我可以从 Java 应用程序中删除下载的 JNLP 文件（Java web start/JWS）吗？

Question

Google Chrome does not launch JNLP file automatically, so I recommend for our users this solution . It works but the downloaded JNLP file remains in download folder. Deleting them manually is troublesome.

I want to add a function to our Java application:

1. Google Chrome downloads a JNLP file and open it.
2. The JNLP file starts our Java application.
3. The Java application deletes the JNLP file (<= I want this function!)

Can I get the file path of the downloaded JNLP file which started the Java application? Of cause, our Java application jar is signed and can access local resources.

Answer 1

There is nothing in the Java WebStart paper that describes such a mechanism, hence you are in "vendor-specific" territory, and I do not think that there is an API letting your application know where the JNLP file is.

You can, however, provide a replacement for javaws which invoke the original javaws with -wait and delete the JNLP file afterwards. This must be installed by the user.