访问主页状态500怎么搞

加油机 2020-10-25 11:25:08

javax.servlet域已经设置了。报错如下，纠结很久也搞不懂。

严重: Servlet.service() for servlet [jsp] in context with path [] threw exception [java.lang.LinkageError: loader constraint violation: when resolving method "org.apache.jasper.runtime.InstanceManagerFactory.getInstanceManager(Ljavax/servlet/ServletConfig;)Lorg/apache/tomcat/InstanceManager;" the class loader (instance of org/apache/jasper/servlet/JasperLoader) of the current class, org/apache/jsp/index_jsp, and the class loader (instance of org/codehaus/plexus/classworlds/realm/ClassRealm) for the method's defining class, org/apache/jasper/runtime/InstanceManagerFactory, have different Class objects for the type org/apache/tomcat/InstanceManager used in the signature] with root cause

java.lang.LinkageError: loader constraint violation: when resolving method "org.apache.jasper.runtime.InstanceManagerFactory.getInstanceManager(Ljavax/servlet/ServletConfig;)Lorg/apache/tomcat/InstanceManager;" the class loader (instance of org/apache/jasper/servlet/JasperLoader) of the current class, org/apache/jsp/index_jsp, and the class loader (instance of org/codehaus/plexus/classworlds/realm/ClassRealm) for the method's defining class, org/apache/jasper/runtime/InstanceManagerFactory, have different Class objects for the type org/apache/tomcat/InstanceManager used in the signature

	at org.apache.jsp.index_jsp._jspInit(index_jsp.java:33)

	at org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:49)

	at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:180)

	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)

	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)

	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)

	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)

	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)

	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)

	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)

	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)

	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)

	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:537)

	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1081)

	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658)

	at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222)

	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566)

	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523)

	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

	at java.lang.Thread.run(Thread.java:745)