mybatis-config.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>

  <properties resource="db.properties"></properties>

  <plugins>
    <plugin interceptor="interceptor.MyBatisLogInterceptor"></plugin>
  </plugins>

  <environments default="development">
    <environment id="development">
      <transactionManager type="JDBC" />
      <dataSource type="POOLED">
        <property name="driver" value="${driver}" />
        <property name="url" value="${url}" />
        <property name="username" value="${username}" />
        <property name="password" value="${password}" />
      </dataSource>
    </environment>
  </environments>
  
  <mappers>
    <mapper class="mapper.Test1Mapper"/>
  </mappers>
  
</configuration>