ServletRequest.getServerPort() : ServletRequest « javax.servlet « Java by API

1. Java by API
2. javax.servlet
3. ServletRequest

ServletRequest.getServerPort()

import java.io.IOException;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.UnknownHostException;

import javax.servlet.GenericServlet;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class GetKey extends GenericServlet {
  public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException {
    res.setContentType("text/plain");
    PrintWriter out = res.getWriter();

    String key = getInitParameter("key");
    String host = req.getServerName();
    int port = req.getServerPort();

    if (!keyFitsServer(key, host, port)) {
      out.println("Pirated!");
    } else {
      out.println("Valid");
    }
  }

  private boolean keyFitsServer(String key, String host, int port) {
    return true;
  }
}

           
       

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