C# 调WebService 报请求因 HTTP 状态 401 失败: Unauthorized 的解决

今天在C#中要用到WebService ,报了请求因 HTTP 状态 401 失败: Unauthorized 的问题.

解决如下:

            MakerContact.MakerContact wsMakeContact = new ModelNotice.MakerContact.MakerContact();
            wsMakeContact.Url = ConfigurationManager.AppSettings["MakerContact"];
            wsMakeContact.Credentials = System.Net.CredentialCache.DefaultCredentials;  ---增加这句即解决问题