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Re:Applet POST ....

From: Mark I. Lubin <mil@phys.physics.ucf.edu>
Date: Tue, 09 Jul 1996 13:00:49 -0500
Message-Id: <31E29E51.352A@phys.physics.ucf.edu>
To: kendal@interlog.com
Cc: www-jigsaw@w3.org
The following (this was wrriten by Anselm essentially) works and may
help you:

1) compile and install on Jigsaw

 //ReverseString.java:
package w3c.jigsaw.contrib;

import java.util.*;

import w3c.jigsaw.http.*;
import w3c.jigsaw.forms.*;

public class ReverseString extends PostableResource {

	public Reply handle(Request request, URLDecoder data) 
		throws HTTPException
	{
		String str = data.getValue("string");
		if ((str == null) || str.equals("")) {
		    Reply reply = request.makeReply(HTTP.OK);
		    reply.setContent("reverse=[]");
		    return reply;
		}
		// Reverse the string (should be some other method, etc)
        	// You could ameliroate this alot, but that's not the point
		char cs[] = new char[str.length()];
		str.getChars(0, cs.length, cs, 0);
		char cr[] = new char[cs.length];       
		for(int i = 0 ; i < cs.length; i++)
		    cr[cs.length-1-i] = cs[i];
        	// Emit reply:
		Reply reply = request.makeReply(HTTP.OK);
		reply.setContent("reverse=["+new String(cr)+"]");
		return reply;
	}

	public ReverseString() {	
	}

}


on the client side:

//ReverseTest.java
               import java.io.*;
               import java.net.*;

               public class ReverseTest {
                   public static void main(String args[]) {
                       try {
                           if (args.length != 1) {
                               System.err.println("Usage:  java
ReverseTest string_to_reverse");
                               System.exit(1);
                           }
                           String stringToReverse =
URLEncoder.encode(args[0]);

// Put you URL here !!!
URL url = new URL("http://cmt.physics.ucf.edu:9999/User/reverse");
System.out.println("protocol = " + url.getProtocol());
                  System.out.println("host = " + url.getHost());
                  System.out.println("filename = " + url.getFile());
                  System.out.println("port = " + url.getPort());
                  System.out.println("ref = " + url.getRef());


                           URLConnection connection =
url.openConnection();
// writing to URL
                           PrintStream outStream = new
PrintStream(connection.getOutputStream());

                           DataInputStream inStream;
                           String inputLine;

                           outStream.println("string=" +
stringToReverse);
                           outStream.close();

// reading from URL
                           inStream = new
DataInputStream(connection.getInputStream());
                           while (null != (inputLine =
inStream.readLine())) {
                               System.out.println(inputLine);
                           }
                           inStream.close();
                       } catch (MalformedURLException me) {
                           System.err.println("MalformedURLException: "
+ me);
                       } catch (IOException ioe) {
                           System.err.println("IOException: " + ioe);
                       }
                   }
               }





Mark Lubin
Received on Tuesday, 9 July 1996 13:56:13 GMT

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