Spring整合Hibernate注入报
空指针<?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:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<context:annotation-config/>
<context:component-scan base-package="com.jzh"/>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${jdbc.driverClassName}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="mappingResources">
<list>
<value>com/jzh/model/User.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
</beans>
**********************************************
package com.jzh.service;
import javax.annotation.Resource;
import org.springframework.stereotype.Component;
import com.jzh.dao.UserDAO;
import com.jzh.model.User;
@Component("userManager")
public class UserManager {
private UserDAO userDAO;
public UserDAO getUserDAO() {//此处得不到userDAO
return userDAO;
}
@Resource(name="userDAO")
public void setUserDAO(UserDAO userDAO) {//但set可以得到
this.userDAO = userDAO;
}
public void saves(User user)
{
userDAO.save(user);//此处空指针
}
}
******************************************************************
package com.jzh.dao;
import javax.annotation.Resource;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.springframework.stereotype.Component;
import com.jzh.model.User;