求助org.springframework.beans.factory.CannotLoadBeanClassException:问题

Question

我在学习 j2ee ,  准备结合spring、 struts、 ibatis写一个简单的数据库操作demo。具体是在JSP页面上有对应数据库属性的几个文本框，输入一天记录后，点击submit  后希望插入到数据库中。各位大侠给看看。
代码如下：
web.xml<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
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_2_5.xsd">
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring.xml</param-value>
</context-param>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>

Answer 1

spring.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"> <bean id="datasource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName">
    <value>com.mysql.jdbc.Driver</value>
   </property>
   <property name="username">
     <value>root</value>
   </property>
  <property name="password">
     <value>360buy</value>
   </property>
   <property name="url">
     <value>jdbc:mysql://localhost:3306/zhuhua</value>
   </property>
</bean>

<bean id="sqlmapclient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">  
   <property name="configLocation">
      <value>/resource/sqlmap-config.xml</value>
   </property>
</bean>

<bean id="testDao" class="org.testdao.TestDao"> 
<property name="dataSource">
<ref bean="datasource"/>
</property>
<property name="sqlMapClient">
<ref bean="sqlmapclient"/>
</property>
</bean>
<bean id="add" class="org.action.NodeAction">
<property name="testdao">
<ref bean="testDao"/>
</property>
</bean>

</beans>struts.xml
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE struts PUBLIC 
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://Struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<include file="struts-default.xml"/>
<package name="default" extends="struts-default">
<action name="addnode" class="add">
<result name="success">/ok.jsp</result>
</action>
</package>
</struts>struts.properties
struts.objectFactory=springsqlmap.xml<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMap 
PUBLIC  "-//iBATIS.com//DTD SQL Map 2.0//EN"
    "http://www.ibatis.com/dtd/sql-map-2.dtd">
    
<sqlMap namespace="p"> <select id="getNode" parameterClass="java.lang.String" resultClass="org.vo.Node">
select id  ,ip , name  from node where id=#id#
</select> <insert id="insertNode" parameterClass="org.vo.Node">
insert into node(id,ip,name) values(#id#,#ip#,#name#)
</insert>

<update id="updateNode"  parameterClass="java.lang.String"  >
update node set name="qingdao" where id=#id#
</update>

<delete id="deleteNode" parameterClass="java.lang.String" >
delete from node where ip=#ip#
</delete>

<select id="getAllNode" resultClass="org.vo.Node">
select * from node
</select>
</sqlMap>
sqlmap-config.xml<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMapConfig  
PUBLIC  "-//iBATIS.com//DTD SQL Map Config 2.0/" 
"http://www.ibatis.com/dtd/sql-map-config-2.dtd"><sqlMapConfig>
<settings
cacheModelsEnabled="true" 
enhancementEnabled="true"
lazyLoadingEnabled="false"
errorTracingEnabled="true" 
maxRequests="32"
maxSessions="10"
maxTransactions="5"
useStatementNamespaces="true"
/>
<transactionManager type="JDBC" >
<dataSource type="SIMPLE">
<property name="JDBC.Driver" value="com.mysql.jdbc.Driver"/>
<property name="JDBC.ConnectionURL" value="jdbc:mysql://localhost:3306/test"/>
<property name="JDBC.Username" value="root"/>
<property name="JDBC.Password" value="123"/>
</dataSource>
</transactionManager>
<sqlMap resource="sqlmap.xml"/>
</sqlMapConfig>

Answer 2

src 源包下：
package org.vo;
Node.java
public class Node {
private String id;
private String ip;
private String name;
public Node()
{
}
public Node(String id,String ip,String name)
{
this.id=id;
this.ip=ip;
this.name=name;
}

public void setId(String id) {
this.id = id;
}
public String getId() {
return id;
}
public void setIp(String ip) {
this.ip = ip;
}
public String getIp() {
return ip;
}
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
}NodeAction .java
package org.action;import org.testdao.TestDao;
import org.vo.Node;
import com.opensymphony.xwork2.ActionSupport;public class NodeAction extends ActionSupport{ private static final long serialVersionUID = 1L;
private String id;
private String ip;
private String name;
private TestDao testdao;

public void setId(String id) {
this.id = id;
}
public String getId() {
return id;
}
public void setIp(String ip) {
this.ip = ip;
}
public String getIp() {
return ip;
}
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
@Override
public String execute() throws Exception {

Node node=new Node();
node.setId(getId());
node.setIp(getIp());
node.setName(getName());

testdao.save(node);

return SUCCESS;
}
public TestDao getTestdao() {
return testdao;
}
public void setTestdao(TestDao testdao) {
this.testdao = testdao;
}

}
TestDao.java
package org.testdao;
import java.util.List;
import org.springframework.orm.ibatis.support.SqlMapClientDaoSupport;
import org.vo.Node;
public class TestDao extends  SqlMapClientDaoSupport{
public void save(Node node)
{
this.getSqlMapClientTemplate().insert("p.insertNode", node);
}
    
public Node getNode(String id)
{
return (Node)this.getSqlMapClientTemplate().queryForObject("p.getNode", id);
}

public void updateNode(String id)
{
this.getSqlMapClientTemplate().update("p.updateNode", id);
}

public void deleteNode(String ip)
{
this.getSqlMapClientTemplate().delete("p.deleteNode", ip);
}

@SuppressWarnings("unchecked")
public List getAllNode()
{
return  this.getSqlMapClientTemplate().queryForList("p.getAllNode");

}
}

Answer 3

Web-Root下JSP
index.jsp
<%@ page language="java" pageEncoding="utf-8"%>
<%@ taglib uri="/struts-tags" prefix="s"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   <title>添加数据库</title>
  </head>  
  <body>
    <s:form action="addnode.action" method="post">
    <s:textfield name="id" label="id"/>
    <s:textfield name="ip" label="ip"/>
    <s:textfield name="name" label="name"/>
    <s:submit value="添加到数据库"></s:submit>
    </s:form>
  </body>
</html>ok.jsp
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<html>
  <head>
<title>添加数据库成功</title>
  </head>  
  <body>
    <h2> 
    添加成功!<br> id=<s:property value="id"/>; ip=<s:property value="ip"/>; name=<s:property value="name"/> 
    </h2>
  </body>
</html>

Answer 4

部署运用后错误：
严重: Context initialization failed
org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [org.apache.commons.dbcp.BasicDataSource] for bean with name 'datasource' defined in ServletContext resource [/WEB-INF/spring.xml]: problem with class file or dependent class; nested exception is java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class org.apache.commons.dbcp.BasicDataSource)
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1144)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:524)
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1177)
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:758)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:422)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1079)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1002)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:506)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class org.apache.commons.dbcp.BasicDataSource)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2822)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1159)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1647)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:211)
at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:385)
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1138)
... 33 more
2012-2-22 12:05:06 org.apache.catalina.core.StandardContext listenerStart
严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [org.apache.commons.dbcp.BasicDataSource] for bean with name 'datasource' defined in ServletContext resource [/WEB-INF/spring.xml]: problem with class file or dependent class; nested exception is java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class org.apache.commons.dbcp.BasicDataSource)
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1144)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:524)
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1177)
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:758)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:422)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1079)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1002)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:506)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class org.apache.commons.dbcp.BasicDataSource)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2822)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1159)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1647)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:211)
at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:385)
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1138)
... 33 more

Answer 5

解决了，原来是eclipse与tomcat的JDK版本不一致。

Answer 6

   什么意思？你的意思是说tomcat也有版本？但是我用jetty也有这个错误啊。