基于SSM框架的web入门项目(二)学习记录

配合哔哩哔哩视频学习【SSM 框架】SpringMVC+Spring+Mybatis SSM 整合+实战+源码7-10集

2.MyBatis整合Spring-有Mapper实现类

2.1.导入必须包

mybatis-spring
spring-ioc
spring-aop
spring-tx
spring-context

2.2.编写Mapper的实现类

接口：

package com.ssm.dao;

import com.ssm.domain.Customer;

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

实现类：

package com.ssm.dao.impl;

import org.apache.ibatis.session.SqlSession;
import org.mybatis.spring.support.SqlSessionDaoSupport;

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

public class CustomerMapperImpl extends SqlSessionDaoSupport implements CustomerMapper {

	public void saveCustomer(Customer customer) {
		SqlSession sqlSession = this.getSqlSession();
		sqlSession.insert("saveCustomer",customer);
		//这里不需要事务的提交
	}

}

2.3.编写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: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">
	
	<!-- 读取jdbc.properties -->
	<context:property-placeholder location="classpath:jdbc.properties"/>
	
	<!-- 创建DataSource -->
	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
		<property name="url" value="${jdbc.url}"/>
		<property name="driverClassName" value="${jdbc.driverClass}"/>
		<property name="username" value="${jdbc.user}"/>
		<property name="password" value="${jdbc.password}"/>
		<property name="maxActive" value="10"/>
		<property name="maxIdle" value="5"/>
	</bean>	
	
	<!-- 创建SqlSessionFactory对象 -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<!-- 关联连接池 -->
		<property name="dataSource" ref="dataSource"/>
		<!-- 加载sql映射文件 -->
		<property name="mapperLocations" value="classpath:mapper/*.xml"/>
	</bean>
	
	<!-- 创建CustomerMapperImpl对象，注入SqlSessionFactory -->
	<bean id="customerMapper" class="com.ssm.dao.impl.CustomerMapperImpl">
		<!-- 关联sqlSessionFactory -->
		<property name="sqlSessionFactory" ref="sqlSessionFactory"/>
	</bean>
	
</beans>

2.4.编写测试类