{"id":300947,"date":"2024-05-20T17:55:26","date_gmt":"2024-05-20T09:55:26","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/300947.html"},"modified":"2024-05-20T17:55:47","modified_gmt":"2024-05-20T09:55:47","slug":"autowired-%e5%92%8c-resource-%e6%9c%89%e4%bb%80%e4%b9%88%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/300947.html","title":{"rendered":"Autowired \u548c Resource \u6709\u4ec0\u4e48\u533a\u522b"},"content":{"rendered":"

\"Autowired<\/p>\n

Autowired<\/code>\u548cResource<\/code>\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u5b83\u4eec\u7684\u6ce8\u5165\u65b9\u5f0f\u3001\u6765\u6e90\u548c\u7075\u6d3b\u6027\u3002<\/strong> \u867d\u7136\u4e8c\u8005\u90fd\u7528\u4e8e\u4f9d\u8d56\u6ce8\u5165\uff0c\u4f46Autowired<\/code>\u662fSpring\u7684\u6ce8\u91ca\uff0c\u6309\u7167\u7c7b\u578b\u8fdb\u884c\u81ea\u52a8\u88c5\u914d\u3002\u5982\u679c\u627e\u5230\u591a\u4e2a\u76f8\u540c\u7c7b\u578b\u7684bean\uff0c\u5219\u4f1a\u629b\u51fa\u5f02\u5e38\u3002\u53e6\u4e00\u65b9\u9762\uff0cResource<\/code>\u6ce8\u89e3\u6765\u6e90\u4e8eJavax.annotation\u5305\uff0c\u5b83\u53ef\u4ee5\u901a\u8fc7\u540d\u79f0\u6216\u7c7b\u578b\u6765\u6ce8\u5165\u4f9d\u8d56<\/strong>\uff0c\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u7cbe\u786e\u63a7\u5236\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u6ce8\u5165\u65b9\u5f0f\u7684\u533a\u522b<\/strong><\/h3>\n<\/p>\n

Autowired \u7684\u4f7f\u7528<\/strong><\/h4>\n<\/p>\n

@Autowired<\/code>\u6ce8\u89e3\u53ef\u4ee5\u5e94\u7528\u5728\u5b57\u6bb5\u3001\u6784\u9020\u5668\u3001\u65b9\u6cd5\u4e0a\uff0c\u91c7\u7528\u7684\u662f\u7c7b\u578b\u5339\u914d\u7684\u65b9\u5f0f\u6765\u81ea\u52a8\u6ce8\u5165\u4f9d\u8d56\u3002Spring\u5728\u8fdb\u884c\u81ea\u52a8\u88c5\u914d\u65f6\uff0c\u4f1a\u9996\u5148\u901a\u8fc7\u7c7b\u578b\u53bb\u5bfb\u627e\u5339\u914d\u7684bean\u3002\u5982\u679c\u6709\u591a\u4e2a\u540c\u7c7b\u578b\u7684bean\uff0c\u6b64\u65f6\u5c31\u9700\u8981\u914d\u5408@Qualifier<\/code>\u6ce8\u89e3\u6765\u6307\u5b9a\u5177\u4f53\u7684bean\u540d\u79f0\u4e86\uff0c\u5426\u5219\u4f1a\u629b\u51faNoUniqueBeanDefinitionException<\/code>\u5f02\u5e38\u3002<\/p>\n<\/p>\n

Resource \u7684\u4f7f\u7528<\/strong><\/h4>\n<\/p>\n

@Resource<\/code>\u6ce8\u89e3\u4e3b\u8981\u662f\u901a\u8fc7\u540d\u79f0\u7684\u65b9\u5f0f\u6765\u67e5\u627ebean\uff0c\u5176\u6b21\u624d\u662f\u901a\u8fc7\u7c7b\u578b\u3002\u5b83\u9ed8\u8ba4\u6309\u7167bean\u7684\u540d\u79f0\u8fdb\u884c\u88c5\u914d\u3002\u5982\u679c\u6ca1\u6709\u6307\u5b9a\u4e00\u4e2a\u540d\u79f0\uff0c\u5219\u4f7f\u7528\u5b57\u6bb5\u6216\u8005\u65b9\u6cd5\u7684\u540d\u79f0\u4f5c\u4e3abean\u7684\u540d\u79f0\u53bb\u67e5\u627e\u3002\u8fd9\u6837\u7684\u67e5\u627e\u987a\u5e8f\u7ed9\u4e86\u5f00\u53d1\u8005\u66f4\u7cbe\u786e\u7684\u63a7\u5236\u80fd\u529b\uff0c\u5c24\u5176\u662f\u5728\u5b58\u5728\u591a\u4e2a\u7c7b\u578b\u76f8\u540c\u7684bean\u65f6\u66f4\u52a0\u6709\u6548\u3002\u540c\u65f6\uff0c@Resource<\/code>\u4e5f\u652f\u6301name<\/code>\u548ctype<\/code>\u5c5e\u6027\uff0c\u5141\u8bb8\u66f4\u660e\u786e\u5730\u6307\u5b9a\u8981\u6ce8\u5165\u7684bean\u3002<\/p>\n<\/p>\n

\u4e8c\u3001\u6765\u6e90\u548c\u517c\u5bb9\u6027<\/strong><\/h3>\n<\/p>\n

Autowired \u7684\u6765\u6e90<\/strong><\/h4>\n<\/p>\n

@Autowired<\/code>\u662fSpring\u6846\u67b6\u7279\u6709\u7684\u6ce8\u89e3\uff0c\u5b83\u662fSpring\u6846\u67b6\u4e2d\u4f9d\u8d56\u6ce8\u5165\u7684\u6838\u5fc3\u6ce8\u89e3\u3002\u4f7f\u7528@Autowired\u65f6\uff0c\u9700\u8981\u786e\u4fddSpring\u6846\u67b6\u7684\u7248\u672c\u652f\u6301\u3002\u7531\u4e8e\u5b83\u662fSpring\u6846\u67b6\u7684\u4e00\u90e8\u5206\uff0c\u56e0\u6b64\u5728\u975eSpring\u7ba1\u7406\u7684\u5bf9\u8c61\u4e2d\u4e0d\u80fd\u4f7f\u7528@Autowired<\/code>\u6ce8\u89e3\u3002<\/p>\n<\/p>\n

Resource \u7684\u6765\u6e90<\/strong><\/h4>\n<\/p>\n

\u4e0e@Autowired<\/code>\u4e0d\u540c\uff0c@Resource<\/code>\u6ce8\u89e3\u5e76\u975eSpring\u4e13\u6709\uff0c\u800c\u662f\u6765\u6e90\u4e8eJava\u6807\u51c6\uff08javax.annotation.Resource\uff09\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4e0d\u4ec5\u4ec5\u5c40\u9650\u4e8eSpring\u6846\u67b6\u3002\u8fd9\u79cd\u6765\u6e90\u4f7f\u5f97@Resource<\/code>\u6ce8\u89e3\u5728\u5e94\u7528\u4e8e\u4e0d\u540c\u7684Java EE\u9879\u76ee\u4e2d\u5177\u6709\u66f4\u597d\u7684\u517c\u5bb9\u6027\u3002\u5373\u4f7f\u5728\u4e0d\u4f7f\u7528Spring\u6846\u67b6\u7684\u9879\u76ee\u4e2d\uff0c\u4e5f\u53ef\u4ee5\u91c7\u7528@Resource<\/code>\u8fdb\u884c\u4f9d\u8d56\u6ce8\u5165\u3002<\/p>\n<\/p>\n

\u4e09\u3001\u517c\u5bb9\u6027\u4e0e\u5e94\u7528\u573a\u666f<\/strong><\/h3>\n<\/p>\n

\u5e94\u7528\u573a\u666f\u6bd4\u8f83<\/strong><\/h4>\n<\/p>\n

@Autowired<\/code>\u56e0\u5176\u7b80\u5355\u4fbf\u5229\uff0c\u5728Spring\u9879\u76ee\u4e2d\u88ab\u5e7f\u6cdb\u4f7f\u7528\u3002\u7279\u522b\u662f\u5728\u5904\u7406\u591a\u4e2a\u5b9e\u73b0\u540c\u4e00\u63a5\u53e3\u7684bean\u65f6\uff0c\u7ed3\u5408@Qualifier<\/code>\u6ce8\u89e3\uff0c\u80fd\u591f\u975e\u5e38\u7075\u6d3b\u5730\u6307\u5b9a\u8981\u6ce8\u5165\u7684\u5b9e\u4f8b\u3002\u5bf9\u4e8e\u5b8c\u5168\u7531Spring\u7ba1\u7406\u7684\u9879\u76ee\uff0c@Autowired<\/code>\u662f\u4e00\u4e2a\u975e\u5e38\u597d\u7684\u9009\u62e9\u3002<\/strong><\/p>\n<\/p>\n

@Resource<\/code>\u6ce8\u89e3\u7684\u4f7f\u7528\u66f4\u9002\u5408\u90a3\u4e9b\u9700\u8981\u8de8\u5e73\u53f0\u7684\u5e94\u7528\uff0c\u6216\u8005\u662f\u5bf9\u4f9d\u8d56\u6ce8\u5165\u7684\u7cbe\u786e\u6027\u6709\u8f83\u9ad8\u8981\u6c42\u7684\u573a\u666f\u3002\u7531\u4e8e\u5b83\u53ef\u4ee5\u901a\u8fc7\u540d\u79f0\u6307\u5b9a\u6ce8\u5165\u7684bean\uff0c\u5728\u6709\u591a\u4e2a\u540c\u7c7b\u578bbean\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u51cf\u5c11\u6b67\u4e49\u3002\u5f53\u9879\u76ee\u9700\u8981\u5728\u4e0d\u540c\u7684Java EE\u73af\u5883\u4e0b\u8fd0\u884c\uff0c\u6216\u8005\u6839\u636e\u540d\u79f0\u6765\u6ce8\u5165\u4e0d\u540c\u5b9e\u4f8b\u65f6\uff0c@Resource<\/code>\u53d8\u6210\u4e86\u66f4\u5408\u9002\u7684\u9009\u62e9\u3002<\/strong><\/p>\n<\/p>\n

\u9009\u62e9\u7684\u4f9d\u636e<\/strong><\/h4>\n<\/p>\n

\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u9009\u62e9@Autowired<\/code>\u8fd8\u662f@Resource<\/code>\u4e3b\u8981\u53d6\u51b3\u4e8e\u9879\u76ee\u7684\u5177\u4f53\u9700\u6c42\u3001\u56e2\u961f\u7684\u504f\u597d\u4ee5\u53ca\u9879\u76ee\u8fd0\u884c\u7684\u73af\u5883\u3002\u91cd\u8981\u7684\u662f\u7406\u89e3\u4e8c\u8005\u7684\u4e0d\u540c\u4e4b\u5904\uff0c\u4ee5\u4fbf\u6839\u636e\u5177\u4f53\u60c5\u51b5\u505a\u51fa\u5408\u9002\u7684\u9009\u62e9\u3002\u65e0\u8bba\u9009\u62e9\u54ea\u4e2a\uff0c\u91cd\u8981\u7684\u662f\u4fdd\u8bc1\u4ee3\u7801\u7684\u6e05\u6670\u6027\u548c\u7ef4\u62a4\u6027\uff0c\u786e\u4fdd\u4f9d\u8d56\u6ce8\u5165\u7684\u51c6\u786e\u6027\u548c\u9ad8\u6548\u6027\u3002<\/strong><\/p>\n<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

1. Autowired\u548cResource\u7684\u4f7f\u7528\u65b9\u5f0f\u6709\u4f55\u533a\u522b?<\/strong><\/p>\n

Autowired\u548cResource\u90fd\u662f\u7528\u4e8e\u4f9d\u8d56\u6ce8\u5165\u7684\u6ce8\u89e3\uff0c\u4f46\u5728\u4f7f\u7528\u65b9\u5f0f\u4e0a\u5b58\u5728\u4e00\u4e9b\u533a\u522b\u3002\u4f7f\u7528Autowired\u6ce8\u89e3\u65f6\uff0c\u53ef\u4ee5\u76f4\u63a5\u6807\u6ce8\u5728\u5b57\u6bb5\u3001\u6784\u9020\u51fd\u6570\u3001Setter\u65b9\u6cd5\u4e0a\uff0c\u800c\u4f7f\u7528Resource\u6ce8\u89e3\u65f6\uff0c\u5219\u53ea\u80fd\u6807\u6ce8\u5728\u5b57\u6bb5\u4e0a\u3002\u8fd9\u610f\u5473\u7740\u5728\u4f7f\u7528Autowired\u65f6\uff0c\u53ef\u4ee5\u5728\u4efb\u4f55\u5730\u65b9\u5b9e\u73b0\u6ce8\u5165\uff0c\u800c\u4f7f\u7528Resource\u53ea\u80fd\u5728\u5b57\u6bb5\u4e0a\u5b9e\u73b0\u6ce8\u5165\u3002<\/p>\n

2. Autowired\u548cResource\u7684\u6ce8\u5165\u7c7b\u578b\u6709\u4f55\u533a\u522b?<\/strong><\/p>\n

\u5f53\u4f7f\u7528Autowired\u6ce8\u89e3\u65f6\uff0c\u9ed8\u8ba4\u6309\u7167\u7c7b\u578b\u8fdb\u884c\u6ce8\u5165\u3002\u5982\u679c\u6709\u591a\u4e2a\u5339\u914d\u7684bean\u5b58\u5728\uff0cSpring\u4f1a\u5c1d\u8bd5\u6309\u7167\u5b57\u6bb5\u540d\u6216\u8005Bean ID\u6765\u9009\u62e9\u5408\u9002\u7684bean\u3002\u800c\u4f7f\u7528Resource\u6ce8\u89e3\u65f6\uff0c\u9ed8\u8ba4\u6309\u7167\u5b57\u6bb5\u540d\u8fdb\u884c\u6ce8\u5165\u3002\u5982\u679c\u5b58\u5728\u591a\u4e2a\u540c\u7c7b\u578b\u7684bean\uff0c\u9664\u975e\u4f7f\u7528name\u5c5e\u6027\u6307\u5b9a\u5177\u4f53\u7684bean\u540d\u79f0\uff0c\u5426\u5219\u4f1a\u629b\u51fa\u5f02\u5e38\u3002<\/p>\n

3. Autowired\u548cResource\u7684\u9002\u7528\u573a\u666f\u6709\u4f55\u533a\u522b?<\/strong><\/p>\n

Autowired\u6ce8\u89e3\u66f4\u9002\u7528\u4e8eSpring\u6846\u67b6\u4e2d\uff0c\u901a\u8fc7\u6ce8\u89e3\u81ea\u52a8\u88c5\u914dbean\u7684\u573a\u666f\u3002\u5b83\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u7075\u6d3b\u6027\u548c\u81ea\u52a8\u5316\u7684\u7279\u6027\uff0c\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u5730\u65b9\u8fdb\u884c\u6ce8\u5165\uff0c\u5e76\u4e14\u652f\u6301\u6309\u7c7b\u578b\u6ce8\u5165\u3002Resource\u6ce8\u89e3\u5219\u66f4\u9002\u7528\u4e8eJava EE\u89c4\u8303\u4e2d\uff0c\u901a\u8fc7\u6ce8\u89e3\u6ce8\u5165\u8d44\u6e90\u7684\u573a\u666f\u3002\u5b83\u5728\u6ce8\u5165\u65b9\u5f0f\u548c\u9002\u7528\u8303\u56f4\u4e0a\u76f8\u5bf9\u6709\u4e00\u4e9b\u9650\u5236\uff0c\u4f46\u662f\u5728Java EE\u73af\u5883\u4e0b\u4f7f\u7528\u66f4\u52a0\u65b9\u4fbf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Autowired\u548cResource\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u5b83\u4eec\u7684\u6ce8\u5165\u65b9\u5f0f\u3001\u6765\u6e90\u548c\u7075\u6d3b\u6027\u3002 \u867d\u7136\u4e8c\u8005\u90fd\u7528\u4e8e\u4f9d\u8d56\u6ce8\u5165\uff0c\u4f46Au […]","protected":false},"author":3,"featured_media":300980,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/300947"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=300947"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/300947\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/300980"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=300947"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=300947"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=300947"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}