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- package p1;
- import java.io.IOException;
- import java.io.PrintWriter;
- import java.sql.Connection;
- import java.sql.DriverManager;
- import java.sql.PreparedStatement;
- import javax.servlet.ServletException;
- import javax.servlet.http.HttpServlet;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletResponse;
- public class delete extends HttpServlet {
- protected void processRequest(HttpServletRequest request, HttpServletResponse response)
- throws ServletException, IOException {
- response.setContentType("text/html;charset=UTF-8");
- try (PrintWriter out = response.getWriter()) {
-
- String driver="com.mysql.cj.jdbc.Driver";
- String url="jdbc:mysql://localhost:3306/edu?characterEncoding=utf-8"
- + "&serverTimezone=UTC";
- String usr="root";
- String password="1234";
- try{
- Class.forName(driver);
- Connection conn=DriverManager.getConnection(url,usr,password);
- String sqlString="delete from manager1 where count=?";
- PreparedStatement pstmt=conn.prepareStatement(sqlString);
- String count =request.getParameter("count");
- pstmt.setString(1, count);
- pstmt.execute();
- }catch(Exception e){
- System.err.println("error:"+e);
- }
- response.sendRedirect("pages/display.jsp");
- }
- }
- @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);
- }
- @Override
- public String getServletInfo() {
- return "Short description";
- }
- }
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