index.html
<html><head><title>Demonstration of Get and Post Method</title></head>
<body bgcolor="pink">
<center>
<form action="Prog3" method="post">
<a href="Prog3"><b>Click here to call get method</b></a><br><br>
<p><b>Press submit button to call Post method</b></p><br><B>color:</B>
<select name="color" size="1">
<option value="red">red</option>
<option value="green">green</option>
<option value="blue">blue</option>
</select><br><br>
<input type=submit value="submit">
</form>
</body>
</html>
Prog3.java (Servlet File)
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class Prog3 extends HttpServlet
{
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException,IOException
{
String color=request.getParameter("color");
response.setContentType("text/html");
try (PrintWriter out = response.getWriter()) {
out.println("<!DOCTYPE html>");
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet Prog3</title>");
out.println("</head>");
out.println("<body bgcolor="+color+">");
out.println("<b>Hello from Post method</b><br><br>");
out.println("You have selected" + " " + color + " " + "color");
out.println("</body></html>");
}
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException,IOException
{
response.setContentType("text/html");
try (PrintWriter out = response.getWriter())
{
out.println("<b>Hello from Get method</b>");
out.println("<h1>Welcome to AIT</h1>");
}
}
<html><head><title>Demonstration of Get and Post Method</title></head>
<body bgcolor="pink">
<center>
<form action="Prog3" method="post">
<a href="Prog3"><b>Click here to call get method</b></a><br><br>
<p><b>Press submit button to call Post method</b></p><br><B>color:</B>
<select name="color" size="1">
<option value="red">red</option>
<option value="green">green</option>
<option value="blue">blue</option>
</select><br><br>
<input type=submit value="submit">
</form>
</body>
</html>
Prog3.java (Servlet File)
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class Prog3 extends HttpServlet
{
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException,IOException
{
String color=request.getParameter("color");
response.setContentType("text/html");
try (PrintWriter out = response.getWriter()) {
out.println("<!DOCTYPE html>");
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet Prog3</title>");
out.println("</head>");
out.println("<body bgcolor="+color+">");
out.println("<b>Hello from Post method</b><br><br>");
out.println("You have selected" + " " + color + " " + "color");
out.println("</body></html>");
}
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException,IOException
{
response.setContentType("text/html");
try (PrintWriter out = response.getWriter())
{
out.println("<b>Hello from Get method</b>");
out.println("<h1>Welcome to AIT</h1>");
}
}
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