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@ -0,0 +1,94 @@
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<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
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<mapper namespace="com.itheima.dao.StudentDao" >
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<!--分页查询-->
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<select id="getStudentList" parameterType="Student" resultType="Student">
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select *from d_student
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<where>
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<if test="s_name!=null and s_name!='' ">
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and s_name like '%${s_name}%'
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</if>
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<if test="s_studentid!=null and s_studentid!=0">
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and s_studentid like '%${s_studentid}%'
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</if>
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<if test="s_classid!=null and s_classid!=0">
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and s_classid like '%${s_classid}%'
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</if>
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<if test="s_classname!=null and s_classname!='' ">
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and s_classname like '%${s_classname}%'
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</if>
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</where>
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ORDER BY s_id asc
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limit #{currentPage},#{pageSize}
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</select>
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<!--查询数据总数-->
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<select id="totalCount" resultType="Integer">
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select count(s_studentid) from d_student
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<where>
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<if test="s_name!=null and s_name!='' ">
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and s_name like '%${s_name}%'
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</if>
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<if test="s_studentid!=null and s_studentid!=0">
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and s_studentid like '%${s_studentid}%'
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</if>
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<if test="s_classid!=null and s_classid!=0">
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and s_classid like '%${s_classid}%'
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</if>
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<if test="s_classname!=null and s_classname!='' ">
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and s_classname like '%${s_classname}%'
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</if>
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</where>
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</select>
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<!--通过id删除学生信息-->
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<delete id="deleteStudent" parameterType="Integer" >
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delete from d_student where s_id=#{s_id}
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</delete>
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<!--添加学生信息-->
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<insert id="addStudent" parameterType="Student" keyProperty="s_id" useGeneratedKeys="true">
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insert into d_student (s_studentid,s_name,s_sex,s_age,s_phone,s_classid,s_classname,s_dormitoryid)
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values(#{s_studentid},#{s_name},#{s_sex},#{s_age},#{s_phone},#{s_classid},#{s_classname},#{s_dormitoryid})
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</insert>
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<select id="findStudentById" parameterType="Integer" resultType="Student" >
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select * from d_student where s_id=#{s_id}
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</select>
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<!--修改学生信息-->
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<update id="updateStudent" parameterType="Student">
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update d_student
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<set>
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<if test="s_studentid!=null and s_studentid!=0">
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s_studentid=#{s_studentid},
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</if>
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<if test="s_name !=null and s_name !=''">
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s_name=#{s_name},
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</if>
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<if test="s_sex !=null and s_sex !=''">
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s_sex=#{s_sex},
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</if>
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<if test="s_age !=null and s_age !=0">
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s_age=#{s_age},
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</if>
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<if test="s_phone !=null and s_phone !=0">
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s_phone=#{s_phone},
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</if>
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<if test="s_classid!=null and s_classid!=0">
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s_classid=#{s_classid},
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</if>
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<if test="s_classname !=null and s_classname !=''">
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s_classname=#{s_classname},
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</if>
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<if test="s_dormitoryid!=null and s_dormitoryid!=0">
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s_dormitoryid=#{s_dormitoryid},
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</if>
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</set>
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where s_id = #{s_id}
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</update>
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<select id="getAll" resultType="Student">
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select * from d_student;
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</select>
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</mapper>
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