{"id":299949,"date":"2024-05-20T17:30:09","date_gmt":"2024-05-20T09:30:09","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/299949.html"},"modified":"2024-05-20T17:30:20","modified_gmt":"2024-05-20T09:30:20","slug":"springboot-%e8%87%aa%e5%8a%a8%e9%85%8d%e7%bd%ae%e7%9a%84%e5%8e%9f%e7%90%86%e6%98%af%e4%bb%80%e4%b9%88-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/299949.html","title":{"rendered":"springboot \u81ea\u52a8\u914d\u7f6e\u7684\u539f\u7406\u662f\u4ec0\u4e48"},"content":{"rendered":"

\"springboot<\/p>\n

Spring Boot \u7684\u81ea\u52a8\u914d\u7f6e\u539f\u7406<\/strong>\u4e3b\u8981\u4f9d\u8d56\u4e8e\u4e24\u4e2a\u6838\u5fc3\u673a\u5236\uff1a@Conditional\u6ce8\u89e3\u548c@EnableAutoConfiguration\u6ce8\u89e3<\/strong>\u3002\u8fd9\u4e24\u8005\u5171\u540c\u5de5\u4f5c\uff0c\u4f7f\u5f97Spring Boot\u53ef\u4ee5\u6839\u636e\u5e94\u7528\u7684\u4f9d\u8d56\u60c5\u51b5\u667a\u80fd\u5730\u914d\u7f6e\u9879\u76ee\u3002\u5176\u4e2d\uff0c@Conditional\u6ce8\u89e3\u80fd\u6839\u636e\u7279\u5b9a\u7684\u6761\u4ef6\u6765\u5224\u65ad\u4e00\u4e2a\u914d\u7f6e\u662f\u5426\u5e94\u8be5\u751f\u6548\u3002\u8fd9\u79cd\u673a\u5236\u8ba9Spring Boot\u80fd\u591f\u505a\u51fa\u7075\u6d3b\u7684\u5224\u65ad\uff0c\u4f8b\u5982\uff0c\u53ea\u6709\u5f53classpath\u4e2d\u5b58\u5728\u7279\u5b9a\u7684\u7c7b\u65f6\uff0c\u76f8\u5e94\u7684\u81ea\u52a8\u914d\u7f6e\u624d\u4f1a\u751f\u6548\u3002\u8fd9\u5927\u5927\u7b80\u5316\u4e86\u914d\u7f6e\uff0c\u63d0\u9ad8\u4e86\u5f00\u53d1\u6548\u7387\u3002<\/p>\n<\/p>\n

\u4e00\u3001@ENABLEAUTOCONFIGURATION\u6ce8\u89e3<\/h3>\n<\/p>\n

\u57fa\u672c\u539f\u7406<\/h4>\n<\/p>\n

@EnableAutoConfiguration\u6ce8\u89e3\u662fSpring Boot\u81ea\u52a8\u914d\u7f6e\u7684\u5f00\u5173\u3002\u901a\u8fc7@EnableAutoConfiguration\uff0cSpring Boot\u53ef\u4ee5\u6839\u636e\u6dfb\u52a0\u7684jar\u4f9d\u8d56\u81ea\u52a8\u914d\u7f6e\u9879\u76ee\u3002\u4f8b\u5982\uff0c\u5982\u679cclasspath\u4e2d\u6709spring-boot-starter-web\uff0cSpring Boot\u4f1a\u81ea\u52a8\u6dfb\u52a0Tomcat\u548cSpringMVC\u7684\u914d\u7f6e\u3002\u8fd9\u4e2a\u6ce8\u89e3\u80cc\u540e\u7684\u5b9e\u73b0\u673a\u5236\u662fSpring Factories Loader\u6280\u672f\uff0c\u5177\u4f53\u662f\u901a\u8fc7\u52a0\u8f7dMETA-INF\/spring.factories\u6587\u4ef6\u4e2d\u7684\u914d\u7f6e\u6765\u5b9e\u73b0\u7684\u3002<\/p>\n<\/p>\n

\u5b9e\u73b0\u8fc7\u7a0b<\/h4>\n<\/p>\n

\u5f53\u5e94\u7528\u542f\u52a8\u65f6\uff0cSpring\u6846\u67b6\u4f1a\u8bfb\u53d6\u6bcf\u4e2ajar\u5305\u4e0bMETA-INF\/spring.factories\u6587\u4ef6\u5185\u5bb9\uff0c\u641c\u5bfb\u6240\u6709\u914d\u7f6e\u4e86\u7684\u81ea\u52a8\u914d\u7f6e\u7c7b\uff0c\u5e76\u6839\u636e\u6761\u4ef6\u9009\u62e9\u6027\u5730\u52a0\u8f7d\u5b83\u4eec\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u7531\u591a\u4e2a@Conditional\u6d3e\u751f\u6ce8\u89e3\u5171\u540c\u5b8c\u6210\uff0c\u6bd4\u5982@ConditionalOnClass\u3001@ConditionalOnBean\u7b49\uff0c\u5b83\u4eec\u786e\u4fdd\u53ea\u6709\u5728\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u65f6\uff0c\u76f8\u5e94\u7684\u81ea\u52a8\u914d\u7f6e\u624d\u4f1a\u88ab\u5e94\u7528\u3002<\/p>\n<\/p>\n

\u4e8c\u3001@CONDITIONAL\u6ce8\u89e3<\/h3>\n<\/p>\n

\u5de5\u4f5c\u539f\u7406<\/h4>\n<\/p>\n

@Conditional\u6ce8\u89e3\u8ba9Spring Boot\u7684\u81ea\u52a8\u914d\u7f6e\u5177\u6709\u6761\u4ef6\u5224\u65ad\u80fd\u529b\u3002\u5b83\u662f\u4e00\u7ec4@Conditional\u6d3e\u751f\u6ce8\u89e3\u7684\u603b\u62ec\uff0c\u8fd9\u4e9b\u6d3e\u751f\u6ce8\u89e3\u5141\u8bb8Spring Boot\u6839\u636e\u5e94\u7528\u7684\u5f53\u524d\u72b6\u6001\u6765\u51b3\u5b9a\u7279\u5b9a\u914d\u7f6e\u662f\u5426\u5e94\u8be5\u88ab\u6fc0\u6d3b\u3002\u4f8b\u5982\uff0c@ConditionalOnJava\u53ef\u4ee5\u6839\u636eJVM\u7248\u672c\u6765\u51b3\u5b9a\u662f\u5426\u52a0\u8f7d\u914d\u7f6e\u3002<\/p>\n<\/p>\n

\u5e94\u7528\u793a\u4f8b<\/h4>\n<\/p>\n

\u5728Spring Boot\u7684\u81ea\u52a8\u914d\u7f6e\u5b9e\u73b0\u4e2d\uff0c@Conditional\u6ce8\u89e3\u6781\u5176\u91cd\u8981\u3002\u4f8b\u5982\uff0c@ConditionalOnWebApplication\u6ce8\u89e3\u610f\u5473\u7740\u53ea\u6709\u5f53\u5e94\u7528\u4e3aweb\u5e94\u7528\u65f6\u76f8\u5e94\u7684\u914d\u7f6e\u624d\u4f1a\u751f\u6548\u3002\u8fd9\u79cd\u673a\u5236\u6781\u5927\u63d0\u5347\u4e86Spring Boot\u7684\u7075\u6d3b\u6027\u548c\u53ef\u7528\u6027\uff0c\u8ba9\u5f00\u53d1\u8005\u53ef\u4ee5\u66f4\u52a0\u4e13\u6ce8\u4e8e\u4e1a\u52a1\u529f\u80fd\u7684\u5f00\u53d1\u3002<\/p>\n<\/p>\n

\u4e09\u3001\u81ea\u52a8\u914d\u7f6e\u8fc7\u7a0b\u7684\u6df1\u5165\u5206\u6790<\/h3>\n<\/p>\n

\u81ea\u52a8\u914d\u7f6e\u7c7b\u7684\u9009\u62e9<\/h4>\n<\/p>\n

Spring Boot\u81ea\u52a8\u914d\u7f6e\u7684\u672c\u8d28\u662f\u4e00\u6279\u81ea\u52a8\u914d\u7f6e\u7684Java\u914d\u7f6e\u7c7b\uff0c\u5b83\u4eec\u901a\u5e38\u4f4d\u4e8espring-boot-autoconfigure.jar\u4e2d\u3002\u8fd9\u4e9b\u914d\u7f6e\u7c7b\u4f7f\u7528\u4e86\u4e0a\u8ff0\u63d0\u5230\u7684@Conditional\u6ce8\u89e3\u3002\u7531\u4e8eSpring Boot\u7684\u8fd9\u79cd\u667a\u80fd\u9009\u62e9\u673a\u5236\uff0c\u5f00\u53d1\u8005\u4e0d\u518d\u9700\u8981\u624b\u52a8\u7f16\u5199\u5927\u91cf\u7684\u914d\u7f6e\uff0c\u6846\u67b6\u4e3a\u4f60\u641e\u5b9a\u5927\u90e8\u5206\u6742\u4e8b\u3002<\/p>\n<\/p>\n

\u914d\u7f6e\u7c7b\u7684\u52a0\u8f7d\u548c\u5e94\u7528<\/h4>\n<\/p>\n

\u81ea\u52a8\u914d\u7f6e\u7c7b\u5728\u5e94\u7528\u542f\u52a8\u65f6\u88ab\u52a0\u8f7d\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u6d89\u53ca\u5230\u590d\u6742\u7684\u6761\u4ef6\u8bc4\u4f30\uff0c\u53ea\u6709\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u7684\u914d\u7f6e\u7c7b\u624d\u4f1a\u88ab\u5b9e\u4f8b\u5316\u5e76\u5e94\u7528\u5230Spring\u4e0a\u4e0b\u6587\u4e2d\u3002\u8fd9\u4e00\u673a\u5236\u4fdd\u8bc1\u4e86Spring Boot\u5e94\u7528\u7684\u9ad8\u6548\u914d\u7f6e\uff0c\u5e76\u4e14\u786e\u4fdd\u4e86\u914d\u7f6e\u7684\u9002\u65f6\u6027\u548c\u51c6\u786e\u6027\u3002<\/p>\n<\/p>\n

\u56db\u3001\u4f18\u5316\u81ea\u52a8\u914d\u7f6e<\/h3>\n<\/p>\n

\u81ea\u5b9a\u4e49\u81ea\u52a8\u914d\u7f6e<\/h4>\n<\/p>\n

\u867d\u7136Spring Boot\u63d0\u4f9b\u4e86\u5927\u91cf\u7684\u81ea\u52a8\u914d\u7f6e\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5f00\u53d1\u8005\u53ef\u80fd\u9700\u8981\u8986\u76d6\u9ed8\u8ba4\u914d\u7f6e\u6216\u6dfb\u52a0\u989d\u5916\u7684\u81ea\u52a8\u914d\u7f6e\u3002Spring Boot\u5141\u8bb8\u901a\u8fc7\u521b\u5efa\u81ea\u5b9a\u4e49\u7684\u81ea\u52a8\u914d\u7f6e\u7c7b\u5e76\u4f7f\u7528\u76f8\u5e94\u7684@Conditional\u6ce8\u89e3\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff0c\u4ece\u800c\u6ee1\u8db3\u7279\u5b9a\u7684\u4e1a\u52a1\u9700\u6c42\u3002<\/p>\n<\/p>\n

\u8986\u76d6\u81ea\u52a8\u914d\u7f6e<\/h4>\n<\/p>\n

\u5728\u5b9e\u8df5\u4e2d\uff0c\u53ef\u80fd\u7531\u4e8e\u9879\u76ee\u7279\u6b8a\u9700\u8981\uff0c\u5f00\u53d1\u8005\u9700\u8981\u8986\u76d6\u6389\u9ed8\u8ba4\u7684\u81ea\u52a8\u914d\u7f6e\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u5b9a\u4e49\u81ea\u5df1\u7684@Configuration\u7c7b\uff0c\u5e76\u5c06\u5176\u58f0\u660e\u4f18\u5148\u7ea7\u9ad8\u4e8e\u9ed8\u8ba4\u7684\u81ea\u52a8\u914d\u7f6e\u7c7b\u6765\u5b9e\u73b0\u3002\u6b64\u5916\uff0c\u53ef\u4ee5\u4f7f\u7528application.properties\u6216application.yml\u6587\u4ef6\u6765\u81ea\u5b9a\u4e49\u914d\u7f6e\u5c5e\u6027\uff0c\u8fdb\u4e00\u6b65\u589e\u5f3a\u5e94\u7528\u7684\u5b9a\u5236\u6027\u3002<\/p>\n<\/p>\n

\u901a\u8fc7\u638c\u63e1Spring Boot\u7684\u81ea\u52a8\u914d\u7f6e\u539f\u7406\u4ee5\u53ca\u5982\u4f55\u4f18\u5316\u548c\u81ea\u5b9a\u4e49\u81ea\u52a8\u914d\u7f6e\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u66f4\u9ad8\u6548\u5730\u5f00\u53d1Spring Boot\u5e94\u7528\uff0c\u5145\u5206\u5229\u7528Spring Boot\u6846\u67b6\u63d0\u4f9b\u7684\u4fbf\u5229\uff0c\u4ece\u800c\u4e13\u6ce8\u4e8e\u6838\u5fc3\u4e1a\u52a1\u903b\u8f91\u7684\u5b9e\u73b0\u3002<\/p>\n<\/p>\n

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

1. Spring Boot\u81ea\u52a8\u914d\u7f6e\u662f\u5982\u4f55\u5b9e\u73b0\u7684\uff1f<\/strong>
\nSpring Boot\u81ea\u52a8\u914d\u7f6e\u662f\u901a\u8fc7\u4f7f\u7528\u6761\u4ef6\u5316\u7684\u6ce8\u89e3\u6765\u5b9e\u73b0\u7684\uff0c\u4f8b\u5982\uff0c@ConditionalOnClass<\/code>\u7528\u4e8e\u8868\u793a\u53ea\u6709\u7279\u5b9a\u7684\u7c7b\u5b58\u5728\u65f6\u624d\u4f1a\u5e94\u7528\u81ea\u52a8\u914d\u7f6e\uff0c@ConditionalOnMissingBean<\/code>\u7528\u4e8e\u8868\u793a\u53ea\u6709\u7279\u5b9a\u7684Bean\u4e0d\u5b58\u5728\u65f6\u624d\u4f1a\u5e94\u7528\u81ea\u52a8\u914d\u7f6e\u3002\u8fd9\u4e9b\u6ce8\u89e3\u4f7f\u5f97Spring Boot\u80fd\u591f\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684\u73af\u5883\u548c\u914d\u7f6e\u6765\u81ea\u52a8\u51b3\u5b9a\u662f\u5426\u5e94\u7528\u67d0\u4e2a\u81ea\u52a8\u914d\u7f6e\u3002<\/p>\n

2. Spring Boot\u81ea\u52a8\u914d\u7f6e\u7684\u5de5\u4f5c\u539f\u7406\u662f\u4ec0\u4e48\uff1f<\/strong>
\nSpring Boot\u81ea\u52a8\u914d\u7f6e\u662f\u57fa\u4e8e\u7ea6\u5b9a\u5927\u4e8e\u914d\u7f6e\u7684\u539f\u5219\u3002Spring Boot\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684classpath\u4e2d\u5b58\u5728\u7684\u7c7b\u3001\u4f9d\u8d56\u548c\u914d\u7f6e\u6765\u63a8\u65ad\u548c\u914d\u7f6eSpring\u5e94\u7528\u7a0b\u5e8f\u7684\u7ec4\u4ef6\u3002\u5b83\u901a\u8fc7\u626b\u63cf\u6307\u5b9a\u7684\u5305\u4ee5\u53ca\u5e94\u7528\u7a0b\u5e8f\u7684\u7c7b\u8def\u5f84\u6765\u53d1\u73b0\u9700\u8981\u81ea\u52a8\u914d\u7f6e\u7684\u7c7b\u548cBean\uff0c\u7136\u540e\u6839\u636e\u4e00\u7cfb\u5217\u7684\u6761\u4ef6\u6765\u81ea\u52a8\u914d\u7f6e\u8fd9\u4e9b\u7ec4\u4ef6\u3002<\/p>\n

3. Spring Boot\u81ea\u52a8\u914d\u7f6e\u7684\u4f18\u52bf\u662f\u4ec0\u4e48\uff1f<\/strong>
\nSpring Boot\u81ea\u52a8\u914d\u7f6e\u7684\u4f18\u52bf\u5728\u4e8e\u5b83\u80fd\u591f\u6781\u5927\u5730\u7b80\u5316\u5f00\u53d1\u8fc7\u7a0b\u3002\u901a\u8fc7\u81ea\u52a8\u914d\u7f6e\uff0c\u5f00\u53d1\u4eba\u5458\u65e0\u9700\u624b\u52a8\u914d\u7f6e\u5927\u91cf\u7684Spring\u76f8\u5173\u7ec4\u4ef6\uff0cSpring Boot\u53ef\u4ee5\u81ea\u52a8\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684\u73af\u5883\u548c\u914d\u7f6e\u6765\u51b3\u5b9a\u8981\u5e94\u7528\u54ea\u4e9b\u7ec4\u4ef6\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u5f00\u53d1\u4eba\u5458\u7684\u5de5\u4f5c\u91cf\u3002\u6b64\u5916\uff0cSpring Boot\u7684\u81ea\u52a8\u914d\u7f6e\u8fd8\u80fd\u591f\u63d0\u4f9b\u4e00\u81f4\u6027\u7684\u914d\u7f6e\u548c\u6700\u4f73\u5b9e\u8df5\uff0c\u4f7f\u5f97\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u66f4\u52a0\u4e13\u6ce8\u4e8e\u4e1a\u52a1\u903b\u8f91\u7684\u5b9e\u73b0\uff0c\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Spring Boot \u7684\u81ea\u52a8\u914d\u7f6e\u539f\u7406\u4e3b\u8981\u4f9d\u8d56\u4e8e\u4e24\u4e2a\u6838\u5fc3\u673a\u5236\uff1a@Conditional\u6ce8\u89e3\u548c@EnableAu […]","protected":false},"author":3,"featured_media":299962,"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\/299949"}],"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=299949"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/299949\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/299962"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=299949"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=299949"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=299949"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}