signed applet, downloading file from server and place it in the file system

I have signed applet, I want to download any kind of file from the server and place it in the file system using the applet.

P开发者_开发知识库lease give some pointer.

Thanks in advance.

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You'll have to write servlet for this. Because servlets can access to server local file system and get files you want for your applet :) Make bound like a

applet <-servlet<-server

Good luck

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The applet need to be signed to access the file system.

 public String downloadFile(final String filename) {
    return (String)AccessController.doPrivileged(new PrivilegedAction(){
        public Object run() {       
          try {
                // downloadURL is the server URL say http://localhost/downloads
                // filename is a file want to download from the server 
                // localpath is the path you want to download in the file system
                URL finalURL = new URL(downloadURL + filename);
                ReadableByteChannel rbc = Channels.newChannel(finalURL.openStream());
                FileOutputStream fos = new FileOutputStream("/"+localpath.replace("\\","/") +  filename);
                fos.getChannel().transferFrom(rbc, 0, 1 << 24);
                fos.close();
            return "true";
          }catch (ConnectException ce) {
              e.printStackTrace();
              return "false";
          } 
          catch (Exception e) {
            e.printStackTrace();
            return "false";
          }
        }
      });
}