SSH 整合

Caused by: java.lang.IllegalStateException: Cannot convert value of type [$Proxy4 implementing com.yang.ssh.dao.UserDao,org.springframework.beans.factory.InitializingBean,org.springframework.aop.SpringProxy,org.springframework.aop.framework.Advised] to required type [com.yang.ssh.dao.UserDaoImpl] for property 'userDao': no matching editors or conversion strategy found

今天整合S2SH出现了以上的错误，折腾了好久没有解决，望路过的大侠，帮我看看。

我的applicationContext.xml的主要内容为：


<!-- 集成hibernate的配置文件 -->

<bean name="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

<property name="dataSource" ref="dataSource" />

<!-- 加载配置***.hbm.xml的路径 -->

<property name="mappingResources">

<list>

<value>com/yang/ssh/bean/User.hbm.xml</value>

</list>

</property>

<property name="hibernateProperties">

<value>

hibernate.dialect=org.hibernate.dialect.MySQLInnoDBDialect

hibernate.show_sql=true

hibernate.hbm2ddl.auto=create-drop

</value>

</property>

</bean>

<!-- 配置事务管理器 -->

<bean name="transactionManager"

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

<property name="sessionFactory" ref="sessionFactory" />

</bean>

<tx:advice id="txAdvice" transaction-manager="transactionManager">

<tx:attributes>

<tx:method name="*" propagation="REQUIRED" />

</tx:attributes>

</tx:advice>

<aop:config>

<!-- 因为逻辑太简单了，所以就把事务配置在了Dao层。实际使用中是不会在dao层配置事务的。 -->

<aop:advisor advice-ref="txAdvice" pointcut="execution(* com.yang.ssh.dao.UserDaoImpl.*(..))"/>

</aop:config>

<!-- 这里使用了set方法进行注入

配置Dao的实现类

-->

<bean name="userDao" class="com.yang.ssh.dao.UserDaoImpl">

<property name="sessionFactory" ref="sessionFactory"/>

</bean>

<!-- 配置Action -->

<bean name="userAction" class="com.yang.ssh.action.UserAction">

    <property name="userDao" ref="userDao"/>

</bean>

web.xml内容为

<!-- 配置struts2的过滤器 -->

<filter>

<filter-name>struts2</filter-name>

<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>

</filter>

<filter-mapping>

<filter-name>struts2</filter-name>

<url-pattern>/*</url-pattern>

<!-- 处理forward request请求 -->

<dispatcher>FORWARD</dispatcher>

<dispatcher>REQUEST</dispatcher>

</filter-mapping>

<!-- 配置Spring中的监听器 -->

<listener>

<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

</listener>

<!--配置默认路径 -->

<welcome-file-list>

<welcome-file>index.jsp</welcome-file>

</welcome-file-list>

struts.xml内容为：

<struts>

<!--利用Spring对Action托管  -->

<constant name="struts.objectFactory" value="spring"/>

<!-- 配置struts2.0

其中package中name属性是package的唯一标示，

    -->

<package name="default" namespace="/" extends="struts-default">

<!-- 配置action -->

<action name="user" class="userAction">

<!-- 配置转移路径 -->

<result name="success">WEB-INF/page/user.jsp</result>

<result name="error">WEB-INF/page/error.jsp</result>

</action>

</package>

</struts>

UserAction.java

package com.yang.ssh.action;

import com.opensymphony.xwork2.ActionSupport;

import com.yang.ssh.bean.User;

import com.yang.ssh.dao.UserDao;

import com.yang.ssh.dao.UserDaoImpl;

public class UserAction extends ActionSupport {

/**

*

*/

private static final long serialVersionUID = 1L;

private UserDao userDao;

private User user;

public User getUser() {

return user;

}

public void setUser(User user) {

this.user = user;

}

public void setUserDao(UserDaoImpl userDao) {

this.userDao= userDao;

}

public String execute() {

try {

user = new User();

user.setAddress("深圳");

user.setAge(24);

user.setSex("男");

user.setUserName("michaelyang");

userDao.addUser(user);

return "success";

} catch (Exception e) {

System.out.println(e.getMessage());

return "error";

}

}

}

UserDaoImpl.java为：
package com.yang.ssh.dao;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import com.yang.ssh.bean.User;
public class UserDaoImpl extends HibernateDaoSupport implements UserDao{
public void addUser(User user) {
this.getHibernateTemplate().save(user);
}
}
問題解決方案：

我在UserAction.java 中導入的時候為


public void setUserDao(UserDaoImpl userDao) {

this.userDao= userDao;

}


把它改為UserDao 就OK了

心得：對于通過接口注入理解不清楚！


本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/ybinwei/archive/2010/08/07/5794840.aspx