[ABAP] JSON -> Struktur

Variante 1 (/ui2/cl_json)

* ABAP Zieldatentyp
TYPES: BEGIN OF ty_abap,
         param1 TYPE char64,
         param2 TYPE char64,
       END OF ty_abap.

* JSON-Quelldaten
DATA: lv_json_response TYPE string VALUE '{"param1":123,"param2":321}'.
DATA: ls_abap TYPE ty_abap.

TRY.
* JSON->ABAP
    /ui2/cl_json=>deserialize( EXPORTING json        = lv_json_response
                                         pretty_name = /ui2/cl_json=>pretty_mode-camel_case
                               CHANGING  data        = ls_abap ).

    cl_demo_output=>write_data( lv_json_response ).
    cl_demo_output=>write_data( ls_abap ).
    cl_demo_output=>display( ).
  CATCH cx_root INTO DATA(e_txt).
    MESSAGE e_txt->get_text( ) TYPE 'S' DISPLAY LIKE 'E'.
ENDTRY.

Variante 2 (cl_fdt_json)

* ABAP Zieldatentyp
TYPES: BEGIN OF ty_abap,
         success TYPE string,
         msg     TYPE string,
         matnr   TYPE matnr,
       END OF ty_abap.

* JSON-Quelldaten
DATA: lv_json_response TYPE string VALUE '{"success":true,"msg":"Ok.","matnr":0000001234}'.
DATA: ls_abap TYPE ty_abap.

cl_fdt_json=>json_to_data( EXPORTING iv_json = lv_json_response
                           CHANGING  ca_data = ls_abap ).

cl_demo_output=>write_data( lv_json_response ).
cl_demo_output=>write_data( ls_abap ).
cl_demo_output=>display( ).

VAriante 3 (cl_clb_parse_json)

* ABAP Zieldatentyp
TYPES: BEGIN OF ty_abap,
         success TYPE string,
         msg     TYPE string,
         matnr   TYPE matnr,
       END OF ty_abap.

TRY.
* JSON-Quelldaten
    DATA(lv_json_response) = CONV string( '{"success":"true","msg":"Ok.","matnr":"0000001234"}' ).

* JSON nach XSTRING (UTF-8) konvertieren
    DATA(lvx_string) = cl_abap_codepage=>convert_to( lv_json_response ).
* XSTRING nach string wandeln
    DATA(lv_utf8) = cl_clb_tools=>xstring_to_string( lvx_string ).

* JSON->ABAP
    DATA(o_json) = NEW cl_clb_parse_json( ).
    DATA: ls_abap TYPE ty_abap.

    o_json->json_to_data( EXPORTING iv_json = lv_utf8
                          CHANGING c_data   = ls_abap ).

    cl_demo_output=>write_data( lv_json_response ).
    cl_demo_output=>write_data( ls_abap ).
    cl_demo_output=>display( ).
  CATCH cx_root INTO DATA(e_txt).
    MESSAGE e_txt->get_text( ) TYPE 'S' DISPLAY LIKE 'E'.
ENDTRY.