配置baseDao（hibernateTemplate）

当用 （struts2+hibernate+spring）开发的时候，想写个baseDao,同时继承该类的Dao类能使用hibernateTemplate，

1）在baseDao中注入hibernateTemplate属性。

手动注入hibernateTemplate属性。

baseDao.java代码如下：

import org.hibernate.SessionFactory;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.stereotype.Repository;

// class created by wwei 2011-11-28 下午10:12:01 

@Repository("baseHibernateDao")
public abstract class BaseHibernateDaoImpl<T> implements BaseHibernateDao<T>{

    private HibernateTemplate hibernateTemplate;
    
    public HibernateTemplate getHibernateTemplate() {
        return hibernateTemplate;
    }
    @Resource(name = "hibernateTemplate")
    public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
        this.hibernateTemplate = hibernateTemplate;
    }

    @SuppressWarnings("unchecked")
    public List<T> findUser(String hql) throws Exception{
        try{
            return (List<T>)this.getHibernateTemplate().find(hql);
        }catch(Exception e){
            logger.info(e);
            throw new Exception();
        }
    }
}

2) 继承HibernateDaoSupport类。

同时，还需要注入sessionFactory或者hibernateTemplate。

此处自定义增加了setSessionFactoryOverride方法。增加了findUser方法，实现自BaseHibernateDao接口。

import java.io.Serializable;
import java.util.List;

import javax.annotation.Resource;

import org.hibernate.SessionFactory;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.stereotype.Repository;

// class created by wwei 2011-11-28 下午10:12:01 

@Repository("baseHibernateDao")
public abstract class BaseHibernateDaoImpl<T> extends HibernateDaoSupport implements BaseHibernateDao<T>{

    @Resource(name = "sessionFactory")
    public void setSessionFactoryOverride(SessionFactory sessionFactory) {
        super.setSessionFactory(sessionFactory);
    }

    @SuppressWarnings("unchecked")
    public List<T> findUser(String hql) throws Exception{
        try{
            return (List<T>)this.getHibernateTemplate().find(hql);
        }catch(Exception e){
            logger.info(e);
            throw new Exception();
        }
    }
    
    
}

 spring.xml代码如下：

<?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:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx" 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/tx
http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
http://www.springframework.org/schema/aop 
http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
  http://www.springframework.org/schema/context   
   http://www.springframework.org/schema/context/spring-context-2.5.xsd
">
    <context:annotation-config /><!-- 使用annotation @resource(name="")-->
    <context:component-scan base-package="com.wykd"/><!-- 自动去检测类的注解 -->
     
    <bean
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <value>classpath:jdbc.properties</value><!-- properties文件 -->
        </property>
    </bean>
    
    <bean id="dataSource" destroy-method="close"
        class="org.apache.commons.dbcp.BasicDataSource">
        <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.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        
        <property name="packagesToScan">
            <list>
                <value>com.wykd.bean</value><!-- 自动检测bean类 -->
            </list>
        </property>
        
        <property name="hibernateProperties"> <!-- 其他hibernate.cfg.xml属性值设置 -->
            <props>
                <prop key="hibernate.dialect">
                    org.hibernate.dialect.MySQLDialect
                </prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.format_sql">true</prop>
            </props>
        </property>
        
    </bean>
 
    <bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate" >
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
</beans>