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IP address!

Angela Jessi
Ranch Hand

Joined: Nov 27, 2000
Posts: 428
Hi,
I need to set up dynamic IP address in my applet client program for socket purpose.
Thanks
Angela
maateen ashraf
Ranch Hand

Joined: Jan 08, 2001
Posts: 122
just try to use myapplet.getCodeBase().toString() method to get the IP of the perticuler host....
& then make socket connection....
tell if still problem existes....
anand rk
Greenhorn

Joined: Feb 07, 2001
Posts: 25
Hey just try this code and tell me if it works

InetAddress Address=InetAddress.getLocalHost();
System.out.println(Address);
InetAddress sw[]=InetAddress.getAllByName(" ");
Angela Jessi
Ranch Hand

Joined: Nov 27, 2000
Posts: 428
hi anand & marteen,
Thanks for your reply. But doesn't work. Here is my code:
import java.net.*;
import java.io.*;
import java.util.*;
import java.net.*;
import java.lang.String;
import java.net.InetAddress;

public class K_Socket extends Thread
{
private Socket localSocket;
private Socket sclient;
private BufferedReader in;
protected K_API sapi;
protected K_SocketThread sthread;
protected K_Main main;
public Vector queue;
String ipAddr;
StringBuffer buf;
int port,tmp,maxbuf,read;
int bytesend = 0;
char [] buffer;
private Socket clientSocket;
// defalult constructor
public K_Socket()
{
try
{
InetAddress Address=InetAddress.getHostAddress();
String ipAddr = Address.toString();
}
catch(UnknownHostException u)
{
}
//"10.3.158.172";
port = 9999;
bytesend = 0;
maxbuf = 2000;
char [] buffer = new char[maxbuf];
tmp = 0;
queue = new Vector();
}
//open the socket to remote host
public void open()
{
try
{
localSocket = new Socket(Address,port);
System.out.println("The Host IP address is:" + localSocket.getInetAddress());
}
catch(UnknownHostException uhe)
{
System.out.println("The Host is Unknown");
}
catch(IOException ioe)
{
System.out.println("I/O Error");
}
}
//To send the data to the server
public void send()
{
try
{
clientSocket = localSocket;
PrintWriter out;
BufferedReader inner;
out = new PrintWriter(clientSocket.getOutputStream());
String s = "Hello this Konica Client is connected";
buffer = s.toCharArray();
tmp = s.length();
out.write(buffer,0,tmp);
out.flush();
bytesend = bytesend + tmp;
System.out.println("Bytes send:" + bytesend);
System.out.println("The Message sent to server is" + s);
inner = new BufferedReader(new InputStreamReader(localSocket.getInputStream()));
read = inner.read(buffer,0,tmp);
StringBuffer r = new StringBuffer();
//r.append(buffer,0,tmp);
r.insert(0,buffer);
String mesg = r.toString();
System.out.println("The Received message is:" + r);
}
catch(IOException ie)
{
System.out.println("Error Sending Data");
}
}
//To receive the data from the server
public void receive()
{
//declaration
int tmp1, maxbuf = 2000;
char[] buffer = new char[maxbuf];
BufferedWriter fwrt = null;
try
{
in = new BufferedReader(new InputStreamReader(localSocket.getInputStream()));
// loop to read data from server
while((tmp1 = in.read(buffer,0,2000))>=0)
{
System.out.println("current bytereceive:"+tmp1);
//procMsg(buffer,0,tmp1);
if(tmp1<0)
{
System.out.println("Can not have a negative string");
return;
}
buf = new StringBuffer();
buf.append(buffer,0,tmp1);
System.out.println("I Have read the Buffer mesg from Server:" + buf);
String msg = buf.toString();
putQ(msg);
}
System.out.println("Total Bytes Received:" + tmp1);
fwrt.close();
}
catch(IOException e)
{
System.out.println("Reading Error");
}
}
public void putQ(String vec)
{
while(queue.isEmpty())
{
queue.addElement(vec);
System.out.println("The Message from Queue is:" + vec);
queue.removeElement(vec);
receive();
}
System.out.println("Waiting for data to come in");
}
public void run()
{
receive();
}
}
//End of the class
Plz let me know,
thanks
angela
Originally posted by anand rk:
Hey just try this code and tell me if it works

InetAddress Address=InetAddress.getLocalHost();
System.out.println(Address);
InetAddress sw[]=InetAddress.getAllByName(" ");

 
It is sorta covered in the JavaRanch Style Guide.
 
subject: IP address!