Question

I am reading byte data and writing a pdf file to my tomcat temp folder

  FileOutputStream fos = new FileOutputStream(File.createTempFile("dummy-file", ".pdf"));

The file is written successfully.

In a later stage on my application I need to be able to read that file. Can I read any file directly from temp folder? I am not able to

I am using the below path to refer that file while reading.

 file:///C:/liferay-developer-studio-1.3.1/Tools/Liferay%20Developer%20Studio/liferay-portal-6.0-ee-sp2/tomcat-6.0.32/temp/dummy-file68824607895269300.pdf  //these numbers are string generated randomly while writing the file.

Using this url I see blank result. I assume there is another way to read urls from temp folder? Or is my url wrong?

Answer 1

First try the simple case:

File pdfFile = File.createTempFile("dummy-file", ".pdf"));
FileOutputStream fos = new FileOutputStream(pdfFile);
store(pdfFile.getPath());

…

File pdfFile = new File(retrieve());

If that works, you might try pdfFile.toURI().
Probably something like file://C:/... (just 2 or 1 slashes).