| ASP.NET创建Web服务之设计方针 |
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来源:互联网 |
时间:2006-04-14 |
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旅娴拇胧纠允救绾卧诳突вτ贸绦蛏鲜褂肈uration属性来指定输出高速缓冲为60秒。
[C#] <%@ Page Language="C#" %> <%@ Import Namespace="System.Net" %> <%@ OutputCache Duration="60" VaryByParam="none" %> <html> <script language="C#" runat="server"> void EnterBtn_Click(Object Src, EventArgs e) { MyMath.Math math = new MyMath.Math(); // Call the XML Web service. float total = math.Add(Convert.ToInt32(Num1.Text), Convert.ToInt32(Num2.Text)); // 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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