Entry

Can i submit the form fields on an applet to a server side script?

Feb 18th, 2002 21:23
suresh kc, Nagesh Deva, Suresh KC

It doesn't work the way HTML forms do...
as far as I know... there are two ways to work around this problem.
Either you can open the URLConnection
to a servlet or any other server side script
OR
getAppletContext().showDocument(url);
to load that server script in the browser.
the earlier method returns the output to your program.
You will have to construct the url in either cases
For example,
you have a textfield called name
and a when a button called send is clicked you want your server side 
script to be called, then you would write something like this:
public class MyApplet extends Applet 
implements ActionListener {
URL url;
URLConnection uc;
DataInputStream dis;
...
public void actionPerformed(ActionEvent e) {
    String txt = name.getText();
    if(txt == null) return;
    //case1
    try {
    url = new URL(s);
    uc = new URLConnection (url);
    dis = new DataInputStream(uc.getInputStream());
    } catch(Exception e) {}
    while(true) {
      try {
          char c = br.readChar();
      } catch(Exception e_) {}
    }
    try {
    dis.close();
    uc.close();
    } catch(Exception e__) {}
    //or  not both
    //case2
    try {
        url = new URL("/cgi-bin/myscript.pl?name="+txt);
        getAppletContext.showDocument(url);
    } catch (MalformedURLException mfe) {
        showStatus("URL not wellformed");
    } catch (UnknownHostException uhe) {
        showStatus("Host unreachable");
    }
}