首先是定義基礎DAO接口：
package com.tch.test.ssh.dao;
import java.io.Serializable;
import java.util.List;
public interface BaseDao<E, PK extends Serializable> {
/**
* Created on 2013-9-16
* <p>DiscripEion:儲存對象</p>
* @reEurn void
*/
void save(E entity);
/**
* Created on 2013-9-16
* <p>DiscripEion:更新對象</p>
* @reEurn void
*/
void update(E entity);
/**
* Created on 2013-9-16
* <p>DiscripEion:删除對象</p>
* @reEurn void
*/
void delete(E entity);
/**
* CreaEed on 2013-9-16
* <p>DiscripEion:根據id查詢對象</p>
* @reEurn void
*/
E get(Serializable id);
/**
* Created on 2013-9-16
* <p>DiscripEion:查詢全部對象</p>
* @reEurn void
*/
List<E> getAll();
}
以及配置sessionFactory的基礎類：
package com.tch.test.ssh.dao;
import javax.annotation.Resource;
import org.hibernate.SessionFactory;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
public class CommomDao extends HibernateDaoSupport{
@Resource(name="sessionFactory")//這裡由于父類中的setSessionFactory()方法是final的，不能重寫，是以要換個方法名字，在方法裡面調用父類的setSessionFactory()方法
public void setSuperSessionFactory(SessionFactory sessionFactory){
this.setSessionFactory(sessionFactory);
}
}
實體類以及映射檔案：
package com.tch.test.ssh.entity;
// default package
import java.util.Date;
/**
* MyTime entity. @author MyEclipse Persistence Tools
*/
public class MyTime implements java.io.Serializable {
// Fields
private static final long serialVersionUID = 1L;
private Integer id;
private Date addTime;
// Constructors
/** default constructor */
public MyTime() {
}
/** full constructor */
public MyTime(Date addTime) {
this.addTime = addTime;
}
// Property accessors
public Integer getId() {
return this.id;
}
public void setId(Integer id) {
this.id = id;
}
public Date getAddTime() {
return this.addTime;
}
public void setAddTime(Date addTime) {
this.addTime = addTime;
}
}
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--
Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
<class name="com.tch.test.ssh.entity.MyTime" table="t_times" catalog="test">
<id name="id" type="java.lang.Integer">
<column name="id" />
<generator class="native"></generator>
</id>
<property name="addTime" type="java.util.Date">
<column name="addTime" length="8" not-null="true" />
</property>
</class>
</hibernate-mapping>
然後是基礎DAO實作類：
package com.tch.test.ssh.dao;
import java.io.Serializable;
import java.lang.reflect.ParameterizedType;
import java.util.List;
public class BaseDaoImpl<E, PK extends Serializable> extends CommomDao implements BaseDao<E,PK>{
private Class<E> clazz;
@SuppressWarnings("unchecked")
public BaseDaoImpl(){
this.clazz = (Class<E>)((ParameterizedType) getClass().getGenericSuperclass()).getActualTypeArguments()[0];//反射方式擷取子類泛型的實際類型
}
@Override
public void delete(E entity) {
getHibernateTemplate().delete(entity);
}
@SuppressWarnings("unchecked")
@Override
public E get(Serializable id) {
return (E)getHibernateTemplate().get(clazz, id);
}
@SuppressWarnings("unchecked")
@Override
public List<E> getAll() {
return getHibernateTemplate().loadAll(clazz);
/*String hql = "from "+clazz.getName();
System.out.println("hql: "+hql);
return getSession().createQuery(hql).list();*/
}
@Override
public void save(E entity) {
getHibernateTemplate().save(entity);
}
@Override
public void update(E entity) {
getHibernateTemplate().update(entity);
}
}
接下來是接口示範：
package com.tch.test.ssh.dao;
import com.tch.test.ssh.entity.MyTime;
public interface TimeDao extends BaseDao<MyTime, Integer>{
}
實作類示範（隻需要繼承BaseDaoImpl類，就含有了基本的增删改查等方法）：
package com.tch.test.ssh.dao;
import org.springframework.stereotype.Repository;
import com.tch.test.ssh.entity.MyTime;
@Repository("TimeDao")
public class TimerDaoImpl extends BaseDaoImpl<MyTime, Integer> implements TimeDao{
}
最近貼上applicationContext.xml的内容：
<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"
xmlns:tx="http://www.springframework.org/schema/tx"
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-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
<!-- 啟動注入功能 -->
<context:annotation-config />
<!-- 啟動掃描component功能 -->
<context:component-scan base-package="com.tch.test" />
<!-- 啟動注解實物配置功能 -->
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>
<!-- 資料源 -->
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost:3306/test"></property>
<property name="username" value="root"></property>
<property name="password" value="root"></property>
</bean>
<!-- 事務管理器 -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<!--讀取資料庫配置檔案 -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="mappingLocations">
<value>classpath:com/tch/test/ssh/entity/*.hbm.xml</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
</beans> 加上測試類：
package test;
import java.util.List;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.tch.test.ssh.dao.TimeDao;
import com.tch.test.ssh.entity.MyTime;
public class TestSpring {
public static void main(String[] args) throws Exception {
ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
TimeDao dao = (TimeDao) context.getBean("TimeDao");
List<MyTime> entities = dao.getAll();
for(MyTime entity:entities){
System.out.println(entity.getId()+" , "+entity.getAddTime());
}
}
}
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