javaEE Mybatis，Mybatis与Spring整合之传统Dao开发(不推荐)。SqlSessionDaoSupport(Mybatis提供的Dao层基类)

Mybatis的Jar包下载：https://pan.baidu.com/s/16P-MGgn53e1EtCL6wQ9VWA  密码：1azq

src/applicationContext.xml（Spring核心配置文件）：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">


	<context:property-placeholder location="classpath:db.properties"/>
	
	<!-- DBCP数据库连接池 -->
	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
		<property name="driverClassName" value="${jdbc.driver}" />
		<property name="url" value="${jdbc.url}" />
		<property name="username" value="${jdbc.username}" />
		<property name="password" value="${jdbc.password}" />
		<property name="maxActive" value="10" />
		<property name="maxIdle" value="5" />
	</bean>
	
	<!-- Mybatis的工厂 -->
	<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource"/>
		<!-- Mybatis核心配置文件的位置 -->
		<property name="configLocation" value="classpath:sqlMapConfig.xml"/>
	</bean>
	
	<!-- Dao层,传统Dao的开发方式 -->
	<bean id="userDao" class="com.xxx.mybatis.dao.UserDaoImpl">
		<property name="sqlSessionFactory" ref="sqlSessionFactoryBean"/>
	</bean>
	

</beans>

src/sqlMapConfig.xml（Mybatis核心配置文件）：

<?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>
	<!-- 为类型设置别名 -->
	<typeAliases>
		<package name="com.xxx.mybatis.pojo" />
	</typeAliases>
	
	<!-- 加载外部实体类的Sql映射文件 -->
	<mappers>
		<package name="com.xxx.mybatis.mapper"/>
	</mappers>

</configuration>

UserDaoImpl.java（传统Dao层实现类,继承SqlSessionDaoSupport类）：

package com.xxx.mybatis.dao;

import org.mybatis.spring.support.SqlSessionDaoSupport;

//原始Dao开发。  继承SqlSessionDaoSupport类(Mybatis自带的Dao层父类)
public class UserDaoImpl extends SqlSessionDaoSupport implements UserDao {

	//父类SqlSessionDaoSupport已经声明了SqlSessionFactory工厂

	public void insertUser(){
		//this.getSqlSession().insert(xxx, xxx);  //通过父类获取sqlSession
	}
	
}

db.properties：

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/数据库名?characterEncoding=utf-8
jdbc.username=root
jdbc.password=123