Java : cannot create a file, write access denied

Question

I am installing my webapp(J2EE on tomcat7) on a Ubuntu server.

In my webapp, on my dev pc, I am creating a text file :

File file = new File("VE_EXPORT.TXT");          
FileWriter writer;  
writer = new FileWriter(file, true);
printer.write(necr+jnal+datp+dath+npie+cptg+libe+mont+codc+npoint+codeana+libCompte+"O"+newLine);
printer.close();            
FileInputStream fileInputStream = new FileInputStream(file);
response.reset();
response.setContentType("application/octet-stream");
response.setContentLength((int) (file.length()));
response.setHeader("Content-Disposition", "attachment; filename=\"" + file.getName() + "\"");
OutputStream output = response.getOutputStream();
IOUtils.copyLarge(fileInputStream, output);
file.delete();
output.flush();

It works fine.
But on the ubuntu server I have a 'permission denied'.
Is there a way not to have this error?
Do I need to do a new file if I just need to flush the output?
Or a way to configure the ubuntu server in order to allow java (or tomcat7 or else) to create the file?

Thanks.

Answer 1

使用chmod获得写访问权限。