{"id":11506,"date":"2023-11-28T22:20:47","date_gmt":"2023-11-28T14:20:47","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=11506"},"modified":"2023-12-11T10:59:50","modified_gmt":"2023-12-11T02:59:50","slug":"spring-zhong-si-zhong-yi-lai-zhu-ru-fang-shi-ni-do","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/spring-zhong-si-zhong-yi-lai-zhu-ru-fang-shi-ni-do\/","title":{"rendered":"Spring\u4e2d\u56db\u79cd\u4f9d\u8d56\u6ce8\u5165\u65b9\u5f0f\uff0c\u4f60\u90fd\u4e86\u89e3\u5417\uff1f"},"content":{"rendered":"

\u5728Spring\u6846\u67b6\u4e2d\uff0c\u6709\u56db\u79cd\u4e3b\u8981\u7684\u4f9d\u8d56\u6ce8\u5165\u65b9\u5f0f\uff1a<\/p>\n

    \n
  1. \n\u6784\u9020\u5668\u6ce8\u5165\uff08Constructor Injection\uff09\uff1a<\/strong><\/p>\n
      \n
    • \u901a\u8fc7\u6784\u9020\u5668\u5c06\u4f9d\u8d56\u9879\u4f20\u9012\u7ed9\u76ee\u6807Bean\u3002\u8fd9\u662f\u4e00\u79cd\u5e38\u89c1\u4e14\u63a8\u8350\u7684\u4f9d\u8d56\u6ce8\u5165\u65b9\u5f0f\uff0c\u56e0\u4e3a\u5b83\u786e\u4fdd\u5728\u521b\u5efaBean\u5b9e\u4f8b\u65f6\uff0c\u6240\u6709\u5fc5\u9700\u7684\u4f9d\u8d56\u9879\u90fd\u88ab\u63d0\u4f9b\u3002\u6784\u9020\u5668\u6ce8\u5165\u53ef\u4ee5\u901a\u8fc7\u5728\u6784\u9020\u5668\u4e0a\u4f7f\u7528@Autowired<\/code>\u6ce8\u89e3\u5b9e\u73b0\u3002<\/li>\n<\/ul>\n
      public class MyClass {\n    private MyDependency myDependency;\n\n    @Autowired\n    public MyClass(MyDependency myDependency) {\n        this.myDependency = myDependency;\n    }\n}\n<\/code><\/pre>\n<\/li>\n
    • \nSetter\u65b9\u6cd5\u6ce8\u5165\uff08Setter Injection\uff09\uff1a<\/strong><\/p>\n
        \n
      • \u901a\u8fc7Setter\u65b9\u6cd5\u4e3a\u76ee\u6807Bean\u8bbe\u7f6e\u4f9d\u8d56\u9879\u3002\u5728Setter\u65b9\u6cd5\u4e0a\u4f7f\u7528@Autowired<\/code>\u6ce8\u89e3\uff0cSpring\u5bb9\u5668\u4f1a\u81ea\u52a8\u8c03\u7528\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u5e76\u4f20\u9012\u76f8\u5e94\u7684\u4f9d\u8d56\u9879\u3002Setter\u65b9\u6cd5\u6ce8\u5165\u5141\u8bb8\u5728Bean\u5b9e\u4f8b\u521b\u5efa\u540e\u52a8\u6001\u5730\u66f4\u6539\u4f9d\u8d56\u9879\u3002<\/li>\n<\/ul>\n
        public class MyClass {\n    private MyDependency myDependency;\n\n    @Autowired\n    public void setMyDependency(MyDependency myDependency) {\n        this.myDependency = myDependency;\n    }\n}\n<\/code><\/pre>\n<\/li>\n
      • \n\u5b57\u6bb5\u6ce8\u5165\uff08Field Injection\uff09\uff1a<\/strong><\/p>\n
          \n
        • \u76f4\u63a5\u5c06\u4f9d\u8d56\u9879\u6ce8\u5165\u5230\u76ee\u6807Bean\u7684\u5b57\u6bb5\u4e0a\uff0c\u901a\u8fc7\u5728\u5b57\u6bb5\u4e0a\u4f7f\u7528@Autowired<\/code>\u6ce8\u89e3\u5b9e\u73b0\u3002\u867d\u7136\u7b80\u6d01\uff0c\u4f46\u8fd9\u79cd\u65b9\u5f0f\u53ef\u80fd\u4f7f\u6d4b\u8bd5\u548c\u7ef4\u62a4\u53d8\u5f97\u66f4\u52a0\u56f0\u96be\uff0c\u56e0\u4e3a\u76f4\u63a5\u8bbf\u95ee\u5b57\u6bb5\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5c01\u88c5\u6027\u7684\u964d\u4f4e\u3002<\/li>\n<\/ul>\n
          public class MyClass {\n    @Autowired\n    private MyDependency myDependency;\n}\n<\/code><\/pre>\n<\/li>\n
        • \n\u65b9\u6cd5\u6ce8\u5165\uff08Method Injection\uff09\uff1a<\/strong><\/p>\n
            \n
          • \u901a\u8fc7\u65b9\u6cd5\u6ce8\u5165\u4f9d\u8d56\u9879\u3002\u5728\u65b9\u6cd5\u4e0a\u4f7f\u7528@Autowired<\/code>\u6ce8\u89e3\uff0cSpring\u5bb9\u5668\u5c06\u8c03\u7528\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u5e76\u4f20\u9012\u76f8\u5e94\u7684\u4f9d\u8d56\u9879\u3002\u65b9\u6cd5\u6ce8\u5165\u901a\u5e38\u4e0d\u5982\u6784\u9020\u5668\u6ce8\u5165\u548cSetter\u65b9\u6cd5\u6ce8\u5165\u76f4\u89c2\uff0c\u56e0\u6b64\u8f83\u5c11\u4f7f\u7528\u3002<\/li>\n<\/ul>\n
            public class MyClass {\n    private MyDependency myDependency;\n\n    @Autowired\n    public void injectDependency(MyDependency myDependency) {\n        this.myDependency = myDependency;\n    }\n}\n<\/code><\/pre>\n<\/li>\n<\/ol>\n
            \u9009\u62e9\u54ea\u79cd\u4f9d\u8d56\u6ce8\u5165\u65b9\u5f0f\u53d6\u51b3\u4e8e\u9879\u76ee\u7684\u9700\u6c42\u548c\u5f00\u53d1\u8005\u7684\u504f\u597d\u3002\u6784\u9020\u5668\u6ce8\u5165\u901a\u5e38\u88ab\u8ba4\u4e3a\u662f\u6700\u597d\u7684\u9009\u62e9\uff0c\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u660e\u786e\u7684\u4f9d\u8d56\u9879\u58f0\u660e\u548c\u4e0d\u53ef\u53d8\u6027\uff0c\u6709\u52a9\u4e8e\u521b\u5efa\u66f4\u53ef\u6d4b\u8bd5\u548c\u53ef\u7ef4\u62a4\u7684\u4ee3\u7801\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
            \u5728Spring\u6846\u67b6\u4e2d\uff0c\u6709\u56db\u79cd\u4e3b\u8981\u7684\u4f9d\u8d56\u6ce8\u5165\u65b9\u5f0f\uff1a \u6784\u9020\u5668\u6ce8\u5165\uff08Constructor Injection\uff09\uff1a  […]<\/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-11506","post","type-post","status-publish","format-standard","hentry","category-spring"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11506","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=11506"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11506\/revisions"}],"predecessor-version":[{"id":17058,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11506\/revisions\/17058"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=11506"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=11506"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=11506"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}