WebService应用一例，带有安全验证

1、创建WEB项目，添加WEB服务WebService1.asmx，代码如下：

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Web;
 using System.Web.Services;

 namespace WebService
 {
     /// <summary>
     /// WebService1 的摘要说明
     /// </summary>
     [WebService(Namespace = "http://tempuri.org/")]
     [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
     [System.ComponentModel.ToolboxItem(false)]
     // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。
     // [System.Web.Script.Services.ScriptService]
     public class WebService1 : System.Web.Services.WebService
     {

         //声明Soap头实例
         public MySoapHeader myHeader = new MySoapHeader();

         [System.Web.Services.Protocols.SoapHeader("myHeader")]
         [WebMethod]
         public string HelloWorld()
         {
             if (isAuthorized)
             {
                 return "Hello World";
             }
             else
             {
                 return "You do not have power to do this operation!";
             }
         }

         [System.Web.Services.Protocols.SoapHeader("myHeader")]
         [WebMethod]
         public string InputYouName(string name)
         {
             if (isAuthorized)
             {
                 return "Hello " + name;
             }
             else
             {
                 return "You do not have power to do this operation!";
             }
         }

         /// <summary>
         /// 判断用户是否获得使用授权
         /// </summary>
         public bool isAuthorized
         {
             get
             {
                 if (myHeader.UserName.Equals("pwd") & myHeader.PassWord.Equals("pwd"))
                 {
                      return true;
                 }
                 else
                 {
                     return false;
                 }
             }
         }
     }
 }

2、加入安全验证，在这个web项目中添加一个类文件MySoapHeader.cs，具体代码如下：

 using System;
 using System.Collections.Generic;
 using System.Web;

 namespace WebService
 {
     public class MySoapHeader : System.Web.Services.Protocols.SoapHeader
     {
         private string userName = string.Empty;
         private string passWord = string.Empty;

         /// <summary>
         /// 构造函数
         /// </summary>
         public MySoapHeader() { } /// <summary>
         /// 构造函数
         /// </summary>
         /// <param name="userName">用户名</param>
         /// <param name="passWord">密码</param>
         public MySoapHeader(string userName, string passWord)
         {
             this.userName = userName;
             this.passWord = passWord;
         }

         /// <summary>
         /// 获取或设置用户用户名
         /// </summary>
         public string UserName
         {
             get { return userName; }
             set { userName = value; }
         }

         /// <summary>
         /// 获取或设置用户密码
         /// </summary>
         public string PassWord
         {
             get { return passWord; }
             set { passWord = value; }
         }
     }
 }

3、客户端调用，新建一个项目，创建一个控制台程序，调用示例的详细代码如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace WebServiceControlClient
{
    class Program
    {
        static void Main(string[] args)
        {
            Service.WebService1SoapClient aa = new Service.WebService1SoapClient();
            Service.MySoapHeader Header = new Service.MySoapHeader();
            Header.PassWord = "pwd";
            Header.UserName = "pwd";
            Console.WriteLine(aa.HelloWorld(Header)+"\n"+aa.InputYouName(Header,"harry"));
            Console.Read();
        }
    }
}