SAP的應用日志(Application Log)是用于創建,保存和分析系統消息的工具.

相關TCODE:

SLG0: Creation of Object and Sub object
SLG1: Display Application Logs

相關創建應用日志函數

BAL_LOG_CREATE --> Create log with header data
BAL_LOG_MSG_ADD --> Put message in log
BAL_DB_SAVE --> Save logs in the database

創建應用日志的處理步驟:

1: 使用TCODE:SLG0創建對象和子對象.
2: 創建對象,對象名以Z或Y開頭.
3:?創建對象后,你將創建子對象.
4: 如果相應的子對象不存在,則創建子對象.
5: 這樣對象和子對象就可以在應用日志中使用了.
6: 使用下面三個函數創建和保存應用日志
7: 使用'BAL_LOG_CREATE'?創建日志句柄(log handle)
8: 使用'BAL_LOG_MSG_ADD' 添加消息,
9: 使用'BAL_DB_SAVE' 保存日志

如何查看應用日志?

1.?輸入TCODE: SLG1.系統將出現分析應用日志的屏幕.
2. 輸入對象，子對象和外部標示符.
3. 輸入時間.
4. 規定日志的原因
5. 選擇日志類別和創建日志.
6. 執行.
系統將顯示結果.

SAP的代碼實例:

SBAL_DEMO_06

樣例代碼:

report sbal_demo_06 .
***********************************************************************
***********************************************************************
*???????????????????REPORT SBAL_DEMO_06
*
*??The application log allows to add application specific data to
*??a log header or a message.
*
*??One simple possibility is to use the context. This allows to
*??to add the content of a (flat, non-hierarchical) DDIC-structure
*??to a log header or a message (sie sub-structure 'CONTEXT' in
*??structure BAL_S_LOG and BAL_S_MSG).
*??There is already an example in Report SBAL_DEMO_02 for this
*??(see FORM msg_add_with_context).
*
*??But sometimes a simple, flat DDIC-structure is not sufficient.
*??If you want to add more complex data (like an internal table,
*??a complex data type, etc.) to a log or a message,
*??you can use table BAL_INDX.
*
*??BAL_INDX is an INDX-like table which can be filled and read
*??with the ABAP-statement EXPORT/IMPORT.
*??This report shows an example how to use BAL_INDEX.
*
*??This report has three options:
*????o create??log
*????o display log
*????o delete??log
*
*??create log:
*??==========
*??The log which is created consists of a log header
*??and only one message. For both, log header and message
*??the parameters are defined??(see sub-structure 'PARAMS' in
*??BAL_S_LOG and BAL_S_MSG).
*??The parameters are filled and callback routines are defined.
*??When the log is saved, also some internal tables containing
*??further data are saved via EXPORT TO BAL_INDX
*??(see FORM log_save)
*
*??display log:
*??===========
*??The log is searched on the database, loaded and displayed.
*??When the detail of a message or the log header is selected
*??by the user, the callback-routines are called.
*??In this callback-routine the internal tables are read
*??with 'IMPORT FROM BAL_INDX'.
*??(see FORM CALLBACK_LOG_DETAIL or FORM CALLBACK_MSG_DETAIL, both
*???call FORM LOAD_MY_DATA).
*
*??delete log:
*??===========
*??The log is searched on the database and deleted.
*??This deletion also deletes the data in table BAL_INDX for this
*??log.
*
***********************************************************************
***********************************************************************

***********************************************************************
******************** SELECTION SCREEN *********************************
***********************************************************************
parameters:
??p_create??radiobutton group par,
??p_disp????radiobutton group par,
??p_delete??radiobutton group par.

***********************************************************************
******************** CONSTANTS, TYPES, DATA ***************************
***********************************************************************
set extended check off.
include sbal_constants.
set extended check on.
tables:
??bal_indx.
constants:
??const_example_object????type bal_s_log-object????value 'BCT1',
??const_example_extnumber type bal_s_log-extnumber value 'BAL_INDX',
??const_name_msg_ident(9) type c???????????????????value 'MSG_IDENT'.
data:
??g_identifier(10)????????type n,
??g_lognumber?????????????type balhdr-lognumber.
* these are our own data we want to save with the application log:
data:
??g_my_header_data????????type bal_s_ex05 occurs 0 with header line,
??begin of g_my_message_data occurs 0,
????identifier????????????like g_identifier,
????t_my_data?????????????type bal_s_ex06 occurs 0,
??end of g_my_message_data.

***********************************************************************
******************** MAIN PROGRAM *************************************
***********************************************************************
end-of-selection.

* create log
??if not p_create is initial.
????perform log_create.
??endif.

* display log
??if not p_disp is initial.
????perform log_display.
??endif.

* delete log
??if not p_delete is initial.
????perform log_delete.
??endif.

***********************************************************************
************** FORMS FOR CREATION OF THE LOG *************************
***********************************************************************
*--------------------------------------------------------------------
* FORM log_create.
*--------------------------------------------------------------------
form log_create.
??data:
????l_log_handle type balloghndl.

* create log header with information about the carriers and
* connection which are calculated in this transaction
??perform log_header_create
????????????changing
??????????????l_log_handle.

* create the message
??perform log_message_create
????????????using
??????????????l_log_handle.

* save the application log and our data
??perform log_save
????????????using
??????????????l_log_handle.

endform.
*--------------------------------------------------------------------
* FORM log_header_create
*--------------------------------------------------------------------
form log_header_create
???????changing
?????????c_log_handle???type balloghndl.

??data:
????l_s_log?????type bal_s_log.

* create log header data
??clear l_s_log.
??l_s_log-object????= const_example_object.
??l_s_log-extnumber = const_example_extnumber.

* define callback routine
??l_s_log-params-callback-userexitp = sy-repid.
??l_s_log-params-callback-userexitf = 'CALLBACK_LOG_DETAIL'.
??l_s_log-params-callback-userexitt = const_callback_form.

* create the log header
??call function 'BAL_LOG_CREATE'
???????exporting
????????????i_s_log??????= l_s_log
???????importing
????????????e_log_handle = c_log_handle
???????exceptions
????????????others???????= 1.
??if sy-subrc <> 0.
????message id sy-msgid type sy-msgty number sy-msgno
????????????with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
??endif.

* we want to store some information in the log header
* to describe which carriers and flight were handled in this log
??g_my_header_data-carrid?????= 'AB'.??"#EC NOTEXT
??g_my_header_data-txt_carrid = 'Airways AB'.???????????"#EC NOTEXT
??g_my_header_data-connid?????= '0003'."#EC NOTEXT
??g_my_header_data-txt_connid = 'Hamburg - New York'(001).
??append g_my_header_data.
??g_my_header_data-carrid?????= 'XY'.??"#EC NOTEXT
??g_my_header_data-txt_carrid = 'XY Lines'.?????????????"#EC NOTEXT
??g_my_header_data-connid?????= '0002'."#EC NOTEXT
??g_my_header_data-txt_connid = 'Walldorf - Tokio'(002).
??append g_my_header_data.
??g_my_header_data-carrid?????= 'ZZ'.??"#EC NOTEXT
??g_my_header_data-txt_carrid = 'ZZ Wings'.?????????????"#EC NOTEXT
??g_my_header_data-connid?????= '0014'."#EC NOTEXT
??g_my_header_data-txt_connid = 'Paris - Frankfurt'(003).
??append g_my_header_data.

endform.
*--------------------------------------------------------------------
* FORM log_message_create
*--------------------------------------------------------------------
form log_message_create
???????using
?????????i_log_handle???type balloghndl.

??data:
????l_s_msg?????type bal_s_msg,
????l_s_par?????type bal_s_par,
????l_s_my_data type bal_s_ex06.

* create a message
* 327(BL): "&1 customers were allowed to fly for free (see detail)"
??clear l_s_msg.
??l_s_msg-msgty = 'E'.
??l_s_msg-msgid = 'BL'.
??l_s_msg-msgno = '327'.
??l_s_msg-msgv1 = '3'.

* define callback routine
??l_s_msg-params-callback-userexitp = sy-repid.
??l_s_msg-params-callback-userexitf = 'CALLBACK_MSG_DETAIL'.
??l_s_msg-params-callback-userexitt = const_callback_form.

* define an identifer. This is used to establish the link between
* the message and its additional data
??add 1 to g_identifier.

* put his identifier into the parameters of the message
??l_s_par-parname = const_name_msg_ident.
??l_s_par-parvalue???= g_identifier.
??append l_s_par to l_s_msg-params-t_par.

* create the message
??call function 'BAL_LOG_MSG_ADD'
???????exporting
????????????i_log_handle = i_log_handle
????????????i_s_msg??????= l_s_msg
???????exceptions
????????????others???????= 1.
??if sy-subrc <> 0.
????message id sy-msgid type sy-msgty number sy-msgno
????????????with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
??endif.

* we want to store information for this message about the customers
* which were allowed to fly for free:
??g_my_message_data-identifier??= g_identifier.
??l_s_my_data-id??????????= '00000002'.
??l_s_my_data-txt_id??????= 'Peter Smith'.??????????"#EC NOTEXT
??append l_s_my_data to g_my_message_data-t_my_data.
??l_s_my_data-id??????????= '00000013'.
??l_s_my_data-txt_id??????= 'Paula Jones'.??????????"#EC NOTEXT
??append l_s_my_data to g_my_message_data-t_my_data.
??l_s_my_data-id??????????= '00001345'.
??l_s_my_data-txt_id??????= 'Jane Meyer'.???????????"#EC NOTEXT
??append l_s_my_data to g_my_message_data-t_my_data.
??append g_my_message_data.

endform.

*--------------------------------------------------------------------
* FORM log_save
*--------------------------------------------------------------------
form log_save
???????using
?????????i_log_handle????type balloghndl.

??data:
????l_t_log_handle???????type bal_t_logh,
????l_s_new_lognumber????type bal_s_lgnm,
????l_t_new_lognumbers???type bal_t_lgnm.

* save this log
??insert i_log_handle into table l_t_log_handle.
??call function 'BAL_DB_SAVE'
???????exporting
????????????i_t_log_handle???= l_t_log_handle
???????importing
????????????e_new_lognumbers = l_t_new_lognumbers
???????exceptions
????????????others???????????= 1.
??if sy-subrc <> 0.
????message id sy-msgid type sy-msgty number sy-msgno
????????????with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
??endif.

* find out the lognumber of this saved log
??read table l_t_new_lognumbers into l_s_new_lognumber
?????????????with key log_handle = i_log_handle.
??check sy-subrc = 0.
??g_lognumber = l_s_new_lognumber-lognumber.

* also save our own, complex data:
??export g_my_header_data g_my_message_data
?????????to database bal_indx(al)
?????????id g_lognumber.

endform.

***********************************************************************
************** FORMS FOR DISPLAY OF THE LOG **************************
***********************************************************************
*--------------------------------------------------------------------
* FORM log_display
*--------------------------------------------------------------------
form log_display.
??data:
????l_s_log_filter?????type bal_s_lfil,
????l_s_obj????????????type bal_s_obj,
????l_s_extn???????????type bal_s_extn,
????l_t_log_header?????type balhdr_t.

* create filter to search for this log on db
??clear l_s_log_filter-object.
??clear l_s_obj.
??l_s_obj-sign = 'I'.
??l_s_obj-option = 'EQ'.
??l_s_obj-low????= const_example_object.
??append l_s_obj to l_s_log_filter-object.
??clear l_s_extn.
??l_s_extn-sign = 'I'.
??l_s_extn-option = 'EQ'.
??l_s_extn-low????= const_example_extnumber.
??append l_s_extn to l_s_log_filter-extnumber.

* search for this log
??call function 'BAL_DB_SEARCH'
???????exporting
????????????i_s_log_filter = l_s_log_filter
???????importing
????????????e_t_log_header = l_t_log_header
???????exceptions
????????????others?????????= 1.
??if sy-subrc <> 0.
????message id sy-msgid type sy-msgty number sy-msgno
????????????with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
??endif.

* load these messages into memory
??call function 'BAL_DB_LOAD'
???????exporting
????????????i_t_log_header = l_t_log_header
???????exceptions
????????????others?????????= 1.
??if sy-subrc <> 0.
????message id sy-msgid type sy-msgty number sy-msgno
????????????with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
??endif.

* show this log:
* - we do not specify the display profile I_DISPLAY_PROFILE since
*???we want to use the standard profile
* - we do not specify any filter (like I_S_LOG_FILTER, ...,
*???I_T_MSG_HANDLE) since we want to display all messages available
??call function 'BAL_DSP_LOG_DISPLAY'
*??????EXPORTING
*???????????I_S_LOG_FILTER?????????=
*???????????I_T_LOG_CONTEXT_FILTER =
*???????????I_S_MSG_FILTER?????????=
*???????????I_T_MSG_CONTEXT_FILTER =
*???????????I_T_LOG_HANDLE?????????=
*???????????I_T_MSG_HANDLE?????????=
*???????????I_S_DISPLAY_PROFILE????=
???????exceptions
????????????others = 1.
??if sy-subrc <> 0.
????message id sy-msgid type sy-msgty number sy-msgno
????????????with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
??endif.

endform.
*--------------------------------------------------------------------
* FORM CALLBACK_LOG_DETAIL
*--------------------------------------------------------------------
form callback_log_detail???????????????"#EC CALLED
???????tables
?????????i_params??structure spar.

* load my specififc data from database
??perform load_my_data
?????????????tables
???????????????i_params.

* display header data
??call function 'REUSE_ALV_LIST_DISPLAY'
???????exporting
????????????i_structure_name??????= 'BAL_S_EX05'
????????????i_screen_start_column = 1
????????????i_screen_start_line???= 1
????????????i_screen_end_column???= 80
????????????i_screen_end_line?????= 10
???????tables
????????????t_outtab??????????????= g_my_header_data
???????exceptions
????????????others????????????????= 1.
??if sy-subrc <> 0.
????message id sy-msgid type sy-msgty number sy-msgno
???????????with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
??endif.

endform.
*--------------------------------------------------------------------
* FORM CALLBACK_MSG_DETAIL
*--------------------------------------------------------------------
form callback_msg_detail???????????????"#EC CALLED
???????tables
?????????i_params?????structure spar.

??data:
????l_my_message_data type bal_s_ex06 occurs 0.

* load my specififc data from database
??perform load_my_data
?????????????tables
???????????????i_params.

* find out the identifier for this message
??read table i_params with key param = const_name_msg_ident.
??check sy-subrc = 0.
??g_identifier = i_params-value.

* search for those entries which belong to thgis message
??read table g_my_message_data with key identifier = g_identifier.
??check sy-subrc = 0.
??l_my_message_data = g_my_message_data-t_my_data.

* display header data
??call function 'REUSE_ALV_LIST_DISPLAY'
???????exporting
????????????i_structure_name??????= 'BAL_S_EX06'
????????????i_screen_start_column = 1
????????????i_screen_start_line???= 1
????????????i_screen_end_column???= 80
????????????i_screen_end_line?????= 10
???????tables
????????????t_outtab??????????????= l_my_message_data
???????exceptions
????????????others????????????????= 1.
??if sy-subrc <> 0.
????message id sy-msgid type sy-msgty number sy-msgno
???????????with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
??endif.

endform.

*--------------------------------------------------------------------
* FORM LOAD_MY_DATA
*--------------------------------------------------------------------
form load_my_data
???????tables
?????????i_params??structure spar.

??data:
????l_lognumber type balhdr-lognumber.

* find out the log number of this log which is displayed
* (this number is automatically added by the display module)
??read table i_params with key param = bal_param_lognumber.
??if sy-subrc = 0.
????l_lognumber = i_params-value.
??endif.

* when number has changed, load these data
??if g_lognumber ne l_lognumber.
????g_lognumber = l_lognumber.
????import g_my_header_data g_my_message_data
????from database bal_indx(al)
????id g_lognumber.
????if sy-subrc ne 0.
??????clear:
???????g_my_header_data[],
???????g_my_message_data[].
????endif.
??endif.

endform.

***********************************************************************
************** FORMS FOR DELETION OF THE LOG *************************
***********************************************************************
*--------------------------------------------------------------------
* FORM log_delete
*--------------------------------------------------------------------
form log_delete.
??data:
????l_s_log_filter?????type bal_s_lfil,
????l_s_obj????????????type bal_s_obj,
????l_s_extn???????????type bal_s_extn,
????l_t_log_header?????type balhdr_t.

* create filter to search for this log on db
??clear l_s_log_filter-object.
??clear l_s_obj.
??l_s_obj-sign = 'I'.
??l_s_obj-option = 'EQ'.
??l_s_obj-low????= const_example_object.
??append l_s_obj to l_s_log_filter-object.
??clear l_s_extn.
??l_s_extn-sign = 'I'.
??l_s_extn-option = 'EQ'.
??l_s_extn-low????= const_example_extnumber.
??append l_s_extn to l_s_log_filter-extnumber.

* search for this log
??call function 'BAL_DB_SEARCH'
???????exporting
????????????i_s_log_filter = l_s_log_filter
???????importing
????????????e_t_log_header = l_t_log_header
???????exceptions
????????????others?????????= 1.
??if sy-subrc <> 0.
????message id sy-msgid type sy-msgty number sy-msgno
????????????with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
??endif.

* delete these logs
??call function 'BAL_DB_DELETE'
???????exporting
????????????i_t_logs_to_delete = l_t_log_header
???????exceptions
????????????others?????????????= 1.
??if sy-subrc <> 0.
????message id sy-msgid type sy-msgty number sy-msgno
????????????with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
??endif.

endform.

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