Java Applet Download File

Question

I am trying to build a java applet which downloads a file to the client machine. As a java application this code worked fine but when I tried as an applet it does nothing. I

Answer 1

FileOutputStream fos = new FileOutputStream("google.html");

Change that to:

File userHome = new File(System.getProperty("user.home"));
File pageOutput = new File(userHome, "google.html");
FileOutputStream fos = new FileOutputStream(pageOutput);  //see alternative below

Ideally you would put the output in either of:

1. A sub-directory (perhaps based on the package name of the main class - to avoid collisions) of user.home. user.home is a place where the user is supposed to be able to read & create files.
2. A path as specified by the end user with the help of a JFileChooser.

Answer 2

See this question,

Self Signed Applet Can it access Local File Systems

I believe it will help you, you need to write your code to use PrivilegedAction.

http://docs.oracle.com/javase/1.4.2/docs/api/java/security/PrivilegedAction.html