{"id":11572,"date":"2023-11-28T22:25:33","date_gmt":"2023-11-28T14:25:33","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=11572"},"modified":"2023-12-11T11:22:52","modified_gmt":"2023-12-11T03:22:52","slug":"spring-zhong-yi-lai-zhu-ru-he-yi-lai-cha-zhao-de-l","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/spring-zhong-yi-lai-zhu-ru-he-yi-lai-cha-zhao-de-l\/","title":{"rendered":"Spring\u4e2d\u4f9d\u8d56\u6ce8\u5165\u548c\u4f9d\u8d56\u67e5\u627e\u7684\u6765\u6e90\u662f\u5426\u76f8\u540c\uff1f"},"content":{"rendered":"<p>\u4f9d\u8d56\u6ce8\u5165\uff08Dependency Injection\uff09\u548c\u4f9d\u8d56\u67e5\u627e\uff08Dependency Lookup\uff09\u662f\u4e24\u79cd\u4e0d\u540c\u7684\u4f9d\u8d56\u5904\u7406\u673a\u5236\uff0c\u5b83\u4eec\u7684\u6765\u6e90\u548c\u5b9e\u73b0\u65b9\u5f0f\u6709\u6240\u4e0d\u540c\u3002<\/p>\n<ol>\n<li>\n<strong>\u4f9d\u8d56\u6ce8\u5165\uff08DI\uff09\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u6765\u6e90\uff1a<\/strong> \u4f9d\u8d56\u6ce8\u5165\u662f\u4e00\u79cd\u901a\u8fc7\u5c06\u4f9d\u8d56\u9879\u4f20\u9012\u7ed9\u76ee\u6807\u5bf9\u8c61\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0\u7684\u3002\u5728Spring\u4e2d\uff0c\u4f9d\u8d56\u6ce8\u5165\u662f\u901a\u8fc7\u6784\u9020\u5668\u6ce8\u5165\u3001Setter\u65b9\u6cd5\u6ce8\u5165\u6216\u5b57\u6bb5\u6ce8\u5165\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0\u7684\u3002<\/li>\n<li><strong>\u5b9e\u73b0\u65b9\u5f0f\uff1a<\/strong> Spring\u5bb9\u5668\u8d1f\u8d23\u521b\u5efa\u548c\u7ba1\u7406Bean\u5bf9\u8c61\uff0c\u5e76\u5728\u9700\u8981\u7684\u65f6\u5019\u5c06\u4f9d\u8d56\u9879\u6ce8\u5165\u5230\u76ee\u6807\u5bf9\u8c61\u4e2d\u3002\u5f00\u53d1\u8005\u901a\u8fc7\u914d\u7f6e\u6216\u6ce8\u89e3\u6765\u544a\u8bc9Spring\u5bb9\u5668\u5982\u4f55\u8fdb\u884c\u4f9d\u8d56\u6ce8\u5165\u3002<\/li>\n<\/ul>\n<pre><code class=\"language-java\">public class MyService {\n    private MyDependency myDependency;\n\n    \/\/ \u6784\u9020\u5668\u6ce8\u5165\n    public MyService(MyDependency myDependency) {\n        this.myDependency = myDependency;\n    }\n\n    \/\/ Setter\u65b9\u6cd5\u6ce8\u5165\n    public void setMyDependency(MyDependency myDependency) {\n        this.myDependency = myDependency;\n    }\n}\n<\/code><\/pre>\n<\/li>\n<li>\n<strong>\u4f9d\u8d56\u67e5\u627e\uff08DL\uff09\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u6765\u6e90\uff1a<\/strong> \u4f9d\u8d56\u67e5\u627e\u662f\u4e00\u79cd\u901a\u8fc7\u5728\u9700\u8981\u65f6\u5411\u5bb9\u5668\u8bf7\u6c42\u4f9d\u8d56\u9879\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0\u7684\u3002\u5f00\u53d1\u8005\u901a\u8fc7\u7f16\u7a0b\u65b9\u5f0f\u5411\u5bb9\u5668\u8bf7\u6c42\u4f9d\u8d56\u9879\u3002<\/li>\n<li><strong>\u5b9e\u73b0\u65b9\u5f0f\uff1a<\/strong> Spring\u5bb9\u5668\u8d1f\u8d23\u7ba1\u7406Bean\u5bf9\u8c61\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e00\u4e9bAPI\uff08\u5982<code>getBean()<\/code>\u65b9\u6cd5\uff09\u6765\u5141\u8bb8\u5f00\u53d1\u8005\u5728\u8fd0\u884c\u65f6\u4ece\u5bb9\u5668\u4e2d\u67e5\u627e\u9700\u8981\u7684\u4f9d\u8d56\u9879\u3002<\/li>\n<\/ul>\n<pre><code class=\"language-java\">public class MyService {\n    private MyDependency myDependency;\n\n    \/\/ \u4f9d\u8d56\u67e5\u627e\n    public void doSomething() {\n        myDependency = applicationContext.getBean(MyDependency.class);\n        \/\/ \u6267\u884c\u4e1a\u52a1\u903b\u8f91\n    }\n}\n<\/code><\/pre>\n<\/li>\n<\/ol>\n<p>\u867d\u7136\u4f9d\u8d56\u6ce8\u5165\u548c\u4f9d\u8d56\u67e5\u627e\u90fd\u662f\u5b9e\u73b0\u4f9d\u8d56\u7ba1\u7406\u7684\u65b9\u5f0f\uff0c\u4f46\u5b83\u4eec\u7684\u601d\u60f3\u548c\u5b9e\u73b0\u65b9\u5f0f\u6709\u5f88\u5927\u7684\u4e0d\u540c\u3002\u4f9d\u8d56\u6ce8\u5165\u66f4\u5f3a\u8c03\u7531\u5bb9\u5668\u8d1f\u8d23\u7ba1\u7406\u548c\u6ce8\u5165\u4f9d\u8d56\u9879\uff0c\u800c\u4f9d\u8d56\u67e5\u627e\u5219\u66f4\u5f3a\u8c03\u7531\u5f00\u53d1\u8005\u5728\u9700\u8981\u65f6\u4e3b\u52a8\u4ece\u5bb9\u5668\u4e2d\u67e5\u627e\u4f9d\u8d56\u9879\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u901a\u5e38\u4f1a\u9009\u62e9\u4f9d\u8d56\u6ce8\u5165\u7684\u65b9\u5f0f\uff0c\u56e0\u4e3a\u5b83\u66f4\u7b26\u5408\u9762\u5411\u5bf9\u8c61\u8bbe\u8ba1\u7684\u539f\u5219\uff0c\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u677e\u8026\u5408\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f9d\u8d56\u6ce8\u5165\uff08Dependency Injection\uff09\u548c\u4f9d\u8d56\u67e5\u627e\uff08Dependency Lookup\uff09\u662f\u4e24\u79cd\u4e0d\u540c [&hellip;]<\/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-11572","post","type-post","status-publish","format-standard","hentry","category-spring"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11572","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=11572"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11572\/revisions"}],"predecessor-version":[{"id":17081,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11572\/revisions\/17081"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=11572"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=11572"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=11572"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}