1. 首页
  2. 问答
  3. 请求的资源（）不可用0在春天mvc mongodb

请求的资源（）不可用0在春天mvc mongodb

2013-12-12 58 views
1

我是Spring数据MongoDB中的新手。当我运行我的项目时，我在tomcat中发现了这个错误。无法弄清楚问题出在哪里。谁能帮我请求的资源（）不可用0在春天mvc mongodb

这里是我的代码：

的web.xml

<?xml version="1.0" encoding="UTF-8"?> 

<web-app xmlns="http://java.sun.com/xml/ns/javaee" 
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 
     version="3.0"> 
    <servlet> 
     <servlet-name>dispatcher</servlet-name> 
     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
     <load-on-startup>1</load-on-startup> 
    </servlet> 
    <servlet-mapping> 
     <servlet-name>dispatcher</servlet-name> 
     <url-pattern>/</url-pattern> 
    </servlet-mapping> 
    <context-param> 
     <param-name>contextConfigLocation</param-name> 
     <param-value>/WEB-INF/dispatcher-servlet.xml</param-value> 
    </context-param> 
    <session-config> 
     <session-timeout> 
      30 
     </session-timeout> 
    </session-config> 
</web-app>

调度-servlet.xml中

<?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:context="http://www.springframework.org/schema/context" 
     xmlns:p="http://www.springframework.org/schema/p" 
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd"> 

    <context:component-scan base-package="com.alfred" /> 

    <!-- Factory bean that creates the Mongo instance --> 
    <bean id="mongo" class="org.springframework.data.mongodb.core.MongoFactoryBean"> 
     <property name="host" value="localhost" /> 
    </bean> 

    <!-- MongoTemplate for connecting and quering the documents in the database --> 
    <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate"> 
     <constructor-arg name="mongo" ref="mongo" /> 
     <constructor-arg name="databaseName" value="StudentManagement" /> 
    </bean> 

    <!-- Use this post processor to translate any MongoExceptions thrown in @Repository annotated classes --> 
    <bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" /> 


    <bean id="jspViewResolver" 
      class="org.springframework.web.servlet.view.InternalResourceViewResolver" 
      p:prefix="/WEB-INF/jsp/" 
      p:suffix=".jsp" /> 

</beans>

我控制器

package com.alfred.controller; 

import com.alfred.dao.StudentService; 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.ui.ModelMap; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RequestMethod; 

/** 
* 
* @author jmangovn 
*/ 
public class StudentController { 
    @Autowired 
    private StudentService studentService; 

    @RequestMapping(value = "/student", method = RequestMethod.GET) 
    public String getAllStudent(ModelMap model) { 
     model.addAttribute("allStudent", studentService.getListStudent()); 
     return "output"; 
    } 

}

output.jsp的

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> 
<%@page contentType="text/html" pageEncoding="UTF-8"%> 
<!DOCTYPE html> 
<html> 
    <head> 
     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
     <title>JSP Page</title> 
    </head> 
    <body> 
     <table border="1"> 
      <c:forEach var="student" items="${allStudent}"> 
       <tr> 
        <td>${student.fullName}</td><td> 
       </tr> 
      </c:forEach> 
     </table> 
    </body> 
</html>

StudentService

package com.alfred.dao; 

import com.alfred.model.Student; 
import java.util.List; 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.data.mongodb.core.MongoTemplate; 
import org.springframework.data.mongodb.core.query.Criteria; 
import org.springframework.data.mongodb.core.query.Query; 
import org.springframework.stereotype.Repository; 


@Repository 
public class StudentService implements StudentDAO { 
    @Autowired 
    private MongoTemplate mongoTemplate; 

    @Override 
    public List<Student> getListStudent() { 
     return mongoTemplate.findAll(Student.class); 
    } 

    @Override 
    public List<Student.ClassInfo> findByDistinctClass() { 
     return mongoTemplate.findAll(Student.ClassInfo.class); 
//  return mongoTemplate.getCollection("Students").distinct("class_id"); 
    } 

//  public List<Student.ClassInfo> findByDistinct(String key) { 
//  return mongoTemplate.findAll(Student.ClassInfo.class); 
//  return mongoTemplate.getCollection("Students").distinct(key); 
// } 
    @Override 
    public List<Student> getListStudentByClass(String classId) { 
     Query query = new Query(); 
     query.addCriteria(Criteria.where("class").is(
     Query.query(
       Criteria.where("class_id").is(classId)).getQueryObject())); 
     return mongoTemplate.find(query, Student.class); 
    } 

}

后在我的控制器添加@Controller，我得到了另一个错误

type Exception report 

message 

description The server encountered an internal error() that prevented it from fulfilling this request. 

exception 

javax.servlet.ServletException: Servlet.init() for servlet dispatcher threw exception 
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462) 
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) 
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562) 
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395) 
    org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:306) 
    org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:323) 
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1719) 
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    java.lang.Thread.run(Thread.java:744) 
root cause 

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'studentController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.alfred.dao.StudentService com.alfred.controller.StudentController.studentService; nested exception is java.lang.IllegalArgumentException: Can not set com.alfred.dao.StudentService field com.alfred.controller.StudentController.studentService to com.sun.proxy.$Proxy21 
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:288) 
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1120) 
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522) 
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461) 
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) 
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) 
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) 
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) 
    org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:607) 
    org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932) 
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) 
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:647) 
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:598) 
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:661) 
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:517) 
    org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:458) 
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:138) 
    javax.servlet.GenericServlet.init(GenericServlet.java:160) 
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462) 
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) 
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562) 
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395) 
    org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:306) 
    org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:323) 
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1719) 
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    java.lang.Thread.run(Thread.java:744) 
root cause 

org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.alfred.dao.StudentService com.alfred.controller.StudentController.studentService; nested exception is java.lang.IllegalArgumentException: Can not set com.alfred.dao.StudentService field com.alfred.controller.StudentController.studentService to com.sun.proxy.$Proxy21 
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:514) 
    org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) 
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285) 
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1120) 
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522) 
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461) 
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) 
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) 
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) 
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) 
    org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:607) 
    org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932) 
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) 
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:647) 
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:598) 
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:661) 
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:517) 
    org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:458) 
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:138) 
    javax.servlet.GenericServlet.init(GenericServlet.java:160) 
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462) 
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) 
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562) 
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395) 
    org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:306) 
    org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:323) 
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1719) 
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    java.lang.Thread.run(Thread.java:744) 
root cause 

java.lang.IllegalArgumentException: Can not set com.alfred.dao.StudentService field com.alfred.controller.StudentController.studentService to com.sun.proxy.$Proxy21 
    sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:164) 
    sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:168) 
    sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:81) 
    java.lang.reflect.Field.set(Field.java:741) 
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:510) 
    org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) 
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285) 
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1120) 
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522) 
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461) 
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) 
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) 
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) 
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) 
    org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:607) 
    org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932) 
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) 
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:647) 
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:598) 
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:661) 
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:517) 
    org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:458) 
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:138) 
    javax.servlet.GenericServlet.init(GenericServlet.java:160) 
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462) 
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) 
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562) 
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395) 
    org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:306) 
    org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:323) 
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1719) 
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    java.lang.Thread.run(Thread.java:7

44）

来源

2013-12-12 user3027246

+0

你打哪个网址会给出错误？ –

+0

output.jsp在哪里？ –

+0

output.jsp位于WEB-INF/jsp中。而我的网址是http：// localhost：8080/SpringMongo/student – user3027246

回答

0

您必须添加@Controller注释上StudentController类，因为如果不这样做的StudentController不会被春天的认可。

来源

2013-12-12 09:47:53

+0

谢谢。但添加@Controller后，我得到了另一个错误 – user3027246

+0

什么错误？检查你的请求映射，并将''添加到dispatcher-servlet.xml中。你在浏览器中输入什么网址，以及你的项目的根网址是什么？ –

+0

@FlyingDumpling我认为我们要给这个团队加标签！他的控制器没有被拾取，之后'@ RequestMapping'注释未配置。 –

0

尝试将<mvc:annotation-driven/>添加到dispatcher-servlet.xml结合Flying Dumpling建议的@Controller。

<mvc:annotation-driven/>寄存器以支持使用 注释如@RequestMapping，@ExceptionHandler和其它注释控制器方法 中处理请求的RequestMappingHandlerMapping， 一个RequestMappingHandlerAdapter和 ExceptionHandlerExceptionResolver（等等）。

来源

2013-12-12 10:22:51

相关问题

 相关问题