import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
/**
* The servlet ErrorDisplayerServlet is used to display all the web site errors.
*
* @author Sofoklis Stouraitis
*/
public class ErrorDisplayerServlet extends HttpServlet {
/**
* Handles HTTP Post requests.
*
* @param request
* the request object
* @param response
* the response object
*
* @throws IOException
* if an input or output error is detected when the servlet
* handles the Post request
* @throws ServletException
* if the request for the Post could not be handled
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
response.setContentType("text/html; charset=ISO-8859-7");
PrintWriter out = new PrintWriter(response.getWriter(), true);
try {
/*
* gets the error message from request object.
*/
String theError = request.getAttribute("error").toString();
out.println("<html>");
out.println("<head>");
out.println("<Meta Http-Equiv='Content-Type' Content='text/html; Charset=windows-1253'>");
out.println("<title>ErrorDisplayerServlet</title>");
out.println("</head>");
out.println("<body bgcolor='#CCFFaa'>");
out.println("<hr><h3>ErrorDisplayerServlet is running...</h3><hr><br>");
out.println("<font color='#FF0000'>");
out.println("<h1>Error description:</h1>");
out.println("<b>" + theError + "</b>");
out.println("</font>");
out.println("</body></html>");
} catch (Exception ex) {
out.println("Exception: " + ex.getMessage());
out.println("</body>");
out.println("</html>");
}
}
/**
* Handles HTTP GET requests.
*
* @param request
* the request object
* @param response
* the response object
*
* @throws IOException
* if an input or output error is detected when the servlet
* handles the GET request
* @throws ServletException
* if the request for the GET could not be handled
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
doPost(request, response);
}
}//End of class
|