diff --git a/src/main/java/cn/ppdxzz/controller/StudentController.java b/src/main/java/cn/ppdxzz/controller/StudentController.java
index b8a0bda..fe8d1e9 100644
--- a/src/main/java/cn/ppdxzz/controller/StudentController.java
+++ b/src/main/java/cn/ppdxzz/controller/StudentController.java
@@ -22,15 +22,14 @@ import java.util.List;
 
 /**
  * Description:
- *
- * @Date: 2020/2/17 14:17
- * @Author: PeiChen
+
  */
 @Controller
 @RequestMapping("/student")
 public class StudentController {
 
     private StudentService studentService;
+
     @Autowired
     public void setStudentService(StudentService studentService) {
         this.studentService = studentService;
@@ -38,6 +37,7 @@ public class StudentController {
 
     /**
      * 查询所有学生信息
+     *
      * @param page
      * @param size
      * @param request
@@ -46,160 +46,170 @@ public class StudentController {
      * @throws Exception
      */
     @RequestMapping("/findAll")
-    public ModelAndView findAll(@RequestParam(name = "page", required = true, defaultValue = "1") int page, @RequestParam(name = "size", required = true, defaultValue = "5") int size, HttpServletRequest request, HttpServletResponse response) throws Exception {
-        request.setCharacterEncoding("utf-8");
-        response.setCharacterEncoding("utf-8");
-        ModelAndView mv = new ModelAndView();
-        List<Student> list = null;
-        String keyword = request.getParameter("keyword");
-        if (keyword == null || keyword.trim().equals("") || keyword.length() == 0) {
-            list = studentService.findAll(page, size);
-        }else {
-            list = studentService.search(page,size,keyword);
-        }
-        //PageInfo就是一个封装了分页数据的bean
-        PageInfo pageInfo = new PageInfo(list);
-        mv.addObject("pageInfo",pageInfo);
-        mv.setViewName("student-list");
+    public class StudentController {
 
-        return mv;
-    }
+        private StudentService studentService;
 
-    /**
-     * 根据学号删除学生
-     * @param request
-     * @param response
-     * @throws Exception
-     */
-    @RequestMapping("/delete")
-    public void delete(HttpServletRequest request,HttpServletResponse response) throws Exception {
-        response.setCharacterEncoding("utf-8");
-        PrintWriter writer = response.getWriter();
-        String sno = request.getParameter("sno");
-        if (sno == null || "".equals(sno) || sno.length() == 0) {
-            writer.write("false");
-            return;
+        @Autowired
+        public void setStudentService(StudentService studentService) {
+            this.studentService = studentService;
         }
-        studentService.delete(sno);
-        writer.write("true");
 
-    }
+        /**
+         * 查询所有学生信息
+         *
+         * @param page     当前页码
+         * @param size     每页显示的记录数
+         * @param request  HTTP请求对象
+         * @param response HTTP响应对象
+         * @return ModelAndView 包含分页数据和视图名称
+         * @throws Exception 抛出异常
+         */
+        @RequestMapping("/findAll")
+        public ModelAndView findAll(@RequestParam(name = "page", required = true, defaultValue = "1") int page, @RequestParam(name = "size", required = true, defaultValue = "5") int size, HttpServletRequest request, HttpServletResponse response) throws Exception {
+            request.setCharacterEncoding("utf-8");
+            response.setCharacterEncoding("utf-8");
+            ModelAndView mv = new ModelAndView();
+            List<Student> list = null;
+            String keyword = request.getParameter("keyword");
+            if (keyword == null || keyword.trim().equals("") || keyword.length() == 0) {
+                list = studentService.findAll(page, size);
+            } else {
+                list = studentService.search(page, size, keyword);
+            }
+            PageInfo pageInfo = new PageInfo(list);
+            mv.addObject("pageInfo", pageInfo);
+            mv.setViewName("student-list");
+            return mv;
+        }
 
-    /**
-     * 判断指定学号是否存在
-     * @param request
-     * @param response
-     * @throws Exception
-     */
-    @RequestMapping("/isExist")
-    public void isSnoExist(HttpServletRequest request,HttpServletResponse response) throws Exception {
-        request.setCharacterEncoding("utf-8");
-        response.setCharacterEncoding("utf-8");
-        PrintWriter writer = response.getWriter();
-        String sno = request.getParameter("sno");
-        Student isExist = studentService.findBySno(sno);
-        if (isExist == null) {
-            return;
+        /**
+         * 根据学号删除学生
+         *
+         * @param request  HTTP请求对象
+         * @param response HTTP响应对象
+         * @throws Exception 抛出异常
+         */
+        @RequestMapping("/delete")
+        public void delete(HttpServletRequest request, HttpServletResponse response) throws Exception {
+            response.setCharacterEncoding("utf-8");
+            PrintWriter writer = response.getWriter();
+            String sno = request.getParameter("sno");
+            if (sno == null || "".equals(sno) || sno.length() == 0) {
+                writer.write("false");
+                return;
+            }
+            studentService.delete(sno);
+            writer.write("true");
         }
-        //如果isExist不为空说明学号已被注册
-        writer.write("true");
 
-    }
+        /**
+         * 判断指定学号是否存在
+         *
+         * @param request  HTTP请求对象
+         * @param response HTTP响应对象
+         * @throws Exception 抛出异常
+         */
+        @RequestMapping("/isExist")
+        public void isSnoExist(HttpServletRequest request, HttpServletResponse response) throws Exception {
+            request.setCharacterEncoding("utf-8");
+            response.setCharacterEncoding("utf-8");
+            PrintWriter writer = response.getWriter();
+            String sno = request.getParameter("sno");
+            Student isExist = studentService.findBySno(sno);
+            if (isExist == null) {
+                return;
+            }
+            writer.write("true");
+        }
 
-    @RequestMapping("/addStudent")
-    public ModelAndView addStudent(HttpServletRequest request) throws Exception {
-        request.setCharacterEncoding("utf-8");
-        ModelAndView mv = new ModelAndView();
-        String dorm_id = request.getParameter("dorm_id");
-        if (dorm_id != null) {
-            mv.addObject("dorm_id",dorm_id);
-            mv.setViewName("dormStudent-add");
+        @RequestMapping("/addStudent")
+        public ModelAndView addStudent(HttpServletRequest request) throws Exception {
+            request.setCharacterEncoding("utf-8");
+            ModelAndView mv = new ModelAndView();
+            String dorm_id = request.getParameter("dorm_id");
+            if (dorm_id != null) {
+                mv.addObject("dorm_id", dorm_id);
+                mv.setViewName("dormStudent-add");
+                return mv;
+            }
+            mv.setViewName("student-add");
             return mv;
         }
-        mv.setViewName("student-add");
-        return mv;
-    }
 
-    /**
-     * 添加学生信息
-     * @param student
-     * @param response
-     * @throws Exception
-     */
-    @RequestMapping("/add")
-    public void add(Student student,HttpServletResponse response) throws Exception {
-        PrintWriter writer = response.getWriter();
-        if (student == null || studentService.findBySno(student.getSno()) != null) {
-            writer.write("false");
-            return;
+        /**
+         * 添加学生信息
+         *
+         * @param student  学生对象
+         * @param response HTTP响应对象
+         * @throws Exception 抛出异常
+         */
+        @RequestMapping("/add")
+        public void add(Student student, HttpServletResponse response) throws Exception {
+            PrintWriter writer = response.getWriter();
+            if (student == null || studentService.findBySno(student.getSno()) != null) {
+                writer.write("false");
+                return;
+            }
+            Student s = studentService.findBySno(student.getSno());
+            if (s != null) {
+                writer.write("false");
+                return;
+            }
+            boolean isAdd = studentService.add(student);
+            if (isAdd) {
+                writer.write("true");
+            } else {
+                writer.write("false");
+            }
         }
 
-        Student s = studentService.findBySno(student.getSno());
-        if (s != null) {
-            writer.write("false");
-            return;
+        @RequestMapping("/editStudent")
+        public ModelAndView editStudent(HttpServletRequest request) throws Exception {
+            ModelAndView mv = new ModelAndView();
+            request.setCharacterEncoding("utf-8");
+            String sno = request.getParameter("sno");
+            Student stu = studentService.findBySno(sno);
+            mv.addObject("stu", stu);
+            mv.setViewName("student-edit");
+            return mv;
         }
-        boolean isAdd = studentService.add(student);
-        if (isAdd) {
+
+        /**
+         * 修改学生信息
+         *
+         * @param student  学生对象
+         * @param response HTTP响应对象
+         * @throws Exception 抛出异常
+         */
+        @RequestMapping("/update")
+        public void update(Student student, HttpServletResponse response) throws Exception {
+            response.setCharacterEncoding("utf-8");
+            PrintWriter writer = response.getWriter();
+            if (student == null || student.getId() == null) {
+                return;
+            }
+            if (student.getName() == null || "".equals(student.getName()) || student.getName().length() == 0 || student.getSex() == null || student.getSex().length() == 0 || "".equals(student.getSex()) || student.getSno() == null || "".equals(student.getSno()) || student.getSno().length() == 0 || student.getPhone() == null || "".equals(student.getPhone()) || student.getPhone().length() == 0 || student.getStu_class() == null || "".equals(student.getStu_class()) || student.getStu_class().length() == 0 || student.getPlace() == null || "".equals(student.getPlace()) || student.getPlace().length() == 0 || student.getDorm_id() == null || "".equals(student.getDorm_id()) || student.getDorm_id().length() == 0 || student.getTeacher() == null || "".equals(student.getTeacher()) || student.getTeacher().length() == 0) {
+                return;
+            }
+            studentService.update(student);
             writer.write("true");
-        }else {
-            writer.write("false");
         }
 
-    }
-
-    @RequestMapping("/editStudent")
-    public ModelAndView editStudent(HttpServletRequest request) throws Exception {
-        ModelAndView mv = new ModelAndView();
-        request.setCharacterEncoding("utf-8");
-        String sno = request.getParameter("sno");
-        Student stu = studentService.findBySno(sno);
-        mv.addObject("stu",stu);
-        mv.setViewName("student-edit");
-        return mv;
-    }
-    /**
-     * 修改学生信息
-     * @param student
-     * @param response
-     * @throws Exception
-     */
-    @RequestMapping("/update")
-    public void update(Student student,HttpServletResponse response) throws Exception {
-        response.setCharacterEncoding("utf-8");
-        PrintWriter writer = response.getWriter();
-        if (student == null || student.getId() == null) {
-            return;
-        }
-        if (student.getName() == null || "".equals(student.getName()) || student.getName().length() == 0
-            || student.getSex() == null || student.getSex().length() == 0 || "".equals(student.getSex())
-            || student.getSno() == null || "".equals(student.getSno()) || student.getSno().length() == 0
-            || student.getPhone() == null || "".equals(student.getPhone()) || student.getPhone().length() == 0
-            || student.getStu_class() == null || "".equals(student.getStu_class()) || student.getStu_class().length() == 0
-            || student.getPlace() == null || "".equals(student.getPlace()) || student.getPlace().length() == 0
-            || student.getDorm_id() == null || "".equals(student.getDorm_id()) || student.getDorm_id().length() == 0
-            || student.getTeacher() == null || "".equals(student.getTeacher()) || student.getTeacher().length() == 0 ) {
-            return;
+        /**
+         * 导出学生数据为Excel
+         *
+         * @param response HTTP响应对象
+         * @throws Exception 抛出异常
+         */
+        @RequestMapping("/export")
+        public void export(HttpServletResponse response) throws Exception {
+            InputStream is = studentService.getInputStream();
+            response.setContentType("application/vnd.ms-excel");
+            response.setHeader("contentDisposition", "attachment;filename=studentsInfo.xls");
+            ServletOutputStream outputStream = response.getOutputStream();
+            IOUtils.copy(is, outputStream);
         }
-        studentService.update(student);
-        writer.write("true");
 
     }
-
-    /**
-     * 导出学生数据为Excel
-     * @param response
-     * @throws Exception
-     */
-    @RequestMapping("/export")
-    public void export(HttpServletResponse response) throws Exception {
-        InputStream is = studentService.getInputStream();
-        response.setContentType("application/vnd.ms-excel");
-        response.setHeader("contentDisposition", "attachment;filename=studentsInfo.xls");
-        ServletOutputStream outputStream = response.getOutputStream();
-        IOUtils.copy(is,outputStream);
-    }
-
-
-
 }