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sh_Spring整合Hibernate
分别介绍了Sping和Hibernate,以下是将它们整合到一块去了。
一、Hibernate内容
1.创建PO类。
package cn.tgb.domain;
//User实体
public class User {
private Integer id;
private String username;
private String password;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}2.编写User.hbm.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="cn.tgb.domain.User" table="t_user">
<id name="id">
<generator class="native"></generator>
</id>
<property name="username"></property>
<property name="password"></property>
</class>
</hibernate-mapping>3.编写Hibernate.cfg.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <!-- #1核心四项 --> <property name="hibernate.connection.driver_class">com.microsoft.sqlserver.jdbc.SQLServerDriver</property> <property name="hibernate.connection.url">jdbc:sqlserver://localhost:1433; DatabaseName=hibernate02</property> <property name="hibernate.connection.username">sa</property> <property name="hibernate.connection.password">123456</property> <!-- #2设置方言 --> <property name="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</property> <!-- #3 sql --> <!-- * 输出sql--> <property name="hibernate.show_sql">true</property> <!-- * 格式化sql --> <property name="hibernate.format_sql">true</property> <!-- * 是否创建表 --> <property name="hibernate.hbm2ddl.auto">update</property> <!-- #4整合c3p0 --> <property name="hibernate.connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property> <!-- #5 web项目6.0 取消bean校验 --> <property name="javax.persistence.validation.mode">none</property> <!-- #6加入映射文件 --> <mapping resource="cn/tgb/domain/User.hbm.xml"/> </session-factory> </hibernate-configuration>
二、Spring内容
1.Dao实现类：使用HibernateTemplate对PO类进行操作。
package cn.tgb.dao.impl;
import java.util.List;
import org.springframework.orm.hibernate3.HibernateTemplate;
import cn.tgb.dao.UserDao;
import cn.tgb.domain.User;
public class UserDaoImpl implements UserDao{
//使用hibernateTemplate对PO类进行操作
private HibernateTemplate hibernateTemplate;
//提供set方法
public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
this.hibernateTemplate = hibernateTemplate;
}
@Override
public void save(User user) {
this.hibernateTemplate.save(user);
}
@Override
public void update(User user) {
this.hibernateTemplate.update(user);
}
@Override
public void delete(User user) {
this.hibernateTemplate.delete(user);
}
@Override
public User findById(Integer uid) {
return this.hibernateTemplate.get(User.class, uid);
}
@Override
public List<User> findAllUser() {
return this.hibernateTemplate.find("from User");
}
}2.Service实现类：直接使用dao层，通过spring tx管理事务
package cn.tgb.service.impl;
import java.util.List;
import cn.tgb.dao.UserDao;
import cn.tgb.domain.User;
import cn.tgb.service.UserService;
public class UserServiceImpl implements UserService{
//引入UserDao
private UserDao userDao;
//提供set方法
public void setUserDao(UserDao userDao) {
this.userDao = userDao;
}
@Override
public void addUser(User user) {
this.userDao.save(user);
}
@Override
public void updateUser(User user) {
this.userDao.update(user);
}
@Override
public void deleteUser(User user) {
this.userDao.delete(user);
}
@Override
public User findUserById(Integer uid) {
return this.userDao.findById(uid);
}
@Override
public List<User> findAllUser() {
return this.userDao.findAllUser();
}
}
<?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.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"> <!-- #1配置sessionFactory, 通过LocalSessionFactoryBean载入配置获得SessionFactory --> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <!-- #1.1确定配置文件的位置 --> <property name="configLocation" value=http://www.mamicode.com/"classpath:hibernate.cfg.xml">>
从而获得session，再获得事务 --> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <!-- #5.2事务通知(增强)，对指定目标方法进行增强 --> <tx:advice id="txAdvice" transaction-manager="txManager"> <tx:attributes> <tx:method name="add*"/> <tx:method name="update*"/> <tx:method name="delete*"/> <tx:method name="find*" read-only="true"/> </tx:attributes> </tx:advice> <!-- #5.3使用aop生成代理，进行增强 --> <aop:config> <!-- 确定切入点 --> <aop:pointcut expression="execution(* cn.tgb.service..*.*(..))" id="txPointCut"/> <!-- 声明切面 --> <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/> </aop:config> </beans>
至此，Spring和Hibernate就算整合好了。以下编写一个測试类測试下。
package cn.tgb.test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import cn.tgb.domain.User;
import cn.tgb.service.UserService;
public class TestApp {
public static void main(String[] args) {
//1.创建建用户
User user = new User();
user.setUsername("jiangxiao");
user.setPassword("123");
//2.获取Sping配置文件
String xmlPathString="applicationContext.xml";
ApplicationContext applicationContext= new ClassPathXmlApplicationContext(xmlPathString);
//3.通过Ioc获得UserService
UserService userService = (UserService) applicationContext.getBean("userService");
//4.运行加入用户操作
userService.addUser(user);
}
}分析总结：
这张思维导图大概介绍了一下配置文件的配置内容和载入过程，当中蓝色的云朵部分是Spring整合Hibernate的内容。
程序执行时。通过载入配置文件，便将程序中全部的配置信息都载入了。假设有个扩展改动什么的也方便。
日后会继续介绍它们两个与Struts的整合。
sh_Spring整合Hibernate