简单WebService案例

WebService

编写简单的加法运算

[WebMethod(Description = "求和的方法")]
    //public string HelloWorld() {
    //    return "Hello World";
    //}
    public  double addition(double i,double j) 
    {
        return i + j;
    }

再编写一个简单的asp页面

        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <asp:Button ID="Button2" runat="server" Text="+" />
        <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
        <asp:Button ID="Button3" runat="server" Text="=" />
        <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
        <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />

后台调用

ServiceReference1.WebService1SoapClient sw = new ServiceReference1.WebService1SoapClient();      
TextBox3.Text = sw.addition(double.Parse(TextBox1.Text),double.Parse(TextBox2.Text)).ToString();