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<?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">
<!-- 根标签 -->
<configuration>
  <properties resource="db.properties"></properties>
  <typeHandlers>
    <typeHandler handler="com.cesgroup.mybatisHomework.handle.PersonTypeHandle"></typeHandler>
  </typeHandlers>
  <!-- 环境,可以配置多个,default:指定采用哪个环境 -->
  <environments default="dev">
    <!-- id:唯一标识 -->
    <environment id="dev">
      <!-- 事务管理器,JDBC类型的事务管理器 -->
      <transactionManager type="JDBC"/>
      <!-- 数据源,池类型的数据源 -->
      <dataSource type="POOLED">
        <property name="driver" value="${driver}"/> <!-- 配置了properties,所以可以直接引用 -->
        <property name="url" value="${url}"/>
        <property name="username" value="${username}"/>
        <property name="password" value="${password}"/>
      </dataSource>
    </environment>
  </environments>
  <mappers>
    <mapper resource="MyMapper.xml"/>
  </mappers>
</configuration>