spring入门之spring与hibernate整合完成增删改查的操作（封装HibernateTemplate模版类对象）
今天是spring的最后一节课，这节课老师讲了spring与hibernate整合完成增删改查的操作，这是很重要的一节课，这也是第一次真正的实现spring结合Hibernate和数据库连接上，下面是这次课的过程实现：
首先是数据库建表：采用Oracle数据库，在Scott用户里新建USERS表，
所用jar包:
实现源码如下：
Users.java
Users.hbm.xml
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="www.csdn.spring.hibernate.domain">
<class name="Users" table="USERS" schema="SCOTT">
<id name="id" column="ID">
<generator class="sequence">
<param name="sequence">USERS_SEQ</param>
</generator>
</id>
<property name="name" type="string" column="NAME" />
<property name="regTime" type="timestamp" column="REGTIME" />
</class>
</hibernate-mapping>
UsersDao.java
package www.csdn.spring.hibernate.dao;
import java.util.List;
import www.csdn.spring.hibernate.domain.Users;
public interface UsersDao{
public void save(Users entity);
public void deleteById(Class clazz,Integer id);
public List<Users> getObjects(Class clazz);
public void update(Users entity);
}
UsersDaoImpl.java
package www.csdn.spring.hibernate.dao;
import java.util.List;
import org.springframework.orm.hibernate3.HibernateTemplate;
import www.csdn.spring.hibernate.domain.Users;
public class UsersDaoImpl implements UsersDao{
// 封装模版类对象
private HibernateTemplate hibernateTemplate;
// 注入
public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
this.hibernateTemplate = hibernateTemplate;
}
@Override
public void save(Users entity) {
hibernateTemplate.save(entity);
}
@Override
public List<Users> getObjects(Class clazz) {
return hibernateTemplate.find("from "+clazz.getName());
}
@Override
public void deleteById(Class clazz,Integer id) {
//hibernateTemplate.delete(hibernateTemplate.get(clazz.getName(), id));
hibernateTemplate.bulkUpdate("delete from "+clazz.getName()+" where id="+id);
}
@Override
public void update(Users entity) {
hibernateTemplate.update(entity);
}
}
package www.csdn.spring.hibernate.dao;
import java.util.List;
import org.springframework.orm.hibernate3.HibernateTemplate;
import www.csdn.spring.hibernate.domain.Users;
public class UsersDaoImpl implements UsersDao{
// 封装模版类对象
private HibernateTemplate hibernateTemplate;
// 注入
public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
this.hibernateTemplate = hibernateTemplate;
}
@Override
public void save(Users entity) {
hibernateTemplate.save(entity);
}
@Override
public List<Users> getObjects(Class clazz) {
return hibernateTemplate.find("from "+clazz.getName());
}
@Override
public void deleteById(Class clazz,Integer id) {
//hibernateTemplate.delete(hibernateTemplate.get(clazz.getName(), id));
hibernateTemplate.bulkUpdate("delete from "+clazz.getName()+" where id="+id);
}
@Override
public void update(Users entity) {
hibernateTemplate.update(entity);
}
}
UserTest.java
package www.csdn.spring.hibernate.dao;
import java.util.Date;
import java.util.List;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import www.csdn.spring.hibernate.domain.Users;
public class UserTest {
//保存
@Test
public void save(){
ApplicationContext ac=new ClassPathXmlApplicationContext("app*.xml");
UsersDao usersdao=ac.getBean("usersDaoImpl",UsersDao.class);
usersdao.save(new Users(null,"chrp999999999",new Date()));
System.out.println(usersdao.getClass());
}
//获取所有
@Test
public void getObjects(){
ApplicationContext ac=new ClassPathXmlApplicationContext("app*.xml");
UsersDao usersdao=ac.getBean("usersDaoImpl",UsersDao.class);
List<Users> user=usersdao.getObjects(Users.class);
for(Users u:user){
System.out.println(u.toString());
}
}
//根据id删除
@Test
public void delete(){
ApplicationContext ac=new ClassPathXmlApplicationContext("app*.xml");
UsersDao usersdao=ac.getBean("usersDaoImpl",UsersDao.class);
usersdao.deleteById(Users.class,5);
System.out.println(usersdao.getClass());
}
//更新
@Test
public void update(){
ApplicationContext ac=new ClassPathXmlApplicationContext("app*.xml");
UsersDao usersdao=ac.getBean("usersDaoImpl",UsersDao.class);
usersdao.update(new Users(2,"deep",new Date()));
System.out.println(usersdao.getClass());
}
}
jdbc.properties
jdbc.driverClassName=oracle.jdbc.driver.OracleDriver jdbc.username=scott jdbc.password=tiger jdbc.url=jdbc\:oracle\:thin\:@127.0.0.1\:1521\:orcl
applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 导入spring-dao的文件 -->
<import resource="spring.xml"/>
<import resource="spring-dao.xml" />
<!-- 分散配置解析 -->
<context:property-placeholder location="jdbc.properties" />
</beans>
spring.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 数据库连接的数据源 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<!-- 数据库连接驱动 -->
<property name="driverClassName" value="${jdbc.driverClassName}" />
<!-- 连接的用户名 -->
<property name="username" value="${jdbc.username}" />
<!-- 连接的用户密码 -->
<property name="password" value="${jdbc.password}" />
<!-- 连接的url地址 -->
<property name="url" value="${jdbc.url}" />
<!--数据库的连接的最小值 -->
<!--数据库的连接的最大值 -->
</bean>
<!-- 怎么与hibernate整合的 -->
<!-- sessionFactory工厂 -->
<bean id="localSessionFactoryBean"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<!-- 数据库连接的数据源 -->
<property name="dataSource" ref="dataSource" />
<!-- hibernate的映射文件配置 -->
<property name="mappingResources">
<array>
<value>www/csdn/spring/hibernate/domain/Users.hbm.xml</value>
</array>
</property>
<!-- hibernate的属性配置 -->
<property name="hibernateProperties">
<props>
<prop key="show_sql">true</prop>
<prop key="hibernate.query.factory_class">org.hibernate.hql.ast.ASTQueryTranslatorFactory
</prop>
</props>
</property>
</bean>
<!-- hibernate封装的模版类 -->
<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
<property name="sessionFactory" ref="localSessionFactoryBean"/>
</bean>
<!-- 事务管理器 -->
<bean id="hibernateTransactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="localSessionFactoryBean"/>
</bean>
<!-- 事务的通知-->
<tx:advice id="txAdvice" transaction-manager="hibernateTransactionManager">
<!-- 事务的属性 -->
<tx:attributes>
<!-- 事务的具体执行方法 -->
<tx:method name="save*" propagation="REQUIRED" isolation="DEFAULT"/>
<tx:method name="delete*" propagation="REQUIRED" isolation="DEFAULT"/>
<tx:method name="update*" propagation="REQUIRED" isolation="DEFAULT"/>
<tx:method name="get*" propagation="REQUIRED" isolation="DEFAULT" read-only="true"/>
</tx:attributes>
</tx:advice>
<!-- 切面 -->
<!-- <aop:config>
<aop:pointcut expression="execution(*..Service*.*(..))" id="mycut" />
<aop:advisor advice-ref="txAdvice" pointcut-ref="mycut" />
</aop:config>
-->
</beans>
spring-dao.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.xsd">
<bean id="usersDaoImpl" class="www.csdn.spring.hibernate.dao.UsersDaoImpl">
<property name="hibernateTemplate" ref="hibernateTemplate">
</property>
</bean>
</beans>
<?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.xsd">
<bean id="usersDaoImpl" class="www.csdn.spring.hibernate.dao.UsersDaoImpl">
<property name="hibernateTemplate" ref="hibernateTemplate">
</property>
</bean>
</beans>
到此为止简单的spring+Hibernate完成增删改查就实现了，运行测试类UserTest.java后结果如下
