myBatis主配置文件--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>
    
    <!-- 类型的别名 -->
    <typeAliases>
        <typeAlias type="com.iflytek.entity.User" alias="User"/>
        <typeAlias type="com.iflytek.entity.Department" alias="Department"/>
    </typeAliases>
    
    <environments default="mysql">
        
        <environment id="mysql">
            <!-- 事务管理    JDBC/MANAGER -->
            <transactionManager type="JDBC"></transactionManager>
            <!-- pool:连接池    UNPOOLED -->
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost:3306/test"/>
                <property name="username" value="root"/>
                <property name="password" value="root"/>
            </dataSource>
        </environment>
        
        <environment id="sqlserver">
            <!-- 事务管理    JDBC/MANAGER -->
            <transactionManager type="JDBC"></transactionManager>
            <!-- pool:连接池 -->
            <dataSource type="POOLED">
                <property name="driver" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/>
                <property name="url" value="jdbc:sqlserver://localhost:1433;databaseName=test2"/>
                <property name="username" value="sa"/>
                <property name="password" value="sa"/>
            </dataSource>
        </environment>
        
    </environments>
    
    <!-- 配置每个表的映射文件 -->
    <mappers>
        <mapper resource="com/iflytek/entity/User.xml"/>
        <mapper resource="com/iflytek/entity/Department.xml"/>
    </mappers>

</configuration>