出现“ HTTP状态500-无法为JSP编译类”错误

Question

I am getting following error when i am trying to run a spring based hello world program. 当我尝试运行基于spring的hello world程序时，出现以下错误。 please refer the below code and guide me accordingly. 请参考以下代码，并据此为我提供指导。

JDK 1.8 Tomcat 7.0 JDK 1.8 Tomcat 7.0

HelloWorldPrac.java HelloWorldPrac.java

package com.prac;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.ui.ModelMap;

@Controller
@RequestMapping("/hello")
public class HelloWorldPrac {

    @RequestMapping(method = RequestMethod.GET)
       public String printHello(ModelMap model) {
        System.out.println("hi from print hello");
        model.addAttribute("message", "Hello Spring MVC Framework!");

          return "hello";
       }
}

hello.jsp hello.jsp

    <%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>HelloWorld</title>
</head>
<body>
    <h2>${message}</h2>
</body>
</html>

Web.xml Web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
    <display-name>SpringPrac</display-name>

    <!--  Changed for hello world program test -->

    <servlet>
         <servlet-name>mvc-dispatcher</servlet-name>
         <servlet-class>
             org.springframework.web.servlet.DispatcherServlet
         </servlet-class>
         <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>mvc-dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping> 

</web-app>

mvc-dispatcher-servlet.xml mvc-dispatcher-servlet.xml

<beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:context="http://www.springframework.org/schema/context"
        xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation=" http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context-3.0.xsd 
http://www.springframework.org/schema/mvc 
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
     <context:component-scan base-package="com.prac"></context:component-scan>
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix">
                <value>/WEB-INF/jsp/</value>
            </property>
            <property name="suffix">
                <value>.jsp</value>
            </property>
        </bean>
</beans>

Error Stack 错误堆栈

Nov 16, 2015 1:30:36 PM org.apache.jasper.compiler.JDTCompiler$1 findType
SEVERE: Compilation error
org.eclipse.jdt.internal.compiler.classfmt.ClassFormatException
    at org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader.<init>(ClassFileReader.java:372)
    at org.apache.jasper.compiler.JDTCompiler$1.findType(JDTCompiler.java:232)
    at org.apache.jasper.compiler.JDTCompiler$1.findType(JDTCompiler.java:188)
    at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:113)
    at org.eclipse.jdt.internal.compiler.lookup.UnresolvedReferenceBinding.resolve(UnresolvedReferenceBinding.java:49)
    at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.resolveType(BinaryTypeBinding.java:122)
    at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.getTypeFromTypeSignature(LookupEnvironment.java:1335)
    at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.getTypeFromVariantTypeSignature(LookupEnvironment.java:1391)
    at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.getTypeArgumentsFromSignature(LookupEnvironment.java:1172)
    at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.getTypeFromTypeSignature(LookupEnvironment.java:1340)
    at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.createMethod(BinaryTypeBinding.java:550)
    at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.createMethods(BinaryTypeBinding.java:630)
    at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.cachePartsFrom(BinaryTypeBinding.java:365)
    at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.createBinaryTypeFrom(LookupEnvironment.java:688)
    at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.createBinaryTypeFrom(LookupEnvironment.java:667)
    at org.eclipse.jdt.internal.compiler.Compiler.accept(Compiler.java:296)
    at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:118)
    at org.eclipse.jdt.internal.compiler.lookup.UnresolvedReferenceBinding.resolve(UnresolvedReferenceBinding.java:49)
    at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.resolveType(BinaryTypeBinding.java:122)
    at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage(PackageBinding.java:168)
    at org.eclipse.jdt.internal.compiler.lookup.Scope.getPackage(Scope.java:2379)
    at org.eclipse.jdt.internal.compiler.ast.ParameterizedQualifiedTypeReference.internalResolveLeafType(ParameterizedQualifiedTypeReference.java:138)
    at org.eclipse.jdt.internal.compiler.ast.ParameterizedQualifiedTypeReference.internalResolveType(ParameterizedQualifiedTypeReference.java:132)
    at org.eclipse.jdt.internal.compiler.ast.ParameterizedQualifiedTypeReference.resolveType(ParameterizedQualifiedTypeReference.java:351)
    at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.resolveTypeFor(SourceTypeBinding.java:1374)
    at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.fields(SourceTypeBinding.java:699)
    at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.faultInTypesForFieldsAndMethods(SourceTypeBinding.java:677)
    at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.faultInTypes(CompilationUnitScope.java:469)
    at org.eclipse.jdt.internal.compiler.Compiler.process(Compiler.java:756)
    at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:468)
    at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:459)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:378)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
    at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
    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.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
    at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
    at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:262)
    at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1180)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:950)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
    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.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
    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:1002)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

Answer 1

If you are using JSP then you must use JSP tags, like so: 如果使用的是JSP，则必须使用JSP标记，如下所示：

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> // include in your document.
<c:out value="${message}"/>

You have used a freemarker/GSP syntax. 您使用了freemarker / GSP语法。

Also this post can be helpful and this tutorial. 此外，这篇文章和本教程也可能会有所帮助。

If you would like to use your suntax, you could follow this tutorial on how to use freemarker. 如果您想使用suntax，可以按照本教程来学习如何使用freemarker。

Answer 2

Please modify the files accordingly from below. 请从下面相应地修改文件。 1. change the mvc-dipatcher servlet.xml as below 1.如下更改mvc-dipatcher servlet.xml

    <beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
    http://www.springframework.org/schema/beans     
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc.xsd">
 <context:component-scan base-package="com.prac"></context:component-scan>
<!--  <mvc:annotation-driven /> -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix">
            <value>/WEB-INF/jsp/</value>
        </property>
        <property name="suffix">
            <value>.jsp</value>
        </property>
    </bean>
</beans>

Yout HelloWorldPrac as follows Yout HelloWorldPrac如下

 @Controller @RequestMapping("/hello") public class HelloWorldPrac { @RequestMapping( value = "/hi" , method = RequestMethod.GET) public String printHello(ModelMap model) { System.out.println("hi from print hello"); model.addAttribute("message", "Hello Spring MVC Framework!"); return "hello"; }

} }

出现“ HTTP状态500-无法为JSP编译类”错误

问题描述

2 个解决方案

解决方案1
0 2015-11-16 08:41:21

解决方案2
0

出现“ HTTP状态500-无法为JSP编译类”错误

问题描述

2 个解决方案

解决方案1 0 2015-11-16 08:41:21

解决方案2 0

解决方案1
0 2015-11-16 08:41:21

解决方案2
0