Jsp Servlet Sales Project Step by Step

This tutorial will teach you Jsp Servlet Sales Project Step by Step.This project will help you to manage the sales of the shop.

Form Design

index.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
        <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
        <script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
        <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
          <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
    </head>
    <body>
        <div class="container">
            <div class="row">
                <form method="get" action="servlet">
                <div class="col-sm-04">
                    <label>Do you Want to Drink</label>
                    <select class="form-control" id="drink" name="drink">
                        <option value="">Please Select Drink</option>
                         <option value="pepsi">Pepsi</option>
                         <option value="cock">Cock</option>
                    </select>
                </div>
                <div class="col-sm-04">
                    <label>Qty</label>
                    <input type="text" name="qty" id="qty" class="form-conrol">
                </div>
                <div class="col-sm-04">
                    <input type="submit" value="Submit" class="btn btn-success">
                </div>
                </form>
            </div>
        </div>
    </body>
</html>

servlet.java

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

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

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException
    {
      
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        
        String item = request.getParameter("drink");
        String qty = request.getParameter("qty");
        
        
        int qtty=0;
        int price = 0;
        float discount= 0.0f;
        
        
        if(item.equals("pepsi"))
        {
            price =25;
            discount = 10;
            qtty = Integer.parseInt(qty);
            float amount = qtty * price;
            float disamount = amount * discount/100.0f;
            float bill = amount - disamount;
            
            out.println("<form method='get' action='servlet'>");
            out.println("<table border=2 cellpadding=0 cellspacing=0>");
          
            out.println("<tr>");
             out.println("<td colspan=2>Order Details</td>");
            out.println("</tr>");
            
            out.println("<tr><td>Drink</td> <td> " +  item    +  "</td></tr>");
            out.println("<tr><td>Price</td> <td> " +  price    +  "</td></tr>");
            out.println("<tr><td>Amount</td> <td> " +  amount    +  "</td></tr>");
            out.println("<tr><td>DiscountAmount</td> <td> " +  disamount    +  "</td></tr>");
             out.println("<tr><td>Bill</td> <td> " +  bill    +  "</td></tr>");    
            out.println("</table>");
            out.println("</form>");
            
        }
        else if(item.equals("cock"))
        {
            price =30;
            discount = 5;
            qtty = Integer.parseInt(qty);
            float amount = qtty * price;
            float disamount = amount * discount/100.0f;
            float bill = amount - disamount;
            
            out.println("<form method='get' action='servlet'>");
            out.println("<table border=2 cellpadding=0 cellspacing=0>");
          
            out.println("<tr>");
             out.println("<td colspan=2>Order Details</td>");
            out.println("</tr>");
            
            out.println("<tr><td>Drink</td> <td> " +  item    +  "</td></tr>");
            out.println("<tr><td>Price</td> <td> " +  price    +  "</td></tr>");
            out.println("<tr><td>Amount</td> <td> " +  amount    +  "</td></tr>");
            out.println("<tr><td>DiscountAmount</td> <td> " +  disamount    +  "</td></tr>");
             out.println("<tr><td>Bill</td> <td> " +  bill    +  "</td></tr>");    
            out.println("</table>");
            out.println("</form>");        
        }
    } 
}

i have attached the video link below. which will do this tutorials step by step.

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