[Web Service]在Web服务中使用SoapHeader本文将演示如何在Web服务中使用SoapHeader，同时介绍在VS2010 IDE中不同的两种引用方式。 1)创建空的ASP.NET网站SoapHeaderTest
2)创建类MyCustomSoapHeader继承自SoapHeader，代码如下: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Services.Protocols; /// <summary> /// My Custom SoapHeader /// </summary> publicclassMyCustomSoapHeader:SoapHeader { /// <summary> /// user name for validation /// </summary> publicstring UserName; /// <summary> /// user password for validation /// </summary> publicstring UserPwd; } 3)新建Web服务MyWebService.asmx；为服务添加自定义字段CutomHeader，并且添加WebMethod Test，设置SoapHeader，最终代码如下:
using System.Web.Services; using System.Web.Services.Protocols;
/// <summary> /// Summary description forMyWebService /// </summary> [WebService(Namespace = "http:///")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] // Toallow this Web Service to be called from script, using ASP.NET AJAX, uncommentthe following line. //[System.Web.Script.Services.ScriptService] publicclassMyWebService : System.Web.Services.WebService { publicMyWebService () { //Uncommentthe following line if using designed components //InitializeComponent(); } /// <summary> /// input custom header /// </summary> public MyCustomSoapHeader header; /// <summary> /// Test method that return user name and password. /// </summary> /// <returns></returns> [WebMethod] [SoapHeader("header",Direction=SoapHeaderDirection.In)] publicstring Test() { if(header == null) return "Header is null"; else return string.Format("Username is {0} and password is {1}.",header.UserName,header.UserPwd); } } 4)新建一个网页Default.aspx 包含一个TextBox和Button控件，当点击Button后，引用Web服务的方法，并将返回值显示在TextBox中，Web页面标记如下: <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> 5)添加对Web Service的引用:
(点击Discover按钮即可查找到本解决方案的Web服务) 修改ButtonTest_Click方法为: protected void ButtonTest_Click(object sender, EventArgs e) { MyWebServiceSoapClient client = new MyWebServiceSoapClient(); MyServiceReference.MyCustomSoapHeader header = new MyServiceReference.MyCustomSoapHeader(); header.UserName = "Raymond"; header.UserPwd = "123"; this.TextBoxReturnString.Text = client.Test(header); } 运行结果:
6)亦可以添加Web服务而非Service Reference: 对于高版本的VSIDE，比如2010，添加Web服务按照如下方式:
相应的方法ButtonTest_Click修改为: protectedvoidButtonTest_Click(object sender, EventArgs e) { MyWebServiceReference.MyWebService service = newMyWebServiceReference.MyWebService(); service.MyCustomSoapHeaderValue = new MyWebServiceReference.MyCustomSoapHeader(); service.MyCustomSoapHeaderValue.UserName = "Raymond"; service.MyCustomSoapHeaderValue.UserPwd= "123"; this.TextBoxReturnString.Text= service.Test(); } 运行结果与之前一致。 |
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来自： 昵称8888806 > 《webservice》
