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>
    <!--配置全局属性  -->
    <settings>
        <!-- 使用jdbc的getGeneratedKeys获取数据库自增主键值 -->
        <setting name="useGeneratedKeys" value="true"/>
        <!--使用列标签替换列别名 默认：true  -->
        <setting name="useColumnLabel" value="true"/>
        <!-- 开启驼峰命名转换：Table{create_time}->Entity{createTime} -->
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
</configuration>