201812G5/src/dao/EmployeeMapper.xml

<?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="dao.EmployeeDao">

  <select id="selectEmployees" resultType="model.Employee">
    select * from employee
  </select>
  
  <insert id="insertEmployee" parameterType="model.Employee">
  insert into employee values(#{id},#{name},#{age},#{salary},#{department})
  </insert>
  
  <delete id="deleteEmployee" parameterType="java.lang.Integer">
  delete from employee where id = #{id}
  </delete>
  
 <update id="updateEmployee" parameterType="model.Employee">
 update employee set name=#{name},age=#{age},salary=#{salary},department=#{department} where id=#{id}
 </update>
</mapper>