I believe that u need the servername in ur servlet to get the current
servername so that u can connect to some other servlet in the same server..
Is that correct...
If this is true then u dont need to "try" to get a parameter in .. u can use
the servletcontext methods to achieve the same.
If not, then I believe u r missing the point here. serverName is property of
ur simple class that calls the servlet.
Now u r passing a datastream to the servlet ( some UTF data)..
If u need to access the property of a class then u need to pass the object
of the class itself to the servlet using an ObjectStream.
I hope I have been able to explain what u r missing..
Regards
Rohit Parik
----- Original Message -----
From: Ashwini Bhat
To: [EMAIL PROTECTED]
Sent: Wednesday, May 23, 2001 11:51 AM
Subject: Re: GetParameter()-IllegalArgumentException
The appservlet code is as follows:
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.net.*;
import java.io.*;
public class AppServlet extends HttpServlet{
DataInputStream dis;
DataOutputStream dos;
URL url;
URLConnection con;
String s,s1;
public void init(){
}
public void service(HttpServletRequest req, HttpServletResponse
res)throws
IOException, ServletException{
System.out.println("In service of AppServlet");
/* *****************************************************
*/
// TRYING TO READ THE DATA FROM THE TEST.CLASS
s=req.getParameter("serverName");
System.out.println("The server Name to be connected is
"+s);
System.out.println("Server name is " +s);
/* *****************************************************
*/
// CONNECTING TO SOMEOTHER SERVLET
url=new URL("http://"+s+":8080/servlet/AppServletAA";);
con=url.openConnection();
System.out.println("connection open");
con.setUseCaches(false);
con.setRequestProperty("CONTENT_TYPE","application/octet-stream");
con.setDoInput(true);
con.setDoOutput(true);
dis=new DataInputStream(con.getInputStream());
System.out.println("input stream");
String s=dis.readUTF();
System.out.println("AppServlet "+s);
dos=new DataOutputStream(res.getOutputStream());
System.out.println("output stream in AppServ");
dos.writeUTF(s);
}catch(Exception e){
System.out.println("AppServlet"+e);
}
}
}
/*
****************************************************************************
************* */
The simple class is as follows
/*
****************************************************************************
************* */
import java.net.*;
import java.util.*;
import java.io.*;
import java.net.*;
import javacom.*;
public class Test {
URL url;
URLConnection con;
String ss;
public Test(){
}
public String display(String tSerName){
try {
/*
***************************************************** */
// POPULATING THE VALUE OF serverName
String serverName= tSerName;
url=new
URL("http://"+serverName+":8080/servlet/AppServlet";);
System.out.println("server name
"+serverName +" "+tSerName);
/*
***************************************************** */
//CONNECTING TO THE SERVLET APPSERVLET.
con=url.openConnection();
con.setUseCaches(false);
con.setRequestProperty("CONTENT_TYPE","application/octet-stream");
con.setDoInput(true);
con.setDoOutput(true);
con=url.openConnection();
con.setUseCaches(false);
con.setDoInput(true);
con.setDoOutput(true);
con.setRequestProperty("CONTENT_TYPE","application/octet-stream");
System.out.println("................
xxxxx");
DataOutputStream dos =new
DataOutputStream(con.getOutputStream());
dos.writeUTF("LocalData");
System.out.println("dummy test
connecting");
dos.flush();
DataInputStream dis =new
DataInputStream(con.getInputStream());
ss=dis.readUTF();
System.out.println("simply reading");
System.out.println(ss);
//dis.close();
//dos.close();
}catch(Exception e){
System.out.println("Client
Exception1................");
e.printStackTrace();
}//end of catch
System.out.println("before return in
test");
return (ss);
}// end of method
public static void main(String s[]) throws Exception{
/*
THE test object is called in VB
THE following line establishes a connection with J-Integra
*/
com.linar.jintegra.Jvm.register("serverjvm");
Thread.sleep(6000000);
}
}//end of class
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Archives: http://archives.java.sun.com/archives/servlet-interest.html
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LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
