Question

I’m developing an applet that requires to save a text file on the server. After wrestling with this problem for a while I stumbled on the internet on the Lynlin.class which can send files using ftp connection. That works fine provided I add to my C:\Program Files\Java\jre7\lib\security\java.policy file a following line:

permission java.net.SocketPermission "192.168.33.15:*", "connect, accept ,resolve, listen";

If I try to run this applet from the computer that did not have the java.policy file edited I get the following error:

java.security.AccessControlException: access denied 
    ("java.net.SocketPermission" "192.168.33.15:21" "connect,resolve")*

Does anybody know how could I get rid of this problem other than editing java.policy file at each and every computer that will be using this applet?

Just to claryfy:

• my applet at the moment is not signed, but the server with which it tries to send a file is the same at which the applet is located

• the http and ftp server are microsoft IIS running on the Windows Server 2003 (ip 192.168.33.15)

Answer 1

As EJP alluded to, the address delivering the applet, and the address of the server, seem to be different to the JRE that is running the applet.

It is necessary to access the HTML via the server (an http://.. address).