u53d1\u751f\u65f6\u88ab\u8c03\u7528\u3002<\/li>\n<\/ul>\n
            @Service\npublic class MyEventListener {\n    @EventListener\n    public void handleMyEvent(MyEvent event) {\n        \/\/ Handle the event\n    }\n}\n<\/code><\/pre>\n<\/li>\n<\/ol>\n
            \u5728\u4f7f\u7528Spring\u7684\u4e8b\u4ef6\u673a\u5236\u65f6\uff0c\u901a\u5e38\u7684\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n
              \n
            1. \u521b\u5efa\u4e00\u4e2a\u7ee7\u627f\u81eaApplicationEvent<\/code>\u7684\u81ea\u5b9a\u4e49\u4e8b\u4ef6\u7c7b\uff0c\u7528\u4e8e\u5c01\u88c5\u4e8b\u4ef6\u7684\u4fe1\u606f\u3002<\/li>\n
            2. \u521b\u5efa\u4e00\u4e2a\u5b9e\u73b0\u4e86ApplicationListener<\/code>\u63a5\u53e3\u7684\u4e8b\u4ef6\u76d1\u542c\u5668\u7c7b\uff0c\u7528\u4e8e\u54cd\u5e94\u7279\u5b9a\u7c7b\u578b\u7684\u4e8b\u4ef6\u3002<\/li>\n
            3. \u5728\u9700\u8981\u53d1\u5e03\u4e8b\u4ef6\u7684\u7ec4\u4ef6\u4e2d\uff0c\u6ce8\u5165ApplicationEventPublisher<\/code>\u63a5\u53e3\uff0c\u8c03\u7528publishEvent<\/code>\u65b9\u6cd5\u53d1\u5e03\u81ea\u5b9a\u4e49\u4e8b\u4ef6\u3002<\/li>\n
            4. \u4e8b\u4ef6\u76d1\u542c\u5668\u63a5\u6536\u5230\u4e8b\u4ef6\u540e\uff0c\u6267\u884c\u76f8\u5e94\u7684\u4e1a\u52a1\u903b\u8f91\u3002<\/li>\n<\/ol>\n
              \u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u5b9e\u73b0\u4e86\u7ec4\u4ef6\u4e4b\u95f4\u7684\u89e3\u8026\uff0c\u4f7f\u5f97\u4e8b\u4ef6\u7684\u53d1\u5e03\u8005\u548c\u8ba2\u9605\u8005\u4e4b\u95f4\u4e0d\u76f4\u63a5\u4f9d\u8d56\uff0c\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u7075\u6d3b\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u8fd9\u6837\u7684\u4e8b\u4ef6\u673a\u5236\u5728Spring\u6846\u67b6\u4e2d\u88ab\u5e7f\u6cdb\u5e94\u7528\uff0c\u4f8b\u5982\u5728Spring MVC\u4e2d\u7684\u4e8b\u4ef6\u673a\u5236\u53ef\u4ee5\u7528\u4e8e\u5904\u7406Web\u8bf7\u6c42\u751f\u547d\u5468\u671f\u4e2d\u7684\u4e8b\u4ef6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
              Spring\u7684\u4e8b\u4ef6\u673a\u5236\u662f\u57fa\u4e8e\u89c2\u5bdf\u8005\u6a21\u5f0f\uff08Observer Pattern\uff09\u7684\u4e00\u79cd\u5b9e\u73b0\uff0c\u7528\u4e8e\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u5b9e\u73b0\u677e\u8026 […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[121],"tags":[],"class_list":["post-11512","post","type-post","status-publish","format-standard","hentry","category-spring"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11512","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=11512"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11512\/revisions"}],"predecessor-version":[{"id":17061,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11512\/revisions\/17061"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=11512"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=11512"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=11512"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}