Java打开文件-在Eclipse上有效，在可运行的JAR / exe中不起作用

Question

I have some java code that I'm using to open a file:

Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler " + output.getAbsolutePath());

It works just fine when I execute it from Eclipse, however, when I export the project to a runnable JAR, the functionality stops working. I've tried various different options to open the file (Desktop.open, ProcessBuilder etc.) all with the same results (Eclipse OK, runnable JAR not).

This exact code previously worked when I exported it in the past (1.5 years ago). I believe that was with Java 1.6 and now we're on Java 1.7. Not sure if that's the reason though and I don't have the option to compile using previous versions of Java. Any ideas?

Answer 1

thanks for attempting to help. I figured out the answer which is quite simply that I'm an idiot :) Opening the file wasn't the problem, the file wasn't being written in the first place, and the reason it wasn't being written was quite simply because the code was set to write it into a nested folder structure which had not yet been created. I didn't even think of this because I assumed that any necessary folders specified in the output string would be created automatically. Doh!