CODEWITHSUNDEEP
javajavascripthtmlservlets
Udi Livne
Udi Livne

Reputation: 127

Submitting information from one servlet to another

I have a little bug that I hope someone can solve for me.

servlet1:

The story here is simple - I created a form and inside it an image. When you click this image information should be submitted to servlet2.

public void f1(HttpServletRequest request, HttpServletResponse response) throws  
IOException
{
    response.setContentType("text/html"); 
    PrintWriter out = response.getWriter();
    out.print("<html></br>");
    out.print("<script language='javascript' type='text/javascript'   
    src='functions.js'></script></br>");
    out.print("<body></br>");
    out.print("<form method='post' name='mainForm' action='servlet2'><br/>");
    out.print("<img id='someId' src='someSrc' onclick='submit()'/><br/>");
    out.print("<label id='gameStatus'>Welcome!</label></br>");        
    out.print("</form></br>");
    out.print("</body>\n</html></br>");
}

OK, I clicked the image and information is now submitted (I suppose)

servlet2:

Here I would just like to print out the parameters submitted earlier.

protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
    response.setContentType("text/html;charset=UTF-8");
    PrintWriter out = response.getWriter();        
    Enumeration parameters = request.getParameterNames();        
    while (parameters.hasMoreElements())
    {            
        out.print((String)parameters.nextElement() + "<br/>");                
    }
}

unf. my output is null so i guess information was not submitted. The question is why? any typos? or a logical prob? Thank you!

Upvotes: 0

Views: 908

Answers (1)

JR Galia
JR Galia

Reputation: 17269

What information you are trying to pass? I don't see any input field in your form.

Kindly try to add input in your form. Let us see if it is displayed in your second servlet.

out.print("<form method='post' name='mainForm' action='servlet2'><br/>");
out.print("<input type='text' name='param1' value='test' /><br/>");
out.print("<img id='someId' src='someSrc' onclick='submit()'/><br/>");
out.print("<label id='gameStatus'>Welcome!</label></br>");

Check if param1 is displayed.

Upvotes: 1

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