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)+"
"+aa.InputYouName(Header,"harry"));
            Console.Read();
        }
    }
}