VB连接SAP实例

最近做个项目有用到vb连接SAP，现在项目完成，做个技术总结。顺便整理了下VB连接SAP取回/传送数据

的方法。

1.连接SAP.

Public Function GetSAPConnection() As Object
Dim strStatus As String
Dim oFunction As Object
Dim oConnection As Object
Dim result As Boolean
Set oFunction = CreateObject("SAP.LogonControl.1")
Set oConnection = oFunction.NewConnection

oConnection.client = "700"
oConnection.language = "zh"

oConnection.ApplicationServer = "172.16.0.23"
oConnection.user = "WMS001"
oConnection.Password = "WMS001"
oConnection.SystemNumber = "03"
oConnection.codepage = "8400"

result = oConnection.Logon(0,True)
If result <> True Then
Set oFunction = Nothing
Set oConnection = Nothing
Set GetSAPConnection = Nothing
MsgBox "连接失败！"
Else
' MsgBox "连接成功！"
Set GetSAPConnection = oConnection
End If
End Function

2.取得SAP数据Example

'先声明全局变量
Dim sapCon As Object
Dim func As Object
Dim retSapData As Object '返回的数据

-----------------------------
' 通过RFC接口远程运行SAP内部函数
Public Function GetSAPData() As Boolean

'On Error GoTo LblErr

Dim RFCName As String
Dim RetTblName As String
Dim RetTblName2 As String
Dim ofun As Object
Dim i As Integer

Set sapCon = GetSAPConnection()
Set ofun = CreateObject("SAP.FUNCTIONS")
Set ofun.Connection = sapCon

RFCName = "ZWMS_POST_DATA"

' 通过RFC接口远程运行SAP内部函数
Set func = ofun.Add(RFCName) ' 赋要调用的SAP内建函数名

a.传入RFC的参数为 值

'设置参数
Dim params(5,1) As String
'参数名
params(0,0) = "I_TCODE"
params(1,0) = "I_WERKS"
params(2,0) = "I_ORDNO"
params(3,0) = "I_CHECK_NOPOST"
params(4,0) = "I_CHECK_CANCEL"
'参数值
params(0,1) = "ZMMJ06"
params(1,1) = "WX01"
params(2,1) = "K000025013"
params(3,1) = "X"
params(4,1) = "X"

If Not IsEmpty(params) Then
For i = 0 To 5
func.Exports(CStr(params(i,0))) = CStr(params(i,1))
Next
End If

RetTblName = "ET_MSEG"
RetTblName2 = "ET_BATCH"

If func.Call Then '执行RFC函数
Set retSapData = func.tables.Item(RetTblName) '输出参数 为表
MsgBox retSapData.rowcount '返回的表记录数
MsgBox retSapData(1,"MATNR_REAL") '返回的表的第一条记录"MATNR_REAL"字段的值

GetSAPData = True
Else
MsgBox func.Exception
GetSAPData = False
End If
Exit Function
LblErr:
MsgBox Err.Description,vbCritical
End Function

b.传入RFC的参数为 结构 （结构名 IS_DOC）

func.Exports("IS_DOC").Value("ORDER") = "5000002" '结构中的元素ORDER
func.Exports("IS_DOC").Value("MATNR") = "51000001" '结构中的元素MATNR
If func.Call Then
Set retSapData = func.tables.Item(RetTblName) '输出参数 为表
sMatnr2 = CStr(retSapData(1,"MATNR_REAL")) '从输出表中取得需要值

End If

c.传入RFC的参数为 表 （表名：T_MAT）

'--------------------------------------
1. 可以只传入一条表数据
func.tables("T_MAT").Rows.Add
func.tables("T_MAT").Value(1,"PROD_ORDER") = "5000002"
func.tables("T_MAT").Value(1,"MATNR_IDEAL") = "51000000"
func.tables("T_MAT").Value(1,"SWB002") = "82"
func.tables("T_MAT").Value(1,"MATNR_REAL") = ""
func.tables("T_MAT").Value(1,"MAKTX") = ""

If func.Call Then
Set retSapData = func.tables.Item(RetTblName) '输出参数 为表
sMatnr2 = CStr(retSapData(1,"MATNR_REAL")) '从输出表中取得需要值
End If
'------------------------------------------------

2. 整张表传入
Do While Not objRs.EOF
iRow = iRow + 1
func.tables("T_MAT").Rows.Add
func.tables("T_MAT").Value(iRow,"PROD_ORDER") = objRs.Fields(0).Value
func.tables("T_MAT").Value(iRow,"MATNR_IDEAL") = objRs.Fields(1).Value
func.tables("T_MAT").Value(iRow,"SWB002") = objRs.Fields(2).Value
func.tables("T_MAT").Value(iRow,"MATNR_REAL") = ""
func.tables("T_MAT").Value(iRow,"MAKTX") = ""
objRs.MoveNext
Loop

If func.Call Then
Set retSapData = func.tables.Item(RetTblName) '输出参数 为表
sMatnr2 = CStr(retSapData(1,"MATNR_REAL")) '从输出表中取得需要值
End If

' RFC的方法：
' func.Exports("参数名") 输入参数
' func.Imports("参数名") SAP返回值

SAP提供的接口函数说明

function name:ZMESSH_REAL_MATERIAL

FUNCTION ZMESSH_REAL_MATERIAL .

*"---------------------------------------------------------

*"*" 本地接口 :

*" EXPORTING

*" VALUE(E_SUBRC) TYPE SY-SUBRC

*" VALUE(E_MSG) TYPE BAPI_MSG

*" TABLES

*" T_MAT STRUCTURE ZMES_MAT

*" ET_RETURN STRUCTURE BAPIRET2 OPTIONAL

*"----------------------------------------------------------

1.输入参数

2. 返回参数

l E_SUBRC 状态 0: 成功 其它失败

l E_MSG 错误信息

3. 输入表

l T_MAT 物料特性表 ( 有一部份栏位也输出)

（编辑：李大同）

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