In this section we will discuss how can a server information be displayed in Java Servlet.
Server snoop
In this section we will discuss how can a server information be displayed in Java Servlet.
Snooping the server is an act to find the information of a server i.e. what is its name, port number, protocol etc as your requirement.
Example :
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class ServerSnoop extends HttpServlet {
String servername, serverprotocol, serverscheme;
int serverport;
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
servername = req.getServerName();// Show the server name.
serverport = req.getServerPort();// show the server port no.
serverprotocol = req.getProtocol();// Show the protocols name and
// version used by you.
serverscheme = req.getScheme();// show the scheme name used to make this
// request.
PrintWriter pw = res.getWriter();
pw.println("<html><head>");
pw.println("<title>Server Information</title></head>");
pw.println("<body bgcolor=#ff00ff>Name of Server is : " + servername
+ "<br>");
pw.println("Port number of a Server " + servername + " is "
+ serverport + "<br>");
pw.println("The server prottcol is " + serverprotocol + "<br>");
pw.println("Name of Scheme that is used to make this request : "
+ serverscheme);
pw.println("</body></html>");
}
}
The xml file need to be edit as
<servlet> <servlet-name>bipul3</servlet-name> <servlet-class>ServerSnoop</servlet-class> </servlet> <servlet-mapping> <servlet-name>bipul3</servlet-name> <url-pattern>/ServerSnoop</url-pattern> </servlet-mapping>
Output :
When you will execute this code at server the output will be showing as below.
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