QRCode servlet.QRCode QRCode /qrcode index.jsp characterEncoding util.SetChar characterEncoding /* This is the description of my J2EE component This is the display name of my J2EE component MainCtrl control.MainCtrl This is the description of my J2EE component This is the display name of my J2EE component Upload control.Upload MainCtrl /jspmjsfglxthsg8101W6B8 Upload /upload