在使用spring boot 1.X的時候我們可以在console中看到mapping的映射路徑
1 2020-01-12 19:10:19.996 INFO 2711 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest) 2 2020-01-12 19:10:19.997 INFO 2711 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) 3 2020-01-12 19:10:20.026 INFO 2711 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 4 2020-01-12 19:10:20.026 INFO 2711 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 5 2020-01-12 19:10:20.065 INFO 2711 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 6 2020-01-12 19:10:20.422 INFO 2711 --- [ main] uration$$EnhancerBySpringCGLIB$$8e8eae03 : No deployment resources were found for autodeployment 7 2020-01-12 19:10:20.574 INFO 2711 --- [ main] uration$$EnhancerBySpringCGLIB$$e60feff5 : No deployment resources were found for autodeployment 8 2020-01-12 19:10:20.614 INFO 2711 --- [ main] uration$$EnhancerBySpringCGLIB$$2a356a63 : No deployment resources were found for autodeployment
開發的時候有這個可以方便的解決404的問題，可以看看自己新添加的接口有沒有映射上去。
為什么我升級為2.2.1就不行了呢。。
一番查找之后發現
Spring Boot 2.1 以后 使用了 Spring Framework 5.1, 而 Spring Framework 5.1 對日志做了較大的改動。現在使用 INFO 級別記錄的信息非常少，DEBUG 級別提供了更多信息，但不詳細。只有 TRACE 級別才會提供詳細信息。這時候為了要打印Controller里面的 RequestMapping信息需要把org.springframework.web打印日志的格式設置為trace，示例如下：
logging:
level:
# root: info
# org.mybatis: debug
# java.sql: debug
org.springframework.web: trace
加上日志級別后終於出來了
2020-01-12 19:19:01.286 TRACE 3010 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : o.s.b.a.w.s.e.BasicErrorController: { /error}: error(HttpServletRequest) { /error, produces [text/html]}: errorHtml(HttpServletRequest,HttpServletResponse) 2020-01-12 19:19:01.291 DEBUG 3010 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : 2 mappings in 'requestMappingHandlerMapping'
或者 也是可以的
logging:
level:
web: trace
sql: debug # mybatis 日志
root：info # 本項目日志 info