java.lang.ClassNotFoundException: org.springframework.core.io.Resource

匿名 (未验证) 提交于 2019-12-03 02:20:02

问题:

I'm using spring 4.0.5, Hibernate 4.3.5 and JSF for web developpement in eclipse, and this is the content of my lib folder :

When I run my project I get this error :

java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/EMaEval]]     at java.util.concurrent.FutureTask.report(Unknown Source)     at java.util.concurrent.FutureTask.get(Unknown Source)     at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)     at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:799)     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)     at java.util.concurrent.FutureTask.run(Unknown Source)     at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)     at java.lang.Thread.run(Unknown Source) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/EMaEval]]     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)     ... 6 more Caused by: java.lang.NoClassDefFoundError: org/springframework/core/io/Resource     at java.lang.Class.getDeclaredFields0(Native Method)     at java.lang.Class.privateGetDeclaredFields(Unknown Source)     at java.lang.Class.getDeclaredFields(Unknown Source)     at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:106)     at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:261)     at org.apache.catalina.startup.WebAnnotationSet.loadApplicationListenerAnnotations(WebAnnotationSet.java:90)     at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:63)     at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:403)     at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:879)     at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:374)     at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)     at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5355)     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)     ... 6 more Caused by: java.lang.ClassNotFoundException: org.springframework.core.io.Resource     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)     ... 20 more 

these are the configuration files :

web.xml

  <?xml version="1.0" encoding="ASCII"?>     <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="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" version="3.0">       <display-name></display-name>       <context-param>         <param-name>contextConfigLocation</param-name>         <param-value>/WEB-INF/classes/application-context.xml</param-value>       </context-param>       <listener>         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>       </listener>       <listener>         <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>       </listener>       <servlet>         <servlet-name>Faces Servlet</servlet-name>         <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>         <load-on-startup>1</load-on-startup>       </servlet>       <servlet-mapping>         <servlet-name>Faces Servlet</servlet-name>         <url-pattern>*.jsf</url-pattern>       </servlet-mapping>       <welcome-file-list>         <welcome-file>index.jsf</welcome-file>       </welcome-file-list>     </web-app> 

application-context.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:tx="http://www.springframework.org/schema/tx"     xmlns:context="http://www.springframework.org/schema/context"     xmlns:aop="http://www.springframework.org/schema/aop"     xmlns:security="http://www.springframework.org/schema/security"     xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd         http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-4.0.xsd         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd         http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd         http://www.springframework.org/ schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">      <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">         <property name="driverClass" value ="org.postgresql.Driver" />         <property name="user" value="postgres" />         <property name="password" value="toor"/>         <property name="jdbcUrl" value="jdbc:postgresql://172.16.83.128:5432/emaeval" />     </bean>     <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">         <property name="dataSource" ref="dataSource" />         <property name="packagesToScan" value="com.models" />         <property name="hibernateProperties">             <props>                 <prop key="hiberante.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>                 <prop key="hibernate.connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</prop>             </props>         </property>      </bean>     <bean id="tansactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">         <property name="sessionFactory" ref="sessionFactory"></property>     </bean>     <tx:annotation-driven transaction-manager="transactionManager"/>     <context:annotation-config/>     <context:component-scan base-package="com"></context:component-scan> </beans> 

How can I solve this probelm ?

回答1:

Make sure, following jar file included in your class path and lib folder.

spring-core-3.0.5.RELEASE.jar

if you are using maven, make sure you have included dependency for spring-core-3xxxxx.jar file

<dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-core</artifactId>  <version>${org.springframework.version}</version> </dependency> 

Note : Replace ${org.springframework.version} with version number.



回答2:

org.springframework.core.io.Resource is part of spring-core-<version>.jar

But this lib is already in your lib folder. So I guess it is just a Deployment Problem. -- Try to clean your server and redeploy your application.



回答3:

Right-Click on your project -> Properties -> Deployment Assembly.

On the Left-hand panel Click 'Add' and add the 'Project and External Dependencies'.

'Project and External Dependencies' will have all the spring related jars deployed along with your application



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