how to link a jsp and a servlet?

41 New Member

Hi guys,

I am trying to link a jsp and servlets using beans, but how do I declare the id in the servlet. I can't seem to link them both. Help!!!!!

Thanks in advance.

Below is the jsp and servlet code:

Expand|Select|Wrap|Line Numbers

 
<%@ page import='java.util.*‘ %>
 
<html>

<head>
 
<LINK REL="stylesheet" TYPE="text/css" HREF="stylesheet1.css">
 
<head>
 
<body>
 
<hr></hr>
 
<center>
 
<h1>Weather Forecast</h1>
 
<jsp:useBean id="today" scope="request" class="TestServlet" />
 
<%= request.getOutputStream() %>

Expand|Select|Wrap|Line Numbers

 
import javax.servlet.*;

import javax.servlet.http.*;

import java.io.*;
 
public class TestServlet extends HttpServlet {
 
    String  valString;
 
            public void doPost(HttpServletRequest request, HttpServletResponse response) 

            throws ServletException, IOException { 
 
            response.setContentType("text/html");

            PrintWriter out = new PrintWriter(response.getOutputStream());
 
             try { 
 
             FileReader dFile = new FileReader("DataFile.txt");
 
             BufferedReader dataFile = new BufferedReader(dFile);
 
            valString = dataFile.readLine();
 
            if(valString != null)
 
            System.out.println(" Data is: " + valString);
 
        RequestDispatcher view =     request.getRequestDispatcher("weather.jsp");
 
        view.forward(request, response);
 
    dataFile.close();
 
            }
 
        catch (FileNotFoundException e) {

            System.err.println("FileStreamsTest: " + e);
 
        }
 
            out.println("<html>");

            out.println("<head><title>Temperature</title>");

            out.println("</head><body>");

            out.println("<b>The temperature today is: " +   valString + "</b><br>");

            out.println("</body></html>");
 
            out.close();

        }
 
}

Feb 14 '07 #1

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