| <?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="com.zt.life.sys.dao.SysUserRegDao"> | 
|   | 
|     <select id="existUsername" resultType="java.lang.Integer"> | 
|         select count(1) | 
|         from SYS_USER a | 
|         <where> | 
|             is_delete = 0 | 
|             <if test="whereSql!=null"> | 
|                and user_name = #{username} | 
|             </if> | 
|         </where> | 
|     </select> | 
|   | 
|     <update id="test"> | 
|         update SYS_USER set real_name = #{realName} where username = #{userName} | 
|     </update> | 
|   | 
| </mapper> |