使用谷歌分析时，无效的凭据错误是comimg

Question

1. 我正在使用Google Analytics API来显示Google分析数据，但我是 在行invalid credential error
获取AccountFeed accountFeed = service.Query(query);
2. gmail用户名和密码以及Google Analytics凭据是否相同？
3. 在AccountFeed accountFeed = service.Query（query）;
中必须传递哪些凭据

代码：

public partial class _Default : System.Web.UI.Page
{
    Int32 _intVisists = 0;
    Int32 _intPageViewVisit = 0;
    protected void Page_Load(object sender, EventArgs e)
    {
        RefreshFeed();
}
private void RefreshFeed()
{

    string userName = "xyz@gmail.com";
    string passWord = "xyz";
    string gkey = "AIzaSfafaG_JUzUqkKsPd0-mPBZO4GrDF1hbbbb";
     string dataFeedUrl = "https://www.google.com/analytics/feeds/data" + gkey;


    AccountQuery query = new AccountQuery();

    AnalyticsService service = new AnalyticsService(AnalyticsService.GAnalyticsService);
    if (!string.IsNullOrEmpty(userName))
    {
        service.setUserCredentials(userName, passWord);
    }
    string str = "";
    AccountFeed accountFeed = service.Query(query);
    foreach (AccountEntry entry in accountFeed.Entries)
    {
        str = entry.ProfileId.Value;
    }


    DataQuery query1 = new DataQuery(dataFeedUrl);

    query1.Ids = str;
    query1.Metrics = "ga:visits,ga:bounces";
    query1.Sort = "ga:visits";
    query1.GAStartDate = DateTime.Now.AddMonths(-1).AddDays(-2).ToString("yyyy-MM-dd");
    query1.GAEndDate = DateTime.Now.AddDays(-3).ToString("yyyy-MM-dd");
    query1.StartIndex = 1;

    int cnt = 0;
    double incntDone = 0.0;
    DataFeed dataFeed11 = service.Query(query1);
    foreach (DataEntry entry in dataFeed11.Entries)
    {
        string st = entry.Title.Text;
        string ss = entry.Metrics[0].Value;


        string _str = DisplayPercentage(double.Parse(entry.Metrics[1].Value) / int.Parse(entry.Metrics[0].Value));
        double incnt = double.Parse(entry.Metrics[1].Value) / double.Parse(entry.Metrics[0].Value);
        incntDone = Math.Round(incnt * 100, 2);
        cnt = cnt + int.Parse(ss);

    }
    Response.Write("Bounce Rate : " + incntDone + "<br/>");


    query1.Ids = str;
    query1.Metrics = "ga:pageviews";
    query1.Sort = "ga:pageviews";
    query1.GAStartDate = DateTime.Now.AddMonths(-1).AddDays(-2).ToString("yyyy-MM-dd");
    query1.GAEndDate = DateTime.Now.AddDays(-3).ToString("yyyy-MM-dd");

    DataFeed dataFeedpageviews = service.Query(query1);
    foreach (DataEntry entry in dataFeedpageviews.Entries)
    {
        string st = entry.Title.Text;
        string ss = entry.Metrics[0].Value;
        _intPageViewVisit = Int32.Parse(ss);
        Response.Write("<br/>");
        Response.Write("Total PageView : " + ss);
        Response.Write("<br/>");
    }


    query1.Ids = str;
    query1.Metrics = "ga:visits";//visitors
    query1.Sort = "ga:visits";
    query1.GAStartDate = DateTime.Now.AddMonths(-1).AddDays(-2).ToString("yyyy-MM-dd");
    query1.GAEndDate = DateTime.Now.AddDays(-3).ToString("yyyy-MM-dd");
    query1.StartIndex = 1;
    DataFeed dataFeedVisits = service.Query(query1);
    foreach (DataEntry entry in dataFeedVisits.Entries)
    {
        string st = entry.Title.Text;
        string ss = entry.Metrics[0].Value;
        _intVisists = Int32.Parse(ss);
        Response.Write("<br/>");
        Response.Write("Total Visits : " + ss);
        Response.Write("<br/>");
    }

Answer 1

1. 无效的凭据错误意味着您未正确进行身份验证。 Google AnalyticsAPI需要Oauth2或服务帐户身份验证。您似乎尝试使用登录名和密码登录，这称为客户登录，不适用于Google AnalyticsAPI
2. 没有Gmail用户名无效Google Analytics凭据。
3. 您应该将其传递给有效的UserCredential

登录示例：

/// <summary>
        /// Authenticate to Google Using Oauth2
        /// Documentation https://developers.google.com/accounts/docs/OAuth2
        /// </summary>
        /// <param name="clientId">From Google Developer console https://console.developers.google.com</param>
        /// <param name="clientSecret">From Google Developer console https://console.developers.google.com</param>
        /// <param name="userName">A string used to identify a user.</param>
        /// <returns></returns>
        public static AnalyticsService AuthenticateOauth(string clientId, string clientSecret, string userName)
        {

            string[] scopes = new string[] { AnalyticsService.Scope.Analytics,  // view and manage your analytics data
                                             AnalyticsService.Scope.AnalyticsEdit,  // edit management actives
                                             AnalyticsService.Scope.AnalyticsManageUsers,   // manage users
                                             AnalyticsService.Scope.AnalyticsReadonly};     // View analytics data

            try
            {
                // here is where we Request the user to give us access, or use the Refresh Token that was previously stored in %AppData%
                UserCredential credential = GoogleWebAuthorizationBroker.AuthorizeAsync(new ClientSecrets { ClientId = clientId, ClientSecret = clientSecret }
                                                                                             , scopes
                                                                                             , userName
                                                                                             , CancellationToken.None
                                                                                             , new FileDataStore("Daimto.GoogleAnalytics.Auth.Store")).Result;

                AnalyticsService service = new AnalyticsService(new BaseClientService.Initializer()
                {
                    HttpClientInitializer = credential,
                    ApplicationName = "Analytics API Sample",
                });
                return service;
            }
            catch (Exception ex)
            {

                Console.WriteLine(ex.InnerException);
                return null;

            }

        }

代码从Google Analytics .net sample project

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