Spring与MyBatis的整合

MyBatis的mybatis-config.xml主配置文件存在配置繁琐的问题：

可能配置不同的别名存在繁琐

指定mapper文件存在繁琐：

存在代码冗余：

Spring通过SqlSessionFactoryBean类整合sqlSessionFactory

通过注入方式获取主配置文件需要写的内容：1,2,3

Spring通过MapperScannerConfigure类来整合dao对象

pom.xml：

    4.0.0

    com.itheima
    spring08
    1.0-SNAPSHOT
    
        
            
                org.apache.maven.plugins
                maven-compiler-plugin
                
                    6
                    6
                
            
        
    

    
        
            junit
            junit
            4.11
            test
        
     
        
            org.springframework
            spring-context
            5.1.14.RELEASE
        

        

        
            org.slf4j
            slf4j-log4j12
            1.7.25
        

        
            log4j
            log4j
            1.2.17
        


        
            org.springframework
            spring-jdbc
            5.1.14.RELEASE
        
        
        
            org.mybatis
            mybatis-spring
            2.0.2
        
        
        
            com.alibaba
            druid
            1.1.18
        





        
            mysql
            mysql-connector-java
            5.1.48
        

        
            org.mybatis
            mybatis
            3.4.6
        



        
            org.springframework
            spring-aop
            5.1.14.RELEASE
        

        
            org.aspectj
            aspectjrt
            1.8.8
        

        
            org.aspectj
            aspectjweaver
            1.8.3
        
    

 UserDAO接口：

package com.baizhidu.dao;

import com.baizhidu.entity.User;

public interface UserDAO {
    public void save(User user);
}

User类:

package com.baizhidu.entity;

import java.io.Serializable;

public class User implements Serializable {
    private Integer id;
    private String name;
    private String password;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }
}

conn.baizhidu.mapper文件夹下：

UserDAOMapper.xml：

    

    
        insert into tb_users(name,password) values (#{name},#{password})
    

applicationContext.xml：

    
        
        
        
        
    


    
        
        
        
        
        
        
            
            
                classpath:com.baizhidu.mapper/*Mapper.xml
            
        
    


    
    
        
        
    

TestSpringMyBatis测试类：

package com;

import com.baizhidu.dao.UserDAO;
import com.baizhidu.entity.User;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class TestSpringMyBatis {
    @Test
    public void test1(){
        ApplicationContext ctx=new ClassPathXmlApplicationContext("/applicationContext.xml");
        UserDAO userDAO=(UserDAO) ctx.getBean("userDAO");//UserDAO开头字母小写

        User user=new User();
        user.setName("xiaojr");
        user.setPassword("999999");

        userDAO.save(user);
    }
}