Hi Friends
Hi friends,
I am new to this servlet environment. i am facing this problem, when i am running the below code.
means, when i submit username and password in the text box it is ok.
but when i should not enter any values in username and password,
i am getting the output.not the form.html page
form.html
-
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>form.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
<!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
</head>
<body>
<center>
<form name="myform" method="get" action="first">
<table>
<tr>
<td>Username:</td>
<td><input type="text" name="username" size="35"></td>
</tr>
<tr>
<td>Password
</td>
<td><input type="password" name="password" size="35"></td></tr>
</table>
<input type="submit" name="submit" value="send">
</form>
</center>
</body>
</html>
Example1.java
package abcd;
import java.io.IOException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class Example1 extends HttpServlet {
public void doGet(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException
{
doPost(request,response);
}
public void doPost(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException
{
//retriving client sent parameters
String username=request.getParameter("username");
String password=request.getParameter("password");
if(username!=null&& password!=null)
{
response.sendRedirect("form.html");
return;
}
else
{
request.setAttribute("username", username);
ServletContext context=getServletContext();
RequestDispatcher rd=context.getRequestDispatcher("/second");
rd.forward(request, response);
return;
}
}
}
Example2.java
package abcd;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class Example2 extends HttpServlet {
public void doGet(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException
{
doPost(request,response);
}
public void doPost(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException
{response.setContentType("text/html");
PrintWriter out=response.getWriter();
String username=(String)request.getAttribute("username");
if (username!=null)
{
out.println("usernameis"+username);
return;
}
else
{
response.sendRedirect("form.html");
}
}
}
hi friends ,
advance thanks for ur reply
