spring和hibernate整合，基于xml的方法

喜欢ヅ旅行 2022-05-22 11:48 133阅读 0赞

直接上代码

1.项目目录

![70][]

2.创建lib文件夹，将hibernate和spring各自需要的jar包和两者整合需要的jar包Cope到此文件夹下，再build  path

3.User.java

package com.ssh.pojo;
    
    public class User {
    	private Integer uid;
    	private String username;
    	private String password;
    	public Integer getUid() {
    		return uid;
    	}
    	public void setUid(Integer uid) {
    		this.uid = uid;
    	}
    	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;
    	}
    	public User() {
    		
    	}
    	public User(Integer uid, String username, String password) {
    		super();
    		this.uid = uid;
    		this.username = username;
    		this.password = password;
    	}
    	
    }

User的映射文件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 package="com.ssh.pojo">
        	<class name="User" table="user">
        		<id name="uid" type="java.lang.Integer">
        			<column name="id" ></column>
        			<generator class="native"></generator>
        		</id>
        		<property name="username" type="java.lang.String"></property>
        		<property name="password" type="string" ></property>
        	</class>
        </hibernate-mapping>

接口类UserDao.java

package com.ssh.dao;
    
    public interface UserDao {
    	public void test();
    }

实现类UserDaoImpl.java

package com.ssh.dao.impl;
    
    import org.springframework.orm.hibernate3.HibernateTemplate;
    
    import com.ssh.dao.UserDao;
    
    public class UserDaoImpl extends HibernateTemplate implements UserDao{
    
    	@Override
    	public void test() {
    		System.out.println("UserDaoImpl是接口UserDao接口的实现类，而且继承了HibernateTemplate可以直接和数据库直接交互");
    		
    	}
    
    }

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>
        	  
            
    
            
            
            <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
            
            <property name="hibernate.show_sql">true</property>
            
            <property name="hibernate.format_sql">true</property>
            
            <property name="hibernate.hbm2ddl.auto">update</property>
    
            
            
    
        </session-factory>
    </hibernate-configuration>

applicationContext.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: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="user" class="com.ssh.pojo.User">
        </bean>
        
        
        <bean name="userDaoImpl" class="com.ssh.dao.impl.UserDaoImpl">
            <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/ssh/pojo/User.hbm.xml</value>
    			</list>
    		</property>
    		
    		<property name="schemaUpdate"> 
                <value>true</value> 
            </property>
            
    		<property name="hibernateProperties" value="classpath:hibernate.cfg.xml"></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/test?characterEncoding=GBK" />
    		<property name="username" value="root" />
    		<property name="password" value="admin" />
    	</bean>	
    
    </beans>

测试类TestSpring.java

package com.ssh.test;
    
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.ConfigurableApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    import com.ssh.dao.impl.UserDaoImpl;
    import com.ssh.pojo.User;
    
    public class TestSpring {
    	 public static void main(String args[]) {
    	        ApplicationContext bf=new ClassPathXmlApplicationContext("applicationContext.xml");  
    			UserDaoImpl userDaoImpl=(UserDaoImpl)bf.getBean("userDaoImpl");
    	        User u=new User();
    	        u.setUsername("mm");
    	        u.setPassword("123456");
    	        
    	        //增加
    	        userDaoImpl.save(u);
    	        userDaoImpl.test();
    	        //获取
    	        /*User u2=userDaoImpl.get(User.class, 1);
    	        System.out.println(u2.getUsername()+","+u2.getPassword());*/
    	        
    	        //修改
    	        /*u2.setUsername("Mary");
    	        userDaoImpl.update(u2);*/
    	        
    	        
    	        //删除
    	        /*userDaoImpl.delete(u2);*/
    
    	    }
    }

测试结果

![70 1][]

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.

[70]: /images/20220522/b08c0b6b3c364f878b041bbeefe82d84.png
[70 1]: /images/20220522/83553d53df0048949bcd1b1d726fb1d7.png