mybatis中mapUnderscoreToCamelCase的使用
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>
- <settings>
- <setting name="mapUnderscoreToCamelCase" value="true" />
- </settings>
- </configuration>
开始以为配置了这个文件就可以了，搞了半天还是没生效，不能转驼峰，然后查了下configuration初始化时它的值也为true，说明初始化是正确，后来才知道原因出在mapper文件
- <?xml version="1.0" encoding="UTF-8" ?>
- <!DOCTYPE mapper
- PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
- "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
- <mapper namespace="menu.mysql">
- <select id="selectMenu" resultType="org.me.menu.Menu">
- select MENU_ID, MENU_NAME, PARENT_ID, URL, TITLE, LEAF, ORDER_SEQ
- from mysql.MENU
- order by ORDER_SEQ
- </select>
- </mapper>
开始我配置成resultType="hashMap"是可以返回结果，但是结果是没有自动转成驼峰，要真正存在一个与它对应的驼峰Bean与它对应才生效，resultType="org.me.menu.Menu"
mybatis-config.xml [html]