Question

当我尝试配置我的第一个应用程序时，我收到此错误。战争成功生成但是当我点击我的项目的URL时，网页上出现此错误并且控制台中出现相同的错误：

堆栈跟踪

2013-07-20 17:05:49,100 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/testing]] (http-127.0.0.1-8080-1) Exception sending request initialized lifecycle event to listener instance of class org.springframework.web.context.request.RequestContextListener
java.lang.IllegalArgumentException: Request is not an HttpServletRequest: org.apache.catalina.connector.RequestFacade@2b617c79
    at org.springframework.web.context.request.RequestContextListener.requestInitialized(RequestContextListener.java:54)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:180)
    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
    at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
    at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
    at java.lang.Thread.run(Thread.java:724)
2013-07-20 17:06:12,617 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/testing]] (http-127.0.0.1-8080-1) Exception sending request initialized lifecycle event to listener instance of class org.springframework.web.context.request.RequestContextListener
java.lang.IllegalArgumentException: Request is not an HttpServletRequest: org.apache.catalina.connector.RequestFacade@f4ffab5
    at org.springframework.web.context.request.RequestContextListener.requestInitialized(RequestContextListener.java:54)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:180)
    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
    at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
    at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
    at java.lang.Thread.run(Thread.java:724)

Answer 1

检查您的战争中是否碰巧没有 servlet-api 库。如果是这样，您将不得不删除它，因为服务器提供了此库。

<强>解释
HttpServletRequest由 servlet-api 库提供，该库通常由服务器（JBoss，Tomcat等）加载。

如果您的应用程序中也存在库，则它会被不同的classloaders多次加载：应用程序类加载器和服务器默认类加载器。

问题是，服务器加载的HttpServletRequest无法转换为应用程序加载的HttpServletRequest，反之亦然。

异常发送请求将生命周期事件初始化为类org.springframework.web.context.request.RequestContextListener的侦听器实例

1 个答案: