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Servlet that reads form data and process it |
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This J2EE tip demostrates a servlet that reads data from a form and do
further processing. The concept of this reading can be used in many
appliacation on web.
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class FormReaderServlet extends HttpServlet {
ServletConfig sc;
public void init(ServletConfig sc)throws ServletException {
super.init(sc);
}
public void service(ServletRequest request , ServletResponse response)
throws ServletException , IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
Enumeration enum = request.getParameterNames();
/* Developer can use request.getParameter() if there is
only one parameter in the Form or else he can use
getParameterNames() only
*/
while(enum.hasMoreElements()) {
String str = (String)enum.nextElement();
String key = request.getParameter(str);
out.println(str + "\t" + key);
}
}
public void destroy(){}
}
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