1        /**//// <summary>
 2        /// 服务器网络凭证
 3        /// </summary>
 4        /// <returns></returns>
 5        public static NetworkCredential MyCred()
 6        {
 7            string loginUser = Properties.Settings.Default.UserName;//用户名
 8            string loginPSW = Properties.Settings.Default.UserPSW;//密码
 9            string loginHost = Properties.Settings.Default.HostName;//主机名，可以是IP地址，也可以服务器名称
10            NetworkCredential myCred = new NetworkCredential(loginUser,loginPSW, loginHost);
11            //NetworkCredential myCred = new NetworkCredential("username", "123456", "yourip");//"username", "123456", "yourservername"
12            return myCred;
13        }
14        /**//// <summary>
15        /// 验证是否成功连接到服务器，若连接成功，则返回TRUE
16        /// </summary>
17        /// <param name="url">服务器WebService URL</param>
18        /// <returns></returns>
19        public static bool Credential(string url)
20        {
21           //定义局部变量
22           string url = G_Url;//2009-02-25   服务器验证只验证到机器
23
24            try
25            {
26                if (myWebResponse == null)
27                {
28                    WebRequest myWebRequest = WebRequest.Create(url);//根据URL创建一个连接请求
29                    myWebRequest.Credentials = MyCred();//获取验证的凭证,这是最重要的一句
30                    myWebRequest.Timeout = 20000;//单位为毫秒
31
32                    myWebResponse = myWebRequest.GetResponse();//返回连接成功时的信息
33                }
34            }
35            catch (WebException wex)//无法连接到服务器，可能是因为服务器错误或用户名与密码错误
36            {
37                if (myWebResponse != null)//毁销
38                {
39                    myWebResponse.Close();
40                    myWebResponse = null;
41                }
42
43                return false;
44            }
45            catch (Exception ex)
46            {
47                if (myWebResponse != null)
48                {
49                    myWebResponse.Close();
50                    myWebResponse = null;
51                }
52
53                return false;
54
55            }
56            finally
57            {
58            }
59
60            return true;
61        }
62
63       private static WS_Webasic.WS_Webasic webasic =null;//实现华WS_Webasic.WS_Webasic 
64
65        /**//// <summary>
66        /// WS_Webasic初始化
67        /// </summary>
68        public static WS_Webasic.WS_Webasic WS_Webasic
69        {
70            get
71            {
72                if (webasic == null)//若webasic 为空，则重新实例化，这样可以减少验证的时间，提高效率
73                {
74                    //webasic = new ZEDI.WS_Webasic.WS_Webasic();
75                    //wsBool = Credential(webasic.Url);//URL改为服务器地址 2009-02-25  chhuic@163.com
76                    wsBool = Credential(G_Url); 
77                    if (wsBool == true)  //服务器连接验证通过
78                    {
79                        webasic = new WS_Webasic.WS_Webasic();//实例化
80                        webasic.Credentials = MyCred();//得到服务器连接凭证，这样该WebService可以放心的连接了
81                    }
82                }
83                return webasic;
84            }
85        }