持续创作，加速成长！这是我参与「掘金日新计划 · 10 月更文挑战」的第6天，点击查看活动详情
前言
兄弟们，今天做了一件大事儿，清理了一些该清理的记录，四年，翻篇了。以后就做自己的星星了，要闪闪发光呀！ 今天浅浅地回忆了一下以前遇到的一个问题，记录一下吧~（没有划水，真实遇到的坑）
Swagger注解引发的错误
@Configuration @EnableSwagger2
错误页面：
提示：
1. 2021-07-30 13:13:06.164 INFO 12536 --- [ main] c.example.demo0726.Demo0726Application : Starting Demo0726Application using Java 1.8.0_101 on DESKTOP-41DCVHB with PID 12536 (D:\demo0726\target\classes started by lenovo in D:\demo0726)
2. 2021-07-30 13:13:06.167 INFO 12536 --- [ main] c.example.demo0726.Demo0726Application : No active profile set, falling back to default profiles: default
3. 2021-07-30 13:13:08.064 INFO 12536 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 9999 (http)
4. 2021-07-30 13:13:08.080 INFO 12536 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
5. 2021-07-30 13:13:08.080 INFO 12536 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.50]
6. 2021-07-30 13:13:08.195 INFO 12536 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
7. 2021-07-30 13:13:08.195 INFO 12536 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1918 ms
8. 2021-07-30 13:13:09.056 INFO 12536 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 9999 (http) with context path ''
9. 2021-07-30 13:13:09.065 INFO 12536 --- [ main] c.example.demo0726.Demo0726Application : Started Demo0726Application in 3.696 seconds (JVM running for 4.579)
编译结果：
加上注解后编译的提示：
2021-07-30 13:17:31.839 INFO 32788 --- [ main] c.example.demo0726.Demo0726Application : Starting Demo0726Application using Java 1.8.0_101 on DESKTOP-41DCVHB with PID 32788 (D:\demo0726\target\classes started by lenovo in D:\demo0726)
2021-07-30 13:17:31.842 INFO 32788 --- [ main] c.example.demo0726.Demo0726Application : No active profile set, falling back to default profiles: default
2021-07-30 13:17:33.264 INFO 32788 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 9999 (http)
2021-07-30 13:17:33.284 INFO 32788 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2021-07-30 13:17:33.284 INFO 32788 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.50]
2021-07-30 13:17:33.398 INFO 32788 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2021-07-30 13:17:33.398 INFO 32788 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1509 ms
2021-07-30 13:17:34.074 INFO 32788 --- [ main] pertySourcedRequestMappingHandlerMapping : Mapped URL path [/v2/api-docs] onto method [springfox.documentation.swagger2.web.Swagger2Controller#getDocumentation(String, HttpServletRequest)]
2021-07-30 13:17:34.385 INFO 32788 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 9999 (http) with context path ''
2021-07-30 13:17:34.386 INFO 32788 --- [ main] d.s.w.p.DocumentationPluginsBootstrapper : Context refreshed
2021-07-30 13:17:34.414 INFO 32788 --- [ main] d.s.w.p.DocumentationPluginsBootstrapper : Found 1 custom documentation plugin(s)
2021-07-30 13:17:34.459 INFO 32788 --- [ main] s.d.s.w.s.ApiListingReferenceScanner : Scanning for api listing references
2021-07-30 13:17:34.645 INFO 32788 --- [ main] c.example.demo0726.Demo0726Application : Started Demo0726Application in 3.289 seconds (JVM running for 3.977)
加上注解后编译结果：
正确显示：
综述
在整合spring boot和swagger的时候一般会对swagger进行配置，即加上 @Configuration @EnableSwagger2 这两个注解；如果有兄弟们遇到同样的问题可以try一下嘛！
