{"id":307487,"date":"2024-05-20T20:36:39","date_gmt":"2024-05-20T12:36:39","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/307487.html"},"modified":"2024-05-20T20:37:03","modified_gmt":"2024-05-20T12:37:03","slug":"%e5%a6%82%e4%bd%95%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3-java-%e7%9a%84-spring-%e6%a1%86%e6%9e%b6%e4%b8%ad%e7%9a%84-ioc-%e5%ae%b9%e5%99%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/307487.html","title":{"rendered":"\u5982\u4f55\u6df1\u5165\u7406\u89e3  Java \u7684 Spring  \u6846\u67b6\u4e2d\u7684 IOC  \u5bb9\u5668"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/26223832\/86300fdf-8fee-4cea-a246-14fc016ef520.webp\" alt=\"\u5982\u4f55\u6df1\u5165\u7406\u89e3  Java \u7684 Spring  \u6846\u67b6\u4e2d\u7684 IOC  \u5bb9\u5668\" 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Control\uff0c\u63a7\u5236\u53cd\u8f6c\uff09\u7684\u57fa\u672c\u6982\u5ff5\u3001Spring\u7684IOC\u5bb9\u5668\u5982\u4f55\u5de5\u4f5c\u3001Bean\u7684\u751f\u547d\u5468\u671f\u3001\u4f9d\u8d56\u6ce8\u5165\uff08DI\uff09\u7684\u539f\u7406\u4e0e\u5e94\u7528\uff0c\u4ee5\u53caIOC\u5bb9\u5668\u5728\u9879\u76ee\u5f00\u53d1\u4e2d\u7684\u5177\u4f53\u8fd0\u7528<\/strong>\u3002\u638c\u63e1\u8fd9\u4e9b\u8981\u70b9\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u597d\u5730\u5229\u7528Spring\u6846\u67b6\uff0c\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u548c\u9879\u76ee\u8d28\u91cf\u3002\u7279\u522b\u662f<strong>\u4f9d\u8d56\u6ce8\u5165\uff08DI\uff09\u7684\u539f\u7406\u4e0e\u5e94\u7528<\/strong>\uff0c\u5b83\u662fIOC\u7684\u4e00\u79cd\u5b9e\u73b0\u65b9\u5f0f\uff0c\u901a\u8fc7\u89e3\u8026\u6765\u589e\u52a0\u7a0b\u5e8f\u7684\u7075\u6d3b\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002Spring\u6846\u67b6\u63d0\u4f9b\u4e86\u591a\u79cd\u4f9d\u8d56\u6ce8\u5165\u7684\u65b9\u5f0f\uff0c\u7406\u89e3\u8fd9\u4e9b\u65b9\u5f0f\u5bf9\u4e8e\u6709\u6548\u5730\u4f7f\u7528Spring IOC\u5bb9\u5668\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001IOC\u7684\u57fa\u672c\u6982\u5ff5<\/h3>\n<\/p>\n<p><p>IOC\uff0c\u5373\u63a7\u5236\u53cd\u8f6c\uff0c\u662f\u4e00\u79cd\u8bbe\u8ba1\u539f\u5219\uff0c\u7528\u4e8e\u51cf\u5c11\u8ba1\u7b97\u673a\u4ee3\u7801\u4e4b\u95f4\u7684\u8026\u5408\u5ea6\u3002\u5728\u4f20\u7edf\u7684\u7f16\u7a0b\u5b9e\u8df5\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u5bf9\u8c61\u7684\u804c\u8d23\u901a\u5e38\u7531\u6211\u4eec\u81ea\u5df1\u7684\u4ee3\u7801\u76f4\u63a5\u627f\u62c5\uff0c\u8fd9\u5bfc\u81f4\u4e86\u9ad8\u8026\u5408\u548c\u96be\u4ee5\u7ef4\u62a4\u7684\u4ee3\u7801\u3002IOC\u7684\u601d\u60f3\u662f\u5c06\u5bf9\u8c61\u7684\u521b\u5efa\u548c\u7ba1\u7406\u4ea4\u7ed9\u5916\u90e8\u5bb9\u5668\uff0c\u5b9e\u73b0\u5bf9\u8c61\u4e4b\u95f4\u7684\u89e3\u8026\u3002<\/p>\n<\/p>\n<p><p>Spring\u6846\u67b6\u7684IOC\u5bb9\u5668\u8d1f\u8d23\u521d\u59cb\u5316\u3001\u914d\u7f6e\u548c\u7ec4\u88c5\u5bf9\u8c61\u3002\u901a\u8fc7\u914d\u7f6e\u65b9\u5f0f\u544a\u8bc9IOC\u5bb9\u5668\u9700\u8981\u7ba1\u7406\u54ea\u4e9b\u5bf9\u8c61\u4ee5\u53ca\u5b83\u4eec\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\uff0c\u4f7f\u5f97\u4ee3\u7801\u53d8\u5f97\u66f4\u52a0\u6e05\u6670\uff0c\u4e5f\u66f4\u5bb9\u6613\u6d4b\u8bd5\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001Spring\u7684IOC\u5bb9\u5668\u5982\u4f55\u5de5\u4f5c<\/h3>\n<\/p>\n<p><p>Spring\u6846\u67b6\u63d0\u4f9b\u4e86\u4e24\u79cd\u7c7b\u578b\u7684IOC\u5bb9\u5668\uff0c\u5206\u522b\u662fBeanFactory\u548cApplicationContext\u3002<strong>BeanFactory<\/strong> \u662f\u6700\u7b80\u5355\u7684\u5bb9\u5668\uff0c\u63d0\u4f9b\u57fa\u672c\u7684DI\u3002<strong>ApplicationContext<\/strong> \u662fBeanFactory\u7684\u5b50\u63a5\u53e3\uff0c\u6dfb\u52a0\u4e86\u66f4\u591a\u4f01\u4e1a\u6240\u9700\u7684\u529f\u80fd\uff0c\u6bd4\u5982\u4e8b\u4ef6\u4f20\u64ad\u3001\u56fd\u9645\u5316\u6d88\u606f\u5904\u7406\u7b49\u3002<\/p>\n<\/p>\n<p><p>\u5f53\u5e94\u7528\u542f\u52a8\u65f6\uff0cSpring IOC\u5bb9\u5668\u52a0\u8f7d\u914d\u7f6e\u6587\u4ef6\u6216\u6ce8\u89e3\uff0c\u89e3\u6790\u91cc\u9762\u5b9a\u4e49\u7684Bean\uff0c\u5e76\u6784\u5efaBean\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\u3002\u5bb9\u5668\u901a\u8fc7DI\u628a\u6240\u9700\u4f9d\u8d56\u6ce8\u5165\u5230\u7ec4\u4ef6\u4e2d\uff0c\u8fd9\u6837\u5c31\u5b8c\u6210\u4e86\u5bf9\u8c61\u7684\u521b\u5efa\u548c\u7ec4\u88c5\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001Bean\u7684\u751f\u547d\u5468\u671f<\/h3>\n<\/p>\n<p><p>\u4e86\u89e3Bean\u7684\u751f\u547d\u5468\u671f\u662f\u6df1\u5165\u7406\u89e3Spring IOC\u7684\u5173\u952e\u3002Bean\u7684\u751f\u547d\u5468\u671f\u4ece\u5bb9\u5668\u542f\u52a8\uff0c\u5230Bean\u7684\u521b\u5efa\u3001\u4f9d\u8d56\u6ce8\u5165\u3001\u521d\u59cb\u5316\uff0c\u5230\u5e94\u7528\u8fd0\u884c\u4e2d\u7684\u4f7f\u7528\uff0c\u6700\u540e\u5230\u5bb9\u5668\u5173\u95ed\u65f6Bean\u7684\u9500\u6bc1\uff0c\u6bcf\u4e00\u4e2a\u9636\u6bb5\u90fd\u6709\u5bf9\u5e94\u7684\u5904\u7406\u8fc7\u7a0b\u548c\u6269\u5c55\u70b9\u3002<\/p>\n<\/p>\n<p><p>Spring\u5bb9\u5668\u5141\u8bb8\u901a\u8fc7\u5b9e\u73b0\u7279\u5b9a\u63a5\u53e3\u6216\u58f0\u660e\u6ce8\u89e3\u6765\u81ea\u5b9a\u4e49Bean\u7684\u521d\u59cb\u5316\u548c\u9500\u6bc1\u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7\u5b9e\u73b0<code>InitializingBean<\/code>\u548c<code>DisposableBean<\/code>\u63a5\u53e3\uff0c\u6216\u4f7f\u7528<code>@PostConstruct<\/code>\u548c<code>@PreDestroy<\/code>\u6ce8\u89e3\u6765\u5b9a\u5236\u521d\u59cb\u5316\u548c\u9500\u6bc1\u903b\u8f91\u3002\u8fd9\u4e3aBean\u7684\u7ba1\u7406\u63d0\u4f9b\u4e86\u7075\u6d3b\u6027\u548c\u63a7\u5236\u6027\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u4f9d\u8d56\u6ce8\u5165\uff08DI\uff09\u7684\u539f\u7406\u4e0e\u5e94\u7528<\/h3>\n<\/p>\n<p><p>\u4f9d\u8d56\u6ce8\u5165\u662fIOC\u7684\u5b9e\u73b0\u65b9\u5f0f\u4e4b\u4e00\uff0c\u5b83\u7684\u6838\u5fc3\u601d\u60f3\u662f\u7531\u5916\u90e8\u5bb9\u5668\u52a8\u6001\u5730\u5c06\u4f9d\u8d56\u5173\u7cfb\u6ce8\u5165\u5230\u5bf9\u8c61\u4e2d\uff0c\u800c\u4e0d\u662f\u7531\u5bf9\u8c61\u81ea\u884c\u63a7\u5236\u3002Spring\u652f\u6301\u4e09\u79cd\u4e3b\u8981\u7684DI\u65b9\u5f0f\uff1a<strong>\u6784\u9020\u5668\u6ce8\u5165\u3001Setter\u6ce8\u5165\u3001\u4ee5\u53ca\u57fa\u4e8e\u6ce8\u89e3\u7684\u81ea\u52a8\u6ce8\u5165<\/strong>\u3002<\/p>\n<\/p>\n<p><p>\u6784\u9020\u5668\u6ce8\u5165\u4fdd\u8bc1\u4e86\u6240\u9700\u4f9d\u8d56\u7684\u4e0d\u53ef\u53d8\u6027\u548c\u5fc5\u8981\u6027\uff0c\u9002\u7528\u4e8e\u5fc5\u987b\u4f9d\u8d56\u7684\u573a\u5408\u3002Setter\u6ce8\u5165\u5728\u5bf9\u8c61\u6784\u5efa\u540e\u901a\u8fc7Setter\u65b9\u6cd5\u6ce8\u5165\u4f9d\u8d56\uff0c\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u7075\u6d3b\u6027\u3002\u800c\u57fa\u4e8e\u6ce8\u89e3\u7684\u81ea\u52a8\u6ce8\u5165\uff08\u4f8b\u5982\uff0c<code>@Autowired<\/code>\uff09\uff0c\u5219\u5927\u5927\u7b80\u5316\u4e86\u914d\u7f6e\uff0c\u63d0\u5347\u4e86\u5f00\u53d1\u6548\u7387\u3002<\/p>\n<\/p>\n<p><h3>\u4e94\u3001IOC\u5bb9\u5668\u5728\u9879\u76ee\u5f00\u53d1\u4e2d\u7684\u5177\u4f53\u8fd0\u7528<\/h3>\n<\/p>\n<p><p>\u5728\u5b9e\u9645\u9879\u76ee\u5f00\u53d1\u4e2d\uff0c\u6df1\u5165\u7406\u89e3\u548c\u6b63\u786e\u4f7f\u7528Spring IOC\u5bb9\u5668\u53ef\u4ee5\u6781\u5927\u63d0\u5347\u9879\u76ee\u7684\u8d28\u91cf\u548c\u7ef4\u62a4\u6027\u3002\u4f8b\u5982\uff0c\u901a\u8fc7\u5408\u7406\u5229\u7528\u4f9d\u8d56\u6ce8\u5165\u548cBean\u7684\u751f\u547d\u5468\u671f\u7ba1\u7406\uff0c\u53ef\u4ee5\u521b\u5efa\u9ad8\u6548\u7075\u6d3b\u7684\u4e1a\u52a1Bean\uff0c\u7b80\u5316\u4e1a\u52a1\u903b\u8f91\u7684\u5b9e\u73b0\u3002<\/p>\n<\/p>\n<p><p>\u6b64\u5916\uff0c\u5229\u7528IOC\u5bb9\u5668\u8fdb\u884c\u5bf9\u8c61\u7ba1\u7406\uff0c\u8fd8\u80fd\u5e26\u6765\u66f4\u597d\u7684\u6d4b\u8bd5\u6027\u3002\u4f9d\u8d56\u6ce8\u5165\u4f7f\u5f97\u5728\u5355\u5143\u6d4b\u8bd5\u65f6\u53ef\u4ee5\u8f7b\u677e\u5730\u66ff\u6362\u4f9d\u8d56\u7ec4\u4ef6\uff0c\u65e0\u9700\u4fee\u6539\u4ee3\u7801\u5c31\u80fd\u8fdb\u884c\u5404\u79cd\u573a\u666f\u7684\u6d4b\u8bd5\uff0c\u4fdd\u8bc1\u4e86\u4ee3\u7801\u8d28\u91cf\u3002<\/p>\n<\/p>\n<p><p>\u603b\u4e4b\uff0cSpring\u7684IOC\u5bb9\u5668\u4e0d\u4ec5\u4ec5\u662f\u4e00\u79cd\u6280\u672f\u5b9e\u73b0\uff0c\u66f4\u662f\u4e00\u79cd\u7f16\u7a0b\u7406\u5ff5\u7684\u4f53\u73b0\u3002\u6df1\u5165\u638c\u63e1\u548c\u8fd0\u7528\u5b83\uff0c\u5bf9\u4e8e\u63d0\u9ad8Java\u5e94\u7528\u7684\u8bbe\u8ba1\u548c\u5f00\u53d1\u6c34\u5e73\u6709\u7740\u91cd\u8981\u7684\u610f\u4e49\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>1. 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