1. 新建java project
2. 引入jar
3. src下新建package:com.web.model, com.web.dao, com.web.service, bean.xml
4. model下新建User.java
package com.web.model; import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id; @Entity
public class User {
@Id
@GeneratedValue
private int id; @Column(length=32)
private String name;
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;
}
}
dao下新建interface IUserDao.java
package com.web.dao; import com.web.model.User; public interface IUserDao {
public void save(User user);
}
dao下新建接口的实现类 UserDao.java
注意:
1. @Repository
2. @Resource 植入sessionfactory
package com.web.dao; import javax.annotation.Resource; import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.stereotype.Repository;
import org.springframework.web.bind.annotation.SessionAttributes; import com.web.model.User; @Repository
public class UserDao implements IUserDao { @Resource
private SessionFactory sessionFactory;
public SessionFactory getSessionFactory() {
return sessionFactory;
}
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
public void save(User user) {
Session session = sessionFactory.getCurrentSession();
session.save(user);
} }
service下新建接口IUserService.java
package com.web.service;
import com.web.model.User;
public interface IUserService {
public void save(User user);
}
service下新建接口实现类UserService.java
package com.web.service; import javax.annotation.Resource; import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional; import com.web.dao.UserDao;
import com.web.model.User; @Service
@Transactional
public class UserService implements IUserService {
@Resource
private UserDao userDao; public void save(User user) {
userDao.save(user);
int i=1/0;
userDao.save(user);
} }
beans.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"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
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/aop
http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
<context:annotation-config />
<context:component-scan base-package="com.web" /> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/spring" />
<property name="username" value="root" />
<property name="password" value="root1234" />
</bean> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="annotatedClasses">
<list>
<value>com.web.model.User</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean> <bean id="txManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean> <tx:annotation-driven transaction-manager="txManager"/>
<!-- <aop:aspectj-autoproxy proxy-target-class="true"/> -->
</beans>
5. 新建source folder:test ,新建package:com.web.service,用于测试service
package com.web.service; import static org.junit.Assert.*; import javax.annotation.Resource; import org.hibernate.SessionFactory;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext; import com.web.model.User; public class UserServiceTest {
@Resource
private SessionFactory sessionFactory; private ApplicationContext ac = new ClassPathXmlApplicationContext("beans.xml"); @Test
public void testSessionFactory() {
sessionFactory=(SessionFactory)ac.getBean("sessionFactory");
System.out.println(sessionFactory);
} @Test
public void testUserService(){
IUserService iuserService=(IUserService)ac.getBean("userService");
System.out.println(iuserService);
iuserService.save(new User());
}
}