Tomcat 错误：警告：无法检索容器的 JNDI 命名上下文答案

【问题标题】：Tomcat Error: WARNING: Failed to retrieve JNDI naming context for containerTomcat 错误：警告：无法检索容器的 JNDI 命名上下文
【发布时间】：2013-12-31 09:16:16
【问题描述】：

当我尝试在 Tomcat 7 上启动最近部署的 Web 应用程序时，我在 Tomcat70/logs/ 文件夹中的 catalina.2013-12-31.log 文件中遇到以下错误。

Dec 31, 2013 10:11:20 AM org.apache.catalina.deploy.NamingResources cleanUp
WARNING: Failed to retrieve JNDI naming context for container [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/crm]] so no cleanup was performed for that container
javax.naming.NameNotFoundException: Name [comp/env] is not bound in this Context. Unable to find [comp].
    at org.apache.naming.NamingContext.lookup(NamingContext.java:820)
    at org.apache.naming.NamingContext.lookup(NamingContext.java:168)
    at org.apache.catalina.deploy.NamingResources.cleanUp(NamingResources.java:977)
    at org.apache.catalina.deploy.NamingResources.stopInternal(NamingResources.java:959)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5483)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:141)
    at org.apache.catalina.manager.ManagerServlet.start(ManagerServlet.java:1247)
    at org.apache.catalina.manager.HTMLManagerServlet.start(HTMLManagerServlet.java:747)
    at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:222)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:186)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)

我的应用程序是一个 JDK7 Web 应用程序。我试图寻找类似的问题并尝试了一些建议，例如重新启动服务器（以清除一些 XML 文件），但没有奏效。

有什么想法吗？

更新：

这就是我在web.xml 中的内容：

<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app
    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>

    <!-- Define CRM session timeout -->
    <session-config>
    <session-timeout>60</session-timeout>
    </session-config>

    <!-- Define servlet-mapped and path-mapped example filters -->
    <filter>
        <filter-name>Servlet Mapped Filter</filter-name>
        <filter-class>Filters.ExampleFilter</filter-class>
    <init-param>
        <param-name>attribute</param-name>
        <param-value>Filters.ExampleFilter.SERVLET_MAPPED</param-value>
    </init-param>
    </filter>
    <filter>
        <filter-name>Path Mapped Filter</filter-name>
        <filter-class>Filters.ExampleFilter</filter-class>
    <init-param>
        <param-name>attribute</param-name>
        <param-value>Filters.ExampleFilter.PATH_MAPPED</param-value>
    </init-param>
    </filter>
    <filter>
        <filter-name>Request Dumper Filter</filter-name>
        <filter-class>Filters.RequestDumperFilter</filter-class>
    </filter>

    <filter>
        <filter-name>Set Character Encoding</filter-name>
        <filter-class>Filters.SetCharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>EUC_JP</param-value>
        </init-param>
    </filter>
    <filter>
        <filter-name>Compression Filter</filter-name>
        <filter-class>CompressionFilters.CompressionFilter</filter-class>
        <init-param>
          <param-name>compressionThreshold</param-name>
          <param-value>10</param-value>
        </init-param>
        <init-param>
          <param-name>debug</param-name>
          <param-value>0</param-value>
        </init-param>
    </filter>

    <!-- Define filter mappings for the defined filters -->
    <filter-mapping>
        <filter-name>Servlet Mapped Filter</filter-name>
    <servlet-name>invoker</servlet-name>
    </filter-mapping>
    <filter-mapping>
        <filter-name>Path Mapped Filter</filter-name>
    <url-pattern>/servlet/*</url-pattern>
    </filter-mapping>

    <!-- Define example application events listeners -->
    <listener>
        <listener-class>Listeners.ContextListener</listener-class>
    </listener>
    <listener>
        <listener-class>Listeners.SessionListener</listener-class>
    </listener>

    <!-- Define servlets that are included in the example application -->
    <servlet>
        <servlet-name>SendMailServlet</servlet-name>
        <servlet-class>SendMailServlet</servlet-class>
    </servlet>

    <servlet>
        <servlet-name>
            snoop
        </servlet-name>
        <servlet-class>
            SnoopServlet
        </servlet-class>
        <run-as>
            <description>Security role for anonymous access</description>
            <role-name>tomcat</role-name>
        </run-as>
    </servlet>

    <servlet>
      <servlet-name>
          servletToJsp
      </servlet-name>
      <servlet-class>
          servletToJsp
      </servlet-class>
    </servlet>
    <servlet>
        <servlet-name>
            CompressionFilterTestServlet
        </servlet-name>
        <servlet-class>
            CompressionFilters.CompressionFilterTestServlet
        </servlet-class>
    </servlet>

    <servlet-mapping>
        <servlet-name>
            CompressionFilterTestServlet
        </servlet-name>
        <url-pattern>
            /CompressionTest
        </url-pattern>
    </servlet-mapping>

    <servlet-mapping>
        <servlet-name>SendMailServlet</servlet-name>
        <url-pattern>/SendMailServlet</url-pattern>
    </servlet-mapping>

    <servlet-mapping>
        <servlet-name>
            snoop
        </servlet-name>
        <url-pattern>
            /snoop
        </url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>
            servletToJsp
        </servlet-name>
        <url-pattern>
            /servletToJsp
        </url-pattern>
    </servlet-mapping>

    <!-- Added 11/02/2013 - Ryan Sammut -->
    <!-- Servlet Mapping -->
    <servlet>
        <servlet-name>AddNewContact</servlet-name> 
        <servlet-class>Crm.Servlets.AddNewContact</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>AddNewContact</servlet-name> 
        <url-pattern>/servlet/AddNewContact</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>AddTip</servlet-name> 
        <servlet-class>Crm.Servlets.AddTip</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>AddTip</servlet-name> 
        <url-pattern>/servlet/AddTip</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>CaaPdfOutputter</servlet-name> 
        <servlet-class>Crm.Servlets.CaaPdfOutputter</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>CaaPdfOutputter</servlet-name> 
        <url-pattern>/servlet/CaaPdfOutputter</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>CaaTestSubmit</servlet-name> 
        <servlet-class>Crm.Servlets.CaaTestSubmit</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>CaaTestSubmit</servlet-name> 
        <url-pattern>/servlet/CaaTestSubmit</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>DeleteTip</servlet-name> 
        <servlet-class>Crm.Servlets.DeleteTip</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>DeleteTip</servlet-name> 
        <url-pattern>/servlet/DeleteTip</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>DestinationCustomerFinancialAdvisorRefresh</servlet-name> 
        <servlet-class>Crm.Servlets.DestinationCustomerFinancialAdvisorRefresh</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>DestinationCustomerFinancialAdvisorRefresh</servlet-name> 
        <url-pattern>/servlet/DestinationCustomerFinancialAdvisorRefresh</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>DestinationCustomerRefresh</servlet-name> 
        <servlet-class>Crm.Servlets.DestinationCustomerRefresh</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>DestinationCustomerRefresh</servlet-name> 
        <url-pattern>/servlet/DestinationCustomerRefresh</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>DestinationCustomerShadowFinancialAdvisorRefresh</servlet-name> 
        <servlet-class>Crm.Servlets.DestinationCustomerShadowFinancialAdvisorRefresh</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>DestinationCustomerShadowFinancialAdvisorRefresh</servlet-name> 
        <url-pattern>/servlet/DestinationCustomerShadowFinancialAdvisorRefresh</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>DestinationOfficerControl</servlet-name> 
        <servlet-class>Crm.Servlets.DestinationOfficerControl</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>DestinationOfficerControl</servlet-name> 
        <url-pattern>/servlet/DestinationOfficerControl</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>DestinationOfficerFinancialAdvisorControl</servlet-name> 
        <servlet-class>Crm.Servlets.DestinationOfficerFinancialAdvisorControl</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>DestinationOfficerFinancialAdvisorControl</servlet-name> 
        <url-pattern>/servlet/DestinationOfficerFinancialAdvisorControl</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>DestinationOfficerShadowFinancialAdvisorControl</servlet-name> 
        <servlet-class>Crm.Servlets.DestinationOfficerShadowFinancialAdvisorControl</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>DestinationOfficerShadowFinancialAdvisorControl</servlet-name> 
        <url-pattern>/servlet/DestinationOfficerShadowFinancialAdvisorControl</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>FactFindControl</servlet-name> 
        <servlet-class>Crm.Servlets.FactFindControl</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>FactFindControl</servlet-name> 
        <url-pattern>/servlet/FactFindControl</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>InsertAddedCustomerFinancialAdvisor</servlet-name> 
        <servlet-class>Crm.Servlets.InsertAddedCustomerFinancialAdvisor</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>InsertAddedCustomerFinancialAdvisor</servlet-name> 
        <url-pattern>/servlet/InsertAddedCustomerFinancialAdvisor</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>InsertAddedCustomerRelationshipOfficer</servlet-name> 
        <servlet-class>Crm.Servlets.InsertAddedCustomerRelationshipOfficer</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>InsertAddedCustomerRelationshipOfficer</servlet-name> 
        <url-pattern>/servlet/InsertAddedCustomerRelationshipOfficer</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>InsertAddedCustomerShadowFinancialAdvisor</servlet-name> 
        <servlet-class>Crm.Servlets.InsertAddedCustomerShadowFinancialAdvisor</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>InsertAddedCustomerShadowFinancialAdvisor</servlet-name> 
        <url-pattern>/servlet/InsertAddedCustomerShadowFinancialAdvisor</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>KYCControl</servlet-name> 
        <servlet-class>Crm.Servlets.KYCControl</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>KYCControl</servlet-name> 
        <url-pattern>/servlet/KYCControl</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>LeadAssignmentTransfer</servlet-name> 
        <servlet-class>Crm.Servlets.LeadAssignmentTransfer</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>LeadAssignmentTransfer</servlet-name> 
        <url-pattern>/servlet/LeadAssignmentTransfer</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>LeadAssignmentView</servlet-name> 
        <servlet-class>Crm.Servlets.LeadAssignmentView</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>LeadAssignmentView</servlet-name> 
        <url-pattern>/servlet/LeadAssignmentView</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>LeadDetailsGenerator</servlet-name> 
        <servlet-class>Crm.Servlets.LeadDetailsGenerator</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>LeadDetailsGenerator</servlet-name> 
        <url-pattern>/servlet/LeadDetailsGenerator</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>ListAddedCustomerFinancialAdvisor</servlet-name> 
        <servlet-class>Crm.Servlets.ListAddedCustomerFinancialAdvisor</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>ListAddedCustomerFinancialAdvisor</servlet-name> 
        <url-pattern>/servlet/ListAddedCustomerFinancialAdvisor</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>ListAddedCustomerRelationshipOfficer</servlet-name> 
        <servlet-class>Crm.Servlets.ListAddedCustomerRelationshipOfficer</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>ListAddedCustomerRelationshipOfficer</servlet-name> 
        <url-pattern>/servlet/ListAddedCustomerRelationshipOfficer</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>ListAddedCustomerShadowFinancialAdvisor</servlet-name> 
        <servlet-class>Crm.Servlets.ListAddedCustomerShadowFinancialAdvisor</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>ListAddedCustomerShadowFinancialAdvisor</servlet-name> 
        <url-pattern>/servlet/ListAddedCustomerShadowFinancialAdvisor</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>RemoveCustomerFinancialAdvisor</servlet-name> 
        <servlet-class>Crm.Servlets.RemoveCustomerFinancialAdvisor</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>RemoveCustomerFinancialAdvisor</servlet-name> 
        <url-pattern>/servlet/RemoveCustomerFinancialAdvisor</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>RemoveCustomerRelationshipOfficer</servlet-name> 
        <servlet-class>Crm.Servlets.RemoveCustomerRelationshipOfficer</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>RemoveCustomerRelationshipOfficer</servlet-name> 
        <url-pattern>/servlet/RemoveCustomerRelationshipOfficer</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>RemoveCustomerShadowFinancialAdvisor</servlet-name> 
        <servlet-class>Crm.Servlets.RemoveCustomerShadowFinancialAdvisor</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>RemoveCustomerShadowFinancialAdvisor</servlet-name> 
        <url-pattern>/servlet/RemoveCustomerShadowFinancialAdvisor</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>RetrieveTips</servlet-name> 
        <servlet-class>Crm.Servlets.RetrieveTips</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>RetrieveTips</servlet-name> 
        <url-pattern>/servlet/RetrieveTips</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>SourceCustomerFinancialAdvisorRefresh</servlet-name> 
        <servlet-class>Crm.Servlets.SourceCustomerFinancialAdvisorRefresh</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>SourceCustomerFinancialAdvisorRefresh</servlet-name> 
        <url-pattern>/servlet/SourceCustomerFinancialAdvisorRefresh</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>SourceCustomerRefresh</servlet-name> 
        <servlet-class>Crm.Servlets.SourceCustomerRefresh</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>SourceCustomerRefresh</servlet-name> 
        <url-pattern>/servlet/SourceCustomerRefresh</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>SourceCustomerShadowFinancialAdvisorRefresh</servlet-name> 
        <servlet-class>Crm.Servlets.SourceCustomerShadowFinancialAdvisorRefresh</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>SourceCustomerShadowFinancialAdvisorRefresh</servlet-name> 
        <url-pattern>/servlet/SourceCustomerShadowFinancialAdvisorRefresh</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>SourceOfficerControl</servlet-name> 
        <servlet-class>Crm.Servlets.SourceOfficerControl</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>SourceOfficerControl</servlet-name> 
        <url-pattern>/servlet/SourceOfficerControl</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>SourceOfficerFinancialAdvisorControl</servlet-name> 
        <servlet-class>Crm.Servlets.SourceOfficerFinancialAdvisorControl</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>SourceOfficerFinancialAdvisorControl</servlet-name> 
        <url-pattern>/servlet/SourceOfficerFinancialAdvisorControl</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>SourceOfficerShadowFinancialAdvisorControl</servlet-name> 
        <servlet-class>Crm.Servlets.SourceOfficerShadowFinancialAdvisorControl</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>SourceOfficerShadowFinancialAdvisorControl</servlet-name> 
        <url-pattern>/servlet/SourceOfficerShadowFinancialAdvisorControl</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>TransferCustomerFinancialAdvisor</servlet-name> 
        <servlet-class>Crm.Servlets.TransferCustomerFinancialAdvisor</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>TransferCustomerFinancialAdvisor</servlet-name> 
        <url-pattern>/servlet/TransferCustomerFinancialAdvisor</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>TransferCustomerRelationshipOfficer</servlet-name> 
        <servlet-class>Crm.Servlets.TransferCustomerRelationshipOfficer</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>TransferCustomerRelationshipOfficer</servlet-name> 
        <url-pattern>/servlet/TransferCustomerRelationshipOfficer</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>TransferCustomerShadowFinancialAdvisor</servlet-name> 
        <servlet-class>Crm.Servlets.TransferCustomerShadowFinancialAdvisor</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>TransferCustomerShadowFinancialAdvisor</servlet-name> 
        <url-pattern>/servlet/TransferCustomerShadowFinancialAdvisor</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>UpdateCustomerMonitoringUnit</servlet-name> 
        <servlet-class>Crm.Servlets.UpdateCustomerMonitoringUnit</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>UpdateCustomerMonitoringUnit</servlet-name> 
        <url-pattern>/servlet/UpdateCustomerMonitoringUnit</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>SohPdfOutputter</servlet-name> 
        <servlet-class>Crm.Servlets.SohPdfOutputter</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>SohPdfOutputter</servlet-name> 
        <url-pattern>/servlet/SohPdfOutputter</url-pattern> 
    </servlet-mapping>

    <servlet>
        <servlet-name>variouscontrol</servlet-name> 
        <servlet-class>Crm.Servlets.variouscontrol</servlet-class> 
    </servlet>
    <servlet-mapping>
        <servlet-name>variouscontrol</servlet-name> 
        <url-pattern>/servlet/variouscontrol</url-pattern> 
    </servlet-mapping>

    <taglib>
        <taglib-uri>
       http://jakarta.apache.org/tomcat/debug-taglib
        </taglib-uri>
        <taglib-location>
           /WEB-INF/jsp/debug-taglib.tld
        </taglib-location>
    </taglib>

    <taglib>
        <taglib-uri>
       http://jakarta.apache.org/tomcat/examples-taglib
        </taglib-uri>
        <taglib-location>
           /WEB-INF/jsp/example-taglib.tld
        </taglib-location>
    </taglib>

    <resource-ref>
      <res-ref-name>mail/Session</res-ref-name>
      <res-type>javax.mail.Session</res-type>
      <res-auth>Container</res-auth>
    </resource-ref>

    <security-constraint>
      <display-name>Example Security Constraint</display-name>
      <web-resource-collection>
         <web-resource-name>Protected Area</web-resource-name>
     <!-- Define the context-relative URL(s) to be protected -->
         <url-pattern>/jsp/security/protected/*</url-pattern>
     <!-- If you list http methods, only those methods are protected -->
     <http-method>DELETE</http-method>
         <http-method>GET</http-method>
         <http-method>POST</http-method>
     <http-method>PUT</http-method>
      </web-resource-collection>
      <auth-constraint>
         <!-- Anyone with one of the listed roles may access this area -->
         <role-name>tomcat</role-name>
     <role-name>role1</role-name>
      </auth-constraint>
    </security-constraint>

    <!-- Default login configuration uses form-based authentication -->
    <login-config>
      <auth-method>FORM</auth-method>
      <realm-name>Example Form-Based Authentication Area</realm-name>
      <form-login-config>
        <form-login-page>/jsp/security/protected/login.jsp</form-login-page>
        <form-error-page>/jsp/security/protected/error.jsp</form-error-page>
      </form-login-config>
    </login-config>

    <!-- Environment entry examples -->
    <!--env-entry>
      <env-entry-description>
         The maximum number of tax exemptions allowed to be set.
      </env-entry-description>
      <env-entry-name>maxExemptions</env-entry-name>
      <env-entry-value>15</env-entry-value>
      <env-entry-type>java.lang.Integer</env-entry-type>
    </env-entry-->
    <env-entry>
      <env-entry-name>minExemptions</env-entry-name>
      <env-entry-value>1</env-entry-value>
      <env-entry-type>java.lang.Integer</env-entry-type>
    </env-entry>
    <env-entry>
      <env-entry-name>foo/name1</env-entry-name>
      <env-entry-value>value1</env-entry-value>
      <env-entry-type>java.lang.String</env-entry-type>
    </env-entry>
    <env-entry>
      <env-entry-name>foo/bar/name2</env-entry-name>
      <env-entry-value>true</env-entry-value>
      <env-entry-type>java.lang.Boolean</env-entry-type>
    </env-entry>
    <env-entry>
      <env-entry-name>name3</env-entry-name>
      <env-entry-value>1</env-entry-value>
      <env-entry-type>java.lang.Integer</env-entry-type>
    </env-entry>
    <env-entry>
      <env-entry-name>foo/name4</env-entry-name>
      <env-entry-value>10</env-entry-value>
      <env-entry-type>java.lang.Integer</env-entry-type>
    </env-entry>

    <!-- EJB Reference -->
    <ejb-ref>
      <description>Example EJB Reference</description>
      <ejb-ref-name>ejb/Account</ejb-ref-name>
      <ejb-ref-type>Entity</ejb-ref-type>
      <home>com.mycompany.mypackage.AccountHome</home>
      <remote>com.mycompany.mypackage.Account</remote>
    </ejb-ref>

    <!-- Local EJB Reference -->
    <ejb-local-ref>
      <description>Example Local EJB Reference</description>
      <ejb-ref-name>ejb/ProcessOrder</ejb-ref-name>
      <ejb-ref-type>Session</ejb-ref-type>
      <local-home>com.mycompany.mypackage.ProcessOrderHome</local-home>
      <local>com.mycompany.mypackage.ProcessOrder</local>
    </ejb-local-ref>
</web-app>

/Tomcat70/conf/中服务器的context.xml：

<?xml version='1.0' encoding='utf-8'?>
<Context>
   <WatchedResource>WEB-INF/web.xml</WatchedResource>
</Context>

【问题讨论】：

您的 web.xml 和 Tomcat 的 context.xml 中有哪些关于 JNDI 查找的内容？
@Zyga - 在上面更新的以下文件中添加了我的代码
该错误似乎只是警告，它不是来自您的应用程序，而是来自 Tomcat 管理器。它真的会阻止您运行您的应用程序吗？
@Zyga - 是的，应用程序实际上并没有启动。这个问题似乎是随着新的开发而出现的，但实际上，我只是在应用程序中添加了一个新的 servlet 和一些类。
这是 Tomcat 日志中唯一的错误吗？此错误是否存在于较早的日志文件中（即当应用程序仍在为您工作时？）。是否有任何其他日志文件，即 localhost.log？我不相信上述错误是这里的问题。

标签： java tomcat7

【解决方案1】：

双击服务器名称打开服务器配置。之后选中“发布模块上下文以分隔 XML 文件”复选框。然后重启服务器

有时，通过删除和添加服务器可以解决此问题

【讨论】：

为我工作。谢谢。
任何人都知道这为什么有效吗？下面发生了什么？

【解决方案2】：

我删除了我的服务器并重新添加它。工作过

【讨论】：

【解决方案3】：

清理Tomcat服务器后我的就消失了。

【讨论】：

【解决方案4】：

我今天遇到了同样的错误。然后我在 Tomcat 服务器上执行了一次清理，它告诉我缺少几个 Maven POM。所以我执行了一个 Maven 更新项目（Eclipse：右键单击项目 -> Maven -> 更新项目.. -> 选择您需要的项目）。这解决了我的问题。

【讨论】：

这对我很有帮助

【解决方案5】：

当 Eclipse 覆盖我的 server.xml 时出现此错误，特别是从我的一个上下文中删除 JNDI 依赖项：

        <Context
            docBase="myapp"
            path="/myapp"
            reloadable="true"
            source="org.eclipse.jst.j2ee.server:myapp"
        >
            <Resource
                name="jdbc/myDataSource"
                auth="Container"
                type="javax.sql.DataSource"
                ... />
        </Context>

显而易见的解决方案 - 再次手动修改 Eclipse 中的“Servers”->“Tomcat v7”-> server.xml 并添加 'Resource' 元素。

【讨论】：

【解决方案6】：

我最近遇到了这个奇怪的问题，答案是清单文件的编码不正确或有不可见的 junc 字符。如果文件是在 unix 环境中创建的并且您在 windows 中运行它，则可能会发生这种情况。

解决方案是使用 UTF-8 编码重新创建文件。

【讨论】：

您能解释一下为什么 MANIFEST 文件会导致这样的问题吗？
我没有完整的答案，但很明显，清单文件在部署存档时发挥了作用。有时简单地删除清单会有所帮助，因为这会在部署或战争打包期间触发创建具有适当字符规范的新清单

【解决方案7】：

这是一个很奇怪的问题，但我通过仔细检查我的项目的 web.xml 解决了它。当我将 1 个错误的 servlet 配置行添加到 web.xml 时，也发生了同样的问题，并且在删除它时它消失了。因此，请非常仔细地检查您的 web.xml 并反转所有最近的更改 - 如果它可以正常工作，只需更正您刚刚犯的配置错误

【讨论】：

【解决方案8】：

也许这是个老问题了……但我们可以成为其他人的经验教训……

我遇到了同样的错误...我从服务器中删除了运行时，我删除了 .m2/repositories 中的所有存储库，Maven 更新，编译并且它可以工作

【讨论】：

【解决方案9】：

重启 Tomcat。

在测试 servlet 导致异常后，我的坏了。

【讨论】：

【解决方案10】：

我遇到了同样的问题。

我使用的是 Tomcat 8.5，我使用 JNDI 来配置对 MySQL 数据库的访问，我在我的 java 应用程序中使用了 MySQL-connector jar 版本 8，

我使用 MySQL-connector jar 版本 5 来解决它。

【讨论】：

【解决方案11】：

这可能是由于 java 已损坏，卸载 java 并安装新的 java 版本。它对我有用..

【讨论】：

【解决方案12】：

在设置一个全新的 Eclipse 后遇到了同样的问题。新结帐后无法运行 web 应用程序。

就我而言，我必须在项目属性中设置“目标运行时”：

之后你可以在你的项目中看到这个库：

【讨论】：

【解决方案13】：

下一个解决方案对我有用：

编辑 server.xml 并删除（接近文件末尾）：

<Context docBase="xxx" path="/xxx" reloadable="true" source="org.eclipse.jst.j2ee.server:xxx"/>

这是对已删除应用程序的引用。

【讨论】：