java - 运行Spring MVC项目时出错

Question

我以前从未遇到此错误。错误是某种豆刷新似乎没有发生。我在其他项目中也拥有与下面相同的文件，并且工作正常。但是，当我用相同的文件创建一个新项目并尝试在maven安装后运行时。它不起作用。

我已经尝试过刷新项目，并再次进行行家清理和安装，甚至清理Tomecat Work Directory，以确保以前的运行缓存不存在。但是，似乎没有任何效果。

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>EduYouth</display-name>
  <welcome-file-list>
    <welcome-file>/jsp/Welcome.jsp</welcome-file>

  </welcome-file-list>
  <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>


  <listener>

    <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
  </listener>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
</web-app>

调度程序

<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"
    xmlns:p="http://www.springframework.org/schema/p"
    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-3.0.xsd">


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

<context:property-placeholder  ignore-unresolvable="true" location="classpath:config.properties" />
 <tx:annotation-driven transaction-manager="transactionManager" />
 <bean     id="transactionManager"           class="org.springframework.orm.hibernate3.HibernateTransactionManager"            p:sessionFactory-ref="sessionFactory" />


   <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"  p:packagesToScan="com.model">
        <property name="dataSource" ref="dataSource"/>


        <property name="hibernateProperties">
          <props>        
                <prop key="hibernate.dialect">${hibernate.dialect}</prop>          
                <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>

           </props>
        </property>

 </bean>

 <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
        <property name="mediaTypes">
            <map>
                <entry key="json" value="application/json" />
                <entry key="xml" value="text/xml" />
            </map>
        </property>
        <property name="defaultContentType" value="text/html" />
        <property name="defaultViews">
            <list>
                <bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView" />
            </list>
        </property>
    </bean>


<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"
            p:driverClassName="${jdbc.driverClassName}"
            p:url="${jdbc.url}"
            p:username="${jdbc.username}"
            p:password="${jdbc.password}"/>
<mvc:annotation-driven/>

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  

        <property name="prefix" value="/jsp/" />  

        <property name="suffix" value=".jsp" />  


    </bean>
    </beans>

applicationContext.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:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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">


    <mvc:annotation-driven />

 <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
        <property name="mediaTypes">
            <map>
                <entry key="json" value="application/json" />
                <entry key="xml" value="text/xml" />
            </map>
        </property>
        <property name="defaultContentType" value="text/html" />
        <property name="defaultViews">
            <list>
                <bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView" />
            </list>
        </property>
    </bean>

    <!-- Enable annotation driven controllers, validation etc... -->


 <mvc:resources location="/images/" mapping="/images/**"/>
   <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix" value="/jsp/" />

        <property name="suffix" value=".jsp" />

    </bean>




</beans> 

错误

  > SEVERE: Exception sending context destroyed event to listener instance
    > of class org.springframework.web.context.ContextLoaderListener
    > java.lang.IllegalStateException: BeanFactory not initialized or
    > already closed - call 'refresh' before accessing beans via the
    > ApplicationContext    at
    > org.springframework.context.support.AbstractRefreshableApplicationContext.getBeanFactory(AbstractRefreshableApplicationContext.java:170)
    >   at
    > org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:921)
    >   at
    > org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:895)
    >   at
    > org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:841)
    >   at
    > org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:579)
    >   at
    > org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:115)
    >   at
    > org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:5157)
    >   at
    > org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5830)
    >   at
    > org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:221)
    >   at
    > org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:149)
    >   at
    > org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1694)
    >   at
    > org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1684)
    >   at java.util.concurrent.FutureTask.run(FutureTask.java:266)     at
    > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    >   at
    > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    >   at java.lang.Thread.run(Thread.java:748

）

Answer 1

经过大量的清理工作并用Tomcat Work Directory的清理方法重新安装了maven plus之后，也许这不是导致上述错误的原因。

最后，它在更改<contex-param>中的值后起作用。我不明白为什么它会像上一次运行一样默认在类路径下获取资源。我在上下文路径中另外添加了resources。

下面的添加/resources/..修复程序起作用，因为该文件夹位于src下，并且以前也可以正常工作。

 <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:resources/applicationContext.xml</param-value>  </context-param>