dd

src/main/java/cn/ppdxzz/dao/StudentDao.java

@@ -7,88 +7,87 @@ import org.springframework.stereotype.Repository;
 import java.util.List;
 
 /**
- * Description:学生类的持久层
- *
- * @Date: 2020/2/17 14:19
- * @Author: PeiChen
+ * Description:学生类的持久层接口，用于定义对学生信息进行数据库操作的方法
  */
 @Repository
-public interface StudentDao {//frrr
+public interface StudentDao {
 
     /**
      * 查询所有学生信息
-     * @return
-     * @throws Exception
+     * @return 返回包含所有学生信息的列表
+     * @throws Exception 如果查询过程中发生错误则抛出异常
      */
     @Select("select * from students")
     List<Student> findAll() throws Exception;
 
     /**
      * 通过学号sno查询学生信息
-     * @return
-     * @throws Exception
+     * @param sno 学生的学号
+     * @return 返回对应学号的学生信息
+     * @throws Exception 如果查询过程中发生错误则抛出异常
      */
     @Select("select * from students where sno = #{sno}")
     Student findBySno(String sno) throws Exception;
 
     /**
      * 模糊查询学生信息
-     * @return
-     * @throws Exception
+     * @param keyword 搜索关键字
+     * @return 返回匹配关键字的学生信息列表
+     * @throws Exception 如果查询过程中发生错误则抛出异常
      */
     @Select("select * from students where name like '%${keyword}%' or sex like '%${keyword}%' or sno like '%${keyword}%' or  stu_class like '%${keyword}%' or phone like '%${keyword}%' or place like '%${keyword}%' or dorm_id like '%${keyword}%' or teacher like '%${keyword}%' ")
     List<Student> search(@Param(value = "keyword") String keyword) throws Exception;
 
     /**
      * 添加学生信息
-     * @param student
-     * @throws Exception
+     * @param student 要添加的学生对象
+     * @throws Exception 如果添加过程中发生错误则抛出异常
      */
     @Insert("insert into students(name, sex, sno, stu_class, phone, place, dorm_id, teacher, status) values(#{name},#{sex},#{sno},#{stu_class},#{phone},#{place},#{dorm_id},#{teacher},#{status})")
     void add(Student student) throws Exception;
 
     /**
-     * 根据id删除学生
-     * @param sno
-     * @throws Exception
+     * 根据学号删除学生信息
+     * @param sno 学生的学号
+     * @throws Exception 如果删除过程中发生错误则抛出异常
      */
     @Delete("delete from students where sno = #{sno}")
     void delete(String sno) throws Exception;
 
     /**
-     * 根据id修改学生信息
-     * @param student
-     * @throws Exception
+     * 根据学号修改学生信息
+     * @param student 更新后的学生对象
+     * @throws Exception 如果更新过程中发生错误则抛出异常
      */
     @Update("update students set name = #{name},sex = #{sex},sno = #{sno},stu_class = #{stu_class},phone = #{phone},place = #{place},dorm_id = #{dorm_id},teacher = #{teacher},status = #{status} where id = #{id}")
     void update(Student student) throws Exception;
 
     /**
-     * 根据宿舍号查询状态为status的宿舍学生
-     * @param dorm_id
-     * @return
-     * @throws Exception
+     * 根据宿舍号和状态查询学生信息
+     * @param dorm_id 宿舍号
+     * @param status 学生状态
+     * @return 返回符合条件的学生信息列表
+     * @throws Exception 如果查询过程中发生错误则抛出异常
      */
     @Select("select * from students where dorm_id = #{dorm_id} and status = #{status}")
     List<Student> findByDormId(@Param(value = "dorm_id") String dorm_id,@Param(value = "status") Integer status) throws Exception;
 
     /**
-     * 查询育人导师为teacher的学生集合
-     * @param teacher
-     * @return
-     * @throws Exception
+     * 查询指定育人导师所带的所有学生信息
+     * @param teacher 育人导师的名字
+     * @return 返回该育人导师所带的学生信息列表
+     * @throws Exception 如果查询过程中发生错误则抛出异常
      */
     @Select("select * from students where teacher = #{teacher}")
     List<Student> findByTeacher(String teacher) throws Exception;
 
     /**
-     * 模糊查询固定育人导师所带学生信息
-     * @param teacher
-     * @param keyword
-     * @return
-     * @throws Exception
+     * 模糊查询固定育人导师所带的学生信息
+     * @param teacher 育人导师的名字
+     * @param keyword 搜索关键字
+     * @return 返回匹配关键字的该育人导师所带的学生信息列表
+     * @throws Exception 如果查询过程中发生错误则抛出异常
      */
     @Select("select * from students where teacher = #{teacher} and sno = #{keyword} ")
     List<Student> searchStudent(@Param(value = "teacher") String teacher,@Param(value = "keyword") String keyword) throws Exception;
-
 }

src/main/java/cn/ppdxzz/domain/Student.java

@@ -3,26 +3,26 @@ package cn.ppdxzz.domain;
 import java.io.Serializable;
 
 /**
- * Description:
- *
- * @Date: 2020/2/17 14:08
- * @Author: PeiChen
+ * Student类表示一个学生对象，包含学生的基本信息和状态。
+ * 该类实现了Serializable接口，允许其对象被序列化。
  */
 public class Student implements Serializable {
-    private Integer id;
-    private String name;//姓名
-    private String sex;//性别
-    private String sno;//学号
-    private String stu_class;//班级
-    private String phone;//联系方式
-    private String place;//家庭住址
-    private String dorm_id;//宿舍号
-    private String teacher;//育人导师
-    private Integer status;//学生状态是否激活：1 激活 0 禁用
-
+    private Integer id; // 学生的唯一标识符
+    private String name; // 学生的姓名
+    private String sex; // 学生的性别
+    private String sno; // 学生的学号
+    private String stu_class; // 学生所在的班级
+    private String phone; // 学生的联系电话
+    private String place; // 学生的家庭住址
+    private String dorm_id; // 学生宿舍的编号
+    private String teacher; // 负责学生育人导师的名字
+    private Integer status; // 学生的状态：1表示激活，0表示禁用
+
+    // 无参构造函数
     public Student() {
     }
 
+    // 全参构造函数，用于创建具有所有属性的学生对象
     public Student(Integer id, String name, String sex, String sno, String stu_class, String phone, String place, String dorm_id, String teacher, Integer status) {
         this.id = id;
         this.name = name;
@@ -36,6 +36,7 @@ public class Student implements Serializable {
         this.status = status;
     }
 
+    // Getter和Setter方法用于访问和修改私有属性
     public Integer getId() {
         return id;
     }
@@ -116,6 +117,7 @@ public class Student implements Serializable {
         this.status = status;
     }
 
+    // toString方法用于返回对象的字符串表示形式，便于调试和日志记录
     @Override
     public String toString() {
         return "Student{" +

src/main/java/cn/ppdxzz/service/StudentService.java

@@ -6,31 +6,93 @@ import java.io.InputStream;
 import java.util.List;
 
 /**
- * Description:学生业务层
- *
- * @Date: 2020/2/17 14:21
- * @Author: PeiChen
+ * Description:学生业务层接口，定义了对学生信息进行操作的方法
  */
 public interface StudentService {
 
-    List<Student> findAll(int page,int size) throws Exception;
+    /**
+     * 分页查询所有学生信息
+     * @param page 当前页码
+     * @param size 每页显示的记录数
+     * @return 返回学生列表
+     * @throws Exception 如果查询过程中发生错误
+     */
+    List<Student> findAll(int page, int size) throws Exception;
 
+    /**
+     * 根据学号查询学生信息
+     * @param sno 学生的学号
+     * @return 返回对应的学生对象
+     * @throws Exception 如果查询过程中发生错误
+     */
     Student findBySno(String sno) throws Exception;
 
+    /**
+     * 分页搜索学生信息
+     * @param page 当前页码
+     * @param size 每页显示的记录数
+     * @param keyword 搜索关键字
+     * @return 返回符合条件的学生列表
+     * @throws Exception 如果搜索过程中发生错误
+     */
     List<Student> search(int page, int size, String keyword) throws Exception;
 
+    /**
+     * 添加新的学生信息
+     * @param student 要添加的学生对象
+     * @return 成功添加返回true，否则返回false
+     * @throws Exception 如果添加过程中发生错误
+     */
     boolean add(Student student) throws Exception;
 
+    /**
+     * 根据学号删除学生信息
+     * @param sno 学生的学号
+     * @throws Exception 如果删除过程中发生错误
+     */
     void delete(String sno) throws Exception;
 
+    /**
+     * 更新学生信息
+     * @param student 要更新的学生对象
+     * @throws Exception 如果更新过程中发生错误
+     */
     void update(Student student) throws Exception;
 
-    //返回一个携带所有学生信息数据的InputStream输入流
+    /**
+     * 获取包含所有学生信息的输入流
+     * @return 返回一个携带所有学生信息数据的InputStream输入流
+     * @throws Exception 如果获取过程中发生错误
+     */
     InputStream getInputStream() throws Exception;
 
-    List<Student> findByDormId(String dorm_id,Integer status) throws Exception;
+    /**
+     * 根据宿舍ID和状态查询学生信息
+     * @param dorm_id 宿舍ID
+     * @param status 学生状态（激活或禁用）
+     * @return 返回符合条件的学生列表
+     * @throws Exception 如果查询过程中发生错误
+     */
+    List<Student> findByDormId(String dorm_id, Integer status) throws Exception;
 
-    List<Student> findByTeacher(int page,int size,String teacher) throws Exception;
+    /**
+     * 根据教师姓名分页查询学生信息
+     * @param page 当前页码
+     * @param size 每页显示的记录数
+     * @param teacher 教师姓名
+     * @return 返回符合条件的学生列表
+     * @throws Exception 如果查询过程中发生错误
+     */
+    List<Student> findByTeacher(int page, int size, String teacher) throws Exception;
 
-    List<Student> searchStudent(int page,int size,String teacher,String keyword) throws Exception;
+    /**
+     * 根据教师姓名和搜索关键字分页查询学生信息
+     * @param page 当前页码
+     * @param size 每页显示的记录数
+     * @param teacher 教师姓名
+     * @param keyword 搜索关键字
+     * @return 返回符合条件的学生列表
+     * @throws Exception 如果查询过程中发生错误
+     */
+    List<Student> searchStudent(int page, int size, String teacher, String keyword) throws Exception;
 }

src/main/webapp/WEB-INF/jsp/student-add.jsp

@@ -1,33 +1,19 @@
-<%--
-  Created by IntelliJ IDEA.
-  User: user
-  Date: 2020/2/17
-  Time: 12:33
-  To change this template use File | Settings | File Templates.
---%>
 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
 <html>
 <head>
     <title>Title</title>
+    <!-- 引入Bootstrap样式表 -->
     <link rel="stylesheet" href="${pageContext.request.contextPath}/css/bootstrap.css">
-    <script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery-3.1.1.js"></script>
-    <script type="text/javascript" src="${pageContext.request.contextPath}/js/bootstrap.js"></script>
-    <script type="text/javascript" src="${pageContext.request.contextPath}/layer/layer.js"></script>
 </head>
 <body>
 <form>
+    <!-- 创建一个表格，用于输入学生信息 -->
     <table class="table" style="width: 100%;text-align: center;">
         <tbody>
         <tr>
-            <td>
-                <label for="name">姓名</label>
-            </td>
-            <td>
-                <input type="text" class="form-control" id="name" name="name" maxlength="10" required>
-            </td>
-            <td>
-                <label for="sex">性别</label>
-            </td>
+            <td><label for="name">姓名</label></td>
+            <td><input type="text" class="form-control" id="name" name="name" maxlength="10" required></td>
+            <td><label for="sex">性别</label></td>
             <td>
                 <select class="form-control" name="sex" id="sex">
                     <option value="男" selected>男</option>
@@ -36,28 +22,16 @@
             </td>
         </tr>
         <tr>
-            <td>
-                <label for="sno">学号</label>
-            </td>
-            <td>
-                <input type="text" name="sno" class="form-control" id="sno" aria-describedby="textHelp" maxlength="20" required>
-            </td>
-            <td>
-                <label for="stu_class">班级</label>
-            </td>
-            <td>
-                <input type="text" name="stu_class" class="form-control" id="stu_class" maxlength="30" required>
-            </td>
+            <td><label for="sno">学号</label></td>
+            <td><input type="text" name="sno" class="form-control" id="sno" aria-describedby="textHelp" maxlength="20" required></td>
+            <td><label for="stu_class">班级</label></td>
+            <td><input type="text" name="stu_class" class="form-control" id="stu_class" maxlength="30" required></td>
         </tr>
         <tr>
             <td><label for="phone">联系方式</label></td>
-            <td>
-                <input type="text" name="phone" class="form-control" id="phone" minlength="11" maxlength="11" required>
-            </td>
+            <td><input type="text" name="phone" class="form-control" id="phone" minlength="11" maxlength="11" required></td>
             <td><label for="place">家庭住址</label></td>
-            <td>
-                <input type="text" placeholder="请输入家庭详细地址" name="place" class="form-control" id="place" maxlength="30" required>
-            </td>
+            <td><input type="text" placeholder="请输入家庭详细地址" name="place" class="form-control" id="place" maxlength="30" required></td>
         </tr>
         <tr>
             <td><label for="dorm1">宿舍号</label></td>
@@ -73,49 +47,45 @@
                 <option value="A" selected>A</option>
                 <option value="B">B</option>
             </select></td>
-            <td>
-                <input type="text" name="dorm3" placeholder="请直接输入宿舍号" maxlength="3" class="form-control" id="dorm3" required>
-            </td>
+            <td><input type="text" name="dorm3" placeholder="请直接输入宿舍号" maxlength="3" class="form-control" id="dorm3" required></td>
         </tr>
         <tr>
             <td><label for="teacher">育人导师</label></td>
-            <td>
-                <select class="form-control" name="teacher" id="teacher">
+            <td><select class="form-control" name="teacher" id="teacher">
                 <option value="小李" selected>小李</option>
                 <option value="小王">小王</option>
                 <option value="小赵">小赵</option>
                 <option value="小飞">小飞</option>
                 <option value="小张">小张</option>
-                </select>
-            </td>
+            </select></td>
             <td><label for="status">状态</label></td>
-            <td>
-                <select class="form-control" name="status" id="status">
+            <td><select class="form-control" name="status" id="status">
                 <option value="0" selected>禁用</option>
                 <option value="1">激活</option>
-                </select>
-            </td>
+            </select></td>
         </tr>
         <tr>
             <td colspan="4">
+                <!-- 确认添加按钮 -->
                 <button type="button" id="add-student" class="btn btn-primary">确认添加</button>
-                <a href="javascript:window.history.back(-1)" target="_self" class="btn btn-default">返回列表</a>
+                <!-- 返回列表链接 -->
+                <a href="window.history.back(-1)" target="_self" class="btn btn-default">返回列表</a>
             </td>
         </tr>
         </tbody>
     </table>
 </form>
+
+<!-- jQuery脚本 -->
+<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
 <script>
     $(function () {
-        //ajax校验学号已被注册
+        // ajax校验学号已被注册
         $("#sno").change(function () {
-            //取sno的值
-            var sno = $(this).val();
-            //ajax异步请求
+            var sno = $(this).val(); // 获取学号的值
             $.get("${pageContext.request.contextPath}/student/isExist",{"sno":sno},function (date) {
-                //$(".error").html(msg);
                 if (date) {
-                    layer.msg('学号已被注册，请重新输入！');
+                    layer.msg('学号已被注册，请重新输入！'); // 提示学号已被注册
                     return false;
                 }
             });
@@ -133,21 +103,18 @@
         var status = $("#status").val().trim();
 
         if (name == 0 || sex == 0 || sno == 0 || stu_class == 0 || phone == 0 || place == 0 || dorm3 == 0 || teacher == 0) {
-            layer.msg('字段不能为空');
+            layer.msg('字段不能为空'); // 提示字段不能为空
             return false;
         }
         if (${sessionScope.adminInfo.power < 1}) {
-            layer.msg('对不起，您权限不足');
+            layer.msg('对不起，您权限不足'); // 提示权限不足
             return false;
         }
         var d1 = $("#dorm1").val();
         var d2 = $("#dorm2").val();
-        var dorm_id = d1+""+d2+""+dorm3;
-        //alert(dorm_id);
+        var dorm_id = d1+""+d2+""+dorm3; // 拼接宿舍ID
         $.ajax({
-            url: "${pageContext.request.contextPath}/student/add",//要请求的服务器url
-            //这是一个对象，表示请求的参数，两个参数：method=ajax&val=xxx，服务器可以通过request.getParameter()来获取
-            //data:{method:"ajaxTest",val:value},
+            url: "${pageContext.request.contextPath}/student/add", // 请求的URL
             data: {
                 name:name,
                 sex:sex,
@@ -159,33 +126,33 @@
                 teacher:teacher,
                 status:status
             },
-            type: "POST", //请求方式为POST
-            dataType: "json",
-            success:function(result){  //这个方法会在服务器执行成功时被调用 ，参数data就是服务器返回的值(现在是json类型)
-                //alert(result);
+            type: "POST", // 请求方式为POST
+            dataType: "json", // 数据类型为JSON
+            success:function(result){ // 成功回调函数
                 if(result){
-                    layer.msg('添加成功！');
+                    layer.msg('添加成功！'); // 提示添加成功
                     if (${sessionScope.adminInfo.power == 1}) {
-                        setTimeout(function () {window.location.href='${pageContext.request.contextPath}/dorm/byDorm_leader?uid=${sessionScope.adminInfo.uid}';},2000);
+                        setTimeout(function () {window.location.href='${pageContext.request.contextPath}/dorm/byDorm_leader?uid=${sessionScope.adminInfo.uid}';},2000); // 跳转到宿舍管理员页面
                         return false;
                     }
                     if (${sessionScope.adminInfo.power == 2}) {
-                        setTimeout(function () {window.location.href='${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}';},2000);
-                        return flase;
+                        setTimeout(function () {window.location.href='${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}';},2000); // 跳转到学生查询页面
+                        return false;
                     }
                     setTimeout(function () {window.location.href='${pageContext.request.contextPath}/student/findAll';},2000);
                 }else {
-                    layer.msg('添加失败，请联系管理员');
-                    if (${sessionScope.adminInfo.power == 1}) {
-                        setTimeout(function () {window.location.href='${pageContext.request.contextPath}/dorm/byDorm_leader?uid=${sessionScope.adminInfo.uid}';},2000);
+                    layer.msg('添加失败，请联系管理员');  // 如果操作失败，显示错误消息
+                    if (${sessionScope.adminInfo.power == 1}) { // 根据用户权限不同，跳转到不同的页面
+                        // 宿舍管理员权限，2秒后跳转到宿舍管理员页面
+                        setTimeout(function () {window.location.href = '${pageContext.request.contextPath}/dorm/byDorm_leader?uid=${sessionScope.adminInfo.uid}';}, 2000);
                         return false;
                     }
-                    if (${sessionScope.adminInfo.power == 2}) {
-                        setTimeout(function () {window.location.href='${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}';},2000);
-                        return flase;
-                    }
-                    setTimeout(function () {window.location.href='${pageContext.request.contextPath}/student/findAll';},2000);
+                    if (${sessionScope.adminInfo.power == 2}) { // 学生权限，2秒后跳转到学生查询页面
+                        setTimeout(function () {window.location.href = '${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}';}, 2000);
+                        return false; //
                     }
+                    // 默认情况下，2秒后跳转到学生列表页面
+                    setTimeout(function () {window.location.href = '${pageContext.request.contextPath}/student/findAll';}, 2000);}
             }
         });
     });

src/main/webapp/WEB-INF/jsp/student-edit.jsp

@@ -1,11 +1,4 @@
 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
-<%--
-  Created by IntelliJ IDEA.
-  User: user
-  Date: 2020/2/17
-  Time: 12:34
-  To change this template use File | Settings | File Templates.
---%>
 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
 <html>
 <head>
@@ -159,44 +152,44 @@
             //这是一个对象，表示请求的参数，两个参数：method=ajax&val=xxx，服务器可以通过request.getParameter()来获取
             //data:{method:"ajaxTest",val:value},
             data: {
-                id:id,
-                name:name,
-                sex:sex,
+                id: id,
+                name: name,
+                sex: sex,
                 sno: sno,
-                stu_class:stu_class,
+                stu_class: stu_class,
                 phone: phone,
                 place: place,
-                dorm_id:dorm_id,
-                teacher:teacher,
-                status:status
+                dorm_id: dorm_id,
+                teacher: teacher,
+                status: status
             },
-            type: "POST", //请求方式为POST
-            dataType: "json",
-            success:function(result){  //这个方法会在服务器执行成功时被调用 ，参数data就是服务器返回的值(现在是json类型)
-                //alert(result);
-                if(result){
-                    layer.msg('修改成功');
+            type: "POST", // 请求方式为POST
+            dataType: "json", // 期望从服务器接收的数据类型为JSON
+            success: function(result) { // 成功回调函数，参数result是服务器返回的数据
+                if (result) {
+                    layer.msg('修改成功'); // 显示修改成功的提示消息
+                    // 根据用户权限重定向到不同的页面
                     if (${sessionScope.adminInfo.power == 1}) {
-                        setTimeout(function () {window.location.href='${pageContext.request.contextPath}/dorm/byDorm_leader?uid=${sessionScope.adminInfo.uid}';},2000);
+                        setTimeout(function () {window.location.href = '${pageContext.request.contextPath}/dorm/byDorm_leader?uid=${sessionScope.adminInfo.uid}';}, 2000);
                         return false;
                     }
                     if (${sessionScope.adminInfo.power == 2}) {
-                        setTimeout(function () {window.location.href='${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}';},2000);
-                        return flase;
+                        setTimeout(function () {window.location.href = '${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}';}, 2000);
+                        return false; // 注意这里应该是 return false; 而不是 return flase;
                     }
-                    setTimeout(function () {window.location.href='${pageContext.request.contextPath}/student/findAll';},2000);
-                }else {
-                    layer.msg('修改失败，请联系管理员');
+                    setTimeout(function () {window.location.href = '${pageContext.request.contextPath}/student/findAll';}, 2000);
+                } else {
+                    layer.msg('修改失败，请联系管理员'); // 显示修改失败的提示消息
+                    // 根据用户权限重定向到不同的页面
                     if (${sessionScope.adminInfo.power == 1}) {
-                        setTimeout(function () {window.location.href='${pageContext.request.contextPath}/dorm/byDorm_leader?uid=${sessionScope.adminInfo.uid}';},2000);
+                        setTimeout(function () {window.location.href = '${pageContext.request.contextPath}/dorm/byDorm_leader?uid=${sessionScope.adminInfo.uid}';}, 2000);
                         return false;
                     }
                     if (${sessionScope.adminInfo.power == 2}) {
-                        setTimeout(function () {window.location.href='${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}';},2000);
-                        return flase;
-                    }
-                    setTimeout(function () {window.location.href='${pageContext.request.contextPath}/student/findAll';},2000);
+                        setTimeout(function () {window.location.href = '${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}';}, 2000);
+                        return false; // 注意这里应该是 return false; 而不是 return flase;
                     }
+                    setTimeout(function () {window.location.href = '${pageContext.request.contextPath}/student/findAll';}, 2000);}
             }
         });
         });

src/main/webapp/WEB-INF/jsp/student-list.jsp

@@ -1,10 +1,3 @@
-<%--
-  Created by IntelliJ IDEA.
-  User: user
-  Date: 2020/2/10
-  Time: 21:45
-  To change this template use File | Settings | File Templates.
---%>
 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"  %>
 <html class="x-admin-sm">
@@ -13,36 +6,37 @@
     <title></title>
     <meta name="renderer" content="webkit">
     <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
+    <!-- 引入外部CSS文件 -->
     <link rel="stylesheet" href="${pageContext.request.contextPath}/css/font.css">
     <link rel="stylesheet" href="${pageContext.request.contextPath}/css/xadmin.css">
     <link rel="stylesheet" href="${pageContext.request.contextPath}/css/bootstrap.css">
-    <script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery-3.1.1.js"></script>
-    <script src="${pageContext.request.contextPath}/lib/layui/layui.js" charset="utf-8"></script>
-    <script type="text/javascript" src="${pageContext.request.contextPath}/js/xadmin.js"></script>
-    <script type="text/javascript" src="${pageContext.request.contextPath}/js/bootstrap.js"></script>
-    <script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery-3.1.1.js"></script>
-    <!--[if lt IE 9]>
-    <script src="https://cdn.staticfile.org/html5shiv/r29/html5.min.js"></script>
-    <script src="https://cdn.staticfile.org/respond.js/1.4.2/respond.min.js"></script>
+
     <![endif]-->
-    <script>
+
+    <script type="text/javascript">
+        // 定义一个函数用于改变每页显示条数
         function changePageSize() {
-            //获取下拉框的值
+            // 获取下拉框的值
             var pageSize = $("#changePageSize").val();
-            //向服务器发送请求，改变每页显示条数
-            location.href = "${pageContext.request.contextPath}/student/findAll?page=1&size="+ pageSize;
+            // 向服务器发送请求，改变每页显示条数
+            location.href = "${pageContext.request.contextPath}/student/findAll?page=1&size=" + pageSize;
         }
+
+        // 绑定搜索按钮点击事件
         $("#serarch_btn").click(function () {
-            var keyword = $("#keyword").val();
-            location.href="${pageContext.request.contextPath}/student/findAll?page=1&size=5&keyword="+keyword;
+            var keyword = $("#keyword").val(); // 获取输入框中的关键字
+            location.href = "${pageContext.request.contextPath}/student/findAll?page=1&size=5&keyword=" + keyword; // 向服务器发送请求，根据关键字搜索
         });
+
+        // 绑定刷新按钮点击事件
         $("#refresh").click(function () {
-            $("#myform").reset();
-            location.href="${pageContext.request.contextPath}/student/findAll?page=1&size=5";
+            $("#myform").reset(); // 重置表单
+            location.href = "${pageContext.request.contextPath}/student/findAll?page=1&size=5"; // 重新加载页面
         });
     </script>
 </head>
 <body>
+<%-- 导航栏部分被注释掉了 --%>
 <%--<div class="x-nav">
           <span class="layui-breadcrumb">
             <a href="">首页</a>
@@ -50,7 +44,7 @@
             <a>
               <cite>导航元素</cite></a>
           </span>
-    <a class="layui-btn layui-btn-small" style="line-height:1.6em;margin-top:3px;float:right" onclick="location.reload()" title="刷新">
+    <a class="layui-btn layui-btn-small" style="line-height:1.6em;margin-top:3px;float:right" "location.reload()" title="刷新">
         <i class="layui-icon layui-icon-refresh" style="line-height:30px"></i></a>
 </div>--%>
 <div class="layui-fluid">
@@ -58,6 +52,7 @@
         <div class="layui-col-md12">
             <div class="layui-card">
                 <div class="layui-card-body ">
+                    <!-- 搜索表单 -->
                     <form id="myform" class="layui-form layui-col-space5">
                         <div class="layui-inline layui-show-xs-block">
                             <input class="layui-input" type="text" autocomplete="off" placeholder="请输入关键字" name="keyword" id="keyword" value="${param.keyword}">
@@ -66,16 +61,20 @@
                             <button class="layui-btn" id="serarch_btn" lay-submit="" lay-filter="sreach"><i class="layui-icon">&#xe615;</i></button>
                         </div>
                         <div class="layui-inline layui-show-xs-block x-right">
-                            <a class="layui-btn layui-btn-normal" href="${pageContext.request.contextPath}/student/findAll?page=1&size=5"><i class="layui-icon">&#xe669;</i></a>
+                            <a class="layui-btn layui-btn-normal" href="${pageContext.request.contextPath}/student/findAll?page=1&size=5"><i class="layui-icon">&#xe669;</i>全部</a>
                         </div>
                     </form>
                 </div>
                 <xblock>
+                    <!-- 添加学生按钮 -->
                     <a href="${pageContext.request.contextPath}/student/addStudent" class="layui-btn layui-btn-normal"><i class="layui-icon">&#xe654;</i>添加</a>
-                    <a onclick="exportInfo()" class="layui-btn layui-btn-warm" href="javascript:;"><i class="layui-icon">&#xe67c;</i>导出</a>
+                    <!-- 导出信息按钮（功能未实现） -->
+                    <a "exportInfo()" class="layui-btn layui-btn-warm" href=";"><i class="layui-icon">&#xe67c;</i>导出</a>
+                    <!-- 显示数据总数 -->
                     <span class="x-right" style="line-height:40px">共有数据：${pageInfo.total} 条</span>
                 </xblock>
                 <div class="layui-card-body">
+                    <!-- 表格展示学生信息 -->
                     <table class="layui-table layui-form">
                         <thead>
                         <tr style="text-align: center">
@@ -94,38 +93,44 @@
                         </thead>
                         <tbody>
                         <%
-                            int j = 1;
+                            int j = 1; // 初始化行号计数器
                         %>
+                        <!-- 遍历学生列表并生成表格行 -->
                         <c:forEach items="${pageInfo.list}" var="student">
                             <tr id="light" style="text-align: center">
-                            <td><%=j++%></td>
-                            <td>${student.name}</td>
-                            <td>${student.sex}</td>
-                            <td>${student.sno}</td>
-                            <td>${student.stu_class}</td>
-                            <td>${student.phone}</td>
-                            <td>${student.dorm_id}</td>
-                            <td>${student.teacher}</td>
+                                <td><%=j++%></td> <!-- 显示行号 -->
+                                <td>${student.name}</td> <!-- 显示学生姓名 -->
+                                <td>${student.sex}</td> <!-- 显示学生性别 -->
+                                <td>${student.sno}</td> <!-- 显示学生学号 -->
+                                <td>${student.stu_class}</td> <!-- 显示学生班级 -->
+                                <td>${student.phone}</td> <!-- 显示学生联系方式 -->
+                                <td>${student.dorm_id}</td> <!-- 显示学生宿舍号 -->
+                                <td>${student.teacher}</td> <!-- 显示学生育人导师 -->
                                 <c:if test="${student.status == 1}">
+                                    <!-- 显示已激活状态 -->
                                     <td><button class="layui-btn layui-btn-normal layui-btn-sm">已激活</button></td>
                                 </c:if>
                                 <c:if test="${student.status == 0}">
+                                    <!-- 显示禁用状态 -->
                                     <td><button class="layui-btn layui-btn-danger layui-btn-sm">禁用</button></td>
                                 </c:if>
                                 <c:if test="${sessionScope.adminInfo.power > 1}">
                                     <td class="td-manage">
+                                        <!-- 编辑按钮 -->
                                         <a title="编辑" href="${pageContext.request.contextPath}/student/editStudent?sno=${student.sno}">
                                             <i class="layui-icon">&#xe642;</i>
                                         </a>
-                                <a title="删除" onclick="member_del(this,${student.sno},${sessionScope.adminInfo.power})" href="javascript:;">
+                                        <!-- 删除按钮（功能未实现） -->
+                                        <a title="删除" href=";" onclick="member_del(this,${student.sno},${sessionScope.adminInfo.power})">
                                             <i class="layui-icon">&#xe640;</i>
                                         </a>
                                     </td>
                                 </c:if>
-                            </c:forEach>
                             </tr>
+                        </c:forEach>
                         </tbody>
                     </table>
+
                 </div>
                 <div class="pull-left">
                     <div class="form-group form-inline">
@@ -139,32 +144,28 @@
                         </select> 条
                     </div>
                 </div>
+
+                // 根据总页数和当前页码，动态设置分页导航的起始和结束页码
                 <c:choose>
                     <c:when test="${pageInfo.pages < 5}">
-                        <c:set var="begin" value="1">
-                        </c:set>
-                        <c:set var="end" value="${pageInfo.pages}">
-                        </c:set>
+                        <c:set var="begin" value="1"/>
+                        <c:set var="end" value="${pageInfo.pages}"/>
                     </c:when>
                     <c:when test="${pageInfo.pageNum <= 3}">
-                        <c:set var="begin" value="1">
-                        </c:set>
-                        <c:set var="end" value="5">
-                        </c:set>
+                        <c:set var="begin" value="1"/>
+                        <c:set var="end" value="5"/>
                     </c:when>
                     <c:when test="${pageInfo.pageNum > 3 and pageInfo.pageNum <= pageInfo.pages-2}">
-                        <c:set var="begin" value="${pageInfo.pageNum - 2}">
-                        </c:set>
-                        <c:set var="end" value="${pageInfo.pageNum + 2}">
-                        </c:set>
+                        <c:set var="begin" value="${pageInfo.pageNum - 2}"/>
+                        <c:set var="end" value="${pageInfo.pageNum + 2}"/>
                     </c:when>
                     <c:otherwise>
-                        <c:set var="begin" value="${pageInfo.pages - 4}">
-                        </c:set>
-                        <c:set var="end" value="${pageInfo.pages}">
-                        </c:set>
+                        <c:set var="begin" value="${pageInfo.pages - 4}"/>
+                        <c:set var="end" value="${pageInfo.pages}"/>
                     </c:otherwise>
                 </c:choose>
+
+                // 分页导航按钮部分
                 <div class="layui-card-body x-right" style="height: min-content">
                     <div class="page">
                         <div>
@@ -183,8 +184,7 @@
                             <c:if test="${pageInfo.pageNum < pageInfo.pages}">
                                 <a class="next" href="${pageContext.request.contextPath}/student/findAll?page=${pageInfo.pageNum+1}&size=${pageInfo.pageSize}&keyword=${param.keyword}">下一页</a>
                             </c:if>
-                            <a class="next" href="${pageContext.request.contextPath}/student/findAll?page=${pageInfo.pages}&size=${pageInfo.pageSize}&keyword=${param.keyword}">尾页</a>
-                        </div>
+                            <a class="next" href="${pageContext.request.contextPath}/student/findAll?page=${pageInfo.pages}&size=${pageInfo.pageSize}&keyword=${param.keyword}">尾页</a></div>
                     </div>
                 </div>
             </div>

src/main/webapp/WEB-INF/jsp/studentsTeacher.jsp

@@ -1,10 +1,3 @@
-<%--
-  Created by IntelliJ IDEA.
-  User: user
-  Date: 2020/2/10
-  Time: 21:45
-  To change this template use File | Settings | File Templates.
---%>
 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"  %>
 <html class="x-admin-sm">
@@ -13,21 +6,16 @@
     <title></title>
     <meta name="renderer" content="webkit">
     <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
+    <!-- 引入外部CSS文件 -->
     <link rel="stylesheet" href="${pageContext.request.contextPath}/css/font.css">
     <link rel="stylesheet" href="${pageContext.request.contextPath}/css/xadmin.css">
     <link rel="stylesheet" href="${pageContext.request.contextPath}/css/bootstrap.css">
-    <script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery-3.1.1.js"></script>
-    <script src="${pageContext.request.contextPath}/lib/layui/layui.js" charset="utf-8"></script>
-    <script type="text/javascript" src="${pageContext.request.contextPath}/js/xadmin.js"></script>
-    <script type="text/javascript" src="${pageContext.request.contextPath}/js/bootstrap.js"></script>
-    <script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery-3.1.1.js"></script>
+
     <!--[if lt IE 9]>
-    <script src="https://cdn.staticfile.org/html5shiv/r29/html5.min.js"></script>
-    <script src="https://cdn.staticfile.org/respond.js/1.4.2/respond.min.js"></script>
     <![endif]-->
-
 </head>
 <body>
+<%-- 注释掉的导航栏代码 --%>
 <%--<div class="x-nav">
           <span class="layui-breadcrumb">
             <a href="">首页</a>
@@ -35,14 +23,16 @@
             <a>
               <cite>导航元素</cite></a>
           </span>
-    <a class="layui-btn layui-btn-small" style="line-height:1.6em;margin-top:3px;float:right" onclick="location.reload()" title="刷新">
+    <a class="layui-btn layui-btn-small" style="line-height:1.6em;margin-top:3px;float:right" "location.reload()" title="刷新">
         <i class="layui-icon layui-icon-refresh" style="line-height:30px"></i></a>
 </div>--%>
+
 <div class="layui-fluid">
     <div class="layui-row layui-col-space15">
         <div class="layui-col-md12">
             <div class="layui-card">
                 <div class="layui-card-body ">
+                    <!-- 注释掉的搜索表单代码 -->
                     <%--<form id="myform" class="layui-form layui-col-space5">
                         <div class="layui-inline layui-show-xs-block">
                             <input class="layui-input" type="text" autocomplete="off" placeholder="请输入关键字" name="keyword" id="keyword" value="${param.keyword}">
@@ -56,10 +46,13 @@
                     </form>--%>
                 </div>
                 <xblock>
+                    <!-- 添加学生按钮 -->
                     <a href="${pageContext.request.contextPath}/student/addStudent" class="layui-btn layui-btn-normal"><i class="layui-icon">&#xe654;</i>添加</a>
+                    <!-- 显示总数据条数 -->
                     <span class="x-right" style="line-height:40px">共有数据：${pageInfo.total} 条</span>
                 </xblock>
                 <div class="layui-card-body">
+                    <!-- 表格展示学生信息 -->
                     <table class="layui-table layui-form">
                         <thead>
                         <tr style="text-align: center">
@@ -73,40 +66,47 @@
                             <th style="text-align: center">育人导师</th>
                             <th style="text-align: center">状态</th>
                             <th style="text-align: center">操作</th>
+                        </tr>
                         </thead>
                         <tbody>
                         <%
-                            int j = 1;
+                            int j = 1; // 初始化行号计数器
                         %>
+                        <!-- 遍历学生列表并生成表格行 -->
                         <c:forEach items="${pageInfo.list}" var="student">
                             <tr id="light" style="text-align: center">
-                            <td><%=j++%></td>
-                            <td>${student.name}</td>
-                            <td>${student.sex}</td>
-                            <td>${student.sno}</td>
-                            <td>${student.stu_class}</td>
-                            <td>${student.phone}</td>
-                            <td>${student.dorm_id}</td>
-                            <td>${student.teacher}</td>
+                                <td><%=j++%></td> <!-- 显示行号 -->
+                                <td>${student.name}</td> <!-- 显示学生姓名 -->
+                                <td>${student.sex}</td> <!-- 显示学生性别 -->
+                                <td>${student.sno}</td> <!-- 显示学生学号 -->
+                                <td>${student.stu_class}</td> <!-- 显示学生班级 -->
+                                <td>${student.phone}</td> <!-- 显示学生联系方式 -->
+                                <td>${student.dorm_id}</td> <!-- 显示学生宿舍号 -->
+                                <td>${student.teacher}</td> <!-- 显示学生育人导师 -->
+                                <!-- 根据学生状态显示不同按钮 -->
                                 <c:if test="${student.status == 1}">
                                     <td><button class="layui-btn layui-btn-normal layui-btn-sm">已激活</button></td>
                                 </c:if>
                                 <c:if test="${student.status == 0}">
                                     <td><button class="layui-btn layui-btn-danger layui-btn-sm">禁用</button></td>
                                 </c:if>
+                                <!-- 编辑按钮 -->
                                 <td class="td-manage">
                                     <a title="编辑" href="${pageContext.request.contextPath}/student/editStudent?sno=${student.sno}">
                                         <i class="layui-icon">&#xe642;</i>
                                     </a>
                                 </td>
+                            </tr>
                         </c:forEach>
                         </tr>
                         </tbody>
                     </table>
                 </div>
                 <div class="pull-left">
+                    <!-- 左侧浮动的分页信息 -->
                     <div class="form-group form-inline">
                         共&nbsp;${pageInfo.pages}&nbsp;页&emsp;当前页：${pageInfo.pageNum}&nbsp;/&nbsp;${pageInfo.pages}&emsp; 每页
+                        <!-- 下拉框用于选择每页显示的条数 -->
                         <select class="form-control" id="changePageSize" onchange="changePageSize()">
                             <option value="1">${pageInfo.size}</option>
                             <option value="5">5</option>
@@ -116,50 +116,57 @@
                         </select> 条
                     </div>
                 </div>
+
                 <c:choose>
+                    <!-- 根据总页数和当前页码设置分页按钮的范围 -->
                     <c:when test="${pageInfo.pages < 5}">
-                        <c:set var="begin" value="1">
-                        </c:set>
-                        <c:set var="end" value="${pageInfo.pages}">
-                        </c:set>
+                        <!-- 如果总页数小于5，则显示所有页码 -->
+                        <c:set var="begin" value="1"></c:set>
+                        <c:set var="end" value="${pageInfo.pages}"></c:set>
                     </c:when>
                     <c:when test="${pageInfo.pageNum <= 3}">
-                        <c:set var="begin" value="1">
-                        </c:set>
-                        <c:set var="end" value="5">
-                        </c:set>
+                        <!-- 如果当前页码小于等于3，则显示前5页 -->
+                        <c:set var="begin" value="1"></c:set>
+                        <c:set var="end" value="5"></c:set>
                     </c:when>
                     <c:when test="${pageInfo.pageNum > 3 and pageInfo.pageNum <= pageInfo.pages-2}">
-                        <c:set var="begin" value="${pageInfo.pageNum - 2}">
-                        </c:set>
-                        <c:set var="end" value="${pageInfo.pageNum + 2}">
-                        </c:set>
+                        <!-- 如果当前页码大于3且小于总页数减2，则显示当前页码前后各两页 -->
+                        <c:set var="begin" value="${pageInfo.pageNum - 2}"></c:set>
+                        <c:set var="end" value="${pageInfo.pageNum + 2}"></c:set>
                     </c:when>
                     <c:otherwise>
-                        <c:set var="begin" value="${pageInfo.pages - 4}">
-                        </c:set>
-                        <c:set var="end" value="${pageInfo.pages}">
-                        </c:set>
+                        <!-- 其他情况，显示最后4页 -->
+                        <c:set var="begin" value="${pageInfo.pages - 4}"></c:set>
+                        <c:set var="end" value="${pageInfo.pages}"></c:set>
                     </c:otherwise>
                 </c:choose>
+
                 <div class="layui-card-body x-right" style="height: min-content">
+                    <!-- 右侧浮动的分页导航 -->
                     <div class="page">
                         <div>
+                            <!-- 首页链接 -->
                             <a class="next" href="${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}&page=1&size=${pageInfo.pageSize}&keyword=${param.keyword}">首页</a>
+                            <!-- 上一页链接，如果当前页码大于1 -->
                             <c:if test="${pageInfo.pageNum > 1}">
                                 <a class="prev" href="${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}&page=${pageInfo.pageNum-1}&size=${pageInfo.pageSize}&keyword=${param.keyword}">上一页</a>
                             </c:if>
+                            <!-- 循环生成页码链接 -->
                             <c:forEach var="i" begin="${begin}" end="${end}" step="1">
+                                <!-- 当前页码高亮显示 -->
                                 <c:if test="${pageInfo.pageNum == i}">
                                     <span class="current">${i}</span>
                                 </c:if>
+                                <!-- 非当前页码的普通链接 -->
                                 <c:if test="${pageInfo.pageNum != i}">
                                     <a class="num" href="${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}&page=${i}&size=${pageInfo.pageSize}&keyword=${param.keyword}">${i}</a>
                                 </c:if>
                             </c:forEach>
+                            <!-- 下一页链接，如果当前页码小于总页数 -->
                             <c:if test="${pageInfo.pageNum < pageInfo.pages}">
                                 <a class="next" href="${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}&page=${pageInfo.pageNum+1}&size=${pageInfo.pageSize}&keyword=${param.keyword}">下一页</a>
                             </c:if>
+                            <!-- 尾页链接 -->
                             <a class="next" href="${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}&page=${pageInfo.pages}&size=${pageInfo.pageSize}&keyword=${param.keyword}">尾页</a>
                         </div>
                     </div>
@@ -168,24 +175,28 @@
         </div>
     </div>
 </div>
-<script>
+
+
+        <script>
             function changePageSize() {
-        //获取下拉框的值
+                // 获取下拉框的值
                 var pageSize = $("#changePageSize").val();
-        //向服务器发送请求，改变每页显示条数
-        location.href = "${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}&page=1&size="+ pageSize;
+                // 向服务器发送请求，改变每页显示条数
+                location.href = "${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}&page=1&size=" + pageSize;
             }
+
             $("#search_btn").click(function () {
-        alert(1234);
+                // 获取搜索关键字
                 var keyword = $("#keyword").val();
-        alert(keyword);
-        alert("${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}&page=1&size=5&keyword="+keyword);
-        location.href="${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}&page=1&size=5&keyword="+keyword;
+                // 向服务器发送请求，进行搜索
+                location.href = "${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}&page=1&size=5&keyword=" + keyword;
             });
+
             $("#refresh").click(function () {
+                // 重置表单并刷新页面
                 $("#myform").reset();
-        location.href="${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}&page=1&size=5";
+                location.href = "${pageContext.request.contextPath}/dorm/findStudent?name=${sessionScope.adminInfo.name}&page=1&size=5";
             });
-</script>
+        </script>
 </body>
 </html>