{"id":11488,"date":"2023-11-28T22:19:42","date_gmt":"2023-11-28T14:19:42","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=11488"},"modified":"2023-12-11T10:57:06","modified_gmt":"2023-12-11T02:57:06","slug":"spring-zhongqualifier-zhu-jie-you-shen-me-yong","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/spring-zhongqualifier-zhu-jie-you-shen-me-yong\/","title":{"rendered":"Spring\u4e2d@Qualifier\u6ce8\u89e3\u6709\u4ec0\u4e48\u7528\uff1f"},"content":{"rendered":"<p><code>@Qualifier<\/code>\u6ce8\u89e3\u662fSpring\u6846\u67b6\u4e2d\u7528\u4e8e\u6307\u5b9a\u7279\u5b9aBean\u7684\u6ce8\u89e3\uff0c\u5b83\u901a\u5e38\u4e0e<code>@Autowired<\/code>\u6ce8\u89e3\u4e00\u8d77\u4f7f\u7528\u3002\u5f53\u4e00\u4e2a\u63a5\u53e3\u6709\u591a\u4e2a\u5b9e\u73b0\u7c7b\u65f6\uff0c\u4f7f\u7528<code>@Qualifier<\/code>\u53ef\u4ee5\u660e\u786e\u6307\u5b9a\u8981\u6ce8\u5165\u7684Bean\u3002<\/p>\n<p>\u5177\u4f53\u6765\u8bf4\uff0c<code>@Qualifier<\/code>\u6ce8\u89e3\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u901a\u8fc7\u6307\u5b9aBean\u7684\u540d\u79f0\uff0c\u89e3\u51b3\u7531<code>@Autowired<\/code>\u5f15\u8d77\u7684\u4f9d\u8d56\u6ce8\u5165\u6b67\u4e49\u95ee\u9898\u3002\u5728\u4e00\u4e2a\u63a5\u53e3\u6709\u591a\u4e2a\u5b9e\u73b0\u7c7b\u7684\u60c5\u51b5\u4e0b\uff0cSpring\u9ed8\u8ba4\u4f1a\u9009\u62e9\u5176\u4e2d\u4e00\u4e2a\u8fdb\u884c\u6ce8\u5165\u3002\u5982\u679c\u5f00\u53d1\u8005\u60f3\u8981\u6307\u5b9a\u5177\u4f53\u7684\u5b9e\u73b0\u7c7b\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528<code>@Qualifier<\/code>\u3002<\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-java\">public interface Animal {\n    void makeSound();\n}\n\n@Component(&quot;dog&quot;)\npublic class Dog implements Animal {\n    @Override\n    public void makeSound() {\n        System.out.println(&quot;Woof&quot;);\n    }\n}\n\n@Component(&quot;cat&quot;)\npublic class Cat implements Animal {\n    @Override\n    public void makeSound() {\n        System.out.println(&quot;Meow&quot;);\n    }\n}\n\n@Component\npublic class Zoo {\n    @Autowired\n    @Qualifier(&quot;dog&quot;) \/\/ \u6307\u5b9a\u8981\u6ce8\u5165\u7684Bean\u540d\u79f0\u4e3a &quot;dog&quot;\n    private Animal animal;\n\n    \/\/ 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[&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-11488","post","type-post","status-publish","format-standard","hentry","category-spring"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11488","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=11488"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11488\/revisions"}],"predecessor-version":[{"id":17054,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11488\/revisions\/17054"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=11488"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=11488"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=11488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}