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- import java.io.IOException;
- import java.io.PrintWriter;
- import java.sql.Connection;
- import java.sql.DriverManager;
- import java.sql.PreparedStatement;
- import java.sql.ResultSet;
- import java.sql.SQLException;
- import java.sql.Statement;
- import javax.servlet.ServletException;
- import javax.servlet.http.HttpServlet;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletResponse;
- public class MyServlet extends HttpServlet {
- protected void processRequest(HttpServletRequest request, HttpServletResponse response)
- throws ServletException, IOException {
- response.setContentType("text/html;charset=UTF-8");
- try (PrintWriter out = response.getWriter()) {
- /* TODO output your page here. You may use following sample code. */
- out.println("<!DOCTYPE html>");
- out.println("<html>");
- out.println("<head>");
- out.println("<title>Добавлен</title>");
- out.println("</head>");
- out.println("<body>");
- out.println("<h1> Добавлнен в класс из " + request.getContextPath() + "</h1>");
- out.println("</body>");
- out.println("</html>");
- }
- }
- @Override
- protected void doGet(HttpServletRequest request, HttpServletResponse response)
- throws ServletException, IOException {
- processRequest(request, response);
- }
- @Override
- protected void doPost(HttpServletRequest request, HttpServletResponse response)
- throws ServletException, IOException {
- //processRequest(request, response);
- PrintWriter out = response.getWriter();
- String name1 = request.getParameter("name");
- String surname1 = request.getParameter("surname");
- String action = request.getParameter("actionname");
- if(action.equals("addstudent")){
- String name = request.getParameter("name");
- String surname = request.getParameter("surname");
- try{
- insertstudent(name, surname);
- }catch(SQLException ex){
- }
- }
- if(action.equals("RemoveStudent")){
- int id = request.getParameter("id");
- try{
- delete(id);
- }catch(SQLException ex){
- }
- }
- }
- public String insertstudent(String name, String surname) throws SQLException {
- String sql = "INSERT INTO student (name, surname) VALUES(?,?);";
- Connection con = null;
- PreparedStatement prep = null;
- try {
- Class.forName("com.mysql.jdbc.Driver");
- con = DriverManager.getConnection("jdbc:mysql://localhost:3306/school_db_newnew?useTimezone=true&serverTimezone=GMT", "root", "123456");
- prep = con.prepareStatement(sql);
- prep.setString(1, name);
- prep.setString(2, surname);
- prep.executeUpdate();
- prep.close();
- } catch (ClassNotFoundException e) {
- e.printStackTrace();
- }
- return "successfully added";
- }
- public String delete(Integer id) throws SQLException {
- String sql = "DELETE FROM student WHERE id = '?';";
- Connection con = null;
- PreparedStatement prep = null;
- try {
- Class.forName("com.mysql.jdbc."
- + "Driver");
- con = DriverManager.getConnection("jdbc:mysql://localhost:3306/school_db_newnew?useTimezone=true&serverTimezone=GMT", "root", "123456");
- prep.setInt(1, id);
- prep.executeUpdate();
- prep.close();
- prep = con.prepareStatement(sql);
- } catch (ClassNotFoundException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- return "successfully delete";
- }
- }
- <%@page import="java.sql.*"%>
- <% Class.forName("com.mysql.jdbc.Driver"); %>
- <%@page contentType="text/html" pageEncoding="UTF-8"%>
- <!DOCTYPE html>
- <head>
- <meta charset="utf-8">
- <title>fSchool</title>
- <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
- <link rel="stylesheet" href="css/RemoveStudent.css">
- <link href="font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css">
- <link rel="stylesheet" href="css/menu.css">
- <script src="js/jquery1111.min.js" type="text/javascript"></script>
- <script src="js/script.js"></script>
- </head>
- <body class="home-page">
- <div class="wrap-body">
- <header>
- <div id="cssmenu" >
- <ul>
- <li class="active"><a href="index.html"><span>FSchool</span></a></li>
- <li class="has-sub"><a href="#"><span>Students</span></a>
- <ul>
- <li class="has-sub"><a href="#"><span>Show All Students</span></a>
- <ul>
- <li><a href="#"><span>Add</span></a></li>
- <li class="last"><a href="#"><span>Remove</span></a></li>
- </ul>
- </li>
- </ul>
- </li>
- <li><a href="archive.html"><span>Media</span></a></li>
- <li><a href="single.html"><span>Skills</span></a></li>
- <li class="last"><a href="contact.html"><span>About</span></a></li>
- </ul>
- </div>
- </div>
- </table
- <div class="RemoveStudent">
- <h1>Remove Student</h1>
- <form action="MyServlet" method="Post">
- id : <input type="number" id="id"><br><br>
- <input type="hidden" value="RemoveStudent" name="actionname">
- <input type="submit" value="Send"><br>
- </form>
- </div>
- </body>
- </html>
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