C#调用Web Service时的身份验证

原理：webservice所在的系统中，在系统域中建立用于登录的软件的用户和密码，软件登录时将用户名、密码和登录的本机的域的名字通过webService的NetworkCredential传递到webService中通过一个方法得到域中的用户、密码和域进行匹配，从而得到是否有权限

webservice代码

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

using System.Data;
using System.Net;
using System.Data.SqlClient;

namespace WebServiceSocket
{
    /// <summary>
    /// Service1 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 Service1 : System.Web.Services.WebService
    {

        /// <summary>
        /// 读取数据表数据统一方法
        /// </summary>
        /// <param name="where">查询条件</param>
        /// <param name="tableName">对应数据表名</param>
        /// <param name="Credential">授权凭证</param>
        /// <returns></returns>
        [WebMethod(Description = "功能：[SQL]读取数据方法，返回值DS", EnableSession = false)]
        public DataSet GetTableDataInfo(string where, string tableName, NetworkCredential Credential)
        {
            try
            {
                string proc = "select * from " + tableName;
                proc = string.Format(proc, where);

                SqlConnection con = new SqlConnection();
                DataSet ds = new DataSet();
                try
                {
                    con = new SqlConnection("server=192.168.*.***;database=****;uid=sa;pwd=****");
                    con.Open();

                    SqlDataAdapter da = new SqlDataAdapter(proc, con);
                    da.SelectCommand.CommandTimeout = ;
                    da.Fill(ds);
                }
                catch
                {
                    ds = null;
                }
                finally
                {
                    con.Close();
                }
                return ds;
            }
            catch { return null; }//, NetworkCredential Credential
        }
    }
}

调用代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net.Sockets;
using System.Net;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;
using System.Runtime.Serialization;

namespace clientWinform
{
    public partial class Form1 : Form
    {

        public Form1()
        {
            InitializeComponent();
        }
private void button2_Click(object sender, EventArgs e)
        {
            //ServiceSocket.Service1SoapClient so = new ServiceSocket.Service1SoapClient();
            //DataSet ds = so.GetTableDataInfo("", "[LYPMMISDB].[Zeda].[tblist]", Credential);
            //dataGridView1.DataSource = ds.Tables[0];

            WebReference.Service1 de = new WebReference.Service1();
            WebReference.NetworkCredential app = new WebReference.NetworkCredential();
            app.UserName = "";
            app.Password = "";
            DataSet ds = de.GetTableDataInfo("", "****", app);
            dataGridView1.DataSource = ds.Tables[];
        }

    }
}

截图：