src/config/mybatis/mapper/admin/UserMapper.xml

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<?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.ischoolbar.programmer.dao.admin.UserDao">
	<!-- 根据用户名查找用户 -->
	<select id="findByUsername" parameterType="String" resultType="User">
		select * from user where username = #{username}
	</select>
	<!-- 添加用户 -->
	<insert id="add" parameterType="User">
		insert into user(id,username,password,roleId,photo,sex,age,address) values(null,#{username},#{password},#{roleId},#{photo},#{sex},#{age},#{address})
	</insert>
	<!-- 修改用户 -->
	<update id="edit" parameterType="User">
		update user set username = #{username},roleId = #{roleId},photo = #{photo},sex = #{sex},age = #{age},address = #{address} where id = #{id}
	</update>
	<!-- 修改用户密码 -->
	<update id="editPassword" parameterType="User">
		update user set password = #{password} where id = #{id}
	</update>
	<!-- 删除用户 -->
	<delete id="delete" parameterType="String">
		delete from user where id in(${value})
	</delete>
	<!-- 分页获取用户列表 -->
	<select id="findList" parameterType="Map" resultType="User">
		select * from user where 1 = 1 
		<if test="username != null">
			and username like '%${username}%' 
		</if>
		<if test="roleId != null">
			and roleId = #{roleId}  
		</if>
		<if test="sex != null">
			and sex = #{sex}  
		</if>
		<if test="offset != null and pageSize != null">
			limit #{offset},#{pageSize}
		</if>
	</select>
	<!-- 获取符合结果的总记录数 -->
	<select id="getTotal" parameterType="Map" resultType="Integer">
		select count(*) from user where 1 = 1 
		<if test="username != null">
			and username like '%${username}%' 
		</if>
		<if test="roleId != null">
			and roleId = #{roleId}  
		</if>
		<if test="sex != null">
			and sex = #{sex}  
		</if>
	</select>
</mapper>