严重: Exception sending context initialized event to listener instance of class or

mixiao25184 2012-08-13 08:31:06
启动 tomcat6.0 就报这个错。甚是纠结，删除了asm-2.2.3.jar 文件，导入了 commons-pool-1.3.jar

Struts1 Spring2.5 hibernate3.2

现附上 错误信息 web.xml ,applicationContext.xml。

错误信息：


严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userService' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Initialization of bean failed; nested exception is org.springframework.beans.TypeMismatchException: Failed to convert property value of type [com.ssh.dao.impl.UserDAO] to required type [com.ssh.dao.IuserDAO] for property 'userDAO'; nested exception is java.lang.IllegalArgumentException: Cannot convert value of type [com.ssh.dao.impl.UserDAO] to required type [com.ssh.dao.IuserDAO] for property 'userDAO': no matching editors or conversion strategy found

	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:478)

	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)

	at java.security.AccessController.doPrivileged(Native Method)

	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)

	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)

	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:220)

	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)

	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)

	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)

	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)

	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:729)

	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:381)

	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:3827)

	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4334)

	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)

	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)

	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)

	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)

	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)

	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)

	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)

	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)

	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)

	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)

	at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)

	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)

	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)

	at org.apache.catalina.core.StandardService.start(StandardService.java:516)

	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)

	at org.apache.catalina.startup.Catalina.start(Catalina.java:566)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

	at java.lang.reflect.Method.invoke(Method.java:597)

	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)

	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)

Caused by: org.springframework.beans.TypeMismatchException: Failed to convert property value of type [com.ssh.dao.impl.UserDAO] to required type [com.ssh.dao.IuserDAO] for property 'userDAO'; nested exception is java.lang.IllegalArgumentException: Cannot convert value of type [com.ssh.dao.impl.UserDAO] to required type [com.ssh.dao.IuserDAO] for property 'userDAO': no matching editors or conversion strategy found

	at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:391)

	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1287)

	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1248)

	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1008)

	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:470)

	... 38 more

Caused by: java.lang.IllegalArgumentException: Cannot convert value of type [com.ssh.dao.impl.UserDAO] to required type [com.ssh.dao.IuserDAO] for property 'userDAO': no matching editors or conversion strategy found

	at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:219)

	at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:138)

	at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:386)

	... 42 more


web.xml


		<context-param>

		 <param-name>contextConfigLocation</param-name>

		 <param-value>/WEB-INF/applicationContext.xml</param-value>

		  </context-param>



	  <listener>

	    <listener-class>

	          org.springframework.web.context.ContextLoaderListener

	    </listener-class>

	  </listener>


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"

	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">

		</property>

		<property name="url" value="jdbc:mysql://localhost:3306/ssh"></property>

		<property name="username" value="root"></property>

		<property name="password" value="123456"></property>

	</bean>

	<bean id="sessionFactory"

		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

		<property name="dataSource">

			<ref bean="datasource" />

		</property>

		<property name="hibernateProperties">

			<props>

				<prop key="hibernate.dialect">

					org.hibernate.dialect.MySQLDialect

				</prop>

			</props>

		</property>

		<property name="mappingResources">

			<list>

				<value>com/ssh/user/User.hbm.xml</value></list>

		</property></bean>

	

	<bean name="userService" class="com.ssh.service.impl.UserService" >

		<property name="userDAO">

			<ref bean="UserDAO"/>

		</property>

	</bean>

	<bean id="UserDAO" class="com.ssh.dao.impl.UserDAO">

		<property name="sessionFactory">

			<ref bean="sessionFactory" />

		</property>

	</bean>

	

	

	

	</beans>
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mixiao25184 2012-08-14
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package com.ssh.dao.impl;

import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.ssh.dao.IuserDAO;
import com.ssh.user.User;

public class UserDAO extends HibernateDaoSupport implements IuserDAO{
private static final Log log = LogFactory.getLog(UserDAO.class);
// property constants
public static final String USERNAME = "username";
public static final String PASSWORD = "password";
private IuserDAO userDAO;
protected void initDao() {
// do nothing
}


public void save(User user) {
log.debug("saving User instance");
try {
getHibernateTemplate().save(user);
log.debug("save successful");
} catch (RuntimeException re) {
log.error("save failed", re);
throw re;
}
}

public void delete(User persistentInstance) {
log.debug("deleting User instance");
try {
getHibernateTemplate().delete(persistentInstance);
log.debug("delete successful");
} catch (RuntimeException re) {
log.error("delete failed", re);
throw re;
}
}

public User findById(java.lang.Integer id) {
log.debug("getting User instance with id: " + id);
try {
User instance = (User) getHibernateTemplate().get(
"com.ssh.user.User", id);
return instance;
} catch (RuntimeException re) {
log.error("get failed", re);
throw re;
}
}

public List findByExample(User instance) {
log.debug("finding User instance by example");
try {
List results = getHibernateTemplate().findByExample(instance);
log.debug("find by example successful, result size: "
+ results.size());
return results;
} catch (RuntimeException re) {
log.error("find by example failed", re);
throw re;
}
}

public List findByProperty(String propertyName, Object value) {
log.debug("finding User instance with property: " + propertyName
+ ", value: " + value);
try {
String queryString = "from User as model where model."
+ propertyName + "= ?";
return getHibernateTemplate().find(queryString, value);
} catch (RuntimeException re) {
log.error("find by property name failed", re);
throw re;
}
}

public List findByUsername(Object username) {
return findByProperty(USERNAME, username);
}

public List findByPassword(Object password) {
return findByProperty(PASSWORD, password);
}

public List findAll() {
log.debug("finding all User instances");
try {
String queryString = "from User";
return getHibernateTemplate().find(queryString);
} catch (RuntimeException re) {
log.error("find all failed", re);
throw re;
}
}

public User merge(User detachedInstance) {
log.debug("merging User instance");
try {
User result = (User) getHibernateTemplate().merge(detachedInstance);
log.debug("merge successful");
return result;
} catch (RuntimeException re) {
log.error("merge failed", re);
throw re;
}
}

public void attachDirty(User instance) {
log.debug("attaching dirty User instance");
try {
getHibernateTemplate().saveOrUpdate(instance);
log.debug("attach successful");
} catch (RuntimeException re) {
log.error("attach failed", re);
throw re;
}
}

public void attachClean(User instance) {
log.debug("attaching clean User instance");
try {
getHibernateTemplate().lock(instance, LockMode.NONE);
log.debug("attach successful");
} catch (RuntimeException re) {
log.error("attach failed", re);
throw re;
}
}

public static UserDAO getFromApplicationContext(ApplicationContext ctx) {
return (UserDAO) ctx.getBean("UserDAO");
}
}
mixiao25184 2012-08-14
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刚才发现 userdao 没有实现 iuserdao接口。但是我现在实现了 好像还是包一样的错。

package com.ssh.dao;


import java.util.List;

import com.ssh.user.User;

public interface IuserDAO {
public User findById(Integer id);
public List findByUsername(Object username);
public void save(User user);
}
mixiao25184 2012-08-14
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他大爷的，在晚上找了一段代码，简直就是。。。坑爹。最后发现：
<bean name="userService" class="com.ssh.service.impl.UserService" >
<property name="userDAO">
<ref bean="UserDAO"/>
</property>
</bean>



bean 不应该是name，而是 Id=“userService”
宏Lee 2012-08-13
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uerdao和iuserdao都贴出来
宏Lee 2012-08-13
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把你实体类贴出来
mixiao25184 2012-08-13
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问题和 http://topic.csdn.net/u/20110816/23/5ad3ab3e-98f6-43da-8ac1-e1e29dc4ca41.html?seed=424402433&r=79395505#r_79395505 报错一样。估计都是从网上找的一短代码。为啥报错呢？
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