报错（mybatis）

1、Invalid bound statement (not found):xxx

检查UserMapper.xml文件所在namespace名称是否和Mapper interface所在的包名保持一致

CustomerMapper.xml中：
<mapper namespace="com.clife.machine.bussiness.chealth.dao.CustomerDao">

CustomerDao中：
package com.clife.machine.business.chealth.dao;

 2、A query was run and no Result Maps were found for the Mapped Statement  xxx .

It's likely that neither a Result Type nor a Result Map was specified.

sql语句没有返回类型参数