The new path cannot be created when the Linux file is uploaded, and mkdirs also returns false.

Web project, the file upload to the Linux server cannot create a new path, Java.io.File does not automatically create the path, manual mkdirs also return false, check all the code, did not find the problem.

As a colleague reminds you, the Tomcat service in Linux uses Tomcat, and the owner of the target path portalfiles is root, so it is not authorized to create a subpath on the target path.

Use

Chown-r Tomcat:tomcat Portalfiles

Recursively modifies the owner under the Portalfiles path.

The new path cannot be created when the Linux file is uploaded, and mkdirs also returns false.