kg/target/classes/mapping/UserDao.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="com.zglc.kg.dao.UserDao">

	<!-- 可根据自己的需求，是否要使用 -->
    <resultMap type="com.zglc.kg.entity.UserEntity" id="userMap">
        <result property="id" column="id"/>
        <result property="userName" column="user_name"/>
        <result property="realName" column="real_name"/>
        <result property="password" column="password"/>
        <result property="departmentId" column="department_id"/>
        <result property="departmentName" column="department_name"/>
        <result property="roleId" column="role_id"/>
        <result property="roleName" column="role_name"/>
        <result property="sex" column="sex"/>
        <result property="birth" column="birth"/>
        <result property="img" column="img"/>
        <result property="isEnable" column="is_enable"/>
        <result property="remark" column="remark"/>
    </resultMap>

    <select id="listAll" resultMap="userMap">
        select id,user_name,real_name,password,department_id,department_name,role_id,role_name,sex,birth,img,is_enable,
        remark
        from t_user
        where id > 1
    </select>

    <select id="getCount" resultType="java.lang.Integer">
        select count(1)
        from t_user
        where id > 1
    </select>

    <select id="findByName" parameterType="String" resultMap="userMap">
        select id,user_name,real_name,password,department_id,department_name,role_id,role_name,sex,birth,img,is_enable,remark
        from t_user where user_name like #{name}
        and id > 1
    </select>

    <select id="findByUser" parameterType="com.zglc.kg.entity.UserEntity" resultMap="userMap">
        select id,user_name,real_name,password,department_id,department_name,role_id,role_name,sex,birth,img,is_enable,
        remark from t_user where 1=1
        <if test="userName != null">
            and user_name like (CONCAT(CONCAT('%',#{userName}),'%'))
        </if>
        <if test="departmentName != null">
            and department_name = #{departmentName}
        </if>
        <if test="roleName != null">
            and role_name = #{roleName}
        </if>
         <if test="sex != null">
             and sex = #{sex}
         </if>
    </select>

</mapper>