学生信息管理系统javaweb源代码

学生信息管理系统是一个常见的项目，用于管理学生的基本信息、成绩等。下面是一个简单的学生信息管理系统的JavaWeb源代码示例：

// Student.java
public class Student {
    private String id;
    private String name;
    private int age;
    private String gender;

    // 构造方法
    public Student(String id, String name, int age, String gender) {
        this.id = id;
        this.name = name;
        this.age = age;
        this.gender = gender;
    }

    // getter和setter方法
    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }
}

// StudentDao.java
import java.util.ArrayList;
import java.util.List;

public class StudentDao {
    private List<Student> students;

    public StudentDao() {
        students = new ArrayList<>();
    }

    // 添加学生
    public void addStudent(Student student) {
        students.add(student);
    }

    // 根据学号查找学生
    public Student getStudentById(String id) {
        for (Student student : students) {
            if (student.getId().equals(id)) {
                return student;
            }
        }
        return null;
    }

    // 获取所有学生
    public List<Student> getAllStudents() {
        return students;
    }
}

// StudentServlet.java
import java.io.IOException;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class StudentServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
    private StudentDao studentDao;

    public void init() {
        studentDao = new StudentDao();
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String action = request.getServletPath();

        switch (action) {
            case "/add":
                showAddForm(request, response);
                break;
            case "/insert":
                insertStudent(request, response);
                break;
            default:
                listStudents(request, response);
                break;
        }
    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        doGet(request, response);
    }

    private void showAddForm(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        request.getRequestDispatcher("add-student.jsp").forward(request, response);
    }

    private void insertStudent(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String id = request.getParameter("id");
        String name = request.getParameter("name");
        int age = Integer.parseInt(request.getParameter("age"));
        String gender = request.getParameter("gender");

        Student student = new Student(id, name, age, gender);
        studentDao.addStudent(student);

        response.sendRedirect("list");
    }

    private void listStudents(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        List<Student> students = studentDao.getAllStudents();
        request.setAttribute("students", students);
        request.getRequestDispatcher("list-students.jsp").forward(request, response);
    }
}

以上是一个简单的学生信息管理系统的JavaWeb源代码示例，包括了学生类、数据访问对象类和Servlet类。你可以根据自己的需求进行修改和扩展。