Hibernate3與spring的整合應(yīng)用
作者：TOM 來源：技術(shù)學(xué)習(xí)者 更新日期：2005-09-15 瀏覽次數(shù)： 251
Spring為應(yīng)用程序提供一個(gè)容器, 為應(yīng)用程序的管理帶來了方便. 它與hibernate的結(jié)合, 形成一個(gè)完整的后臺(tái)體系, 也是當(dāng)今應(yīng)用開發(fā)流行的做法. 奮斗了一個(gè)晚上, 終于把hibernate3與spring整合了起來, hibernate2.x和hibernate3與spring的結(jié)合稍有不同, 關(guān)鍵是引入的spring的包的不同, 下面我會(huì)標(biāo)識(shí)出來.
Spring 的配置文件applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "spring" "../../../lib/spring-beans.dtd" >
<beans default-autowire="no" default-dependency-check="none" default-lazy-init="false">
<!--
配置數(shù)據(jù)源
注意: 用org.apache.commons.dbcp.BasicDataSource, 要引入 apache commons
的commons-collections-3.1.jar, commons-dbcp-1.2.1.jar, commons-pool-1.2.jar三個(gè)包
-->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName">
<value>org.gjt.mm.mysql.Driver</value>
</property>
<property name="url">
<value>jdbc:mysql://localhost/sparkcrm</value>
</property>
<property name="username">
<value>root</value>
</property>
<property name="password">
<value>1111</value>
</property>
</bean>
<!-- 配置sessionFactory, 注意這里引入的包的不同 -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource">
<ref local="dataSource" />
</property>
<property name="mappingResources">
<list>
<value>com/sparkcrm/schema/entities/Lead.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>
<!-- 配置transactionManager, 注意這里引入的包的不同 -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory">
<ref local="sessionFactory" />
</property>
</bean>
<--事務(wù)代理在這里配置, 這里省略了 -->
<bean id="leadDAO" class="com.sparkcrm.schema.dao.LeadDao">
<property name="sessionFactory">
<ref local="sessionFactory" />
</property>
</bean>
</beans>
一個(gè)示例的hibernate的映射文件
<?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">
<hibernate-mapping package="com.sparkcrm.schema.entities">
<!-- 我在這里用了hibernate的動(dòng)態(tài)模型(dynamic models) , 沒用pojo-->
<class entity-name="Lead" table="Lead">
<id name="id" column="id" type="string">
<generator class="uuid.hex"/>
</id>
<property name="companyName" type="string"/>
<property name="topic" type="string"/>
<property name="contactName" type="string"/>
</class>
</hibernate-mapping>
DAO代碼:
import java.util.Map;
/**
* DAO接口
*/
public interface IDAO
{
String create(Map<String, Object> map);
void update(Map<String, Object> map);
Map<String, Object> delete(String id);
boolean share(String id, String userId, int rights);
boolean assign(String id, String userId);
}
import java.util.Map;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import com.sparkcrm.schema.IDAO;
import com.sparkcrm.schema.Schema;
import com.sparkcrm.schema.metadata.Lead;
/**
*一個(gè)示例的DAO實(shí)現(xiàn), 繼承HibernateDaoSupport, 用spring帶來的管理session等的便利
*/
public class LeadDao extends HibernateDaoSupport implements IDAO
{
public String create(Map<String, Object> map)
{
getHibernateTemplate().saveOrUpdate(Schema.LEAD, map);
return (String) map.get(Lead.ID);
}
public void update(Map<String, Object> map)
{
}
public Map<String, Object> delete(String id)
{
return null;
}
public boolean share(String id, String userId, int rights)
{
return false;
}
public boolean assign(String id, String userId)
{
return false;
}
}
示意性的測(cè)試代碼:
import java.sql.Timestamp;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import junit.framework.TestCase;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.sparkcrm.schema.IDAO;
public class testLeadDAO extends TestCase
{
ClassPathXmlApplicationContext ctx = null;
public void setUp()
{
ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
}
public void testCreateLead()
{
IDAO leadDao = (IDAO) ctx.getBean("leadDAO");
Map<String, Object> map = new HashMap<String, Object>();
map.put("companyName", "Spark Ltd.");
map.put("topic", "This is a Good Lead!");
map.put("contactName", "abcd");
String id = leadDao.create(map);
System.out.println(id);
}
}
