Hi all,
I have been trying to find this out for 4 days straight, doing all types of research and yet I cannot find it, although it seems like one of the most fundamental things I can think of. I am new to jsps and servlets but not new to java, so please be patient with me :)
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SCENARIO:
1) I have an index.jsp page with a form with 1 field for the user to fill up.
2) I have a bean which I am trying to fill up from the index page itself.
3) I have a servlet that handles the request
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INDEX PAGE:
<%@ page import="com.java2s.*"%>
<html>
<body>
<jsp:useBean id="bean" class="com.java2s.bean" scope="session"/>
<jsp:setProperty name="bean" property="*"/>
<FORM METHOD=POST ACTION="MyServlet">
What's your name? <INPUT TYPE=TEXT NAME=username SIZE=20><BR>
<P><INPUT TYPE=SUBMIT>
</FORM>
</body>
</html>_____________________________________________________
BEAN:
package com.java2s;
public class bean {
String username;
public void setUsername( String value )
{
username = value;
}
public String getUsername()
{
return username;
}
}_____________________________________________________
SERVLET:
package com.java2s;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class MyServlet extends HttpServlet {
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
HttpSession session = request.getSession(true);
// Get the bean from the session
bean myBean = (bean)session.getAttribute("bean");
// if the bean is not in session instantiate a new bean
if (myBean == null)
{
myBean = new bean();
myBean.setUsername("FAILED");
}
request.setAttribute("bean", myBean);
request.getRequestDispatcher("test.jsp").forward(request, response);
}
}____________________________________________________
PROBLEM:
I get the bean in the servlet, that is to say:
bean myBean = (bean)session.getAttribute("bean"); actually returns an object and not null, thats not a problem.
The problem is that the username field is null. I have tried it with radio buttons and numerous other fields and they have all returned null.
If anybody please could help me it would be great. I highly appreciate any time you spend helping me out.
Thanks,
James