skywalking功能就不多說了，說多了我也不知道....
解決問題方案 1：將spring-web的版本升到4.2.X 因爲path()的方法是4.2之後纔有的 單獨升spring-web版本不行，spring的都要升
2：保證controller的方法上
@RequestMapping(method = RequestMethod.POST, value = "") value是有定義的，沒有定義value會報錯
兩個選一個就可以解決
下面分析解決方法，原理還沒時間看 先解決問題.....
在tomcat中加入agent路徑後，agent/logs下面skywalking-api.log 多了很多的錯誤日誌，兩天就把磁盤撐爆了看日誌如下
DEBUG 2019-12-18 19:31:31:610 pool-1109527-thread-1 TraceSegmentServiceClient : One trace segment has been abandoned, cause by buffer is full.
DEBUG 2019-12-18 19:31:31:610 pool-1109527-thread-1 TraceSegmentServiceClient : One trace segment has been abandoned, cause by buffer is full.
DEBUG 2019-12-18 19:31:31:610 threadPoolTaskExecutor-87 TraceSegmentServiceClient : One trace segment has been abandoned, cause by buffer is full.
ERROR 2019-12-18 19:31:31:610 http-nio-8088-exec-396 InstMethodsInter : class[class com.xxxx.xxxx.controller.xxxxController] after method[xxxx] intercept failure
org.apache.skywalking.apm.plugin.spring.mvc.commons.exception.IllegalMethodStackDepthException: Please submit an new issue to Apache Skywalking if this Exception was happened.
at org.apache.skywalking.apm.plugin.spring.mvc.commons.interceptor.AbstractMethodInterceptor.afterMethod(AbstractMethodInterceptor.java:150)
at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:105)
at com.xxxx.xxxx.controller.xxxxController.xxxx(xxxxController.java)
at sun.reflect.GeneratedMethodAccessor82.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest$original$N6C0m52i(InvocableHandlerMethod.java:137)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest$original$N6C0m52i$accessor$gsVj7jwA(InvocableHandlerMethod.java)
at org.springframework.web.method.support.InvocableHandlerMethod$auxiliary$K6EC4n7Y.call(Unknown Source)
at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:93)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:777)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:706)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)
at org.apache.catalina.core.StandardHostValve.invoke$original$d3OBIOOK(StandardHostValve.java:170)
at org.apache.catalina.core.StandardHostValve.invoke$original$d3OBIOOK$accessor$XcPehfpS(StandardHostValve.java)
DEBUG 2019-12-18 19:31:31:609 pool-1109527-thread-1 TraceSegmentServiceClient : One trace segment has been abandoned, cause by buffer is full.
ERROR 2019-12-18 19:31:31:609 http-nio-8088-exec-396 InstMethodsInter : class[class com.xxxx.xxxx.controller.xxxController] before method[xxxx] intercept failure
java.lang.NoSuchMethodError: org.springframework.web.bind.annotation.RequestMapping.path()[Ljava/lang/String;
at org.apache.skywalking.apm.plugin.spring.mvc.commons.interceptor.RequestMappingMethodInterceptor.getRequestURL(RequestMappingMethodInterceptor.java:38)
at org.apache.skywalking.apm.plugin.spring.mvc.commons.interceptor.AbstractMethodInterceptor.beforeMethod(AbstractMethodInterceptor.java:82)
at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:82)
at com.xxxx.xxxx.controller.xxxController.xxx(xxxController.java)
at sun.reflect.GeneratedMethodAccessor82.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest$original$N6C0m52i(InvocableHandlerMethod.java:137)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest$original$N6C0m52i$accessor$gsVj7jwA(InvocableHandlerMethod.java)
at org.springframework.web.method.support.InvocableHandlerMethod$auxiliary$K6EC4n7Y.call(Unknown Source)
at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:93)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:777)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:706)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
重點是
查看RequestMappingMethodInterceptor源碼
報錯位置在這裏 一個value() 一個path()
解決問題方案 1：將spring-web的版本升到4.2.X 因爲path()的方法是4.2之後纔有的 單獨升spring-web版本不行，spring的都要升
2：保證controller的方法上
@RequestMapping(method = RequestMethod.POST, value = "") value是有定義的，沒有定義value會報錯
線上問題已解決，使用的方案2 value = ""
如果有誤歡迎指出