用VB调用Webservice

关键字:VB,WebService,C#,

调试环境:vb6+sp5 , Vs.net 2005 , SOAP Toolkit 3.0

 

在VB中调用Webservice先要安装Soap Toolkit,可以到微软的网站上下载,下载地址为:http://www.microsoft.com/downloads/details.aspx?familyid=BA611554-5943-444C-B53C-C0A450B7013C&displaylang=en

 

1 首先用Vs.net建立WebService工程,添加以下调试代码

    [WebMethod]
    public string HelloWorld() {
        return "Hello World";
    }

    [WebMethod]
    public int Add(int x,int y)
    {
        return x + y;
    }

 

 

2 新建VB工程,添加对soap toolkit的引用(Microsoft Soap Type Library 3.0)

3 在VB中添加以下代码:

Private Sub Command1_Click()
    Dim soapClient As New SoapClient30
    Dim text As String

    '注:此为本地的WebService地址,实际应用中会有不同

    soapClient.MSSoapInit "http://localhost:2239/DemoWebService/Service.asmx?WSDL"

    text = soapClient.HelloWorld '此处直接写服务端方法名
    MsgBox text
   
    Dim total As Integer
   
    total = soapClient.Add(2, 3)
   
    MsgBox total
End Sub