为Azure下载分配友好名称

Question

我看过这里问的问题： Friendly filename when public download Azure blob 我是一个完全天蓝色的菜鸟，并不知道如何实现任何答案，除了这个看起来像我能处理的东西：

string sasBlobToken = blob.GetSharedAccessSignature(sharedPolicy, new SharedAccessBlobHeaders()
        {
            ContentDisposition = "attachment; filename=" + friendlyFileName
        });


string downloadLink = blob.Uri + sasBlobToken;

我的问题是如何正确设置＆＃39; sharedpolicy变量？我试着在上面一行做一个空白的：

SharedAccessBlobPolicy sharedpolicy = new SharedAccessBlobPolicy();

但是在点击下载链接时我收到了拒绝权限的消息。所以我的问题是如何正确设置sharedpolicy变量？

Answer 1

您收到此错误的原因是您未在SharedAccessBlobPolicy中设置任何权限和权限到期。请尝试以下方法：

            SharedAccessBlobPolicy sharedpolicy = new SharedAccessBlobPolicy()
            {
                Permissions = SharedAccessBlobPermissions.Read,//Read permission because you want to download the file
                SharedAccessExpiryTime = new DateTimeOffset(DateTime.UtcNow.AddHours(1))//The link will expire after 1 hour
            };
            string sasBlobToken = blob.GetSharedAccessSignature(sharedPolicy, new SharedAccessBlobHeaders()
                    {
                        ContentDisposition = "attachment; filename=" + friendlyFileName
                    });


            string downloadLink = blob.Uri + sasBlobToken;