配合哔哩哔哩视频学习【SSM 框架】SpringMVC+Spring+Mybatis SSM 整合+实战+源码1-6集

1.单独使用Mybatis

1.1.导入必须包

在这里插入图片描述
还要引入日志文件

1.2.建立数据库和表

CREATE TABLE t_customer (
id INT PRIMARY KEY AUTO_INCREMENT,
NAME VARCHAR ( 20 ),
gender CHAR ( 1 ),
telephone VARCHAR ( 20 ),
address VARCHAR ( 50 ) 
);

1.3.建立实体类

package com.ssm.domain;

public class Customer {
	private Integer id;
	private Integer name;
	private Integer gender;
	private Integer telephone;
	private Integer address;
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public Integer getName() {
		return name;
	}
	public void setName(Integer name) {
		this.name = name;
	}
	public Integer getGender() {
		return gender;
	}
	public void setGender(Integer gender) {
		this.gender = gender;
	}
	public Integer getTelephone() {
		return telephone;
	}
	public void setTelephone(Integer telephone) {
		this.telephone = telephone;
	}
	public Integer getAddress() {
		return address;
	}
	public void setAddress(Integer address) {
		this.address = address;
	}
	
}

1.4.建立Mapper接口

package com.ssm.dao;

import com.ssm.domain.Customer;

public interface CustomerMapper {
	
	/**
	 * 添加客户
	 */
	public void saveCustomer(Customer customer); 
}

1.5.建立sql映射文件

注意：这个namespace一定要和Mapper文件的权限定类名路径一致

<?xml version="1.0" encoding="UTF-8" ?> 
<!DOCTYPE mapper  
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"  
"http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 
<!-- 该文件编写mybatis中的mapper接口里面的方法提供对应的sql语句 -->
<mapper namespace="com.ssm.dao.CustomerMapper">
	<!-- 添加客户 -->
	<insert id="saveCustomer" parameterType="com.ssm.domain.Customer">
		insert into t_customer(NAME,gender,telephone,address) values (#{name},#{gender},#{telephone},#{address})
	</insert>
</mapper>

1.6.建立sqlMapConfing.xml

<?xml version="1.0" encoding="UTF-8" ?> 
<!DOCTYPE configuration  
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"  
"http://mybatis.org/dtd/mybatis-3-config.dtd"> 
<configuration>
	<!-- 和spring整合后environments配置将废除 -->
	<environments default="development">
		<environment id="development">
		<!-- 使用JDBC事务管理 -->
		<transactionManager type="JDBC"/>
		<!-- 数据库连接池 -->
			<dataSource type="POOLED">
				<property name="driver" value="com.mysql.jdbc.Driver"/>
				<property name="url" value="jdbc:mysql:3306/ssm?characterEncoding=utf-8"/>
				<property name="username" value="root"/>
				<property name="password" value="123456"/>
			</dataSource>
		</environment>
	</environments>
	<!-- 查找sql映射文件 -->
	<mappers>
		<mapper resource="mapper/CustomerMapper.xml"/>
	</mappers>
</configuration>

1.7.编写测试类

package com.ssm.test;

import java.io.IOException;
import java.io.InputStream;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.Test;

import com.ssm.dao.CustomerMapper;
import com.ssm.domain.Customer;

public class MyBatisTest {
	@Test
	public void Test() throws IOException
	{
		//1.创建SqlSessionFactoryBuilder
		SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder();
		
		//加载sqlMapConfig.xml文件
		InputStream is = Resources.getResourceAsStream("sqlMapConfig.xml");
		
		//2.创建sqlSessionFactory
		SqlSessionFactory factory = builder.build(is);
		
		//3.打开SqlSession
		SqlSession sqlSession = factory.openSession();
		
		//4.获取Mapper接口对象
		CustomerMapper customerMapper = sqlSession.getMapper(CustomerMapper.class);
		
		//5.操作
		Customer customer = new Customer();
		customer.setName("小张");
		customer.setGender("男");
		customer.setTelephone("020-33333333");
		customer.setAddress("北京青鸟");
		
		customerMapper.saveCustomer(customer);
		
		//6.事务
		sqlSession.commit();
		
		//7.关闭
		sqlSession.close();
		
	}
}