多线程执行后台任务，提供效率

本文主要是介绍多线程执行后台任务，提供效率，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

场景：
大批量复制物料描述到新的物料上，多线程同时执行已提高效率

REPORT zmm316.

INCLUDE zmm316_top.

INCLUDE zmm316_f01.
*-----------------------------------------------------------------------

• I N I T I A L I Z A T I O N
  *-----------------------------------------------------------------------
  INITIALIZATION.

*-----------------------------------------------------------------------

• A T S E L E C T I O N - S C R E E N
  *-----------------------------------------------------------------------
  AT SELECTION-SCREEN.

START-OF-SELECTION.

• 读取文件
• IF p_sc = ‘X’.
• PERFORM read_file.
• PERFORM frm_data_check.
• ELSEIF p_cx = ‘X’.

PERFORM frm_get_data.

• ENDIF.
  &---------------------------------------------------------------------
  *& 包含 ZMM316_TOP
  &---------------------------------------------------------------------
  ----------------------------------------------------------------------
  TABLES: sscrfields,ztmatnr_match,a017,mara.

TYPES: BEGIN OF ty_alv,
matnr_o TYPE mseg-matnr, "旧物料号
matnr_n TYPE mseg-matnr,
zdate TYPE ztmatnr_match-zdate,
ztime TYPE ztmatnr_match-ztime,
zsel TYPE char1,
zlight TYPE char04, " 指示灯
zmsg TYPE char100,

•     zwlsl   type P LENGTH 10  DECIMALS 3,
  

•     zdate   TYPE DATS,
  

•     zsl     TYPE i,END OF ty_alv.
  

TYPES: BEGIN OF ty_alv2,
matnr_n(18) TYPE c,
zsel TYPE char1,
zlight TYPE char04, " 指示灯
zmsg TYPE char100,

•     zwlsl   type P LENGTH 10  DECIMALS 3,
  

•     zdate   TYPE DATS,END OF ty_alv2.
  

DATA:gt_alv TYPE STANDARD TABLE OF ty_alv. "定义内表
DATA:gs_alv TYPE ty_alv. "定义工作区
FIELD-SYMBOLS: <fs_alv> TYPE ty_alv.

DATA:gt_fieldcat TYPE lvc_t_fcat, "字段目录内表
gs_fieldcat TYPE lvc_s_fcat, "字段目录工作区
gs_layout TYPE lvc_s_layo. "用于定义ALV表单的相关格式、属性
*DATA:gt_index_all TYPE STANDARD TABLE OF ty_index,

• gs_index     TYPE ty_index.
  

DATA: gv_messages TYPE c LENGTH 200,
bdcdata TYPE TABLE OF bdcdata WITH HEADER LINE,
gs_option TYPE ctu_params,
messtab TYPE TABLE OF bdcmsgcoll WITH HEADER LINE.

RANGES:r_matnr_old FOR mara-bismt.
RANGES:r_werks FOR a017-werks.
*-----------------------------------------------------------------------

• P A R A M E T E R S & S E L E C T - O P T I O N S
  *-----------------------------------------------------------------------
• 功能选择界面
  SELECTION-SCREEN BEGIN OF BLOCK blk1 WITH FRAME TITLE text-t01.
  SELECT-OPTIONS: s_jmatnr FOR ztmatnr_match-matnr_old, "旧物料

•            s_werks FOR a017-werks OBLIGATORY,"工厂s_xmatnr FOR ztmatnr_match-matnr_new NO-DISPLAY.   "新物料
  

PARAMETERS: p_sjfb TYPE char07, "数据分包
p_htrw TYPE char04. "后台任务

SELECTION-SCREEN END OF BLOCK blk1.

• 下载模版按钮
  SELECTION-SCREEN FUNCTION KEY 1.

&---------------------------------------------------------------------
*& 包含 ZMM316_F01
&---------------------------------------------------------------------
FORM frm_get_data .

SELECT bismt AS matnr_n
matnr AS matnr_o
INTO CORRESPONDING FIELDS OF TABLE gt_alv
FROM mara
WHERE matnr IN s_jmatnr
AND bismt IN s_xmatnr
AND bismt <> ‘’.

SELECT matnr_new AS matnr_n,
matnr_old AS matnr_o,
zdate,
ztime
INTO TABLE @DATA(lt_match)
FROM ztmatnr_match "pa001 bseg mseg ekpo
.

SORT lt_match BY matnr_o.
.
REFRESH r_werks.

r_werks-sign = ‘I’.
r_werks-option = ‘CP’.
r_werks-low = ‘*’.
APPEND r_werks.

• LOOP AT gt_alv ASSIGNING <fs_alv>.
• READ TABLE lt_match INTO DATA(ls_match) WITH KEY matnr_o = <fs_alv>-matnr_o

•                                                 BINARY SEARCH.
  

• IF sy-subrc = 0.

•  <fs_alv>-zlight = icon_green_light.
  

• ENDIF.
• ENDLOOP.
• DELETE gt_alv[] WHERE zlight = icon_green_light.

******后台数据处理
DATA:lv_xhhs TYPE p LENGTH 13 DECIMALS 2."每次循环数据行数
DATA:lv_num TYPE p LENGTH 13 DECIMALS 2,
lv_time TYPE int4, "
lvf_indexf TYPE int4, "
lvt_indext TYPE int4. "

lv_num = lines( gt_alv ).

lv_xhhs = ceil( lv_num / p_sjfb ). "获得包得数量

DO lv_xhhs TIMES.

lv_time = lv_time + 1.
lvf_indexf = lvt_indext + 1."计算本次包发送的数据开始索引
lvt_indext = lv_time * p_sjfb ."计算本次包发送的数据结束索引REFRESH r_matnr_old.
LOOP AT gt_alv ASSIGNING <fs_alv> FROM lvf_indexf TO lvt_indext.   "循环取到得数据r_matnr_old-sign = 'I'.r_matnr_old-option = 'EQ'.r_matnr_old-low = <fs_alv>-matnr_o.APPEND r_matnr_old.
ENDLOOP.PERFORM frm_creat_job .

ENDDO.

ENDFORM.
&---------------------------------------------------------------------
*& Form FRM_CREAT_JOB
&---------------------------------------------------------------------

•   text
  

----------------------------------------------------------------------

• –> p1 text
• <-- p2 text
  ----------------------------------------------------------------------
  FORM frm_creat_job .

DATA:lv_number TYPE tbtcjob-jobcount,
lv_name TYPE tbtcjob-jobname,
lv_print_parameters TYPE pri_params VALUE ‘LP01’.

DATA lv_rep LIKE trdir-name VALUE ‘ZMM315’.
DATA:lv_job LIKE tbtco-jobname.
DATA:lv_num TYPE p LENGTH 13 DECIMALS 2.

lv_job =‘ZMM315后台复制采购信息记录’&& ‘-’ && sy-datum && ‘-’&& sy-uzeit.

DO.
SELECT COUNT(*)
INTO @DATA(lv_count)
FROM tbtco
WHERE tbtco~jobname LIKE ‘ZMM315后台复制采购信息记录%’
AND tbtco~status IN ( ‘R’,‘Y’ ).

IF lv_count < p_htrw.EXIT.
ENDIF.

ENDDO.

CLEAR lv_number.

"创建已计划状态的JOB
CALL FUNCTION ‘JOB_OPEN’
EXPORTING
jobname = lv_job
IMPORTING
jobcount = lv_number
EXCEPTIONS
cant_create_job = 1
invalid_job_data = 2
jobname_missing = 3
OTHERS = 4.
IF sy-subrc = 0.

SUBMIT (lv_rep)
TO SAP-SPOOL "打印机参数设置
SPOOL PARAMETERS lv_print_parameters "打印机格式
WITH s_matnr IN r_matnr_old
WITH s_werks IN r_werks
WITH p_job = 'X'
WITHOUT SPOOL DYNPRO
USER syst-uname
VIA JOB lv_job
NUMBER lv_number
AND RETURN.IF sy-subrc = 0."释放已计划的JOB，JOB状态为活动CALL FUNCTION 'JOB_CLOSE'EXPORTINGjobcount             = lv_numberjobname              = lv_jobstrtimmed            = 'X'EXCEPTIONScant_start_immediate = 1invalid_startdate    = 2jobname_missing      = 3job_close_failed     = 4job_nosteps          = 5job_notex            = 6lock_failed          = 7OTHERS               = 8.IF sy-subrc <> 0.MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgnoWITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.ENDIF.
ENDIF.

ENDIF.

ENDFORM.

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