尝试通过SharePointClient
upload
远程在线上传文件到SharePoint时,我遇到的文件大小限制为2mb。从我的搜索来看,人们似乎已经使用PowerShell
克服了这个限制,但是有没有办法使用.Net C#中的原生SharePointClient
包来克服这个限制?这是我现有的代码示例:
using (var ctx = new Microsoft.SharePoint.Client.ClientContext(httpUrl))
{
ctx.Credentials = new Microsoft.SharePoint.Client.SharePointOnlineCredentials(username, passWord);
try
{
string uploadFilename = string.Format(@"{0}.{1}", string.IsNullOrWhiteSpace(filename) ? submissionId : filename, formatExtension);
logger.Info(string.Format("SharePoint uploading: {0}", uploadFilename));
new SharePointClient().Upload(ctx, sharePointDirectoryPath, uploadFilename, formatData);
}
}
我从以下网站上读到,您可以使用ContentStream,但不确定如何映射到SharePointClient
(如果有的话):
https://msdn.microsoft.com/en-us/pnp_articles/upload-large-files-sample-app-for-sharepoint
更新:
根据我现在建议的解决方案:
public void UploadDocumentContentStream(ClientContext ctx, string libraryName, string filePath)
{
Web web = ctx.Web;
using (FileStream fs = new FileStream(filePath, FileMode.Open))
{
FileCreationInformation flciNewFile = new FileCreationInformation();
// This is the key difference for the first case - using ContentStream property
flciNewFile.ContentStream = fs;
flciNewFile.Url = System.IO.Path.GetFileName(filePath);
flciNewFile.Overwrite = true;
List docs = web.Lists.GetByTitle(libraryName);
Microsoft.SharePoint.Client.File uploadFile = docs.RootFolder.Files.Add(flciNewFile);
ctx.Load(uploadFile);
ctx.ExecuteQuery();
}
}
仍然不能正常工作,但会在成功时再次更新。目前的错误是:
Could not find file 'F:approot12-09-2017.zip'.
最后
我正在使用来自Amazon S3的文件,因此解决方案是获取我的字节数据并将其传输到呼叫:
public void UploadDocumentContentStream(ClientContext ctx, string libraryName, string filename, byte[] data)
{
Web web = ctx.Web;
FileCreationInformation flciNewFile = new FileCreationInformation();
flciNewFile.ContentStream = new MemoryStream(data); ;
flciNewFile.Url = filename;
flciNewFile.Overwrite = true;
List docs = web.Lists.GetByTitle(libraryName);
Microsoft.SharePoint.Client.File uploadFile = docs.RootFolder.Files.Add(flciNewFile);
ctx.Load(uploadFile);
ctx.ExecuteQuery();
}
答案 0 :(得分:1)
您可以使用FileCreationInformation
创建新文件,并通过FileStream
提供内容。然后,您可以将文件添加到目标库。这可以帮助您在使用上传方法时遇到2mb左右的限制。示例如下:
FileCreationInformation newFile = new FileCreationInformation
{
Url = fileName,
Overwrite = false,
ContentStream = new FileStream(fileSourcePath, FileMode.Open)
};
var createdFile = list.RootFolder.Files.Add(newFile);
ctx.Load(createdFile);
ctx.ExecuteQuery();
在示例中,目标库为list
,您需要首先获得对此的引用。如果需要,我可以告诉你如何做到这一点。