MyBatis配置文件mybatis.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>

    <!-- 将数据库下划线命名映射为java中的驼峰命名-->
    <settings>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
    <!--配置别名-->
    <typeAliases>
        <package name="com.kaishengit.entity"/>
    </typeAliases>

    <!--配置数据库环境-->
    <environments default="dev">
        <environment id="dev">
            <transactionManager type="JDBC"></transactionManager>
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql:///mybatis"/>
                <property name="username" value="root"/>
                <property name="password" value="123456"/>
            </dataSource>
        </environment>
    </environments>

    <!--配置mapper文件-->
    <mappers>
        <!--classpath中的路径-->
        <mapper resource="mapper/UserMapper.xml"/>
        <mapper resource="mapper/CountryMapper.xml"/>
        <mapper resource="mapper/MovieMapper.xml"/>
    </mappers>

</configuration>