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[![enter image description here][1]][1]Hi everyone I am making a web application in Java using servlets. For this I am using eclipse neon.3 , Apache tomcat 9.0.0 , mysql and java jdk 8 I have made a dynamic web application in eclipse and I used database connection

//Servlet login.java 
package login;
import java.sql.*;

import java.io.IOException;

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

 import java.sql.SQLException;


import javax.servlet.http.HttpSession;
import java.io.PrintWriter;  
 
import javax.servlet.RequestDispatcher;  
 

import login.logindb;

@WebServlet("/login")
public class login extends HttpServlet {
   

   protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
                   String username= request.getParameter("username");
                  String password=request.getParameter("password");
                  
                   
               
                   boolean ISFiled = false;
                   try 
                   {   
                       ISFiled = logindb.check(username, password); // need to add message here for successful/unsuccesful operation
                   } 
                   catch (SQLException e) 
                   {
                           e.printStackTrace();
                   } catch (Exception e) {
                       // TODO Auto-generated catch block
                       e.printStackTrace();
                   }
                   
                   if(ISFiled == true)
                   {
                         response.sendRedirect("success.jsp");
                   }
                   else {
                       
                       response.sendRedirect("welcom.jsp");}
               }   
       
   }

Signup.jsp

<!doctype html>
<html lang="en">
  <head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <!-- Bootstrap CSS -->
    
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
    <title>Sign Up</title>
    <style>
    
      .col-md-6{
          width: 1200;
         
        justify-content: left;
        align-items: left;  
   
      }
    
    </style>
  </head>
  <body>
  <div class="container col-md-9 col-md-offset-5" style="overflow: auto">
<form action="SignupServlet1" method="post">
    <section class="section mt-5">
      <div class="container">
        <div class="row">
          <div class="col-md-5">
            <div>
              <img alt="Web Studio" class="img-fluid" src="https://media.istockphoto.com/id/1354441996/photo/image-of-open-antique-book-on-wooden-table-with-glitter-overlay.jpg?b=1&s=170667a&w=0&k=20&c=O_VZbgONe4WTXPOEvwKYezhqFkzAXpr2g-lCdpdj5FU="
               />
            </div>
          </div>
          <div class="col-md-6 col-lg-5 ml-auto d-flex align-items-center mt-15 mt-md-4">
            <div>
                    <h1>Sign Up  </h1>
            
<div class="form-group">
             

            <button type="submit" class="btn btn-primary">SignUp</button>
    </div>            </div>
          </div>
        </div>
      
    </section>
      
     <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>
</form>
</div>
  </body>
</html

SignupServlet


package login;

 

import java.io.IOException;

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

  import java.sql.SQLException;


import javax.servlet.http.HttpSession;

import login.UserRegister;

import java.io.PrintWriter;  
  
import javax.servlet.RequestDispatcher;  
 


@WebServlet(name="abc",urlPatterns={"/SignupServlet"})
public class SignupServlet extends HttpServlet {
     
    /**
     * 
     */
    private static final long serialVersionUID = 1L;



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

     

    private void register(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
         
            
            response.sendRedirect("login.jsp");}


       

    }
}

now when i add the jsp pages it works the login servlet is also working but when i added the sigup servlet it shows 404 error. I searched a lot but I can't get what's wrong here I checked for annotations I couldn't find anything wrong then I checked for web.xml file it showed a table like format so I opened it with DTD editor so I was able to write into the file

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee"
 xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1">
  <servlet>
    <servlet-name>abc</servlet-name>
    <servlet-class>login.SignupServlet1</servlet-class>
  </servlet>
  
  <servlet-mapping>
    <servlet-name>abc</servlet-name>
    <url-pattern>/SignupServlet1</url-pattern>
  </servlet-mapping>
</web-app>

if i add login servlet class name and mapping it stops working now I don't know how to fix this pleaseee help!!

nitrations
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0 Answers0