Re: Java class to retrieve a web URL?

[Pete Hall <pbhall@xxxxxxxxxx>]

At 10:58 08/04/1999 , David Gibbs wrote:
>Does anyone know of a open source Java class that will retrieve a web URL
>and return the results as a String?

I don't know if this is deprecated these days, but you might look at the
URL class in java.net. I think toExternalForm() will give you what you
want. The actual URL is retrieved with getDocumentBase(). Here's an example
that does something not too dissimilar:

/**
* getPage retrieves the requested html document
* @parm file The file name of the document being retrieved
*/
        private void getPage(String file, String frame) {
            AppletContext context;
            URL urlBase;
              URL url;
            String protocol;
            int port;
            String currentFile;
            String path;
            int endOfPath;
            String host;
            context = getAppletContext();
            urlBase = getDocumentBase();
            protocol = urlBase.getProtocol();
            port = urlBase.getPort();
              host = urlBase.getHost();
            currentFile = urlBase.getFile();
            if ((endOfPath = currentFile.lastIndexOf("/")) == -1) {
                endOfPath = currentFile.lastIndexOf("\\");
            }
            switch (endOfPath) {
                case -1:
                    path = "";
                    break;
                case 0:
                    path = "";
                    break;
             default:
                path = currentFile.substring(1, endOfPath);
            }
            try {
                url = new URL(protocol, host, port, "/" + path + "/" + file);
                super.showStatus(url.toExternalForm());
                super.getAppletContext().showDocument(url, frame);
            }   catch (MalformedURLException e) {}
        }


Pete Hall
pbhall@execpc.com
http://www.execpc.com/~pbhall
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