resources    spring        applicationContext.xml    sqlmap        mapper            aaamapper.xml            bbbmapper.xml        mybatis-config.xml

<dependency>    <groupId>org.ibatis</groupId>    <artifactId>ibatis</artifactId>    <version>2.3.3.720</version></dependency>

<dependency>    <groupId>org.mybatis</groupId>    <artifactId>mybatis</artifactId>    <version>3.4.1</version></dependency><dependency>    <groupId>org.mybatis</groupId>    <artifactId>mybatis-spring</artifactId>    <version>1.3.0</version></dependency>

<bean id="xxsqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">    <property name="dataSource" ref="dataSource_agencyjizhong"/>    <property name="mapperLocations" value=http://www.mamicode.com/"classpath:sqlmap/mapper/*.xml"/>    <property name="configLocation" value=http://www.mamicode.com/"classpath:sqlmap/mybatis-config.xml"/></bean>

<bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">    <constructor-arg index="0" ref="xxsqlSessionFactory"/></bean><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">    <!--映射器接口文件的包路径-->    <property name="basePackage" value=http://www.mamicode.com/"com.maosheng.mapper"/>    <property name="sqlSessionFactoryBeanName" value=http://www.mamicode.com/"xxsqlSessionFactory"/></bean>

mybatis-config.xml

目录结构

<configuration>    <settings></settings>    <typeAliases></typeAliases>    <mappers></mappers></configuration>

1. dtd

   <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">

2. 根节点
   • 升级前 sqlMapConfig
   • 升级后 configuration
3. settings
   • 升级前 <settings x="y" foo="bar"/>
   • 升级后 

     <settings><setting name="x" value="y"/><setting name="foo" value="bar"/></settings>

4. typeAlias

   将每个***mapper.xml中下的typeAlias全部移至sqlMapConfig.xml中下 

***mapper.xml

1. dtd

   <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

2. mapper
3. parameterType
   • 升级前 parameterClass
   • 升级后 parameterType
4. resultType
   • 升级前 resultClass
   • 升级后 resultType
5. 内联参数
   • 升级前 #value#或者value
   • 升级后 #{value}

注意和${value}的区别