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JstlView增加了路徑前綴遞歸造成的StackOverflowError

2011-08-23 56 views
0

所有，JstlView增加了路徑前綴遞歸造成的StackOverflowError

我寫一個演示應用學習

org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping

類的用法。當我運行應用程序時;我得到一個關於流錯誤的堆棧，並且日誌顯示/ WEB-INF/view /正在以URL遞歸的形式遞歸前綴。請幫助解決這個問題。

這裏的servlet的context.xml中

<?xml version="1.0" encoding="UTF-8"?> 
<beans:beans xmlns="http://www.springframework.org/schema/mvc" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans" 
    xmlns:p="http://www.springframework.org/schema/p" 
    xsi:schemaLocation=" 
     http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd 
     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> 

    <!-- DispatcherServlet Context: defines this servlet's request-processing 
    infrastructure --> 

    <!-- Enables the Spring MVC @Controller programming model --> 
    <annotation-driven /> 

    <beans:bean id="projectDao" class="chomu.dao.ProjectDaoImpl" /> 
    <beans:bean id="projectService" class="chomu.service.ProjectPersistenceService" /> 

    <!-- Bind to a naming convention for controllers and views --> 
    <!-- p:interceptors-ref="localeChangeInterceptor" --> 
    <beans:bean id="classnameControllerMappings" 
    class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping" 
    p:order="1" p:caseSensitive="true"> 
    <beans:property name="defaultHandler"> 
     <beans:bean 
     class="org.springframework.web.servlet.mvc.UrlFilenameViewController" /> 
    </beans:property> 
    </beans:bean> 

    <!-- Enables annotated POJO @Controllers --> 
    <beans:bean 
    class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" /> 

    <!-- Enables plain Controllers --> 
    <beans:bean 
    class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter" /> 

    <!-- Resolves views selected for rendering by @Controllers to .jsp resources 
    in the /WEB-INF/views directory --> 
    <beans:bean 
    class="org.springframework.web.servlet.view.UrlBasedViewResolver"> 
    <beans:property name="viewClass" 
     value="org.springframework.web.servlet.view.JstlView" /> 
    <beans:property name="prefix" value="/WEB-INF/views/" /> 
    <beans:property name="suffix" value=".jsp" /> 
    </beans:bean> 

    <!-- Imports user-defined @Controller beans that process client requests --> 
    <beans:import resource="controllers.xml" /> 

</beans:beans>

的controllers.xml

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" 
    xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:tx="http://www.springframework.org/schema/tx" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
     http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-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/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> 

    <!-- Scans within the base package of the application for @Components to 
    configure as beans --> 
    <context:component-scan base-package="chomu" /> 

    <tx:annotation-driven proxy-target-class="true" /> 
    <mvc:annotation-driven /> 

    <mvc:resources mapping="/resources/**" location="/resources/" /> 

    <bean id="validator" 
    class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" /> 
</beans>

控制器代碼

package chomu.controller; 

import java.util.ArrayList; 
import java.util.List; 

import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.stereotype.Controller; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RequestMethod; 
import org.springframework.web.servlet.ModelAndView; 

import chomu.domain.Project; 
import chomu.service.ProjectPersistenceService; 

/** 
* @author amisr1 
* @dateCreated Aug 18, 2011 
* @version $Revsion:$ 
* 
*   $LastChangedBy:$ 
* @since 
*/ 
@Controller 
public class ProjectController { 

    @Autowired 
    private ProjectPersistenceService projectService; 

    /** 
    * @return the projectService 
    */ 
    public ProjectPersistenceService getProjectService() { 
    return projectService; 
    } 

    /** 
    * @param projectService 
    *   the projectService to set 
    */ 
    public void setProjectService(ProjectPersistenceService projectService) { 
    this.projectService = projectService; 
    } 

    @RequestMapping(method=RequestMethod.GET) 
    public List<Project> list(){ 
    List<Project> projectList = new ArrayList<Project>(); 
    projectList.add(projectService.getProject(2L)); 
    projectList.add(projectService.getProject(3L)); 
    return projectList; 
    } 

}

和JSP

<?xml version="1.0" encoding="ISO-8859-1" ?> 
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.0" 
    xmlns:c="http://java.sun.com/jsp/jstl/core" version="2.0"> 
    <jsp:directive.page contentType="text/html; charset=ISO-8859-1" 
     pageEncoding="ISO-8859-1" session="false" /> 
    <jsp:output doctype-root-element="html" 
     doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN" 
     doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" 
     omit-xml-declaration="true" /> 
    <html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<title>Insert title here</title> 
</head> 
<body> 
    <table> 
     <c:forEach var="project" items="${projectList}"> 
      <tr> 
       <td>${project.id}</td> 
       <td>${project.name}</td> 
      </tr> 
     </c:forEach> 
    </table> 
</body> 
    </html> 
</jsp:root>

我得到類似日誌下面的一個消息之前，我的日食崩潰：

DEBUG: org.springframework.web.servlet.view.JstlView - Forwarding to resource [/WEB-INF/views/' 
DEBUG: org.springframework.web.servlet.view.JstlView - Forwarding to resource [/WEB-INF/views/WEB-INF/views/' 
DEBUG: org.springframework.web.servlet.view.JstlView - Forwarding to resource [/WEB-INF/views/WEB-INF/views/WEB-INF/views/project/list' 
Aug 22, 2011 8:02:35 PM org.apache.catalina.core.ApplicationDispatcher invoke 
SEVERE: Servlet.service() for servlet appServlet threw exception 
java.lang.StackOverflowError 
    at org.apache.catalina.core.ApplicationHttpRequest.getSession(ApplicationHttpRequest.java:505) 
    at javax.servlet.http.HttpServletRequestWrapper.getSession(HttpServletRequestWrapper.java:216) 
    at org.apache.catalina.core.ApplicationHttpRequest.getSession(ApplicationHttpRequest.java:547) 
    at javax.servlet.http.HttpServletRequestWrapper.getSession(HttpServletRequestWrapper.java:216) 
    at org.apache.catalina.core.ApplicationHttpRequest.getSession(ApplicationHttpRequest.java:547)

進一步壓低日誌

at org.springframework.web.context.request.ServletRequestAttributes.updateAccessedSessionAttributes(ServletRequestAttributes.java:222) 
    at org.springframework.web.context.request.AbstractRequestAttributes.requestCompleted(AbstractRequestAttributes.java:48) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:664) 
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) 
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436) 
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374) 
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302) 
    at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238) 
    at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250) 
    at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047) 
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644) 
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

當我實際使用作爲UrlBasedViewResolver拼圖堆棧跟蹤中看到InternalResourceView我甚至更多。 在拋出錯誤之前，WEB-INF/views實際上是前綴大約50多倍，我已經粘貼了它的較小表示以避免冗長。

不知道是什麼造成這種影響。

來源

2011-08-23 Anadi Misra

回答

0

得到它從春季論壇球員一些幫助工作，我做了以下修改：

  • 刪除了註釋驅動廣告MVC：從servlet上下文和控制器XML分別註釋驅動標籤。

在servlet-context.xml中

<?xml version="1.0" encoding="UTF-8"?> 
<beans:beans xmlns="http://www.springframework.org/schema/mvc" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans" 
    xmlns:p="http://www.springframework.org/schema/p" 
    xsi:schemaLocation=" 
     http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd 
     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> 

    <!-- DispatcherServlet Context: defines this servlet's request-processing 
    infrastructure --> 

    <beans:bean id="projectDao" class="chomu.dao.ProjectDaoImpl" /> 
    <beans:bean id="projectService" class="chomu.service.ProjectPersistenceService" /> 

    <!-- Bind to a naming convention for controllers and views --> 
    <!-- p:interceptors-ref="localeChangeInterceptor" --> 
    <beans:bean id="classnameControllerMappings" 
    class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping" 
    p:order="1" p:caseSensitive="true"> 
    <beans:property name="defaultHandler"> 
    <beans:bean 
     class="org.springframework.web.servlet.mvc.UrlFilenameViewController" /> 
    </beans:property> 
    </beans:bean> 

    <!-- Enables annotated POJO @Controllers --> 
    <beans:bean 
    class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" /> 

    <!-- Enables plain Controllers --> 
    <beans:bean 
    class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter" /> 

    <!-- Resolves views selected for rendering by @Controllers to .jsp resources 
    in the /WEB-INF/views directory --> 
    <beans:bean 
    class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
    <beans:property name="viewClass" 
     value="org.springframework.web.servlet.view.JstlView" /> 
    <beans:property name="prefix" value="/WEB-INF/views/" /> 
    <beans:property name="suffix" value=".jsp" /> 
    </beans:bean> 

    <!-- Imports user-defined @Controller beans that process client requests --> 
    <beans:import resource="controllers.xml" /> 

</beans:beans>

的controllers.xml

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" 
    xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:tx="http://www.springframework.org/schema/tx" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
     http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-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/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> 

    <!-- Scans within the base package of the application for @Components to 
    configure as beans --> 
    <context:component-scan base-package="chomu" /> 

    <mvc:resources mapping="/resources/**" location="/resources/" /> 

    <bean id="validator" 
    class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" /> 
</beans>

但根本原因是在servlet映射中的故障，因此改變了Dispatechr servlet映射到以下在web.xml中

<!-- Processes application requests --> 
<servlet> 
    <servlet-name>appServlet</servlet-name> 
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
    <init-param> 
     <param-name>contextConfigLocation</param-name> 
     <param-value>classpath:spring/app/servlet-context.xml</param-value> 
    </init-param> 
    <load-on-startup>1</load-on-startup> 
</servlet> 

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

將/ *更改爲/導致視圖的遞歸添加，因爲它無法找到正確的視圖。

彈簧論壇主題是here

來源

2011-08-24 13:17:54

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