SAP需要将内表数据转换为JSON格式，可以使用 CL_FDT_JSON。
1 TYPES: BEGIN OF ty_p, 2 name TYPE c LENGTH 10, 3 age TYPE i, 4 END OF ty_p. 5 6 DATA lt_p1 TYPE TABLE OF ty_p. 7 DATA lt_p2 TYPE TABLE OF ty_p. 8 DATA ls_p TYPE ty_p. 9 DATA ls_json TYPE string. 10 11 ls_p-name = 'Peter'. 12 ls_p-age = 18. 13 APPEND ls_p TO lt_p1. 14 15 ls_p-name = 'John'. 16 ls_p-age = 28. 17 APPEND ls_p TO lt_p1. 18
19 CALL METHOD cl_fdt_json=>data_to_json 20 EXPORTING 21 ia_data = lt_p1 22 RECEIVING 23 rv_json = ls_json. 24 25 WRITE ls_json.
结果：
如果需要将JSON数据转换为内表格式，也很简单。
1 CALL METHOD cl_fdt_json=>json_to_data 2 EXPORTING 3 iv_json = ls_json 4 CHANGING 5 ca_data = lt_p2.
