get get request . concode_field_sep String post concode_elem_sep Map<String,String> response concode_elem_sep String header concode_elem_sep String source concode_elem_sep String url concode_field_sep String getPost concode_elem_sep Map<String,String> getResponse concode_elem_sep String getSource concode_elem_sep String toString concode_elem_sep String getHeader
String function ( ) { return url ; }