在SAP S4 OP 中使用SAP API Hub 的API

首先我們打開SAP API Hub - SAP API Business Hub(api.sap.com),點擊APIs

選擇OData V2，在右側搜索框輸入Purchase order(如果需要其他的API請自行修改)

選擇第一個API 點擊，在Overview界面選擇EDMX 下載下來

在S4 OP 端SEGW事務中創建一個Project

右擊選擇Import->Data Model from File

選擇下載下來的API文件

點擊Finish，然后點擊Generate 生成

生成對應的類

接下來我們ZCL_ZTAB_API_PO_PROCES_DPC_EXT 雙擊

點擊方法->繼承方法，選擇A_PURCHASEORDER_GET_ENTITYSET重定義

然后簡單寫一個獲取PO訂單信息的代碼，保存激活

DATA lt_purchaseorder TYPE zcl_ztab_api_po_proces_mpc=>tt_a_purchaseorderitemtype.
  DATA ls_purchaseorder LIKE LINE OF lt_purchaseorder.

  SELECT a~ebeln,b~ebelp,b~werks,b~matnr,b~menge,b~meins
    FROM ekko AS a
    INNER JOIN ekpo AS b ON b~ebeln = a~ebeln
    INTO TABLE @DATA(lt_ekpo)
    UP TO 5 ROWS.
  IF sy-subrc EQ 0.
    LOOP AT lt_ekpo INTO DATA(ls_ekpo).
      ls_purchaseorder-purchaseorder = ls_ekpo-ebeln.
      ls_purchaseorder-purchaseorderitem = ls_ekpo-ebelp.
      ls_purchaseorder-material = ls_ekpo-matnr.
      ls_purchaseorder-plant = ls_ekpo-werks.
      ls_purchaseorder-purchaseorderitem = ls_ekpo-ebelp.
      ls_purchaseorder-orderquantity = ls_ekpo-menge.
      ls_purchaseorder-purchaseorderquantityunit = ls_ekpo-meins.
      APPEND ls_purchaseorder TO lt_purchaseorder.
      CLEAR ls_purchaseorder.
    ENDLOOP.
  ENDIF.

  CHECK lt_purchaseorder IS NOT INITIAL.

  et_entityset = lt_purchaseorder.