Created by: ichaly
1.Fix FilePart.java does not contain Content-Type lead to the server receives the damaged file 2.In StringParser.java if charset is null set a default value "UTF-8"; Fix return chinese garbled.
Created by: ichaly
1.Fix FilePart.java does not contain Content-Type lead to the server receives the damaged file 2.In StringParser.java if charset is null set a default value "UTF-8"; Fix return chinese garbled.