{"id":47878,"date":"2023-11-28T22:49:11","date_gmt":"2023-11-28T14:49:11","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=47878"},"modified":"2023-12-11T16:14:13","modified_gmt":"2023-12-11T08:14:13","slug":"spring-zhong-despringbean-le-jie-ma","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/spring-zhong-despringbean-le-jie-ma\/","title":{"rendered":"Spring\u4e2d\u7684SpringBean\u4e86\u89e3\u5417\uff1f"},"content":{"rendered":"

\u5728Spring\u4e2d\uff0c\u201cSpring Bean\u201d\u901a\u5e38\u6307\u7531Spring\u5bb9\u5668\u7ba1\u7406\u7684\u5bf9\u8c61\u5b9e\u4f8b\u3002\u8fd9\u4e9bBean\u7531Spring\u5bb9\u5668\u8d1f\u8d23\u521b\u5efa\u3001\u914d\u7f6e\u548c\u7ba1\u7406\uff0c\u4ee5\u5b9e\u73b0\u677e\u6563\u8026\u5408\u548c\u66f4\u597d\u7684\u53ef\u7ef4\u62a4\u6027\u3002Spring Bean\u53ef\u4ee5\u662f\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u4efb\u4f55Java\u5bf9\u8c61\uff0c\u7531Spring\u5bb9\u5668\u5b9e\u4f8b\u5316\u3001\u88c5\u914d\u548c\u7ba1\u7406\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u5173\u4e8eSpring Bean\u7684\u4e00\u4e9b\u5173\u952e\u6982\u5ff5\uff1a<\/p>\n

    \n
  1. \nBean\u5b9a\u4e49\uff08Bean Definition\uff09\uff1a<\/strong><\/p>\n
      \n
    • \u6bcf\u4e2aSpring Bean\u90fd\u6709\u4e00\u4e2a\u5bf9\u5e94\u7684Bean\u5b9a\u4e49\uff0c\u8be5\u5b9a\u4e49\u5305\u542b\u6709\u5173\u5982\u4f55\u521b\u5efa\u548c\u914d\u7f6eBean\u7684\u4fe1\u606f\u3002Bean\u5b9a\u4e49\u53ef\u4ee5\u901a\u8fc7XML\u914d\u7f6e\u6587\u4ef6\u3001Java\u914d\u7f6e\u7c7b\u6216\u6ce8\u89e3\u6765\u5b9a\u4e49\u3002<\/li>\n<\/ul>\n<\/li>\n
    • \n\u4f5c\u7528\u57df\uff08Scope\uff09\uff1a<\/strong><\/p>\n
        \n
      • Spring\u63d0\u4f9b\u4e86\u4e0d\u540c\u7684Bean\u4f5c\u7528\u57df\uff0c\u4f8b\u5982singleton\uff08\u9ed8\u8ba4\uff09\u3001prototype\u3001request\u3001session\u7b49\u3002Bean\u7684\u4f5c\u7528\u57df\u5b9a\u4e49\u4e86Bean\u5b9e\u4f8b\u7684\u751f\u547d\u5468\u671f\u8303\u56f4\u3002<\/li>\n<\/ul>\n<\/li>\n
      • \n\u4f9d\u8d56\u6ce8\u5165\uff08Dependency Injection\uff0cDI\uff09\uff1a<\/strong><\/p>\n
          \n
        • Spring\u4f7f\u7528\u4f9d\u8d56\u6ce8\u5165\u6765\u88c5\u914dBean\u3002\u4f9d\u8d56\u6ce8\u5165\u662f\u6307\u5c06\u4e00\u4e2aBean\u6240\u4f9d\u8d56\u7684\u5176\u4ed6Bean\u6ce8\u5165\u5230\u5b83\u5185\u90e8\uff0c\u5b9e\u73b0\u5bf9\u8c61\u4e4b\u95f4\u7684\u677e\u6563\u8026\u5408\u3002<\/li>\n<\/ul>\n<\/li>\n
        • \n\u751f\u547d\u5468\u671f\u56de\u8c03\u65b9\u6cd5\uff1a<\/strong><\/p>\n
            \n
          • Spring\u5141\u8bb8Bean\u5728\u521d\u59cb\u5316\u548c\u9500\u6bc1\u9636\u6bb5\u6267\u884c\u7279\u5b9a\u7684\u56de\u8c03\u65b9\u6cd5\u3002\u8fd9\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u901a\u8fc7\u5b9e\u73b0InitializingBean<\/code>\u548cDisposableBean<\/code>\u63a5\u53e3\uff0c\u6216\u4f7f\u7528@PostConstruct<\/code>\u548c@PreDestroy<\/code>\u6ce8\u89e3\u6765\u5b9a\u4e49\u3002<\/li>\n<\/ul>\n<\/li>\n
          • \n\u61d2\u52a0\u8f7d\uff08Lazy Initialization\uff09\uff1a<\/strong><\/p>\n
              \n
            • Spring\u5141\u8bb8\u5ef6\u8fdf\u52a0\u8f7dBean\uff0c\u5373\u5728\u9700\u8981\u65f6\u518d\u8fdb\u884c\u5b9e\u4f8b\u5316\u3002\u53ef\u4ee5\u901a\u8fc7@Lazy<\/code>\u6ce8\u89e3\u6216XML\u914d\u7f6e\u4e2d\u7684lazy-init<\/code>\u5c5e\u6027\u6765\u5b9e\u73b0\u61d2\u52a0\u8f7d\u3002<\/li>\n<\/ul>\n<\/li>\n
            • \nBean\u81ea\u52a8\u88c5\u914d\uff08Autowiring\uff09\uff1a<\/strong><\/p>\n
                \n
              • Spring\u652f\u6301\u81ea\u52a8\u88c5\u914d\uff0c\u5b83\u901a\u8fc7\u7c7b\u578b\u3001\u540d\u79f0\u7b49\u65b9\u5f0f\u81ea\u52a8\u5c06Bean\u7684\u4f9d\u8d56\u6ce8\u5165\u5230\u76f8\u5e94\u7684\u5c5e\u6027\u4e2d\u3002\u53ef\u4ee5\u4f7f\u7528@Autowired<\/code>\u6ce8\u89e3\u6216\u901a\u8fc7XML\u914d\u7f6e\u5b9e\u73b0\u81ea\u52a8\u88c5\u914d\u3002<\/li>\n<\/ul>\n<\/li>\n
              • \nFactoryBean\uff1a<\/strong><\/p>\n
                  \n
                • FactoryBean<\/code>\u662fSpring\u4e2d\u7684\u4e00\u4e2a\u7279\u6b8a\u63a5\u53e3\uff0c\u5141\u8bb8Bean\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u5b9e\u4f8b\u5316\u903b\u8f91\u3002\u901a\u8fc7\u5b9e\u73b0FactoryBean<\/code>\u63a5\u53e3\uff0c\u53ef\u4ee5\u5b9a\u4e49\u81ea\u5df1\u7684\u5de5\u5382Bean\u3002<\/li>\n<\/ul>\n<\/li>\n
                • \nBeanPostProcessor\uff1a<\/strong><\/p>\n
                    \n
                  • BeanPostProcessor<\/code>\u662fSpring\u63d0\u4f9b\u7684\u6269\u5c55\u70b9\u4e4b\u4e00\uff0c\u5b83\u5141\u8bb8\u5728Bean\u521d\u59cb\u5316\u524d\u540e\u5bf9Bean\u8fdb\u884c\u5904\u7406\u3002\u53ef\u4ee5\u901a\u8fc7\u5b9e\u73b0BeanPostProcessor<\/code>\u63a5\u53e3\u6765\u5b9a\u4e49\u81ea\u5b9a\u4e49\u7684\u5904\u7406\u903b\u8f91\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                    Spring Bean\u662fSpring\u5bb9\u5668\u4e2d\u626e\u6f14\u91cd\u8981\u89d2\u8272\u7684\u7ec4\u4ef6\uff0c\u901a\u8fc7IoC\u548c\u4f9d\u8d56\u6ce8\u5165\u7b49\u673a\u5236\uff0c\u5b83\u4f7f\u5f97\u5e94\u7528\u7a0b\u5e8f\u66f4\u52a0\u7075\u6d3b\u3001\u53ef\u7ef4\u62a4\uff0c\u5e76\u652f\u6301\u5404\u79cd\u9ad8\u7ea7\u7279\u6027\u548c\u6269\u5c55\u70b9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

                    \u5728Spring\u4e2d\uff0c\u201cSpring Bean\u201d\u901a\u5e38\u6307\u7531Spring\u5bb9\u5668\u7ba1\u7406\u7684\u5bf9\u8c61\u5b9e\u4f8b\u3002\u8fd9\u4e9bBean\u7531Spring […]<\/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-47878","post","type-post","status-publish","format-standard","hentry","category-spring"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/47878","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=47878"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/47878\/revisions"}],"predecessor-version":[{"id":47879,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/47878\/revisions\/47879"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=47878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=47878"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=47878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}