{"id":436,"date":"2023-10-29T16:41:43","date_gmt":"2023-10-29T08:41:43","guid":{"rendered":"https:\/\/www.talktop.cn\/?p=436"},"modified":"2025-01-01T14:29:09","modified_gmt":"2025-01-01T06:29:09","slug":"spring%e4%b8%ad%e7%9a%84factorybean%e8%af%a6%e7%bb%86%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.talktop.cn\/?p=436","title":{"rendered":"Spring\u4e2d\u7684FactoryBean\u8be6\u7ec6\u89e3\u6790"},"content":{"rendered":"\n<p>\u5728Spring\u6846\u67b6\u4e2d\uff0c<code>FactoryBean<\/code>\u662f\u4e00\u4e2a\u7279\u6b8a\u7684Bean\uff0c\u5b83\u7684\u4e3b\u8981\u76ee\u7684\u662f\u4ea7\u751f\u5176\u4ed6Bean\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8<code>FactoryBean<\/code>\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u7ed3\u5408\u6e90\u7801\u5206\u6790\uff0c\u5e76\u63d0\u4f9b\u4e09\u4e2a\u5177\u4f53\u7684\u4f7f\u7528\u573a\u666f\u548c\u793a\u4f8b\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e00\u3001 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class=\"wp-block-heading\">\u573a\u666f1\uff1a\u521b\u5efa\u590d\u6742\u7684Bean<\/h6>\n\n\n\n<p>\u5f53Bean\u7684\u521b\u5efa\u9700\u8981\u591a\u4e2a\u6b65\u9aa4\u6216\u521d\u59cb\u5316\u903b\u8f91\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528<code>FactoryBean<\/code>\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-white-color has-black-background-color has-text-color has-background\"><code>public class ComplexBeanFactory implements FactoryBean {\n    @Override\n    public ComplexBean getObject() {\n        ComplexBean bean = new ComplexBean();\n        \/\/ ... \u590d\u6742\u7684\u521d\u59cb\u5316\u903b\u8f91\n        return bean;\n    }\n    \/\/ ... \u5176\u4ed6\u65b9\u6cd5\n}<\/code><\/pre>\n\n\n\n<h6 class=\"wp-block-heading\">\u573a\u666f2\uff1a\u521b\u5efa\u7b2c\u4e09\u65b9\u5e93\u7684Bean<\/h6>\n\n\n\n<p>\u5f53\u7b2c\u4e09\u65b9\u5e93\u7684\u7c7b\u6ca1\u6709\u9ed8\u8ba4\u7684\u65e0\u53c2\u6570\u6784\u9020\u51fd\u6570\uff0c\u6216\u9700\u8981\u7279\u6b8a\u7684\u521d\u59cb\u5316\u903b\u8f91\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528<code>FactoryBean<\/code>\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-white-color has-black-background-color has-text-color has-background\"><code>public class ThirdPartyBeanFactory implements FactoryBean {\n    @Override\n    public ThirdPartyBean getObject() {\n        return ThirdPartyLibrary.createBean();\n    }\n    \/\/ ... \u5176\u4ed6\u65b9\u6cd5\n}<\/code><\/pre>\n\n\n\n<h6 class=\"wp-block-heading\">\u573a\u666f3\uff1a\u6839\u636e\u6761\u4ef6\u52a8\u6001\u9009\u62e9Bean<\/h6>\n\n\n\n<p>\u5f53\u9700\u8981\u6839\u636e\u8fd0\u884c\u65f6\u7684\u6761\u4ef6\u52a8\u6001\u9009\u62e9\u8981\u521b\u5efa\u7684Bean\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528<code>FactoryBean<\/code>\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-white-color has-black-background-color has-text-color has-background\"><code>public class ConditionalBeanFactory implements FactoryBean {\n    @Override\n    public ConditionalBean getObject() {\n        if (someCondition()) {\n            return new BeanTypeA();\n        } else {\n            return new BeanTypeB();\n        }\n    }\n    \/\/ ... \u5176\u4ed6\u65b9\u6cd5\n}<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">4. \u7ed3\u8bba<\/h5>\n\n\n\n<p><code>FactoryBean<\/code>\u63d0\u4f9b\u4e86\u4e00\u79cd\u7075\u6d3b\u7684\u65b9\u5f0f\u6765\u521b\u5efa\u548c\u521d\u59cb\u5316Bean\u3002\u901a\u8fc7\u7406\u89e3\u5176\u5de5\u4f5c\u539f\u7406\u548c\u7ed3\u5408\u5b9e\u9645\u7684\u4f7f\u7528\u573a\u666f\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u5229\u7528\u8fd9\u4e2a\u7279\u6027\uff0c\u7b80\u5316Spring\u914d\u7f6e\u5e76\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728Spring\u6846\u67b6\u4e2d\uff0cFactoryBean\u662f\u4e00\u4e2a\u7279\u6b8a\u7684Bean\uff0c\u5b83\u7684\u4e3b\u8981\u76ee\u7684\u662f\u4ea7\u751f\u5176\u4ed6Bean\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[118,59],"tags":[27,16],"class_list":["post-436","post","type-post","status-publish","format-standard","hentry","category-118","category-59","tag-spring","tag-java"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Spring\u4e2d\u7684FactoryBean\u8be6\u7ec6\u89e3\u6790<\/title>\n<meta name=\"description\" content=\"\u5728Spring\u6846\u67b6\u4e2d\uff0cFactoryBean\u662f\u4e00\u4e2a\u7279\u6b8a\u7684Bean\uff0c\u5b83\u7684\u4e3b\u8981\u76ee\u7684\u662f\u4ea7\u751f\u5176\u4ed6Bean\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8FactoryBean\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u7ed3\u5408\u6e90\u7801\u5206\u6790\uff0c\u5e76\u63d0\u4f9b\u4e09\u4e2a\u5177\u4f53\u7684\u4f7f\u7528\u573a\u666f\u548c\u793a\u4f8b\u3002\" 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