如何在SharePoint中爲匿名用戶允許文件上傳

Question

我想允許匿名用戶上傳SharePoint中的文件。 經過一番研究，我編寫了這個代碼，允許匿名用戶上傳。但匿名用戶無法登錄並被要求登錄。 請幫助我。我的代碼有什麼問題？

public string CreateSPFilet(string spServerURL, string tempLibrary, string folder, Stream fileStream, bool overwrite) 
    { 
     string strError = ""; 
     string fileName = ""; 
     try 
     {     
      if (!SPSite.Exists(new Uri(spServerURL))) 
      { 
       strError += ERROR01; 
      } 
      else 
      { 
       SPSite tempSite = new SPSite(spServerURL); 
       SPUserToken systoken = tempSite.SystemAccount.UserToken; 
       using (SPSite site = new SPSite(spServerURL, systoken)) 
       { 
        SPWeb oWebsite = site.OpenWeb(); 
        SPSecurity.RunWithElevatedPrivileges(delegate() 
        { 
         using (SPSite elevatedSite = new SPSite(site.ID)) 
         { 
          using (SPWeb eevatedWeb = elevatedSite.OpenWeb(oWebsite.ID)) 
          { 
           oWebsite.AllowUnsafeUpdates = true; 
           string targetUrl = SPUrlUtility.CombineUrl(oWebsite.ServerRelativeUrl, tempLibrary); 
           SPFolder target = oWebsite.GetFolder(targetUrl); 
           SPFileCollection files = target.Files; 
           SPFile file = target.Files.Add(fileName, fileStream, overwrite); 
           oWebsite.AllowUnsafeUpdates = false; 
          } 
         } 
        }); 
       } 
      } 

Answer 1

在上次using語句中，您需要使用對提升對象的引用，而不是其他引用。像這樣：

eevatedWeb.AllowUnsafeUpdates = true; 
string targetUrl = SPUrlUtility.CombineUrl(eevatedWeb.ServerRelativeUrl, tempLibrary);         
SPFolder target = eevatedWeb.GetFolder(targetUrl);         
SPFileCollection files = target.Files; 
SPFile file = target.Files.Add(fileName, fileStream, overwrite);         
eevatedWeb.AllowUnsafeUpdates = false; 

您還需要處理對象tempSite和oWebSite，因爲它們不會被上述代碼處置。