Hey!
Yes do as Spencer suggests. Make sure you override the init(). For instance, add
this:
private static String question; // add another instance variable
/**
* <p>Initialize the servlet. This is called once when the
* servlet is loaded. It is guaranteed to complete before any
* requests are made to the servlet
*
* @param cfg Servlet configuration information
*/
public void init(ServletConfig cfg)
throws ServletException
{
super.init(cfg); // always!
// Get initialization parameter
question = getInitParameter ("question");
}
One question for you before you move on, why are you putting this in the
properties.servlet? I can not see the advantage to this. If you want to change to
another voting subject, you
will have to change the init servlets.properties. It seems like alot of work.
Thank you for an answer.
Danny Rubis
"P.Venkata Suresh" wrote:
> Dear friends,
> Iam having problem with printing a string from my servlet which i passed through my
>servlet.properties file.It is printing null in the place of message.Please help me
>at the earliest.
>
> The servlet.properties file is as follows:
>
> servlet.voting.code=VotingServlet
> servlet.voting.initArgs=question="Servlets are great"
>
> The servlet program is as follows:
> Problem statements are marked with *'s.
>
> import javax.servlet.*;
> import javax.servlet.http.*;
> import java.io.*;
>
> //
> //
> // VotingServlet
> //
> //
> public class VotingServlet extends HttpServlet
> {
> // Static variables shared by all instances of VotingServlet
> private static int VOTE_YES = 0;
> private static int VOTE_NO = 0;
> private static int VOTE_UND = 0;
>
> public void doGet(HttpServletRequest request,
> HttpServletResponse response)
> throws ServletException, IOException
> {
> // Set MIME content-type for response
> response.setContentType("text/html");
>
> // Obtain a print writer to output our HTML form
> PrintWriter out = response.getWriter();
>
> // Output header
> out.println ("<H4 ALIGN=CENTER><FONT COLOR='GREEN'>Online Voting
>Servlet</FONT></H4><HR COLOR='GREEN'>");
> /**************************************************************************/
> // Get initialization parameter
> String question = getInitParameter ("question");
>
> // Output question
> out.println ("<H3> " + question + " </H3>");
> /**************************************************************************/
>
> // Output HTML form
> out.println ("<FORM ACTION='" + request.getServletPath() + "' METHOD=POST>");
> out.println ("<PRE>");
> out.println (" <B> <input type=radio name='vote' value='yes'> YES");
> out.println (" <B> <input type=radio name='vote' value='no' > NO");
> out.println (" <B> <input type=radio name='vote' value='und' checked>
>UNDECIDED");
> out.println ("<input type=submit>");
> out.println ("</PRE></FORM>");
>
> // Output footer
> out.println ("<HR COLOR='GREEN'>");
>
> out.close();
> }
>
> public void doPost(HttpServletRequest request,
> HttpServletResponse response)
> throws ServletException, IOException
> {
> // Set MIME content-type for response
> response.setContentType("text/html");
>
> // Obtain a print writer to output our HTML form
> PrintWriter out = response.getWriter();
>
> // Output header
> out.println ("<HEAD><TITLE>Voting Results</TITLE></HEAD>");
> out.println ("<H4 ALIGN=CENTER><FONT COLOR='GREEN'>Online Voting
>Servlet</FONT></H4><HR COLOR='GREEN'>");
>
> // Get initialization parameter
> String question = getInitParameter ("question");
>
> // Output question
> out.println ("<H3> " + question + " </H3>");
>
> // Get vote from HTML form
> String vote = request.getParameter ("vote");
>
> // Default to undecided if no vote cast
> if (vote == null) vote="und";
>
> // Increment appropriate vote counter
> if (vote.equals ("yes")) incYes();
> if (vote.equals ("no")) incNo();
> if (vote.equals ("und")) incUndecided();
>
> // Output table of results
> out.println ("<TABLE BORDER=1 WIDTH=40%>");
> out.println ("<TR> <TD> <H4> Results </H4> </TD> </TR>");
> out.println ("<TR> <TD> YES </TD> <TD> " + getYes() + " </TD> </TR>");
> out.println ("<TR> <TD> NO </TD> <TD> " + getNo() + " </TD> </TR>");
> out.println ("<TR> <TD> UNDECIDED </TD> <TD> " + getUndecided() + " </TD> </TR>");
> out.println ("</TABLE>");
>
> // Output footer
> out.println ("<HR COLOR='GREEN'>");
>
> out.close();
>
> }
>
> // Accessor methods to access member variables
> public synchronized int getYes()
> {
> return VOTE_YES;
> }
>
> // Accessor methods to access member variables
> public synchronized int getNo()
> {
> return VOTE_NO;
> }
>
> // Accessor methods to access member variables
> public synchronized int getUndecided()
> {
> return VOTE_UND;
> }
>
> // Acccessor methods to modify member variables
> public synchronized void incYes()
> {
> VOTE_YES++;
> }
>
> // Acccessor methods to modify member variables
> public synchronized void incNo()
> {
> VOTE_NO++;
> }
>
> // Acccessor methods to modify member variables
> public synchronized void incUndecided()
> {
> VOTE_UND++;
> }
>
> // Return name of servlet
> public String getServletInfo()
> {
> return "VotingServlet";
> }
> }
>
> Thanking u all in advance,
> P.V.SURESH
> ([EMAIL PROTECTED])
>
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