学生成绩管理系统javaweb代码
时间: 2023-09-10 15:13:40 浏览: 46
由于学生成绩管理系统涉及到多个模块和功能,这里无法提供完整的Java web代码。但是,下面提供一个简单的学生成绩管理系统的代码示例,具体实现如下:
1. 登录模块:
实现用户登录和注册功能,对用户进行身份验证。
登录页面代码:
```
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>学生成绩管理系统</title>
</head>
<body>
<form action="loginServlet" method="post">
<label for="username">用户名:</label>
<input type="text" id="username" name="username"><br>
<label for="password">密码:</label>
<input type="password" id="password" name="password"><br>
<input type="submit" value="登录">
</form>
<a href="register.jsp">注册</a>
</body>
</html>
```
登录Servlet代码:
```
package com.example.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class LoginServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String username = request.getParameter("username");
String password = request.getParameter("password");
if(username.equals("admin") && password.equals("admin")) {
HttpSession session = request.getSession();
session.setAttribute("username", username);
response.sendRedirect("home.jsp");
}else {
response.sendRedirect("login.jsp");
}
}
}
```
2. 学生信息管理模块:
包括学生信息的增删改查等操作。
学生信息页面代码:
```
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>学生信息管理</title>
</head>
<body>
<h3>学生信息管理</h3>
<table border="1">
<tr>
<th>学生ID</th>
<th>姓名</th>
<th>性别</th>
<th>年龄</th>
<th>操作</th>
</tr>
<c:forEach var="student" items="${students}">
<tr>
<td>${student.id}</td>
<td>${student.name}</td>
<td>${student.gender}</td>
<td>${student.age}</td>
<td>
<a href="editStudent.jsp?id=${student.id}">编辑</a>
<a href="deleteStudent?id=${student.id}">删除</a>
</td>
</tr>
</c:forEach>
</table>
<a href="addStudent.jsp">添加学生</a>
</body>
</html>
```
学生信息Servlet代码:
```
package com.example.servlet;
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;
import com.example.dao.StudentDao;
import com.example.model.Student;
public class StudentServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String action = request.getParameter("action");
if(action.equals("list")) {
listStudents(request, response);
}else if(action.equals("delete")) {
deleteStudent(request, response);
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String action = request.getParameter("action");
if(action.equals("add")) {
addStudent(request, response);
}else if(action.equals("update")) {
updateStudent(request, response);
}
}
private void listStudents(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
StudentDao studentDao = new StudentDao();
List<Student> students = studentDao.getAllStudents();
request.setAttribute("students", students);
request.getRequestDispatcher("student.jsp").forward(request, response);
}
private void deleteStudent(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
int id = Integer.parseInt(request.getParameter("id"));
StudentDao studentDao = new StudentDao();
studentDao.deleteStudent(id);
response.sendRedirect("student?action=list");
}
private void addStudent(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String name = request.getParameter("name");
String gender = request.getParameter("gender");
int age = Integer.parseInt(request.getParameter("age"));
Student student = new Student(name, gender, age);
StudentDao studentDao = new StudentDao();
studentDao.addStudent(student);
response.sendRedirect("student?action=list");
}
private void updateStudent(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
int id = Integer.parseInt(request.getParameter("id"));
String name = request.getParameter("name");
String gender = request.getParameter("gender");
int age = Integer.parseInt(request.getParameter("age"));
Student student = new Student(id, name, gender, age);
StudentDao studentDao = new StudentDao();
studentDao.updateStudent(student);
response.sendRedirect("student?action=list");
}
}
```
以上仅是学生成绩管理系统的部分代码示例,实际开发中需要根据需求进行具体实现。