Android Question HTTP Server Upload Error

[GiovanniO]

Hello everyone. I'm having an error in the HTTP Server example. When I try to upload a file to my phone from a web browser (on my PC connected to the same network), I get this error:

HTTP ERROR: 500​

Problem accessing /upload/storage%2Femulated%2F0. Reason:

java.lang.NullPointerException: Attempt to invoke virtual method 'void java.iutputStream.close()' on a null object reference

As I mentioned, it appears with the compiled example, meaning I haven't made any changes to it. Is there a solution?

Thank you very much for any help.

Best regards.

 

[Erel]

Are you using the old HttpServer example? Better to avoid.

 

[GiovanniO]

Are you using the old HttpServer example? Better to avoid.

Thank you very much for your answer Erel. Yes, I'm using the Jetty-based HTTP server, since I need to upload and download a file from any computer in the LAN to an Android device acting as a server.

 

[Erel]

You can add a FTP server to your app: https://www.b4x.com/android/forum/t...d-with-socket-and-asyncstreams.74320/#content

 

[GiovanniO]

You can add a FTP server to your app: https://www.b4x.com/android/forum/t...d-with-socket-and-asyncstreams.74320/#content

Thank you so much Erel, but i need to upload a file from any PC. A little context: The app is designed to visit several different branches of a company, so some files need to be collected. The simplest solution is to set up a server on Android and have users upload the file there from their browser.

Thanks again Erel.