errors.go
func (e *BusinessError) New(errno int, message string) *BusinessError {
	e.HTTPCode = http.StatusBadRequest
	e.Errno = errno
	e.Message = message
	return e
}
func (e *BusinessError) New(errno int, message string) *BusinessError {
	e.HTTPCode = http.StatusBadRequest
	e.Errno = errno
	e.Message = message
	return e
}
// New http.StatusInternalServerError