C# Call SAP RFC传入表
这段时间公司做了一个SAP的外围系统,之前也做了一些外围系统,不够都挺简单的,就是通过物料号拿价格和描述之类的,像这类的RFC只需要传个参数过去就OK,而现在这个系统需要传大量的表到SAP,之前也问过同事,他们都说C#不能传表到SAP,后来自己在网上找了些资料,自己也尝试了下,果然是不行,虽然API中有Table 对象,好像那Table对象传了值就会报错,后来我在网上看到,C#是不能传表,但是VB可以,用VB写的代码编译成DLL,C#的项目来引用这个DLL,就OK了,我就抱着死马当活马医心态,用VS创建一个VB的项目,然后再网上找了点资料,拿到c#里面测试,居然成功了!!看来SAP对C#的支持不是很友好,很多东西都被阉割了!下面我就将这个DLL和代码共享出来,供大家参考,免得在这上面走弯路(我弄了一天多才弄出来.........):
接口类:
View Code
1 Public Interface IFunctions
2
3 ''' <summary>
4 '''登录SAP，成功，返回True，失败，返回False
5 ''' </summary>
6 ''' <param name="User">用户</param>
7 ''' <param name="PassWord">口令</param>
8 ''' <param name="Language">语言，如ZH、EN等，可以传入null</param>
9 ''' <returns>是否登录成功</returns>
10 ''' <remarks></remarks>
11 Function ConnectToSAP(ByVal User As String, ByVal Password As String, ByVal Language As String) As Boolean
12
13 ''' <summary>
14 ''' 设置调用的sap函数名称
15 ''' </summary>
16 ''' <param name="sapFuncName">sap函数名称</param>
17 ''' <remarks></remarks>
18 Sub SetFuncName(ByVal sapFuncName As String)
19
20 ''' <summary>
21 ''' 设置Sap函数的传入调用参数
22 ''' </summary>
23 ''' <param name="paramName">参数名称</param>
24 ''' <param name="paramValue">参数值</param>
25 ''' <remarks></remarks>
26 Sub SetParamName(ByVal paramName As String, ByVal paramValue As Object)
27
28 ''' <summary>
29 ''' 设置sap的传入内表，用dt_value模拟这个内表
30 ''' </summary>
31 ''' <param name="SapTableName">sap函数传入内表的名字</param>
32 ''' <param name="dt_value">模拟的DataTable，要求与传入内表的字段名一致</param>
33 ''' <remarks></remarks>
34 Sub SetInPutTable(ByVal SapTableName As String, ByVal dt_value As DataTable)
35
36 ''' <summary>
37 ''' 当参数设置完成后，执行函数调用
38 ''' </summary>
39 ''' <remarks></remarks>
40 Sub ExecFun()
41
42 ''' <summary>
43 ''' 根据字段列表（逗号分隔）建立指定字段的DataTable
44 ''' </summary>
45 ''' <param name="fields">字段列表（逗号分隔）</param>
46 ''' <returns>空表</returns>
47 ''' <remarks></remarks>
48 Function CreateTable(ByVal fields As String) As DataTable
49
50 ''' <summary>
51 ''' 取得sap的传出参数值
52 ''' </summary>
53 ''' <param name="paramName">传出参数名</param>
54 ''' <returns>传出参数值</returns>
55 ''' <remarks></remarks>
56 Function GetOutPutParam(ByVal paramName As String) As String
57
58 ''' <summary>
59 ''' 把sap函数调用结构的传出内表转成dotNet的表
60 ''' </summary>
61 ''' <param name="fields">sap传出内表的字段列表，字段间以逗号分隔</param>
62 ''' <param name="SapTableName">sap传出内表的表名</param>
63 ''' <param name="strTrim">是否清除前后空格</param>
64 ''' <returns>把sap内表导出的dotnet表，字段都为string型</returns>
65 ''' <remarks></remarks>
66 Function GetOutPutTable(ByVal fields As String, ByVal SapTableName As String, ByVal strTrim As Boolean) As DataTable
67
68 ''' <summary>
69 ''' 关闭sap的连接
70 ''' </summary>
71 ''' <remarks></remarks>
72 Sub DisConnectSAP()
73
74 End Interface
实现类:
View Code
1 Public Class Functions
2 Implements IFunctions
3
4
5 Private m_sapObject As Object 'sap远程函数调用对象
6 Protected m_sapFun As Object 'sap函数
7 Private m_sapConnection As Object '与SAP的连接
8
9 ''' <summary>
10 ''' 构造函数，传入sap的基本信息
11 ''' </summary>
12 ''' <param name="sapSystem">Sap系统，可以传入null</param>
13 ''' <param name="applicationServer">SAP服务器ip</param>
14 ''' <param name="Client">集团号，如800</param>
15 ''' <param name="SystemNumber">系统编号，如00</param>
16 ''' <remarks></remarks>
17 Public Sub New(ByVal sapSystem As String, ByVal ApplicationServer As String, ByVal Client As String, ByVal SystemNumber As String)
18 Me.m_sapObject = CreateObject("SAP.Functions")
19 Me.m_sapConnection = Me.m_sapObject.Connection()
20
21 If String.IsNullOrEmpty(sapSystem) = False Then
22 Me.m_sapConnection.System = sapSystem
23 End If
24
25 Me.m_sapConnection.ApplicationServer = ApplicationServer
26 Me.m_sapConnection.Client = Client
27 Me.m_sapConnection.SystemNumber = SystemNumber
28 End Sub
29
30
31 ''' <summary>
32 '''登录SAP，成功，返回True，失败，返回False
33 ''' </summary>
34 ''' <param name="User">用户</param>
35 ''' <param name="PassWord">口令</param>
36 ''' <param name="Language">语言，如ZH、EN等，可以传入null</param>
37 ''' <returns>是否登录成功</returns>
38 ''' <remarks></remarks>
39 Public Function ConnectToSAP(ByVal User As String, ByVal Password As String, ByVal Language As String) As Boolean Implements IFunctions.ConnectToSAP
40 Me.m_sapConnection.user = User
41 Me.m_sapConnection.Password = Password
42
43 If String.IsNullOrEmpty(Language) = False Then
44 Me.m_sapConnection.Language = Language
45 Else
46 Me.m_sapConnection.Language = "EN"
47 End If
48
49
50 Me.m_sapObject.AutoLogon = True '自动登录
51 Return Me.m_sapObject.Connection.logon(0, True) '登录是否成功
52 End Function
53
54
55 ''' <summary>
56 ''' 设置调用的sap函数名称
57 ''' </summary>
58 ''' <param name="sapFuncName">sap函数名称</param>
59 ''' <remarks></remarks>
60 Public Sub SetFuncName(ByVal sapFuncName As String) Implements IFunctions.SetFuncName
61 Me.m_sapFun = Me.m_sapObject.Add(sapFuncName)
62 If m_sapFun Is Nothing Then
63 Throw New Exception("Sap远程函数名无效：" + sapFuncName)
64 End If
65 End Sub
66
67 ''' <summary>
68 ''' 设置Sap函数的传入调用参数
69 ''' </summary>
70 ''' <param name="paramName">参数名称</param>
71 ''' <param name="paramValue">参数值</param>
72 ''' <remarks></remarks>
73 Public Sub SetParamName(ByVal paramName As String, ByVal paramValue As Object) Implements IFunctions.SetParamName
74 Dim param As Object
75 param = Me.m_sapFun.Exports(paramName)
76 If param Is Nothing Then
77 Throw New Exception("Sap远程函数的参数名无效：" + paramName)
78 End If
79 param.Value = paramValue
80
81 End Sub
82
83 ''' <summary>
84 ''' 设置sap的传入内表，用dt_value模拟这个内表
85 ''' </summary>
86 ''' <param name="SapTableName">sap函数传入内表的名字</param>
87 ''' <param name="dt_value">模拟的DataTable，要求与传入内表的字段名一致</param>
88 ''' <remarks></remarks>
89 Public Sub SetInPutTable(ByVal SapTableName As String, ByVal dt_value As DataTable) Implements IFunctions.SetInPutTable
90 Dim sapdata As Object 'sap传入内表
91 Dim saprow As Object 'sap传入内表的一行
92 Dim dc As DataColumn
93 Dim index As Integer
94 sapdata = Me.m_sapFun.Tables(SapTableName)
95 For index = 0 To dt_value.Rows.Count - 1 '循环表，并给sap传入内表赋值
96 saprow = sapdata.Rows.Add() '传入内表新增一行记录，下面为传入内表记录赋值
97 For Each dc In dt_value.Columns
98 saprow(dc.ColumnName) = dt_value.Rows(index)(dc.ColumnName).ToString()
99 Next
100 Next
101 End Sub
102
103 ''' <summary>
104 ''' 当参数设置完成后，执行函数调用
105 ''' </summary>
106 ''' <remarks></remarks>
107 Public Sub ExecFun() Implements IFunctions.ExecFun
108 If Me.m_sapFun.Call() = False Then
109 Throw New Exception("Sap远程函数调用失败。") '从SAP取数出错，退出函数
110 End If
111 End Sub
112
113 ''' <summary>
114 ''' 根据字段列表（逗号分隔）建立指定字段的DataTable
115 ''' </summary>
116 ''' <param name="fields">字段列表（逗号分隔）</param>
117 ''' <returns>空表</returns>
118 ''' <remarks></remarks>
119 Public Function CreateTable(ByVal fields As String) As DataTable Implements IFunctions.CreateTable
120 Dim dt As New DataTable
121 Dim strs As String()
122 Dim s As String
123 strs = fields.Split(",")
124 For Each s In strs
125 dt.Columns.Add(s.Trim())
126 Next
127 Return dt
128 End Function
129
130 ''' <summary>
131 ''' 取得sap的传出参数值
132 ''' </summary>
133 ''' <param name="paramName">传出参数名</param>
134 ''' <returns>传出参数值</returns>
135 ''' <remarks></remarks>
136 Public Function GetOutPutParam(ByVal paramName As String) As String Implements IFunctions.GetOutPutParam
137 Dim param As Object
138 param = Me.m_sapFun.Imports(paramName)
139 If param Is Nothing Then
140 Throw New Exception("Sap远程函数的参数名无效：" + paramName)
141 End If
142
143 If param.Value Is Nothing Then
144 Return ""
145 Else
146 Return param.Value.ToString()
147 End If
148 End Function
149
150 ''' <summary>
151 ''' 把sap函数调用结构的传出内表转成dotNet的表
152 ''' </summary>
153 ''' <param name="fields">sap传出内表的字段列表，字段间以逗号分隔</param>
154 ''' <param name="SapTableName">sap传出内表的表名</param>
155 ''' <param name="strTrim">是否清除前后空格</param>
156 ''' <returns>把sap内表导出的dotnet表，字段都为string型</returns>
157 ''' <remarks></remarks>
158 Public Function GetOutPutTable(ByVal fields As String, ByVal SapTableName As String, ByVal strTrim As Boolean) As DataTable Implements IFunctions.GetOutPutTable
159 '按字段列表建立表，fields中的字段列表用逗号分隔
160 Dim dt As DataTable
161 dt = Me.CreateTable(fields)
162
163 '从sap表中读数据，循环sap中取得的数据，写入dt
164 Dim sapdata As Object
165 Dim saprow As Object
166 Dim dr As DataRow '数据增加的新行
167 Dim dc As DataColumn
168 sapdata = Me.m_sapFun.Tables(SapTableName)
169 For Each saprow In sapdata.Rows
170 dr = dt.NewRow()
171 For Each dc In dt.Columns
172 If strTrim = True Then
173 dr(dc.ColumnName) = saprow(dc.ColumnName).ToString().Trim()
174 Else
175 dr(dc.ColumnName) = saprow(dc.ColumnName).ToString()
176 End If
177 Next
178 dt.Rows.Add(dr)
179 Next
180
181 Return dt
182 End Function
183
184 ''' <summary>
185 ''' 关闭sap的连接
186 ''' </summary>
187 ''' <remarks></remarks>
188 Public Sub DisConnectSAP() Implements IFunctions.DisConnectSAP
189 Me.m_sapConnection.logoff()
190 End Sub
191
192 End Class
使用方法:
新建VB的项目,复制这两个类的代码,然后生成的DLL C#调用 C#调用代码如下:
View Code
1 SapServers.IFunctions sap;
2 protected void Page_Load(object sender, EventArgs e)
3 {
4 CallRfc();
5 }
6
7 private void CallRfc()
8 {
9 sap = new SapServers.Functions(null, "172.16.8.225", "370", "00");//传入SAP配置参数
10
11 sap.ConnectToSAP("dotnetuser", "net2009", "zf");//登录SAP
12
13 string str = "KNUMH,DATAB,DATBI,ESOKZ,EKORG,MATNR,LIFNR,KSCHL,KAPPL";
14
15 DataTable newTable = sap.CreateTable(str);
16
17 for (int i = 0; i < 5; i++)
18 {
19 DataRow newRow = newTable.NewRow();
20 newRow["KAPPL"] = "M";
21 newRow["KSCHL"] = "PB00";
22 newRow["LIFNR"] = "D0004";
23 newRow["MATNR"] = "800500002Q";
24 newRow["EKORG"] = "HK01";
25 newRow["ESOKZ"] = "0";
26 newRow["DATBI"] = "2011-06-15";
27 newRow["DATAB"] = "2011-06-15";
28 newRow["KNUMH"] = "0000007232";
29
30 newTable.Rows.Add(newRow);
31 }
32
33 sap.SetFuncName("Z_TEST");//执行的RFC名称
34 sap.SetInPutTable("A018", newTable);//传入表
35
36 sap.ExecFun();//执行这个RFC
37
38 DataTable outPutTable = sap.GetOutPutTable(str, "T_A018", true);//返回的Table
39
40 GridView1.DataSource = outPutTable;
41 GridView1.DataBind();
42 }
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