reading files and displaying info about them. applet, servlet, or combo?
I have written a class java that reads the directory of files, then reads each individual file looking at file sizes and different records inside the files. It works fine until I make it an applet. Then it gets a java security manager error.
When I read about applets, it seams that they cannot read files on a server, i. e. you have to be a servelet.
I am stuck now, because not only do I need to read files, but display them back.And it appears that servelets cannot display stuff.
So basically I feal screwed.
Any light you can shed on this I would appreciate.
Thank you.
[615 byte] By [
jagossagea] at [2007-11-27 6:55:37]
Servlets can "display stuff", and applets can "read files on a server" (though the latter may be a little more complex, depending on the environment). The security manager issue can be resolved by understanding [url=http://java.sun.com/sfaq/]applet security[/url]. The servlet issue can be resolved by understanding [url=http://java.sun.com/j2ee/1.4/docs/tutorial/doc/Servlets.html#wp69957]servlet technology[/url].
Let us know if there is a specific issue we can help with by providing explicit details.
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I cannot find a file on my PC named properties. I do not know if it has a suffix or not. I also have no directory called hotjava.
I want to test using appletviewer on my PC before trying it on the server.
Using appletviewer, the applet does not initialize. When I close the explorer, the DOS screen shows some security problems :" java.security.accescontrolexception: acess denied (java.io.filepermission.read) at java.security.accesscontrolcontext.checkpermission(accesscontrolcontext.java:264).............."
I have created a file called properties in the jdk1.5.0_11/bin directory with acl.read=c:
Same errors.
I created a hotjava directory and created the properties in it also, but got the same thing.
Please help.
