整合思路是，使DAO继承HibernateTemplate这个类
HibernateTemplate这个类提供了setSessionFactory()方法用于注入SessionFactory
通过spring获取DAO的时候，注入SessionFactory.
步骤1:pojo
步骤2:hbm
步骤3:DAO
步骤4:applicationContext.xml
步骤5:测试查询
步骤6:测试增 删 改
步骤 1 : pojo
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package com.how2java.pojo;
public class Category {
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
private int id;
private String name;
}
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步骤 2 : hbm
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<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.how2java.pojo">
<class name="Category" table="category_">
<id name="id" column="id">
<generator class="native">
</generator>
</id>
<property name="name" />
</class>
</hibernate-mapping>
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步骤 3 : DAO
DAO继承HibernateTemplete，而HibernateTemplete类里有一个setSessionFactory用于接收sessionFactory的注入
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package com.how2java.dao;
import org.springframework.orm.hibernate3.HibernateTemplate;
public class CategoryDAO extends HibernateTemplate{
}
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步骤 4 : applicationContext.xml
创建dao的时候，会注入sessionfactory
创建sessionFactory的时候会注入数据源ds
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<?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-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<bean name="c" class="com.how2java.pojo.Category">
<property name="name" value="yyy" />
</bean>
<bean name="dao" class="com.how2java.dao.CategoryDAO">
<property name="sessionFactory" ref="sf" />
</bean>
<bean name="sf"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="ds" />
<property name="mappingResources">
<list>
<value>com/how2java/pojo/Category.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<value>
hibernate.dialect=org.hibernate.dialect.MySQLDialect
hibernate.show_sql=true
hbm2ddl.auto=update
</value>
</property>
</bean>
<bean name="ds"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/how2java?characterEncoding=UTF-8"/>
<property name="username" value="root" />
<property name="password" value="admin" />
</bean>
</beans>
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步骤 5 : 测试查询
因为CategoryDAO 继承了HibernateTemplate,所以可以直接使用
find来查询所有的Category
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package com.how2java.test;
import java.util.List;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.how2java.dao.CategoryDAO;
import com.how2java.pojo.Category;
public class TestSpring {
public static void main(String[] args) {
ApplicationContext context = new ClassPathXmlApplicationContext(
new String[] { "applicationContext.xml" });
CategoryDAO dao = (CategoryDAO) context.getBean("dao");
List<Category> cs= dao.find("from Category c");
System.out.println(cs);
}
}
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步骤 6 : 测试增 删 改
因为CategoryDAO 继承了HibernateTemplate,所以可以直接使用
1. save 增加
2. get 获取
3. update 修改
4. delete 删除
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package com.how2java.test;
import java.util.List;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.how2java.dao.CategoryDAO;
import com.how2java.pojo.Category;
public class TestSpring {
public static void main(String[] args) {
ApplicationContext context = new ClassPathXmlApplicationContext(
new String[] { "applicationContext.xml" });
CategoryDAO dao = (CategoryDAO) context.getBean("dao");
Category c = new Category();
c.setName("category yyy");
//增加
dao.save(c);
//获取
Category c2 = dao.get(Category.class, 1);
//修改
c2.setName("category zzz");
dao.update(c2);
//删除
dao.delete(c2);
}
}
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