2013-09-05 91 views
1

我正嘗試在SharePoint 2013中使用在SharePoint 2013服務器中部署的自定義WCF Web服務創建新的術語集。我寫下面的代碼來創建術語集。TermSet Creation使用自定義webservice在SharePoint 2013中給出錯誤

SPSecurity.RunWithElevatedPrivileges(delegate() 
      { 
       using (Impersonator imp = new Impersonator("Username", "Domain", "Password")) 
       { 
        using (SPSite site = new SPSite("http://server:8002/sites/site/")) 
        { 
         site.AllowUnsafeUpdates = true; 
         TaxonomySession session = new TaxonomySession(site); 
         TermStore termStore = session.TermStores["Managed Metadata Service"]; 
         var termStoreAdmin = termStore.TermStoreAdministrators.Where(obj => obj.PrincipalName.Contains("domain\\username")).FirstOrDefault(); 

         if (termStoreAdmin == null) 
          termStore.AddTermStoreAdministrator("domain\\username"); 

         Group group = termStore.GetGroup(new Guid(groupGuid)); 
         if (group != null && !string.IsNullOrEmpty(termSetName)) 
         { 
          TermSet termset = group.TermSets.FirstOrDefault(obj => obj.Name.Equals(termSetName)); 
          if (termset == null) 
          { 
           termset = group.CreateTermSet(termSetName); 
           termSetGuid = termset.Id.ToString(); 
          } 
          SetupNavTermSet(termset, session, site.OpenWeb()); 
         } 
         termStore.CommitAll(); 
        } 
       } 
      }); 

我從使用soap消息的silverlight代碼調用此方法。在調用此代碼時,我在執行group.CreateTermSet(termSetName);行時遇到了異常。

的錯誤是:

Error Message : Value cannot be null. 
Source  : Microsoft.SharePoint 
Error Details :  at Microsoft.SharePoint.Administration.Claims.SPClaimProviderManager.GetUserIdentifierEncodedClaim(IIdentity identity) 
    at Microsoft.SharePoint.Taxonomy.Internal.CommonUtilities.GetCurrentUserName() 
    at Microsoft.SharePoint.Taxonomy.TaxonomySession.get_CurrentUserName() 
    at Microsoft.SharePoint.Taxonomy.Group.CreateTermSet(String name, Guid newTermSetId, Int32 lcid) 
    at Microsoft.SharePoint.Taxonomy.Group.CreateTermSet(String name) 
    at SplitVisionMetadataManagement.CustomManageMetaDataWCFService.<>c__DisplayClassc.<CreateTaxonomyTermSet>b__8() 

有沒有人有這個問題,一個解決辦法?

回答

2

我也遇到了同樣的問題,並發現Microsoft.SharePoint.Taxonomy.Internal.CommonUtilities.GetCurrentUserName()方法使用HttpContext.Current.User安全主體來獲取用戶名。

我在Windows窗體應用程序中使用類似的代碼,因此HttpContext是空的。我通過手動設置上下文和用戶做了一個解決方法,如下所示。

if (HttpContext.Current == null) 
{ 
    HttpRequest request = new HttpRequest("", SiteURL, ""); 
    HttpContext.Current = new HttpContext(request, new HttpResponse(TextWriter.Null)); 
    HttpContext.Current.User = System.Threading.Thread.CurrentPrincipal; 
} 

SPSecurity.RunWithElevatedPrivileges(delegate() 
{ 
    using (SPSite site = new SPSite(SiteURL)) 
    { 
     using (SPWeb web = site.OpenWeb()) 
     { 
      if (HttpContext.Current.Items["HttpHandlerSPWeb"] == null) 
       HttpContext.Current.Items["HttpHandlerSPWeb"] = web; 

      // Your SharePoint Term Creation code 
     } 
    } 
}); 

在你的情況下,你似乎使用基於聲明的身份驗證,因此在聲明提供程序返回名稱時出現問題。您的HTTP上下文將是WCF運行的上下文。您可能需要從這些角度進一步調查。

以上知識應該有助於您進一步瞭解它。

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