记录一次PDF文件在SAP系统内的转换(结尾附Restful接口调用) ： 表结构如下：
源代码如下：
代码语言：javascript复制*&---------------------------------------------------------------------*
*& Report ZPDF_DEMO.
*&---------------------------------------------------------------------*
*&
*&---------------------------------------------------------------------*
REPORT zpdf_demo.
CLASS lcl_event_receiver DEFINITION.
PUBLIC SECTION.
METHODS:
handle_button_click
FOR EVENT button_click OF cl_gui_alv_grid
IMPORTING es_col_id es_row_no.
ENDCLASS.
CLASS lcl_event_receiver IMPLEMENTATION.
METHOD handle_button_click.
PERFORM button_click USING es_col_id es_row_no.
ENDMETHOD.
ENDCLASS.
CONSTANTS:gc_status TYPE slis_formname VALUE 'FRM_STATUS',
gc_command TYPE slis_formname VALUE 'FRM_COMMAND'.
DATA:BEGIN OF gs_data.
: INCLUDE TYPE zbct_app_pdf."定义结构
DATA: icon TYPE c LENGTH 10,
box,
cellstyle TYPE lvc_t_styl. "单元格编辑
DATA:END OF gs_data,
gt_data LIKE TABLE OF gs_data,
gv_file_cat TYPE zbct_app_pdf-file_cat VALUE 'HELP'.
DATA:gv_title TYPE text100. "标题
DATA:gs_lay TYPE lvc_s_layo.
DATA:gt_fieldcat TYPE lvc_t_fcat,
gs_fieldcat TYPE lvc_s_fcat.
DATA:gt_event TYPE slis_t_event,
gs_event LIKE LINE OF gt_event.
DATA:gs_sort_lvc TYPE lvc_s_sort,
gt_sort_lvc TYPE lvc_t_sort.
DATA gv_grid TYPE REF TO cl_gui_alv_grid.
DATA gv_event_receiver TYPE REF TO lcl_event_receiver.
START-OF-SELECTION.
PERFORM frm_data_get. "数据读取
END-OF-SELECTION.
PERFORM frm_alv_dis. "alv展示
*&---------------------------------------------------------------------*
*& Form FRM_DATA_GET
*&---------------------------------------------------------------------*
*& text
*&---------------------------------------------------------------------*
*& --> p1 text
*& <-- p2 text
*&---------------------------------------------------------------------*
FORM frm_data_get.
DATA:lv_stylerow TYPE lvc_s_styl,
lv_icon TYPE icons-text.
SELECT *
INTO CORRESPONDING FIELDS OF TABLE gt_data
FROM zbct_app_pdf
WHERE file_cat = gv_file_cat.
" 创建按钮图标
CALL FUNCTION 'ICON_CREATE'
EXPORTING
name = 'ICON_ICON_LIST'
text = '展示'
info = 'PDF展示'
add_stdinf = 'X'
IMPORTING
result = lv_icon
EXCEPTIONS
icon_not_found = 1
outputfield_too_short = 2
OTHERS = 3.
" 增加按钮
LOOP AT gt_data INTO gs_data.
lv_stylerow-fieldname = 'ICON'.
lv_stylerow-style = cl_gui_alv_grid=>mc_style_button.
APPEND lv_stylerow TO gs_data-cellstyle.
gs_data-icon = lv_icon.
MODIFY gt_data FROM gs_data.
ENDLOOP.
ENDFORM.
*&---------------------------------------------------------------------*
*& Form FRM_ALV_DIS
*&---------------------------------------------------------------------*
*& text
*&---------------------------------------------------------------------*
*& --> p1 text
*& <-- p2 text
*&---------------------------------------------------------------------*
FORM frm_alv_dis .
PERFORM frm_layout_set.
PERFORM frm_field_set .
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY_LVC'
EXPORTING
i_callback_program = sy-repid
i_callback_pf_status_set = gc_status
i_callback_user_command = gc_command
is_layout_lvc = gs_lay
it_fieldcat_lvc = gt_fieldcat[]
it_sort_lvc = gt_sort_lvc[]
i_save = 'A'
it_events = gt_event
TABLES
t_outtab = gt_data[]
EXCEPTIONS
program_error = 1
OTHERS = 2.
IF sy-subrc <> 0.
* IMPLEMENT SUITABLE ERROR HANDLING HERE
ENDIF.
ENDFORM.
*&---------------------------------------------------------------------*
*& FORM FRM_LAYOUT_SET
*&---------------------------------------------------------------------*
*& TEXT
*&---------------------------------------------------------------------*
*& --> P1 TEXT
*& <-- P2 TEXT
*&---------------------------------------------------------------------*
FORM frm_layout_set .
gs_lay-cwidth_opt = abap_true.
gs_lay-box_fname = 'BOX'. "标识是否选中
gs_lay-stylefname = 'CELLSTYLE'. "单元格编辑
ENDFORM.
*&---------------------------------------------------------------------*
*& FORM FRM_FIELD_SET
*&---------------------------------------------------------------------*
*& TEXT
*&---------------------------------------------------------------------*
*& --> P1 TEXT
*& <-- P2 TEXT
*&---------------------------------------------------------------------*
FORM frm_field_set.
DATA:lv_event LIKE LINE OF gt_event.
" 增加按钮事件
gs_event-name = 'CALLER_EXIT'.
gs_event-form = 'FRM_BUTTON'.
APPEND gs_event TO gt_event.
" Fieldcat
DEFINE add_field.
CLEAR: gs_fieldcat.
gs_fieldcat-fieldname = &1.
gs_fieldcat-scrtext_l = &2.
gs_fieldcat-outputlen = &3.
gs_fieldcat-ref_field = &4.
gs_fieldcat-ref_table = &5.
APPEND gs_fieldcat TO gt_fieldcat.
end-of-definition.
add_field: 'FILE_NAME' '文件名' '' '' '',
'ICON' 'PDF展示' '' '' '',
'CREATED_DATE' '创建日期' '' '' '',
'CREATED_TIME' '创建时间' '' '' '',
'CREATED_USER' '创建用户' '' '' ''.
ENDFORM.
*&---------------------------------------------------------------------*
*& FORM FRM_STATUS
*&---------------------------------------------------------------------*
*& TEXT
*&---------------------------------------------------------------------*
*& --> P1 TEXT
*& <-- P2 TEXT
*&---------------------------------------------------------------------*
FORM frm_status USING p_extab TYPE slis_t_extab.
SET PF-STATUS 'ST1'."EXCLUDING lt_fcode.
SET TITLEBAR 'TI1'.
ENDFORM.
*&---------------------------------------------------------------------*
*& FORM FRM_COMMAND
*&---------------------------------------------------------------------*
*& TEXT
*&---------------------------------------------------------------------*
*& --> P1 TEXT
*& <-- P2 TEXT
*&---------------------------------------------------------------------*
FORM frm_command USING p_ucomm TYPE sy-ucomm
ps_selfield TYPE slis_selfield.
DATA: lo_grid TYPE REF TO cl_gui_alv_grid,
lv_code LIKE sy-ucomm.
lv_code = p_ucomm.
CLEAR:p_ucomm.
ps_selfield-refresh = 'X'.
CASE lv_code.
WHEN 'ADD'. " 新增PDF
PERFORM frm_upload_file.
PERFORM frm_data_get. " 数据读取
WHEN 'DEL'. " 删除PDF
LOOP AT gt_data INTO gs_data WHERE box = 'X'.
PERFORM frm_file_delete USING gs_data-guid.
ENDLOOP.
IF sy-subrc NE 0.
MESSAGE '请选择行' TYPE 'S' DISPLAY LIKE 'E'.
EXIT.
ELSE.
PERFORM frm_data_get. "数据读取
ENDIF.
ENDCASE.
*刷新alv屏幕数据
CALL FUNCTION 'GET_GLOBALS_FROM_SLVC_FULLSCR'
IMPORTING
e_grid = lo_grid.
* CALL METHOD lo_grid->refresh_table_display.
ENDFORM.
*&---------------------------------------------------------------------*
*& FORM FRM_BUTTON
*&---------------------------------------------------------------------*
*& TEXT
*&---------------------------------------------------------------------*
*& --> P1 TEXT
*& <-- P2 TEXT
*&---------------------------------------------------------------------*
FORM frm_button USING e_grid TYPE slis_data_caller_exit.
CALL FUNCTION 'GET_GLOBALS_FROM_SLVC_FULLSCR'
IMPORTING
e_grid = gv_grid.
CREATE OBJECT gv_event_receiver. " 创建按钮事件
SET HANDLER gv_event_receiver->handle_button_click FOR gv_grid.
ENDFORM.
*&---------------------------------------------------------------------*
*& FORM BUTTON_CLICK
*&---------------------------------------------------------------------*
*& TEXT
*&---------------------------------------------------------------------*
*& --> P1 TEXT
*& <-- P2 TEXT
*&---------------------------------------------------------------------*
FORM button_click USING p_col_id
p_row_no TYPE lvc_s_roid.
READ TABLE gt_data INTO gs_data INDEX p_row_no-row_id.
IF sy-subrc = 0.
PERFORM frm_show_pdf USING gs_data-guid.
ENDIF.
ENDFORM.
*&---------------------------------------------------------------------*
*& Form frm_upload_file
*&---------------------------------------------------------------------*
*& text
*&---------------------------------------------------------------------*
*& --> p1 text
*& <-- p2 text
*&---------------------------------------------------------------------*
FORM frm_upload_file .
DATA:ev_name TYPE string,
ct_filetable TYPE filetable,
cv_rc TYPE i,
ev_filetype TYPE char10,
cv_uact TYPE i,
iv_bin_filesize TYPE i,
lt_datatab TYPE TABLE OF ssfdata,
iv_buffer TYPE xstring,
lt_app_pdf TYPE TABLE OF zbct_app_pdf.
ev_filetype = 'BIN'.
CONCATENATE '*' '.pdf' INTO ev_name.
" 打开pdf.
CALL METHOD cl_gui_frontend_services=>file_open_dialog
EXPORTING
default_filename = ev_name
CHANGING
file_table = ct_filetable
rc = cv_rc
user_action = cv_uact
EXCEPTIONS
file_open_dialog_failed = 1
cntl_error = 2
error_no_gui = 3.
IF cv_uact = cl_gui_frontend_services=>action_cancel.
EXIT.
ENDIF.
" 读取路径
READ TABLE ct_filetable INDEX 1 INTO ev_name.
CHECK sy-subrc = 0.
" 文件名称
SPLIT ev_name AT '' INTO TABLE DATA(lt_split).
DATA(lv_line) = lines( lt_split ).
READ TABLE lt_split INTO DATA(lv_split) INDEX lv_line.
" 上载
CALL FUNCTION 'GUI_UPLOAD'
EXPORTING
filename = ev_name
filetype = ev_filetype
IMPORTING
filelength = iv_bin_filesize
TABLES
data_tab = lt_datatab
EXCEPTIONS
file_open_error = 1
file_read_error = 2
invalid_type = 3
no_batch = 4
OTHERS = 5.
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
LEAVE PROGRAM.
ENDIF.
" 转换为二进制
CALL FUNCTION 'SCMS_BINARY_TO_XSTRING'
EXPORTING
input_length = iv_bin_filesize
IMPORTING
buffer = iv_buffer
TABLES
binary_tab = lt_datatab
EXCEPTIONS
failed = 1
OTHERS = 2.
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
EXIT.
ENDIF.
TRY.
CALL METHOD cl_system_uuid=>create_uuid_x16_static
RECEIVING
uuid = DATA(lv_guid). "唯一标识
CATCH cx_uuid_error.
ENDTRY.
" 存表
APPEND VALUE #( guid = lv_guid
file_name = lv_split
file_cat = gv_file_cat
file_content = iv_buffer
created_date = sy-datum
created_time = sy-uzeit
created_user = sy-uname ) TO lt_app_pdf.
MODIFY zbct_app_pdf FROM TABLE lt_app_pdf.
ENDFORM.
*&---------------------------------------------------------------------*
*& Form frm_file_delete
*&---------------------------------------------------------------------*
*& text
*&---------------------------------------------------------------------*
*& --> p1 text
*& <-- p2 text
*&---------------------------------------------------------------------*
FORM frm_file_delete USING ps_data_guid.
DATA:lv_answer TYPE c.
CALL FUNCTION 'POPUP_TO_CONFIRM'
EXPORTING
titlebar = '删除PDF'
text_question = '将删除选中PDF内容,请确认！'
text_button_1 = '是'
* ICON_BUTTON_1 = ' '
text_button_2 = '否'
* ICON_BUTTON_2 = ' '
default_button = '1'
start_column = 25
start_row = 6
IMPORTING
answer = lv_answer
EXCEPTIONS
text_not_found = 1
OTHERS = 2.
CHECK lv_answer EQ '1'.
DELETE FROM zbct_app_pdf WHERE guid = ps_data_guid.
IF sy-subrc = 0.
MESSAGE '删除成功' TYPE 'S'.
COMMIT WORK.
ENDIF.
ENDFORM.
*&---------------------------------------------------------------------*
*& Form frm_show_pdf
*&---------------------------------------------------------------------*
*& text
*&---------------------------------------------------------------------*
*& --> GS_DATA_GUID
*&---------------------------------------------------------------------*
FORM frm_show_pdf USING ps_data_guid.
DATA: lt_datatab TYPE TABLE OF ssfdata,
ev_buffer TYPE xstring,
lv_full_name TYPE string,
lv_file_length TYPE i,
lv_temp_dir TYPE string,
lv_file_separator TYPE c LENGTH 1.
SELECT SINGLE *
FROM zbct_app_pdf
INTO @DATA(ls_app_pdf)
WHERE guid = @ps_data_guid.
IF sy-subrc NE 0.
MESSAGE '未抓取到该PDF,请检查' TYPE 'S' DISPLAY LIKE 'E'.
RETURN.
ENDIF.
ev_buffer = ls_app_pdf-file_content.
CALL FUNCTION 'SCMS_XSTRING_TO_BINARY'
EXPORTING
buffer = ev_buffer
IMPORTING
output_length = lv_file_length
TABLES
binary_tab = lt_datatab.
CLEAR lv_temp_dir.
* 获取临时目录
CALL METHOD cl_gui_frontend_services=>get_temp_directory
CHANGING
temp_dir = lv_temp_dir
EXCEPTIONS
cntl_error = 1
error_no_gui = 2
not_supported_by_gui = 3
OTHERS = 4.
cl_gui_cfw=>flush( ).
* 获取文件路径分隔符
CLEAR lv_file_separator.
CALL METHOD cl_gui_frontend_services=>get_file_separator
CHANGING
file_separator = lv_file_separator
EXCEPTIONS
not_supported_by_gui = 1
error_no_gui = 2
cntl_error = 3
OTHERS = 4.
IF sy-subrc <> 0.
lv_file_separator = '/'.
ENDIF.
* 文件全名
lv_full_name = lv_temp_dir && lv_file_separator && ls_app_pdf-file_name.
* 下载文件
CALL METHOD cl_gui_frontend_services=>gui_download
EXPORTING
bin_filesize = lv_file_length
filename = lv_full_name
filetype = 'BIN'
CHANGING
data_tab = lt_datatab
EXCEPTIONS
file_write_error = 1
no_batch = 2
gui_refuse_filetransfer = 3
invalid_type = 4
no_authority = 5
unknown_error = 6
header_not_allowed = 7
separator_not_allowed = 8
filesize_not_allowed = 9
header_too_long = 10
dp_error_create = 11
dp_error_send = 12
dp_error_write = 13
unknown_dp_error = 14
access_denied = 15
dp_out_of_memory = 16
disk_full = 17
dp_timeout = 18
file_not_found = 19
dataprovider_exception = 20
control_flush_error = 21
not_supported_by_gui = 22
error_no_gui = 23
OTHERS = 24.
IF sy-subrc <> 0.
ENDIF.
* 打开文件
CALL METHOD cl_gui_frontend_services=>execute
EXPORTING
document = lv_full_name
EXCEPTIONS
cntl_error = 1
error_no_gui = 2
bad_parameter = 3
file_not_found = 4
path_not_found = 5
file_extension_unknown = 6
error_execute_failed = 7
synchronous_failed = 8
not_supported_by_gui = 9
OTHERS = 10.
IF sy-subrc <> 0.
ENDIF.
ENDFORM.restful接口直接推出，给外围系统调用查看，源码如下
代码语言：javascript复制METHOD download_file_by_pdf.
TYPES:
BEGIN OF ty_file,
uuid TYPE string,
file_name TYPE string,
END OF ty_file.
DATA:
lt_return TYPE bapiret2_t,
lt_header TYPE tihttpnvp,
ls_header TYPE ihttpnvp,
lt_file TYPE STANDARD TABLE OF ty_file,
ls_file TYPE ty_file,
lv_json TYPE string,
lv_uuid TYPE sysuuid_c36,
lv_sysuuid_c32 TYPE sysuuid_c32,
lv_file_name TYPE string,
lv_file_content TYPE xstring,
lv_file_length TYPE i,
lv_content_type TYPE string,
lv_failed TYPE abap_bool.
* 获取文件唯一标识
lv_uuid = iv_uuid.
TRANSLATE lv_uuid TO UPPER CASE.
IF lv_uuid = 'HELP'.
SELECT *
FROM zbct_app_pdf
INTO TABLE @DATA(lt_app_pdf)
WHERE file_cat = @lv_uuid.
CLEAR lt_file.
LOOP AT lt_app_pdf INTO DATA(ls_app_pdf).
lv_sysuuid_c32 = ls_app_pdf-guid.
CALL METHOD cl_system_uuid=>convert_uuid_c32_static
EXPORTING
uuid = lv_sysuuid_c32
IMPORTING
uuid_c36 = DATA(lv_uuid_c36).
CLEAR ls_file.
ls_file-uuid = lv_uuid_c36.
TRANSLATE ls_file-uuid TO LOWER CASE.
ls_file-file_name = ls_app_pdf-file_name.
APPEND ls_file TO lt_file.
ENDLOOP.
SORT lt_file by file_name.
CLEAR lv_json.
CALL FUNCTION 'ZBC_FM_JSON_SERIALIZE'
EXPORTING
is_data = lt_file
IMPORTING
ev_json = lv_json.
server->response->set_status( code = 200 reason = 'Ok' ).
server->response->set_content_type( 'application/json' ).
server->response->set_cdata( data = lv_json ).
RETURN.
ENDIF.
* 获取文件信息
IF lv_uuid IS NOT INITIAL.
CALL METHOD cl_system_uuid=>convert_uuid_c36_static
EXPORTING
uuid = lv_uuid
IMPORTING
uuid_x16 = DATA(lv_guid).
IF lv_guid IS NOT INITIAL.
SELECT SINGLE *
FROM zbct_app_pdf
INTO @ls_app_pdf
WHERE guid = @lv_guid.
IF sy-subrc <> 0.
CLEAR ls_app_pdf.
ENDIF.
ENDIF.
IF ls_app_pdf IS INITIAL.
lv_failed = abap_true.
ENDIF.
ENDIF.
IF lv_failed IS INITIAL.
* 文件名称
lv_file_name = ls_app_pdf-file_name.
* 文件类型
lv_content_type = 'application/pdf'.
* 文件内容
lv_file_content = ls_app_pdf-file_content.
* 返回文件名称
CLEAR: lt_header, ls_header.
ls_header-name = 'content-disposition'.
ls_header-value = |outline; filename={ lv_file_name }|.
server->response->set_header_fields( lt_header ).
server->response->set_status( code = 200 reason = 'Ok' ).
server->response->set_content_type( lv_content_type ).
server->response->set_data( data = lv_file_content ).
ELSE.
server->response->set_status( code = 404 reason = '文件不存在' ).
ENDIF.
ENDMETHOD.
