feat:新增查询学生列表功能

enlish-service/src/main/resources/mapper/StudentDOMapper.xml

@@ -0,0 +1,34 @@
+<?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.yinlihupo.enlish.service.domain.mapper.StudentDOMapper">
+    <resultMap id="BaseResultMap" type="com.yinlihupo.enlish.service.domain.dataobject.StudentDO">
+        <id column="id" jdbcType="INTEGER" property="id" />
+        <result column="name" jdbcType="VARCHAR" property="name" />
+        <result column="class_id" jdbcType="INTEGER" property="classId" />
+        <result column="grade_id" jdbcType="INTEGER" property="gradeId" />
+        <result column="initial_vocabulary_size" jdbcType="INTEGER" property="initialVocabularySize" />
+        <result column="current_vocabulary_size" jdbcType="INTEGER" property="currentVocabularySize" />
+    </resultMap>
+
+    <sql id="Base_Column_List">
+        id, `name`, class_id, grade_id, initial_vocabulary_size, current_vocabulary_size
+    </sql>
+
+    <select id="selectStudentDOListByClassIdAndGradeId" resultMap="BaseResultMap">
+        select *
+        from student
+        where 1 = 1
+        <if test="classId != null">
+            AND class_id = #{classId}
+        </if>
+        <if test="gradeId != null">
+            AND grade_id = #{gradeId}
+        </if>
+        LIMIT #{offset}, #{pageSize}
+    </select>
+
+    <select id="selectStudentCount">
+        select count(1)
+        from student
+    </select>
+</mapper>