Tomcat投掷错误

时间：2018-01-04 15:10:38

标签： java jsp tomcat

处理JSP项目。并且tomcat日志一直在抛出此错误。我不知道问题出在哪里。希望有人可以指出我正确的方向。

这似乎与我创建的过滤器CorsFilter有关。但是，当我删除servlet时，记录在web.xml中随之消失。

04-Jan-2018 16:33:55.466 SEVERE [http-nio-8084-exec-123] org.apache.catalina.core.StandardContext.filterStart Exception starting filter CorsFilter
 java.lang.ClassCastException: com.reviewmyprof.webservice.book.Book cannot be cast to javax.servlet.Filter
    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258)
    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105)
    at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4583)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5207)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:586)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:460)
    at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1586)
    at sun.reflect.GeneratedMethodAccessor45.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
    at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1460)
    at org.apache.catalina.manager.ManagerServlet.deploy(ManagerServlet.java:906)
    at org.apache.catalina.manager.ManagerServlet.doGet(ManagerServlet.java:344)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:217)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614)
    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:616)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$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)

的web.xml 

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">
    <servlet>
        <servlet-name>DeleteReview</servlet-name>
        <servlet-class>com.reviewmyprof.webservice.review.DeleteReview</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>my-books</servlet-name>
        <jsp-file>/my-books.jsp</jsp-file>
    </servlet>
    <servlet>
        <servlet-name>book-home</servlet-name>
        <jsp-file>/book_home.jsp</jsp-file>
    </servlet>
    <servlet>
        <servlet-name>submit-book</servlet-name>
        <jsp-file>/submit_book.jsp</jsp-file>
    </servlet>
     <servlet>
        <servlet-name>edit-book</servlet-name>
        <jsp-file>/edit_book.jsp</jsp-file>
    </servlet>
    <servlet-mapping>
        <servlet-name>ApproveReview</servlet-name>
        <url-pattern>/ApproveReview</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>DeleteReview</servlet-name>
        <url-pattern>/delete-review</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>books</servlet-name>
        <url-pattern>/books</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>my-books</servlet-name>
        <url-pattern>/my-books</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>book-home</servlet-name>
        <url-pattern>/book-home</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>submit-book</servlet-name>
        <url-pattern>/submit-book</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>edit-book</servlet-name>
        <url-pattern>/edit-book</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <servlet>
        <servlet-name>home</servlet-name>
        <jsp-file>/home.jsp</jsp-file>
    </servlet>
    <servlet>
        <servlet-name>contact-us</servlet-name>
        <jsp-file>/contact-us.jsp</jsp-file>
    </servlet>
    <servlet>
        <servlet-name>term-of-use</servlet-name>
        <jsp-file>/term-of-use.jsp</jsp-file>
    </servlet>
    <servlet>
        <servlet-name>faq</servlet-name>
        <jsp-file>/faq.jsp</jsp-file>
    </servlet>
    <servlet>
        <servlet-name>submit-review</servlet-name>
        <jsp-file>/submit-review.jsp</jsp-file>
    </servlet>
    <servlet>
        <servlet-name>submit-request</servlet-name>
        <jsp-file>/submit-request.jsp</jsp-file>
    </servlet>
    <servlet>
        <servlet-name>books</servlet-name>
        <jsp-file>/books.jsp</jsp-file>
    </servlet>
    <servlet>
        <servlet-name>about-us</servlet-name>
        <jsp-file>/about-us.jsp</jsp-file>
    </servlet>
    <servlet>
        <servlet-name>admin</servlet-name>
        <jsp-file>/admin.jsp</jsp-file>
    </servlet>
    <servlet>
        <servlet-name>ApproveReview</servlet-name>
        <servlet-class>com.reviewmyprof.webservice.review.ApproveReview</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>home</servlet-name>
        <url-pattern>/home</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>submit-review</servlet-name>
        <url-pattern>/submit-review</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>submit-request</servlet-name>
        <url-pattern>/submit-request</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>about-us</servlet-name>
        <url-pattern>/about-us</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>admin</servlet-name>
        <url-pattern>/admin</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>contact-us</servlet-name>
        <url-pattern>/contact-us</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>term-of-use</servlet-name>
        <url-pattern>/term-of-use</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>faq</servlet-name>
        <url-pattern>/faq</url-pattern>
    </servlet-mapping>
</web-app>

CorsFilter已添加到web.xml中。从此被删除了。

<filter>
        <filter-name>CorsFilter</filter-name>
        <filter-class>com.reviewmyprof.webservice.book.Book</filter-class>
        <init-param>
            <param-name>cors.allowed.methods</param-name>
            <param-value>GET, POST, PUT, DELETE, OPTIONS, HEAD</param-value>
        </init-param>
    </filter>

0 个答案:

没有答案
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