Applets with Servlet or jsp

1999-06-10 Thread CN User 

Can you call a servlet or jsp from within a applet?

Or should one just connect back to the server using a Socket connection.

Thanks


Alexis Bose

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Re: Applets with Servlet or jsp

1999-06-10 Thread Adam 

The only possible way that I see is the same way one would call a
servlet/jsp from within an applett using the http (hyper text transfer
protocol).  There are tons of programs which to similiar things (such as Tik
, a TCL script which querries different news sites to gather news headers).

This way I dont think that servlet/jsp are the only ones you could use. Any
CGI would serve this purpose.

Now if security of others accessing your servlet/jsp is important I would
also setup that your applet sends in the get http header some unique name
that would identify it from all the rest (netscape / ie/ mosaic/ lynx/
kfm/mozzila/opera... and others)

I remember seeing one applet use a Netscape Server on NT connecting to CGI
that was an .exe file. It was some applet based store system, that used cgi
to connect to DB (back when RMI didnt exist).

Hopefully this is what you seek for...



 -Original Message-
 From: CN User [mailto:[EMAIL PROTECTED]]
 Sent: Thursday, June 10, 1999 17:01
 To: [EMAIL PROTECTED]
 Subject: Applets with Servlet or jsp


 Can you call a servlet or jsp from within a applet?

 Or should one just connect back to the server using a Socket
 connection.

 Thanks


 Alexis Bose

 ==
 =
 To unsubscribe, send email to [EMAIL PROTECTED] and
 include in the body
 of the message "signoff JSP-INTEREST".  For general help,
 send email to
 [EMAIL PROTECTED] and include in the body of the message "help".


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Re: Applets with Servlet or jsp

1999-06-10 Thread Plagge, Rick 

 A code fragment that might help you is below:
(where applet parameter icodeURL is something like
http://yourserver/servlet/servletname  and you import java.net and java.io)

boolean getInformixAC() {
URL icodeURL = null;
times=1;
Notes.setText("" );


if(skip == 0) {
  URLiname = getParameter("icodeURL");

  if (URLiname == null) URLiname =
"http://mcars007:80/cgi-bin/echo1.cgi";

  icodeStr = new String( URLiname );
  Parse_pro_bcs();
}

skip++;
try {
sel_stmt = icodeStr + "skip=" + skip;
icodeURL = new URL(sel_stmt);
}
catch( MalformedURLException e) {
setBackground(Color.green);
return false;
}

String irbuf;
String URLiname;
try {
InputStream iistream = icodeURL.openStream();
DataInputStream idstream = new
  DataInputStream(new
BufferedInputStream(iistream));
while((irbuf = idstream.readLine()) != null) {

   try { parseData(irbuf); }
   catch( Exception e) {
setBackground(Color.red);
return false;
}

}
}
catch(IOException e) {
setBackground(Color.blue);
return false;
}
return true;
}


 -Original Message-
 From: CN User [SMTP:[EMAIL PROTECTED]]
 Sent: Thursday, June 10, 1999 2:01 PM
 To:   [EMAIL PROTECTED]
 Subject:  Applets with Servlet or jsp

 Can you call a servlet or jsp from within a applet?

 Or should one just connect back to the server using a Socket connection.

 Thanks


 Alexis Bose

 ==
 =
 To unsubscribe, send email to [EMAIL PROTECTED] and include in the
 body
 of the message "signoff JSP-INTEREST".  For general help, send email to
 [EMAIL PROTECTED] and include in the body of the message "help".

===
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff JSP-INTEREST".  For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".

Re: Applets with Servlet or jsp

1999-06-10 Thread Jenkins, Ed 

Elliot Rusty Harold has a fabulous book on Java network programming.  I
shows examples of how to do this.

You can do something like applet.getAppletContext.showDocument(url) to
replace the current page with something else.

If you want the current page to remain, but go get info from the server and
display it within your applet, you have 2 options.

1.  Use sockets (java.net.socket).
2.  Use java.net.HttpURLConnection.

Ed

Livin' La Vida Loca



 -Original Message-
 From: Adam [mailto:[EMAIL PROTECTED]]
 Sent: Thursday, June 10, 1999 05:30 PM
 To: [EMAIL PROTECTED]
 Subject: Re: Applets with Servlet or jsp


 The only possible way that I see is the same way one would call a
 servlet/jsp from within an applett using the http (hyper text transfer
 protocol).  There are tons of programs which to similiar
 things (such as Tik
 , a TCL script which querries different news sites to gather
 news headers).

 This way I dont think that servlet/jsp are the only ones you
 could use. Any
 CGI would serve this purpose.

 Now if security of others accessing your servlet/jsp is
 important I would
 also setup that your applet sends in the get http header some
 unique name
 that would identify it from all the rest (netscape / ie/ mosaic/ lynx/
 kfm/mozzila/opera... and others)

 I remember seeing one applet use a Netscape Server on NT
 connecting to CGI
 that was an .exe file. It was some applet based store system,
 that used cgi
 to connect to DB (back when RMI didnt exist).

 Hopefully this is what you seek for...



  -Original Message-
  From: CN User [mailto:[EMAIL PROTECTED]]
  Sent: Thursday, June 10, 1999 17:01
  To: [EMAIL PROTECTED]
  Subject: Applets with Servlet or jsp
 
 
  Can you call a servlet or jsp from within a applet?
 
  Or should one just connect back to the server using a Socket
  connection.
 
  Thanks
 
 
  Alexis Bose
 
  ==
  =
  To unsubscribe, send email to [EMAIL PROTECTED] and
  include in the body
  of the message "signoff JSP-INTEREST".  For general help,
  send email to
  [EMAIL PROTECTED] and include in the body of the message "help".
 

 ==
 =
 To unsubscribe, send email to [EMAIL PROTECTED] and
 include in the body
 of the message "signoff JSP-INTEREST".  For general help,
 send email to
 [EMAIL PROTECTED] and include in the body of the message "help".


===
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff JSP-INTEREST".  For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".