C# 通过OneDrive SDK上载文件时的文件路径

使用OneDrive SDK上载文件

此时，您必须传递文件路径，但使用代码上载需要很长时间

即使通过临时文件路径，我也可以上载文件吗

public async Task<JObject> UploadLargeFiles(string upn, IFormFile files)
    {
        var jObject = new JObject();
        int fileSize = Convert.ToInt32(files.Length);

        var folderName = Path.Combine("wwwroot", "saveLargeFiles");
        var pathToSave = Path.Combine(System.IO.Directory.GetCurrentDirectory(), folderName);
        var fullPath = "";

        if (files.Length > 0)
        {
            var fileName = files.FileName;
            fullPath = Path.Combine(pathToSave, fileName);

            using (var stream = new FileStream(fullPath, FileMode.Create))
                files.CopyTo(stream);
        }

        var filePath = fullPath;

        var fileStream = System.IO.File.OpenRead(filePath);
        GraphServiceClient client = await MicrosoftGraphClient.GetGraphServiceClient();

        var uploadProps = new DriveItemUploadableProperties
        {
            ODataType = null,
            AdditionalData = new Dictionary<string, object>
            {
                { "@microsoft.graph.conflictBehavior", "rename" }
            }
        };

        var item = this.SelectUploadFolderID(upn).Result;
        var uploadSession = await client.Users[upn].Drive.Items[item].ItemWithPath(files.FileName).CreateUploadSession(uploadProps).Request().PostAsync();

        int maxChunkSize = 320 * 1024;
        var uploadTask = new LargeFileUploadTask<DriveItem>(uploadSession, fileStream, maxChunkSize);

        var response = await uploadTask.UploadAsync();

        if (response.UploadSucceeded)
        {
            return 
        }
        else
        {
            return null;
        }
    }

当前，我在将文件保存到服务器后获取文件路径

在这种情况下，速度问题会引发问题

有没有办法查看临时文件路径

public async Task<JObject> UploadLargeFiles(string upn, IFormFile files)
    {
        var jObject = new JObject();
        int fileSize = Convert.ToInt32(files.Length);

        var folderName = Path.Combine("wwwroot", "saveLargeFiles");
        var pathToSave = Path.Combine(System.IO.Directory.GetCurrentDirectory(), folderName);
        var fullPath = "";

        if (files.Length > 0)
        {
            var fileName = files.FileName;
            fullPath = Path.Combine(pathToSave, fileName);

            using (var stream = new FileStream(fullPath, FileMode.Create))
                files.CopyTo(stream);
        }

        var filePath = fullPath;

        var fileStream = System.IO.File.OpenRead(filePath);
        GraphServiceClient client = await MicrosoftGraphClient.GetGraphServiceClient();

        var uploadProps = new DriveItemUploadableProperties
        {
            ODataType = null,
            AdditionalData = new Dictionary<string, object>
            {
                { "@microsoft.graph.conflictBehavior", "rename" }
            }
        };

        var item = this.SelectUploadFolderID(upn).Result;
        var uploadSession = await client.Users[upn].Drive.Items[item].ItemWithPath(files.FileName).CreateUploadSession(uploadProps).Request().PostAsync();

        int maxChunkSize = 320 * 1024;
        var uploadTask = new LargeFileUploadTask<DriveItem>(uploadSession, fileStream, maxChunkSize);

        var response = await uploadTask.UploadAsync();

        if (response.UploadSucceeded)
        {
            return 
        }
        else
        {
            return null;
        }
    }

public异步任务上传大文件（字符串upn，格式文件）
{
var jObject=new jObject（）；
int fileSize=Convert.ToInt32（files.Length）；
var folderName=Path.Combine（“wwwroot”、“savelagefiles”）；
var pathToSave=Path.Combine（System.IO.Directory.GetCurrentDirectory（），folderName）；
var fullPath=“”；
如果（files.Length>0）
{
var fileName=files.fileName；
fullPath=Path.Combine（路径保存，文件名）；
使用（var stream=newfilestream（fullPath，FileMode.Create））
文件.CopyTo（流）；
}
var filePath=fullPath；
var fileStream=System.IO.File.OpenRead（文件路径）；
GraphServiceClient=等待MicrosoftGraphClient.GetGraphServiceClient（）；
var uploadProps=新的DriveItemUploadableProperties
{
ODataType=null，
AdditionalData=新字典
{
{“@microsoft.graph.conflictBehavior”，“重命名”}
}
};
var item=this.SelectUploadFolderID（upn）.Result；
var uploadSession=wait client.Users[upn].Drive.Items[item].ItemWithPath（files.FileName）.CreateUploadSession（uploadProps.Request（）.PostAsync（）；
int maxChunkSize=320*1024；
var uploadTask=new LargeFileUploadTask（uploadSession、fileStream、maxChunkSize）；
var response=await uploadTask.UploadAsync（）；
if（response.uploadsuccessed）
{
返回
}
其他的
{
返回null；
}
}

服务器的磁盘可能不是导致此速度变慢的原因。默认情况下，上传的文件存储在一个临时目录中，您可以像您一样使用

CopyTo（FileStream）

永久保存该目录

您可以跳过此步骤并调用

ifformfile.OpenReadStream（）

获取临时文件的流，然后将其传递给

LargeFileUploadTask

关键是，上传到OneDrive可能需要花费最多的时间。根据您的设置，您可能希望将文件保存到队列目录（请求完成后临时文件将被删除），并让后台服务读取该队列并将其上载到OneDrive