// Display the results in a Label control.
Total.Text = "Total: " total.ToString();
}
</script>
<body>
<form action="MathClient.aspx" runat=server>
<font face="Verdana">
Enter the two numbers you want to add and press
the Total button.
<p>
Number 1:
<asp:textbox id="Num1" runat=server/>
Number 2:
<asp:textbox id="Num2" runat=server/>
= <asp:button id="Total_Button" text="Total" OnClick="EnterBtn_Click" runat=server/>
<p>
<asp:label id="Total" runat=server/>
</font>
</form>
</body>
</html>
[Visual Basic]
<%@ Page Language="VB" %>
<%@ Import Namespace="System.Net" %>
<%@ OutputCache Duration="60" VaryByParam="none" %>
<html>
<script language="VB" runat="server">
Sub EnterBtn_Click(Src As Object, e As EventArgs)
Dim math As New MyMath.Math()
' Call the XML Web service.
Dim addtotal As Single = math.Add(Convert.ToInt32(Num1.Text), Convert.ToInt32(Num2.Text))
' Display the results in a Label control.
Total.Text = "Total: " & addtotal.ToString()
End Sub
</script>
<body>
<form action="MathClient.aspx" runat=server>
<font face="Verdana">
Enter the two numbers you want to add and press
the Total button.
<p>
Number 1:
<asp:textbox id="Num1" runat=server/>
Number 2:
<asp:textbox id="Num2" runat=server/>
= <asp:button id="Total_Button" text="Total" OnClick="EnterBtn_Click" runat=server/>
<p>
<asp:label id="Total" runat=server/>
</font>
</form>
</body>
</html>
你还可以使用WebMethod属性类的CacheDuration属性来在服务器上允许高速缓冲。下面的代码示例显示如何在XML Web服务方法上使用CacheDuration属性来指定输出高速缓冲为60秒。
[C#]
<%@ WebService Language="C#" Class="MathService" %>
using System;
using System.Web.Services;
public class MathService : WebService {
[WebMethod(CacheDuration=60)]
public float Add(float a, float b)
{
return a b;
}
[WebMethod(CacheDuration=60)]
public float Subtract(float a, float b)
{
return a - b;
}
[WebMethod(CacheDuration=60)]
public float Multiply(float a, float b)
{
return a * b;
}
[WebMethod(CacheDuration=60)]
public float Divide(float a, float b)
{
if (b==0) return -1;
return a / b;
}
}
[Visual Basic]
<%@ WebService Language="VB" Class="MathService" %>
Imports System
Imports System.Web.Services
Public Class MathService
Inherits WebService
<WebMethod(CacheDuration := 60)> _
Public Function Add(a As Single, b As Single) As Single
Return a b
End Function
<WebMethod(CacheDuration := 60)> _
Public Function Subtract(a As Single, b As Single) As Single
Return a - b
End Function
<WebMethod(CacheDuration := 60)> _
Public Function Multiply(a As Single, b As Single) As Single
Return a * b
End Function
<WebMethod(CacheDuration := 60)> _
Public Function Divide(a As Single, b As Single) As Single
If b = 0 Then
Return - 1
End If
Return a / b
End Function
End Class
当设计你的XML Web服务时，努力遵循如何格式化模式的结构。
XML Web服务使用SOAP作为主要的传送和序列化协议。一个SOAP消息由一个可选择的头体和消息体组成。头部分包含可以被Web服务器体系结构处理的信息。SOAP没有定义任何头。消息体部分包含由应用程序处理的信息，例如用于XML Web服务的参数或返回值。
提供用于你的XML Web服务的文档，如一个静态HTML文件，描述你的服务的操作和数据结构。还包括如何使用这个XML Web服务的示例。不要依靠服务描述或服务帮助页面作为你唯一的文档。
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