1, 二维码简介
二维码又称QR Code,QR全称Quick Response,是一个近几年来移动设备上超流行的一种编码方式,它比传统的Bar Code条形码能存更多的信息,也能表示更多的数据类型。
2, 例子代码
网上看到一个关于二维码的abap程序,重新整理了一下,分享给出来,供大家参考。
注意,这个例子需要能上google.com,不能上就不能显示二维码。。。。
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|
REPORT ztest_qr_code.
DATA : bds_description LIKE bapisignat-prop_value.
* BDS handling
CONSTANTS:
c_bds_classname TYPE sbdst_classname VALUE 'DEVC_STXD_BITMAP',
c_bds_classtype TYPE sbdst_classtype VALUE 'OT', " others
c_bds_mimetype TYPE bds_mimetp VALUE 'application/octet-stream',
c_bds_original TYPE sbdst_doc_var_tg VALUE 'OR'.
* Graphic handling
CONSTANTS:
c_stdtext LIKE thead-tdobject VALUE 'TEXT',
c_graphics LIKE thead-tdobject VALUE 'GRAPHICS',
c_bmon LIKE thead-tdid VALUE 'BMON',
c_bcol LIKE thead-tdid VALUE 'BCOL'.
DATA: gi_filename TYPE rlgrap-filename,
gi_name TYPE stxbitmaps-tdname,
gi_object TYPE stxbitmaps-tdobject,
gi_id TYPE stxbitmaps-tdid,
gi_btype TYPE stxbitmaps-tdbtype,
gi_resident TYPE stxbitmaps-resident,
gi_autoheight TYPE stxbitmaps-autoheight,
gi_bmcomp TYPE stxbitmaps-bmcomp,
gi_resolution TYPE stxbitmaps-resolution,
l_extension TYPE rlgrap-filename,
l_docid TYPE stxbitmaps-docid.
"Picture Control
DATA: picture_container TYPE REF TO cl_gui_custom_container,
picture_control TYPE REF TO cl_gui_picture.
DATA : l_img_url TYPE w3url.
DATA : l_img_subtype TYPE w3param-cont_type.
DATA : l_str_length TYPE i.
DATA : url TYPE string.
DATA : l_content_length TYPE i.
DATA : mime TYPE w3mimetabtype.
DATA : blob TYPE w3mimetabtype,
blob_size TYPE w3param-cont_len,
blob_type TYPE w3param-cont_type.
DATA : i_igs_image_converter TYPE REF TO cl_igs_image_converter.
DATA : content TYPE xstring.
DATA : http_client TYPE REF TO if_http_client.
TYPES : BEGIN OF ty_binary,
binary_field(1000) TYPE c,
END OF ty_binary.
DATA : hex_tab1 TYPE TABLE OF ty_binary WITH HEADER LINE.
SELECTION-SCREEN BEGIN OF BLOCK b1 WITH FRAME TITLE text-001.
PARAMETERS : qr_text TYPE char100 OBLIGATORY.
SELECTION-SCREEN END OF BLOCK b1.
SELECTION-SCREEN BEGIN OF BLOCK b2 WITH FRAME TITLE text-002.
PARAMETERS : width TYPE int3,
height TYPE int3.
SELECTION-SCREEN END OF BLOCK b2.
PARAMETERS : p_rad1 RADIOBUTTON GROUP rd1 DEFAULT 'X',
p_rad2 RADIOBUTTON GROUP rd1.
START-OF-SELECTION.
PERFORM download_qrcode.
PERFORM convert_image.
*&---------------------------------------------------------------------*
*& Form DOWNLOAD_QRCODE
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* --> p1 text
* <-- p2 text
*----------------------------------------------------------------------*
FORM download_qrcode .
CONCATENATE
'http://chart.apis.google.com/chart?chs=200x200&cht=qr&chld=|1&chl='
qr_text
* '/chart.png'
INTO url.
CALL METHOD cl_http_client=>create_by_url
EXPORTING
url = url
IMPORTING
client = http_client
EXCEPTIONS
argument_not_found = 1
plugin_not_active = 2
internal_error = 3
OTHERS = 4.
IF sy-subrc = 0.
http_client->send( ).
http_client->receive( ).
content = http_client->response->get_data( ).
http_client->close( ).
l_str_length = xstrlen( content ).
CALL FUNCTION 'RSFO_XSTRING_TO_MIME'
EXPORTING
c_xstring = content
i_length = l_str_length
TABLES
c_t_mime = mime.
ENDIF.
ENDFORM. " DOWNLOAD_QRCODE
*&---------------------------------------------------------------------*
*& Form CONVERT_IMAGE
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* --> p1 text
* <-- p2 text
*----------------------------------------------------------------------*
FORM convert_image .
CREATE OBJECT i_igs_image_converter .
i_igs_image_converter->input = 'image/png'.
i_igs_image_converter->output = 'image/bmp'.
i_igs_image_converter->width = width.
i_igs_image_converter->height = height.
CALL METHOD i_igs_image_converter->set_image
EXPORTING
blob = mime
blob_size = l_content_length.
CALL METHOD i_igs_image_converter->execute
EXCEPTIONS
communication_error = 1
internal_error = 2
external_error = 3
OTHERS = 4.
IF sy-subrc = 0.
CALL METHOD i_igs_image_converter->get_image
IMPORTING
blob = blob
blob_size = blob_size
blob_type = blob_type.
ENDIF.
IF sy-subrc = 0.
IF p_rad1 = 'X'.
CALL SCREEN '9000'. "Calling the screen for qrcode display
ELSE.
PERFORM show_smart_form. "calling the smartform for qrcode display
ENDIF.
ENDIF.
ENDFORM. " CONVERT_IMAGE
*&---------------------------------------------------------------------*
*& Module STATUS_9000 OUTPUT
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
MODULE status_9000 OUTPUT.
SET PF-STATUS '9000'.
"Creating the object for the container
CREATE OBJECT picture_container
EXPORTING
container_name = 'PICTURECONTROL'.
CREATE OBJECT picture_control
EXPORTING
parent = picture_container.
"Calling the screen
PERFORM call_screen.
ENDMODULE. " STATUS_9000 OUTPUT
*&---------------------------------------------------------------------*
*& Form CALL_SCREEN
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* --> p1 text
* <-- p2 text
*----------------------------------------------------------------------*
FORM call_screen .
"Creating the url of the image for the display in the container in the screen
SPLIT blob_type AT '/' INTO blob_type l_img_subtype.
CALL FUNCTION 'DP_CREATE_URL'
EXPORTING
type = blob_type
subtype = l_img_subtype
size = blob_size
lifetime = cndp_lifetime_transaction
TABLES
data = blob
CHANGING
url = l_img_url
EXCEPTIONS
OTHERS = 1.
IF sy-subrc IS INITIAL.
CALL METHOD picture_control->load_picture_from_url
EXPORTING
url = l_img_url.
ENDIF.
ENDFORM. " CALL_SCREEN
*&---------------------------------------------------------------------*
*& Module USER_COMMAND_9000 INPUT
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
MODULE user_command_9000 INPUT.
IF sy-ucomm = 'BACK'.
LEAVE TO SCREEN 0.
ENDIF.
ENDMODULE. " USER_COMMAND_9000 INPUT
*&---------------------------------------------------------------------*
*& Form SHOW_SMART_FORM
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* --> p1 text
* <-- p2 text
*----------------------------------------------------------------------*
FORM show_smart_form .
gi_name = 'QRCODE10'. "name of the qrcode will be in se78 after one time running this program
gi_object = 'GRAPHICS'.
gi_id = 'BMAP'.
gi_btype = 'BCOL'. "If u want black and white pass BMON
gi_resident = ' '.
gi_autoheight = 'X'.
gi_bmcomp = 'X'.
l_extension = 'BMP'.
"importing the image into se78 before displaying it in the smartform.
PERFORM import_bitmap_bds USING blob
gi_name
gi_object
gi_id
gi_btype
l_extension
' '
gi_resident
gi_autoheight
gi_bmcomp
CHANGING l_docid
gi_resolution.
IF sy-subrc = 0.
DATA:fname TYPE rs38l_fnam.
"gettingt the name FM of the smartform
CALL FUNCTION 'SSF_FUNCTION_MODULE_NAME'
EXPORTING
formname = 'ZQR_TEST'
* VARIANT = ' '
* DIRECT_CALL = ' '
IMPORTING
fm_name = fname
EXCEPTIONS
no_form = 1
no_function_module = 2
OTHERS = 3.
"Calling the FM of the smartform for display
CALL FUNCTION fname
EXPORTING
* ARCHIVE_INDEX =
* ARCHIVE_INDEX_TAB =
* ARCHIVE_PARAMETERS =
* CONTROL_PARAMETERS =
* MAIL_APPL_OBJ =
* MAIL_RECIPIENT =
* MAIL_SENDER =
* OUTPUT_OPTIONS =
* USER_SETTINGS = 'X'
w_name = 'QRCODE10'
* IMPORTING
* DOCUMENT_OUTPUT_INFO =
* JOB_OUTPUT_INFO =
* JOB_OUTPUT_OPTIONS =
EXCEPTIONS
formatting_error = 1
internal_error = 2
send_error = 3
user_canceled = 4
OTHERS = 5.
IF sy-subrc <> 0.
* Implement suitable error handling here
ENDIF.
ENDIF.
ENDFORM. " SHOW_SMART_FORM
*&---------------------------------------------------------------------*
*& Form IMPORT_BITMAP_BDS (Copied from standard program and modified it as per the requirement)
*&---------------------------------------------------------------------*
FORM import_bitmap_bds
USING p_blob TYPE w3mimetabtype
p_name TYPE stxbitmaps-tdname
p_object TYPE stxbitmaps-tdobject
p_id TYPE stxbitmaps-tdid
p_btype TYPE stxbitmaps-tdbtype
p_format TYPE c
p_title LIKE bds_description
p_resident TYPE stxbitmaps-resident
p_autoheight TYPE stxbitmaps-autoheight
p_bmcomp TYPE stxbitmaps-bmcomp
CHANGING p_docid TYPE stxbitmaps-docid
p_resolution TYPE stxbitmaps-resolution.
DATA: l_object_key TYPE sbdst_object_key.
DATA: l_tab TYPE ddobjname.
DATA: BEGIN OF l_bitmap OCCURS 0,
l(64) TYPE x,
END OF l_bitmap.
DATA: l_filename TYPE string,
l_bytecount TYPE i,
l_bds_bytecount TYPE i.
DATA: l_color(1) TYPE c,
l_width_tw TYPE stxbitmaps-widthtw,
l_height_tw TYPE stxbitmaps-heighttw,
l_width_pix TYPE stxbitmaps-widthpix,
l_height_pix TYPE stxbitmaps-heightpix.
DATA: l_bds_object TYPE REF TO cl_bds_document_set,
l_bds_content TYPE sbdst_content,
l_bds_components TYPE sbdst_components,
wa_bds_components TYPE LINE OF sbdst_components,
l_bds_signature TYPE sbdst_signature,
wa_bds_signature TYPE LINE OF sbdst_signature,
l_bds_properties TYPE sbdst_properties,
wa_bds_properties TYPE LINE OF sbdst_properties.
DATA wa_stxbitmaps TYPE stxbitmaps.
* Enqueue
PERFORM enqueue_graphic USING p_object
p_name
p_id
p_btype.
* Bitmap conversion
CALL FUNCTION 'SAPSCRIPT_CONVERT_BITMAP_BDS'
EXPORTING
color = 'X'
format = p_format
resident = p_resident
bitmap_bytecount = l_bytecount
compress_bitmap = p_bmcomp
IMPORTING
width_tw = l_width_tw
height_tw = l_height_tw
width_pix = l_width_pix
height_pix = l_height_pix
dpi = p_resolution
bds_bytecount = l_bds_bytecount
TABLES
bitmap_file = p_blob
bitmap_file_bds = l_bds_content
EXCEPTIONS
format_not_supported = 1
no_bmp_file = 2
bmperr_invalid_format = 3
bmperr_no_colortable = 4
bmperr_unsup_compression = 5
bmperr_corrupt_rle_data = 6
OTHERS = 7.
IF sy-subrc <> 0.
PERFORM dequeue_graphic USING p_object
p_name
p_id
p_btype.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4
RAISING conversion_failed.
ENDIF.
* Save bitmap in BDS
CREATE OBJECT l_bds_object.
wa_bds_components-doc_count = '1'.
wa_bds_components-comp_count = '1'.
wa_bds_components-mimetype = c_bds_mimetype.
wa_bds_components-comp_size = l_bds_bytecount.
APPEND wa_bds_components TO l_bds_components.
IF p_docid IS INITIAL. " graphic is new
wa_bds_signature-doc_count = '1'.
APPEND wa_bds_signature TO l_bds_signature.
CALL METHOD l_bds_object->create_with_table
EXPORTING
classname = c_bds_classname
classtype = c_bds_classtype
components = l_bds_components
content = l_bds_content
CHANGING
signature = l_bds_signature
object_key = l_object_key
EXCEPTIONS
OTHERS = 1.
IF sy-subrc <> 0.
PERFORM dequeue_graphic USING p_object
p_name
p_id
p_btype.
* message e285 with p_name 'BDS'.
ENDIF.
READ TABLE l_bds_signature INDEX 1 INTO wa_bds_signature
TRANSPORTING doc_id.
IF sy-subrc = 0.
p_docid = wa_bds_signature-doc_id.
ELSE.
PERFORM dequeue_graphic USING p_object
p_name
p_id
p_btype.
* message e285 with p_name 'BDS'.
ENDIF.
ELSE. " graphic already exists
********* read object_key for faster access *****
CLEAR l_object_key.
SELECT SINGLE * FROM stxbitmaps INTO wa_stxbitmaps
WHERE tdobject = p_object
AND tdid = p_id
AND tdname = p_name
AND tdbtype = p_btype.
SELECT SINGLE tabname FROM bds_locl INTO l_tab
WHERE classname = c_bds_classname
AND classtype = c_bds_classtype.
IF sy-subrc = 0.
SELECT SINGLE object_key FROM (l_tab) INTO l_object_key
WHERE loio_id = wa_stxbitmaps-docid+10(32)
AND classname = c_bds_classname
AND classtype = c_bds_classtype.
ENDIF.
******** read object_key end ********************
CALL METHOD l_bds_object->update_with_table
EXPORTING
classname = c_bds_classname
classtype = c_bds_classtype
object_key = l_object_key
doc_id = p_docid
doc_ver_no = '1'
doc_var_id = '1'
CHANGING
components = l_bds_components
content = l_bds_content
EXCEPTIONS
nothing_found = 1
OTHERS = 2.
IF sy-subrc = 1. " inconsistency STXBITMAPS - BDS; repeat check in
wa_bds_signature-doc_count = '1'.
APPEND wa_bds_signature TO l_bds_signature.
CALL METHOD l_bds_object->create_with_table
EXPORTING
classname = c_bds_classname
classtype = c_bds_classtype
components = l_bds_components
content = l_bds_content
CHANGING
signature = l_bds_signature
object_key = l_object_key
EXCEPTIONS
OTHERS = 1.
IF sy-subrc <> 0.
PERFORM dequeue_graphic USING p_object
p_name
p_id
p_btype.
* message e285 with p_name 'BDS'.
ENDIF.
READ TABLE l_bds_signature INDEX 1 INTO wa_bds_signature
TRANSPORTING doc_id.
IF sy-subrc = 0.
p_docid = wa_bds_signature-doc_id.
ELSE.
PERFORM dequeue_graphic USING p_object
p_name
p_id
p_btype.
* message e285 with p_name 'BDS'.
ENDIF.
ELSEIF sy-subrc = 2.
PERFORM dequeue_graphic USING p_object
p_name
p_id
p_btype.
* message e285 with p_name 'BDS'.
ENDIF.
ENDIF.
* Save bitmap header in STXBITPMAPS
wa_stxbitmaps-tdname = p_name.
wa_stxbitmaps-tdobject = p_object.
wa_stxbitmaps-tdid = p_id.
wa_stxbitmaps-tdbtype = p_btype.
wa_stxbitmaps-docid = p_docid.
wa_stxbitmaps-widthpix = l_width_pix.
wa_stxbitmaps-heightpix = l_height_pix.
wa_stxbitmaps-widthtw = l_width_tw.
wa_stxbitmaps-heighttw = l_height_tw.
wa_stxbitmaps-resolution = p_resolution.
wa_stxbitmaps-resident = p_resident.
wa_stxbitmaps-autoheight = p_autoheight.
wa_stxbitmaps-bmcomp = p_bmcomp.
INSERT INTO stxbitmaps VALUES wa_stxbitmaps.
IF sy-subrc <> 0.
UPDATE stxbitmaps FROM wa_stxbitmaps.
IF sy-subrc <> 0.
* message e285 with p_name 'STXBITMAPS'.
ENDIF.
ENDIF.
* Set description in BDS attributes
wa_bds_properties-prop_name = 'DESCRIPTION'.
wa_bds_properties-prop_value = p_title.
APPEND wa_bds_properties TO l_bds_properties.
CALL METHOD l_bds_object->change_properties
EXPORTING
classname = c_bds_classname
classtype = c_bds_classtype
object_key = l_object_key
doc_id = p_docid
doc_ver_no = '1'
doc_var_id = '1'
CHANGING
properties = l_bds_properties
EXCEPTIONS
OTHERS = 1.
PERFORM dequeue_graphic USING p_object
p_name
p_id
p_btype.
ENDFORM.
*&---------------------------------------------------------------------*
*& Form ENQUEUE_GRAPHIC
*&---------------------------------------------------------------------*
* Enqueue of graphics stored in BDS
*----------------------------------------------------------------------*
FORM enqueue_graphic USING p_object
p_name
p_id
p_btype.
CALL FUNCTION 'ENQUEUE_ESSGRABDS'
EXPORTING
* MODE_STXBITMAPS = 'E'
tdobject = p_object
tdname = p_name
tdid = p_id
tdbtype = p_btype
* X_TDOBJECT = ' '
* X_TDNAME = ' '
* X_TDID = ' '
* X_TDBTYPE = ' '
* _SCOPE = '2'
* _WAIT = ' '
* _COLLECT = ' '
EXCEPTIONS
foreign_lock = 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
RAISING enqueue_failed.
ENDIF.
ENDFORM. " ENQUEUE_GRAPHIC
*&---------------------------------------------------------------------*
*& Form DEQUEUE_GRAPHIC
*&---------------------------------------------------------------------*
* Dequeue of graphics stored in BDS
*----------------------------------------------------------------------*
FORM dequeue_graphic USING p_object
p_name
p_id
p_btype.
CALL FUNCTION 'DEQUEUE_ESSGRABDS'
EXPORTING
* MODE_STXBITMAPS = 'E'
* X_TDOBJECT = ' '
* X_TDNAME = ' '
* X_TDID = ' '
* X_TDBTYPE = ' '
* _SCOPE = '3'
* _SYNCHRON = ' '
* _COLLECT = ' '
tdobject = p_object
tdname = p_name
tdid = p_id
tdbtype = p_btype.
ENDFORM. " DEQUEUE_GRAPHIC
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程序中需要创建一个屏幕9000,流逻辑如下:
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PROCESS BEFORE OUTPUT.
MODULE STATUS_9000.
*
PROCESS AFTER INPUT.
MODULE USER_COMMAND_9000.
|
9000屏幕上创建一个名字为PICTURECONTROL的custom control
还要创建一个status 9000,如下:
最后Tcode smartforms 创建一个供二维码显示的smartform ‘ZQR_TEST'
Form interface中创建一个输入参数 W_NAME
Main window下创建一个Graphic,然后保存。
3, 测试显示
选择画面输入需要生成二维码的内容,二维码的长宽,以及显示的模式,是abap显示,还是smartform显示,然后运行。
abap程序显示如下:
Smartform显示如下:
以上。