River's lake for help brothers and sisters!!!!!!

Many FTP connection pool, project launch, will multiple FTP connection pool into beans,
Very strange access to FTP file, but have been submitted to the Java. IO. IOException: Connection is not open this mistake!

CodePudding user response:

https://stackoverflow.com/questions/43516616/connection-is-not-open-ftp-android

CodePudding user response:

This tip is not very clear