基于jsp+servlet的idea版学生管理系统,前端框架layui的代码详情-代码-最代码

首页>代码>基于jsp+servlet的idea版学生管理系统,前端框架layui>/studentManage/源码/studentManage/src/main/java/controller/StudentInfoServlet.java
01package controller;
02 
03import domain.Student;
04import service.StudentService;
05import service.impl.StudentServiceImpl;
06import utils.MyBeanUtils;
07 
08import javax.servlet.annotation.WebServlet;
09import javax.servlet.http.HttpServletRequest;
10import javax.servlet.http.HttpServletResponse;
11import java.util.List;
12import java.util.Map;
13 
14@WebServlet(name = "studentInfoServlet", urlPatterns = {"/student"})
15public class StudentInfoServlet extends BaseServlet {
16 
17    private StudentService studentService = new StudentServiceImpl();
18 
19    public void home(HttpServletRequest request, HttpServletResponse response) throws Exception {
20        List<Student> studentList = studentService.queryAllStudent();
21        System.out.println(studentList);
22        if (studentList != null) {
23            request.setAttribute("studentList", studentList);
24        } else {
25            request.setAttribute("msg", "无数据");
26        }
27        request.getRequestDispatcher("/pages/studentInfo/allInfo.jsp").forward(request, response);
28 
29    }
30 
31    public void insertInfo(HttpServletRequest request, HttpServletResponse response) throws Exception {
32        Student student = new Student();
33        Map<String, String[]> map = request.getParameterMap();
34        try {
35            MyBeanUtils.populate(student, map);
36        } catch (Exception e) {
37            e.printStackTrace();
38        }
39        int row = studentService.insertStudentInfo(student);
40        if (row == 1) {
41            request.setAttribute("stuMsg","添加成功");
42        } else {
43            request.setAttribute("stuMsg","添加失败,id可能重复");
44        }
45        request.getRequestDispatcher("/pages/studentInfo/insertInfo.jsp").forward(request, response);
46    }
47 
48    public void delInfo(HttpServletRequest request, HttpServletResponse response) throws Exception {
49        String id=request.getParameter("id");
50        int row = studentService.delStudentInfo(id);
51        if (row == 1) {
52            request.setAttribute("stuMsg","删除成功");
53        } else {
54            request.setAttribute("stuMsg","删除失败,可能无id");
55        }
56        request.getRequestDispatcher("/pages/studentInfo/delInfo.jsp").forward(request, response);
57    }
58 
59    public void findStudentInfoById(HttpServletRequest request, HttpServletResponse response) throws Exception {
60        String id=request.getParameter("id");
61        Student student = studentService.findStudentInfoById(id);
62        if (student!=null) {
63            request.setAttribute("student",student);
64        } else {
65            request.setAttribute("stuMsgError","查询失败,可能无id");
66        }
67        request.getRequestDispatcher("/pages/studentInfo/updateInfo.jsp").forward(request, response);
68    }
69 
70 
71 
72    public void updateStudentInfo(HttpServletRequest request, HttpServletResponse response) throws Exception {
73        Student student = new Student();
74        Map<String, String[]> map = request.getParameterMap();
75        try {
76            MyBeanUtils.populate(student, map);
77        } catch (Exception e) {
78            e.printStackTrace();
79        }
80        System.out.println(student);
81        int row = studentService.updateStudentInfo(student);
82        if (row == 1) {
83            request.setAttribute("stuMsg","修改成功");
84        } else {
85            request.setAttribute("stuMsg","修改失败,可能修改后的id重复或者不存在");
86        }
87        request.getRequestDispatcher("/pages/studentInfo/updateInfo.jsp").forward(request, response);
88    }
89}