[ABAP] Komplexbeispiel: Binärdaten Screenshot mit GZIP komprimieren, in Base64-String wandeln und zurück (CL_ABAP_GZIP, SSFC_BASE64_ENCODE, SSFC_BASE64_DECODE)

TRY.
    DATA: lv_mime_type TYPE string.
    DATA: lv_image_bytes TYPE xstring.

* Ein paar Bytes holen: Screenshot aufnehmen
    cl_gui_frontend_services=>get_screenshot( IMPORTING
                                                mime_type_str = lv_mime_type
                                                image         = lv_image_bytes ).

    DATA: lv_xstr_gzip TYPE xstring.

* Binärdaten mit GZIP komprimieren
    cl_abap_gzip=>compress_binary( EXPORTING raw_in   = lv_image_bytes
                                   IMPORTING gzip_out = lv_xstr_gzip ).

    DATA(lv_base64_data) = ||.

* Base64 codieren
    CALL FUNCTION 'SSFC_BASE64_ENCODE'
      EXPORTING
        bindata                  = lv_xstr_gzip
      IMPORTING
        b64data                  = lv_base64_data
      EXCEPTIONS
        ssf_krn_error            = 1
        ssf_krn_noop             = 2
        ssf_krn_nomemory         = 3
        ssf_krn_opinv            = 4
        ssf_krn_input_data_error = 5
        ssf_krn_invalid_par      = 6
        ssf_krn_invalid_parlen   = 7
        OTHERS                   = 8.
    IF sy-subrc = 0.

* Base64-String in der Listenausgabe darstellen
      DATA: it_text80 TYPE STANDARD TABLE OF text80 WITH DEFAULT KEY.
* formatierte Ausgabe (80 Zeichen Breite)
      CALL FUNCTION 'SWA_STRING_TO_TABLE'
        EXPORTING
          character_string = lv_base64_data
        IMPORTING
          character_table  = it_text80.

      LOOP AT it_text80 ASSIGNING FIELD-SYMBOL(<t>).
        WRITE: / <t>.
      ENDLOOP.

      DATA: lv_xstr_dec TYPE xstring.

* Base64 decodieren
      CALL FUNCTION 'SSFC_BASE64_DECODE'
        EXPORTING
          b64data                  = lv_base64_data
        IMPORTING
          bindata                  = lv_xstr_dec
        EXCEPTIONS
          ssf_krn_error            = 1
          ssf_krn_noop             = 2
          ssf_krn_nomemory         = 3
          ssf_krn_opinv            = 4
          ssf_krn_input_data_error = 5
          ssf_krn_invalid_par      = 6
          ssf_krn_invalid_parlen   = 7
          OTHERS                   = 8.

      IF sy-subrc = 0.
        DATA: lv_pic_bytes TYPE xstring.

* Binärdaten mit GZIP dekomprimieren
        cl_abap_gzip=>decompress_binary( EXPORTING gzip_in = lv_xstr_dec IMPORTING raw_out = lv_pic_bytes ).

* freier Custom-Container innerhalb der Listenansicht
        DATA(o_cnt) = NEW cl_gui_custom_container( container_name = ''
                                                   repid          = 'SAPMSSY0'
                                                   dynnr          = '0120' ).

* Position des Containers setzen
        o_cnt->set_top( 50 ).
        o_cnt->set_left( 50 ).
        o_cnt->set_width( 640 ).
        o_cnt->set_height( 240 ).

* Bild über die URL laden und anzeigen
        DATA(o_pic) = NEW cl_gui_picture( parent = o_cnt ).
        o_pic->set_display_mode( display_mode = cl_gui_picture=>display_mode_stretch ).

* xstring -> solix
        DATA(it_bin_data) = cl_bcs_convert=>xstring_to_solix( lv_pic_bytes ).

        DATA: lv_url TYPE swk_url.

* temporäre URL für das Bild erzeugen
        CALL FUNCTION 'DP_CREATE_URL'
          EXPORTING
            type                 = 'image/jpeg' " https://wiki.selfhtml.org/wiki/Referenz:MIME-Typen
            subtype              = ''
          TABLES
            data                 = it_bin_data
          CHANGING
            url                  = lv_url
          EXCEPTIONS
            dp_invalid_parameter = 1
            dp_error_put_table   = 2
            dp_error_general     = 3
            OTHERS               = 4.

* Bild von URL laden
        o_pic->load_picture_from_url_async( lv_url ).

      ENDIF.
    ENDIF.

  CATCH cx_root INTO DATA(e_txt).
    WRITE: / e_txt->get_text( ).
ENDTRY.

[ABAP] SAP Smart Forms: XSF Utilities – BDS Grafik (Formulargrafik) holen und anzeigen

TRY.
* Holt Formulargrafiken, die mit der SE78 eingerichtet wurden
    DATA(lv_xstr) = cl_ssf_xsf_utilities=>get_bds_graphic_as_bmp( p_object = 'GRAPHICS'
                                                                  p_name   = 'ENJOY'
                                                                  p_id     = 'BMAP'
                                                                  p_btype  = 'BCOL' ). " BMON	- Rasterbild schwarz-weiß, BCOL	- Rasterbild Farbe

* freier Custom-Container innerhalb der Listenansicht
    DATA(o_cnt) = NEW cl_gui_custom_container( container_name = ''
                                               repid          = 'SAPMSSY0'
                                               dynnr          = '0120' ).

* Position des Containers setzen
    o_cnt->set_top( 50 ).
    o_cnt->set_left( 50 ).
    o_cnt->set_width( 640 ).
    o_cnt->set_height( 240 ).

* Bild über die URL laden und anzeigen
    DATA(o_pic) = NEW cl_gui_picture( parent = o_cnt ).
    o_pic->set_display_mode( display_mode = cl_gui_picture=>display_mode_stretch ).

* xstring -> solix
    DATA(it_bin_data) = cl_bcs_convert=>xstring_to_solix( lv_xstr ).

    DATA: lv_url TYPE swk_url.

* temporäre URL für das Bild erzeugen
    CALL FUNCTION 'DP_CREATE_URL'
      EXPORTING
        type                 = 'image/jpeg' " https://wiki.selfhtml.org/wiki/Referenz:MIME-Typen
        subtype              = ''
      TABLES
        data                 = it_bin_data
      CHANGING
        url                  = lv_url
      EXCEPTIONS
        dp_invalid_parameter = 1
        dp_error_put_table   = 2
        dp_error_general     = 3
        OTHERS               = 4.

* Bild von URL laden
    o_pic->load_picture_from_url_async( lv_url ).

    WRITE: / 'Test.'.
  CATCH cx_root INTO DATA(e_txt).
    WRITE: / e_txt->get_text( ).
ENDTRY.

[ABAP] Infos (Header + Interface) zu einem Funktionsbaustein lesen

* https://wiki.scn.sap.com/wiki/display/ABAP/Extracting+Function+Module+Details+using+Class+-+CL_FB_FUNCTION_UTILITY
TRY.
    DATA: lv_fm_name TYPE eu_lname VALUE 'BAPI_MATERIAL_GET_ALL'.

* Header des FB lesen
    DATA: lv_head TYPE header_fb.

    cl_fb_function_utility=>meth_get_header_fb( EXPORTING im_name   = lv_fm_name
                                                IMPORTING ex_header = lv_head ).

    cl_demo_output=>write_data( lv_head-name ).
    cl_demo_output=>write_data( lv_head-stext ).
    cl_demo_output=>write_data( lv_head-area ).
    cl_demo_output=>write_data( lv_head-progname ).

* Interface des FB lesen
    DATA: lv_interface TYPE rsfbintfv.

    cl_fb_function_utility=>meth_get_interface( EXPORTING im_name      = lv_fm_name
                                                IMPORTING ex_interface = lv_interface ).

    cl_demo_output=>write_data( lv_interface-import ).
    cl_demo_output=>write_data( lv_interface-export ).
    cl_demo_output=>write_data( lv_interface-change ).
    cl_demo_output=>write_data( lv_interface-tables ).
    cl_demo_output=>write_data( lv_interface-except ).
    cl_demo_output=>write_data( lv_interface-paramtext ).
    cl_demo_output=>write_data( lv_interface-source ).
    cl_demo_output=>write_data( lv_interface-interface ).
    cl_demo_output=>write_data( lv_interface-oparam ).
    cl_demo_output=>write_data( lv_interface-nparam ).
    cl_demo_output=>write_data( lv_interface-fparam ).
    cl_demo_output=>write_data( lv_interface-opdocu ).
    cl_demo_output=>write_data( lv_interface-npdocu ).
    cl_demo_output=>write_data( lv_interface-stub ).
    cl_demo_output=>write_data( lv_interface-frparam ).
    cl_demo_output=>write_data( lv_interface-enhanceparam ).
    cl_demo_output=>write_data( lv_interface-enhancedocu ).

* Anzeige
    cl_demo_output=>display( ).

  CATCH cx_root INTO DATA(e_txt).
    WRITE: / e_txt->get_text( ).
ENDTRY.

[ABAP] Konstanten für gängige MIME-Typen (IF_REST_MEDIA_TYPE, CL_FXS_MIME_TYPES)

Variante 1 (IF_REST_MEDIA_TYPE)

Konstante                       MIME-Typ
--------------------------------------------------------------
gc_all                          '*/*'
gc_appl_all                     'application/*'
gc_appl_xml                     'application/xml'
gc_appl_xhtml_xml               'application/xhtml+xml'
gc_appl_atom_xml                'application/atom+xml'
gc_appl_atom_xml_feed           'application/atom+xml;type=feed'
gc_appl_atom_xml_entry          'application/atom+xml;type=entry'
gc_appl_atomcat_xml             'application/atomcat+xml'
gc_appl_atomsvc_xml             'application/atomsvc+xml'
gc_appl_opensearch_descr_xml    'application/opensearchdescription+xml'
gc_appl_all_xml                 'application/*+xml'
gc_appl_java                    'application/java'
gc_appl_java_archive            'application/java-archive'
gc_appl_json                    'application/json'
gc_appl_json_odata_verbose      'application/json;odata=verbose'
gc_appl_mac_binhex40            'application/mac-binhex40'
gc_appl_mathml_xml              'application/mathml+xml'
gc_appl_msword                  'application/msword'
gc_appl_octet_stream            'application/octet-stream'
gc_appl_onenote                 'application/onenote'
gc_appl_pdf                     'application/pdf'
gc_appl_postscript              'application/postscript'
gc_appl_rdf_xml                 'application/rdf+xml'
gc_appl_relax_ng_compact_synt   'application/relax-ng-compact-syntax'
gc_appl_rss_xml                 'application/rss+xml'
gc_appl_rtf                     'application/rtf'
gc_appl_sparql_results_json     'application/sparql-results+json'
gc_appl_sparql_results_xml      'application/sparql-results+xml'
gc_appl_trix                    'application/trix'
gc_appl_vnd_google_earthkmlxml  'application/vndgoogle-earthkml+xml'
gc_appl_vnd_google_earth_kmz    'application/vndgoogle-earthkmz'
gc_appl_vnd_mozilla_xul_xml     'application/vndmozillaxul+xml'
gc_appl_vnd_ms_cab_compressed   'application/vndms-cab-compressed'
gc_appl_vnd_ms_excel            'application/vndms-excel'
gc_appl_vnd_ms_powerpoint       'application/vndms-powerpoint'
gc_appl_vnd_ms_project          'application/vndms-project'
gc_appl_vnd_sun_wadl_xml        'application/vndsunwadl+xml'
gc_appl_voicexml_xml            'application/voicexml+xml'
gc_appl_zip                     'application/zip'
gc_audio_all                    'audio/*'
gc_audio_basic                  'audio/basic'
gc_audio_midi                   'audio/midi'
gc_audio_mpeg                   'audio/mpeg'
gc_image_all                    'image/*'
gc_image_bmp                    'image/bmp'
gc_image_gif                    'image/gif'
gc_image_jpeg                   'image/jpeg'
gc_image_png                    'image/png'
gc_image_svg_xml                'image/svg+xml'
gc_image_tiff                   'image/tiff'
gc_message_all                  'message/*'
gc_model_all                    'model/*'
gc_model_vrml                   'model/vrml'
gc_multipart_all                'multipart/*'
gc_multipart_form_data          'multipart/form-data'
gc_text_all                     'text/*'
gc_text_calendar                'text/calendar'
gc_text_css                     'text/css'
gc_text_csv                     'text/csv'
gc_text_html                    'text/html'
gc_text_javascript              'text/javascript'
gc_text_n_triples               'text/n-triples'
gc_text_n3                      'text/n3'
gc_text_plain                   'text/plain'
gc_text_tab_separated_values    'text/tab-separated-values'
gc_text_uri_list                'text/uri-list'
gc_video_all                    'video/*'
gc_video_mp4                    'video/mp4'
gc_video_mpeg                   'video/mpeg'
gc_video_quicktime              'video/quicktime'
gc_appl_www_form_url_encoded    'application/x-www-form-urlencoded'
gc_multipart_mixed              'multipart/mixed'
gc_appl_http                    'application/http'

Variante 2 (CL_FXS_MIME_TYPES)

Konstante                           MIME-Typ
--------------------------------------------------------------
CL_FXS_MIME_TYPES=>CO_BINARY        'application/octet-stream'
CL_FXS_MIME_TYPES=>CO_PDF           'application/pdf'
CL_FXS_MIME_TYPES=>CO_IMAGE_BITMAP  'image/x-ms-bmp'
CL_FXS_MIME_TYPES=>CO_IMAGE_PNG     'image/png'
CL_FXS_MIME_TYPES=>CO_IMAGE_GIF     'image/gif'
CL_FXS_MIME_TYPES=>CO_IMAGE_TIFF    'image/tiff'
CL_FXS_MIME_TYPES=>CO_IMAGE_JPEG    'image/jpeg'

[ABAP] Klasse zur Verarbeitung von Binärdaten (binary streams)

TRY.
* Beispieldaten
    DATA: lv_xstr TYPE xstring VALUE 'FF000000'.
    WRITE: / 'STREAM:', lv_xstr.

* Binary stream
    DATA(o_stream) = NEW cl_fxs_binary_stream( mv_byteorder = cl_fxs_binary_stream=>co_byteorder_little
                                               mv_data      = lv_xstr ).

* Länge
    DATA(lv_len) = o_stream->get_length( ).
    WRITE: / 'Länge:', lv_len.
* Byteorder
    WRITE: / 'Byteorder:', o_stream->get_byteorder( ).

    IF lv_len > 0.
* 1 Byte lesen
      WRITE: / 'BYTE:', o_stream->read_byte( iv_offset = 0 ).
* Int lesen
      WRITE: / 'INT:', o_stream->read_int( iv_offset = 0 ).
* Short lesen
      WRITE: / 'SHORT:', o_stream->read_short( iv_offset = 0 ).
* WORD lesen
      WRITE: / 'WORD:', o_stream->read_word( iv_offset = 0 ).
* 1 DWORD (4 Bytes) lesen, ahängig der Byteorder
      WRITE: / 'DWORD:', o_stream->read_dword( iv_offset = 0 ).
* Datenzeiger auf Byte 4 setzen
      o_stream->seek_to( 3 ).
* Byte schreiben
      WRITE: / 'Byte 4 schreiben:', 32.
      o_stream->write_byte( iv_offset = 0
                            iv_value  = 32 ).
* Byte-Sequenz lesen
      WRITE: / 'BYTE-Sequenz (Byte 3 und 4):', o_stream->read_byteseq( iv_offset = -1
                                                                       iv_len    = 2 ).
    ENDIF.

  CATCH cx_root INTO DATA(e_txt).
    WRITE: / e_txt->get_text( ).
ENDTRY.

[ABAP] Interne Tabelle als Excel-Datei (*.xlsx) speichern (cl_fdt_xl_spreadsheet)

* Mit Hilfe der Klasse cl_fdt_xl_spreadsheet können über XML-Transformationen
* Daten aus SAP in XLSX-Dateien geschrieben werden
TRY.
* Testdaten lesen
    SELECT * FROM t001 INTO TABLE @DATA(it_t001).

    IF sy-subrc = 0.
* Header erzeugen
      DATA: it_columns TYPE if_fdt_doc_spreadsheet=>t_column.
      DATA: lv_head TYPE t001.
      DATA(o_desc) = CAST cl_abap_structdescr( cl_abap_structdescr=>describe_by_data( lv_head ) ).

      LOOP AT o_desc->get_components( ) ASSIGNING FIELD-SYMBOL(<c>).
        IF <c> IS ASSIGNED.
          IF <c>-type->kind = cl_abap_typedescr=>kind_elem.
            APPEND VALUE #( id           = sy-tabix
                            name         = <c>-name
                            display_name = <c>-name
                            is_result    = abap_true
                            type         = <c>-type ) TO it_columns.
          ENDIF.
        ENDIF.
      ENDLOOP.

* itab + header -> XML -> xstring
* Achtung: Speicherintensiv und rel. langsam! Es sollten keine großen Datenmengen verarbeitet werden.
      DATA(lv_bin_data) = cl_fdt_xl_spreadsheet=>if_fdt_doc_spreadsheet~create_document( columns      = it_columns " optional
                                                                                         itab         = REF #( it_t001 )
                                                                                         iv_call_type = if_fdt_doc_spreadsheet=>gc_call_dec_table ).
      IF xstrlen( lv_bin_data ) > 0.
        DATA: lv_action TYPE i.
        DATA: lv_filename TYPE string.
        DATA: lv_fullpath TYPE string.
        DATA: lv_path TYPE string.

* Save-Dialog
        cl_gui_frontend_services=>file_save_dialog( EXPORTING
                                                      default_file_name = 'Excel.xlsx'
                                                      default_extension = 'xlsx'
                                                      file_filter       = |Excel-Datei (*.xlsx)\|*.xlsx\|{ cl_gui_frontend_services=>filetype_all }|
                                                    CHANGING
                                                      filename          = lv_filename
                                                      path              = lv_path
                                                      fullpath          = lv_fullpath
                                                      user_action       = lv_action ).

        IF lv_action EQ cl_gui_frontend_services=>action_ok.
* XSTRING -> SOLIX (RAW)
          DATA(it_raw_data) = cl_bcs_convert=>xstring_to_solix( EXPORTING iv_xstring = lv_bin_data ).

* Datei lokal speichern
          cl_gui_frontend_services=>gui_download( EXPORTING
                                                    filename     = lv_fullpath
                                                    filetype     = 'BIN'
                                                    bin_filesize = xstrlen( lv_bin_data )
                                                  CHANGING
                                                    data_tab     = it_raw_data ).


        ENDIF.
      ENDIF.
    ENDIF.
  CATCH cx_root INTO DATA(e_text).
    MESSAGE e_text->get_text( ) TYPE 'I'.
ENDTRY.

[ABAP] Excel-Datei (*.xlsx) in interne Tabelle laden (cl_fdt_xl_spreadsheet)

Variante 1 (generische Ausgabe mit cl_demo_output)

* Mit Hilfe der Klasse cl_fdt_xl_spreadsheet können über XML-Transformationen
* aus XLSX-Dateien Daten extrahiert und in eine interne Tabelle konvertiert werden
TRY.
    DATA: lv_rc TYPE i.
    DATA: it_files TYPE filetable.
    DATA: lv_action TYPE i.

* FileOpen-Dialog aufrufen
    cl_gui_frontend_services=>file_open_dialog( EXPORTING
                                                  file_filter = |xlsx (*.xlsx)\|*.xlsx\|{ cl_gui_frontend_services=>filetype_all }|
                                                CHANGING
                                                  file_table  = it_files
                                                  rc          = lv_rc
                                                  user_action = lv_action ).

    IF lv_action = cl_gui_frontend_services=>action_ok.
* wenn Datei ausgewählt wurde
      IF lines( it_files ) > 0.
* ersten Tabelleneintrag lesen
        DATA: lv_filesize TYPE w3param-cont_len.
        DATA: lv_filetype TYPE w3param-cont_type.
        DATA: it_bin_data TYPE w3mimetabtype.

* Bild auf Appl. Server hochladen (binary)
        cl_gui_frontend_services=>gui_upload( EXPORTING
                                                filename   = |{ it_files[ 1 ]-filename }|
                                                filetype   = 'BIN'
                                              IMPORTING
                                                filelength = lv_filesize
                                              CHANGING
                                                data_tab   = it_bin_data ).

* solix -> xstring
        DATA(lv_bin_data) = cl_bcs_convert=>solix_to_xstring( it_solix = it_bin_data ).

* Excel (itab) -> XML -> Ref-Objekt
* Achtung: Speicherintensiv und rel. langsam! Es sollten keine großen Datenmengen verarbeitet werden.
        DATA(o_excel) = NEW cl_fdt_xl_spreadsheet( document_name = CONV #( it_files[ 1 ]-filename )
                                                   xdocument     = lv_bin_data ).

        DATA: it_worksheet_names TYPE if_fdt_doc_spreadsheet=>t_worksheet_names.

* Worksheetnamen ermitteln
        o_excel->if_fdt_doc_spreadsheet~get_worksheet_names( IMPORTING worksheet_names = it_worksheet_names ).

        IF lines( it_worksheet_names ) > 0.
* erste Worksheet holen und -> REF to itab erstellen
          DATA(o_worksheet_itab) = o_excel->if_fdt_doc_spreadsheet~get_itab_from_worksheet( it_worksheet_names[ 1 ] ).

* Referenz auf generisches Feldsymbol mappen
          ASSIGN o_worksheet_itab->* TO FIELD-SYMBOL(<worksheet>).

* Datenausgabe
          cl_demo_output=>write_data( <worksheet> ).

* HTML-Daten aus itab generieren
          DATA(lv_html) = cl_demo_output=>get( ).

* Daten im Inline-Browser im SAP-Fenster anzeigen
          cl_abap_browser=>show_html( EXPORTING
                                        title        = 'Excel-Worksheet'
                                        html_string  = lv_html
                                        container    = cl_gui_container=>default_screen ).

* cl_gui_container=>default_screen erzwingen
          WRITE: space.
        ENDIF.
      ENDIF.
    ENDIF.

  CATCH cx_root INTO DATA(e_text).
    MESSAGE e_text->get_text( ) TYPE 'S' DISPLAY LIKE 'E'.
ENDTRY.

Variante 2 (generische Listausgabe)

TYPES : BEGIN OF ty_s_col_width,
          width TYPE i,
        END OF ty_s_col_width.

TYPES: ty_it_col_width TYPE STANDARD TABLE OF ty_s_col_width WITH DEFAULT KEY.

* Spaltenbreiten für Tabellenausgabe
DATA(it_col_width) = VALUE ty_it_col_width(
                                            ( width = 30 )
                                            ( width = 30 )
                                            ( width = 30 )
                                            ( width = 30 )
                                            ( width = 30 )
                                            ( width = 30 )
                                            ( width = 30 )
                                            ( width = 30 )
                                            ( width = 30 )
                                            ( width = 30 )
                                            ( width = 30 )
                                            ( width = 30 )
                                          ).

* Mit Hilfe der Klasse cl_fdt_xl_spreadsheet können über XML-Transformationen
* aus XLSX-Dateien Daten extrahiert und in eine interne Tabelle konvertiert werden
TRY.
    DATA: lv_rc TYPE i.
    DATA: it_files TYPE filetable.
    DATA: lv_action TYPE i.

* FileOpen-Dialog aufrufen
    cl_gui_frontend_services=>file_open_dialog( EXPORTING
                                                  file_filter = |xlsx (*.xlsx)\|*.xlsx\|{ cl_gui_frontend_services=>filetype_all }|
                                                CHANGING
                                                  file_table  = it_files
                                                  rc          = lv_rc
                                                  user_action = lv_action ).

    IF lv_action = cl_gui_frontend_services=>action_ok.
* wenn Datei ausgewählt wurde
      IF lines( it_files ) > 0.
* ersten Tabelleneintrag lesen
        DATA: lv_filesize TYPE w3param-cont_len.
        DATA: lv_filetype TYPE w3param-cont_type.
        DATA: it_bin_data TYPE w3mimetabtype.

* Bild auf Appl. Server hochladen (binary)
        cl_gui_frontend_services=>gui_upload( EXPORTING
                                                filename   = |{ it_files[ 1 ]-filename }|
                                                filetype   = 'BIN'
                                              IMPORTING
                                                filelength = lv_filesize
                                              CHANGING
                                                data_tab   = it_bin_data ).

* solix -> xstring
        DATA(lv_bin_data) = cl_bcs_convert=>solix_to_xstring( it_solix = it_bin_data ).

* Excel (itab) -> XML -> Ref-Objekt
* Achtung: Speicherintensiv und rel. langsam! Es sollten keine großen Datenmengen verarbeitet werden.
        DATA(o_excel) = NEW cl_fdt_xl_spreadsheet( document_name = CONV #( it_files[ 1 ]-filename )
                                                   xdocument     = lv_bin_data ).

        DATA: it_worksheet_names TYPE if_fdt_doc_spreadsheet=>t_worksheet_names.

* Worksheetnamen ermitteln
        o_excel->if_fdt_doc_spreadsheet~get_worksheet_names( IMPORTING worksheet_names = it_worksheet_names ).

        IF lines( it_worksheet_names ) > 0.
* erste Worksheet holen und -> REF to itab erstellen
          DATA(o_worksheet_itab) = o_excel->if_fdt_doc_spreadsheet~get_itab_from_worksheet( it_worksheet_names[ 1 ] ).

* Referenz auf generisches Feldsymbol mappen
          FIELD-SYMBOLS: <worksheet> TYPE ANY TABLE.
          ASSIGN o_worksheet_itab->* TO <worksheet>.

* Tabellen-Zeile erzeugen
* muss hier erfolgen, damit man ein "greifbares" Tabellen-Zeilen-Objekt
* für die Strukturermittlung (describe_by_data) hat
          DATA: o_row TYPE REF TO data.
          CREATE DATA o_row LIKE LINE OF <worksheet>.
          ASSIGN o_row->* TO FIELD-SYMBOL(<row>).

* Komponenten (Spalten) einer Tabellenzeile ermitteln
          DATA(o_struct) = CAST cl_abap_structdescr( cl_abap_typedescr=>describe_by_data( <row> ) ).
          DATA(it_comp_tab) = o_struct->get_components( ).

* Anzahl Spalten der Tabellen-Zeile holen
          DATA(lv_colcnt) = lines( it_comp_tab ).

* Worksheet durchloopen
          LOOP AT <worksheet> ASSIGNING <row>.

* Spalten der akt. Zeile durchgehen
            DO lv_colcnt TIMES.
* Zelle: n-tes Element der akt. Zeile holen
              ASSIGN COMPONENT sy-index OF STRUCTURE <row> TO FIELD-SYMBOL(<cell>).

* Trennzeichen vor die Spalte einfügen, wenn nicht 1. Spalte
              IF sy-index > 1.
                WRITE: '|'.
              ENDIF.

* Achtung: Zell-Typ beachten! Es können hier nur flache Typen (Keine Strukturen, Tabellen) ausgegeben werden, der Rest muss gesondert behandelt werden
              IF CAST cl_abap_elemdescr( it_comp_tab[ sy-index ]-type )->kind = cl_abap_elemdescr=>kind_elem.
* Ausgabe Zellinhalt mit vordefinierter Spaltenbreite
                WRITE: |{ <cell> WIDTH = it_col_width[ sy-index ]-width }|.
              ENDIF.
            ENDDO.

            NEW-LINE.
          ENDLOOP.
        ENDIF.
      ENDIF.
    ENDIF.

  CATCH cx_root INTO DATA(e_text).
    MESSAGE e_text->get_text( ) TYPE 'S' DISPLAY LIKE 'E'.
ENDTRY.

Variante 3 (generische Ausgabe im SALV-Grid)

* Mit Hilfe der Klasse cl_fdt_xl_spreadsheet können über XML-Transformationen
* aus XLSX-Dateien Daten extrahiert und in eine interne Tabelle konvertiert werden
TRY.
    DATA: lv_rc TYPE i.
    DATA: it_files TYPE filetable.
    DATA: lv_action TYPE i.

* FileOpen-Dialog aufrufen
    cl_gui_frontend_services=>file_open_dialog( EXPORTING
                                                  file_filter = |xlsx (*.xlsx)\|*.xlsx\|{ cl_gui_frontend_services=>filetype_all }|
                                                CHANGING
                                                  file_table  = it_files
                                                  rc          = lv_rc
                                                  user_action = lv_action ).

    IF lv_action = cl_gui_frontend_services=>action_ok.
* wenn Datei ausgewählt wurde
      IF lines( it_files ) > 0.
* ersten Tabelleneintrag lesen
        DATA: lv_filesize TYPE w3param-cont_len.
        DATA: lv_filetype TYPE w3param-cont_type.
        DATA: it_bin_data TYPE w3mimetabtype.

* Bild auf Appl. Server hochladen (binary)
        cl_gui_frontend_services=>gui_upload( EXPORTING
                                                filename   = |{ it_files[ 1 ]-filename }|
                                                filetype   = 'BIN'
                                              IMPORTING
                                                filelength = lv_filesize
                                              CHANGING
                                                data_tab   = it_bin_data ).

* solix -> xstring
        DATA(lv_bin_data) = cl_bcs_convert=>solix_to_xstring( it_solix = it_bin_data ).

* Excel (itab) -> XML -> Ref-Objekt
* Achtung: Speicherintensiv und rel. langsam! Es sollten keine großen Datenmengen verarbeitet werden.
        DATA(o_excel) = NEW cl_fdt_xl_spreadsheet( document_name = CONV #( it_files[ 1 ]-filename )
                                                   xdocument     = lv_bin_data ).

        DATA: it_worksheet_names TYPE if_fdt_doc_spreadsheet=>t_worksheet_names.

* Worksheetnamen ermitteln
        o_excel->if_fdt_doc_spreadsheet~get_worksheet_names( IMPORTING worksheet_names = it_worksheet_names ).

        IF lines( it_worksheet_names ) > 0.
* erste Worksheet holen und -> REF to itab erstellen
          DATA(o_worksheet_itab) = o_excel->if_fdt_doc_spreadsheet~get_itab_for_alv_update( ).

* Referenz auf generisches Feldsymbol mappen
          ASSIGN o_worksheet_itab->* TO FIELD-SYMBOL(<worksheet>).

          TRY.
* SALV-Table
              DATA: o_salv TYPE REF TO cl_salv_table.

              cl_salv_table=>factory( IMPORTING
                                        r_salv_table   = o_salv
                                      CHANGING
                                        t_table        = <worksheet> ).

* Grundeinstellungen
              o_salv->get_functions( )->set_all( abap_true ).
              o_salv->get_columns( )->set_optimize( abap_true ).
              o_salv->get_display_settings( )->set_list_header( 'Worksheet' ).
              o_salv->get_display_settings( )->set_striped_pattern( abap_true ).
              o_salv->get_selections( )->set_selection_mode( if_salv_c_selection_mode=>row_column ).

* Spaltenüberschriften: technischer Name und Beschreibungstexte
              LOOP AT o_salv->get_columns( )->get( ) ASSIGNING FIELD-SYMBOL(<c>).
                DATA(o_col) = <c>-r_column.
                o_col->set_short_text( || ).
                o_col->set_medium_text( || ).
                o_col->set_long_text( |{ o_col->get_columnname( ) }| ).
              ENDLOOP.

              o_salv->display( ).
            CATCH cx_root INTO DATA(e_txt).
              WRITE: / e_txt->get_text( ).
          ENDTRY.
        ENDIF.
      ENDIF.
    ENDIF.

  CATCH cx_root INTO DATA(e_text).
    MESSAGE e_text->get_text( ) TYPE 'S' DISPLAY LIKE 'E'.
ENDTRY.

[ABAP] Eclipse-ADT Codeschnipsel für Methoden-Signatur

* <SIGNATURE>---------------------------------------------------------------------------------------+
* | Public Method methodname - Text1
* |                            Text2
* |                            Text3
* +-------------------------------------------------------------------------------------------------+
* | [--->] i_var1  - Text1
* | [--->] i_var2  - Text2
* | [<---] ret_var - Text3
* +--------------------------------------------------------------------------------------</SIGNATURE>