通過名稱從共享點獲取文件URL

Question

我可以將文檔保存在Sharepoint文檔中。 保存文檔后，我希望能夠獲取該文檔的網址，以便與用戶共享該網址。

這是我用來保存文檔的代碼：

using (ClientContext clientContext = new ClientContext("https://mydomain.sharepoint.com"))
{
    SecureString passWord = new SecureString();
    foreach (char c in "mypassword".ToCharArray()) passWord.AppendChar(c);
    clientContext.Credentials = new SharePointOnlineCredentials("myaccount@mydomain.com", passWord);
    Web web = clientContext.Web;
    FileCreationInformation newFile = new FileCreationInformation();
    //newFile.Content = System.IO.File.ReadAllBytes(filePath);
    byte[] docData = null;
    byte[] buffer = new byte[16 * 1024];
    using (MemoryStream ms = new MemoryStream())
    {
        int read;
        while ((read = fileStream.Read(buffer, 0, buffer.Length)) > 0)
        {
            ms.Write(buffer, 0, read);
        }
        docData = ms.ToArray();
    }
    newFile.Content = docData;
    newFile.Url = originalFileName;

    List docs = web.Lists.GetByTitle("DOCUMENTS");
    Microsoft.SharePoint.Client.File uploadFile = docs.RootFolder.Files.Add(newFile);
    clientContext.ExecuteQuery();
}

文件上載后，如何獲取該URL？

Answer 1

您可以使用以下3種方法之一。 要共享文檔，您可以生成匿名鏈接，帶有到期日期的匿名鏈接或共享並通過電子郵件發送。

List docs = web.Lists.GetByTitle("DOCUMENTS");
Microsoft.SharePoint.Client.File uploadFile = docs.RootFolder.Files.Add(newFile);
clientContext.ExecuteQuery();

clientContext.Load(uploadFile.ListItemAllFields, item => item["EncodedAbsUrl"]);
clientContext.ExecuteQuery();

var fileUrl = uploadFile.ListItemAllFields["EncodedAbsUrl"].ToString();

string link = clientContext.Web.CreateAnonymousLinkForDocument(fileUrl, ExternalSharingDocumentOption.View);

string linkwithExpiration = clientContext.Web.CreateAnonymousLinkWithExpirationForDocument(fileUrl, ExternalSharingDocumentOption.Edit, DateTime.Now.AddMonths(1));

SharingResult result = clientContext.Web.ShareDocument(fileUrl, "someone@example.com", ExternalSharingDocumentOption.View, true, "Doc shared programmatically");

確保外部共享功能已打開。

參考- 在SPO中打開外部共享

Answer 2

要獲取上傳文件的網址，您可以利用以下屬性：

• EncodedAbsUrl獲取文件的絕對URL
• EncodedAbsUrl獲取文件的服務器相對URL

文件上傳后，他們需要明確請求：

var uploadFile = list.RootFolder.Files.Add(fileInfo);
ctx.Load(uploadFile.ListItemAllFields,item => item["EncodedAbsUrl"], item => item["FileRef"]);
ctx.ExecuteQuery();

例

var fileInfo = new FileCreationInformation();
fileInfo.Content = System.IO.File.ReadAllBytes(filePath);
fileInfo.Url = Path.GetFileName(filePath);

var list = ctx.Web.Lists.GetByTitle(listTitle);
var uploadFile = list.RootFolder.Files.Add(fileInfo);
ctx.Load(uploadFile.ListItemAllFields,item => item["EncodedAbsUrl"], item => item["FileRef"]);
ctx.ExecuteQuery();

Console.WriteLine(uploadFile.ListItemAllFields["EncodedAbsUrl"]);
Console.WriteLine(uploadFile.ListItemAllFields["FileRef"]);

更新

要獲取文檔顯示形式的網址，您可以

ctx.Load(list, l => l.DefaultDisplayFormUrl);
ctx.Load(uploadFile.ListItemAllFields,item => item.Id);
ctx.Load(ctx.Site, s => s.Url);
ctx.ExecuteQuery();

var itemUrl = String.Format("{0}{1}?ID={2}",ctx.Site.Url,list.DefaultDisplayFormUrl, uploadFile.ListItemAllFields.Id);