/// <summary>
/// 封装的上传图片到OSS的方法
/// 固定上传到 /upload/{year}{month}/{md5}.{type}
/// </summary>
/// <param name="setting"></param>
/// <param name="file"></param>
/// <returns></returns>
public static string UploadImage(this OSSSetting setting, IFormFile file)
{
if (file == null)
{
throw new NullReferenceException();
}
string fix = file.FileName[file.FileName.LastIndexOf('.')..][1..];
/// <summary>
/// 分片断点续传
/// </summary>
/// <param name="setting"></param>
/// <param name="objectName"></param>
/// <param name="binaryData"></param>
/// <param name="index">第多少个分片（从1开始）</param>
/// <param name="uploadId">如果是第二个分片则必须传入</param>
/// <returns></returns>
public static PartETag Upload(this OSSSetting setting, string objectName, byte[] binaryData, int index, ref string uploadId)
{
OssClient client = new OssClient(setting.endpoint, setting.accessKeyId, setting.accessKeySecret);
PartETag partETagResult;
if (index == 1)
{
var request = new InitiateMultipartUploadRequest(setting.bucketName, objectName, new ObjectMetadata
{
ExpirationTime = DateTime.Now.AddDays(1)
});
var result = client.InitiateMultipartUpload(request);
uploadId = result.UploadId;
}
using (MemoryStream requestContent = new(binaryData))
{
var result = client.UploadPart(new UploadPartRequest(setting.bucketName, objectName, uploadId)
{
InputStream = requestContent,
PartSize = binaryData.Length,
PartNumber = index
});
partETagResult = result.PartETag;
}
return(partETagResult);
}
/// <summary>
/// 删除文件
/// </summary>
public static bool Delete(this OSSSetting setting, string objectName)
{
OssClient client = new OssClient(setting.endpoint, setting.accessKeyId, setting.accessKeySecret);
DeleteObjectResult result = client.DeleteObject(setting.bucketName, objectName);
return(true);
}
/// <summary>
/// 设定文件的过期时间
/// </summary>
/// <param name="setting"></param>
/// <param name="objectName"></param>
/// <param name="expireTime">为null是永不过期</param>
/// <returns></returns>
public static bool SetExpirationTime(this OSSSetting setting, string objectName, DateTime?expireTime = null)
{
expireTime ??= DateTime.MaxValue;
OssClient client = new OssClient(setting.endpoint, setting.accessKeyId, setting.accessKeySecret);
client.ModifyObjectMeta(setting.bucketName, objectName, new ObjectMetadata
{
ExpirationTime = expireTime.Value
});
return(true);
}
/// <summary>
/// 分片断点续传完成后传入
/// </summary>
/// <param name="setting"></param>
/// <param name="objectName"></param>
/// <param name="uploadId">如果是第二个分片则必须传入</param>
/// <param name="partETags"> </param>
/// <returns></returns>
public static void UploadFinish(this OSSSetting setting, string objectName, string uploadId, List <PartETag> partETags)
{
OssClient client = new(setting.endpoint, setting.accessKeyId, setting.accessKeySecret);
var completeMultipartUploadRequest = new CompleteMultipartUploadRequest(setting.bucketName, objectName, uploadId);
foreach (var partETag in partETags.OrderBy(o => o.PartNumber))
{
completeMultipartUploadRequest.PartETags.Add(partETag);
}
client.CompleteMultipartUpload(completeMultipartUploadRequest);
}
/// <summary>
/// 上传本地文件
/// </summary>
/// <param name="setting"></param>
/// <param name="objectName">远程文件名（包含路径），不能以/开头</param>
/// <param name="localFilename">本地路径</param>
/// <param name="message"></param>
/// <returns></returns>
public static bool Upload(this OSSSetting setting, string objectName, string localFilename, out string?message)
{
message = null;
try
{
OssClient client = new OssClient(setting.endpoint, setting.accessKeyId, setting.accessKeySecret);
PutObjectResult result = client.PutObject(setting.bucketName, objectName, localFilename);
return(true);
}
catch (Exception ex)
{
message = "OSS错误:" + ex.Message;
return(false);
}
}
/// <summary>
/// 上传二进制内容
/// </summary>
/// <param name="setting"></param>
/// <param name="objectName">远程文件名（包含路径），不能以/开头</param>
/// <param name="binaryData">二进制内容</param>
/// <param name="message"></param>
/// <returns></returns>
public static bool Upload(this OSSSetting setting, string objectName, byte[] binaryData, ObjectMetadata metadata, out string?message)
{
message = null;
try
{
using (MemoryStream requestContent = new MemoryStream(binaryData))
{
OssClient client = new OssClient(setting.endpoint, setting.accessKeyId, setting.accessKeySecret);
PutObjectResult result = client.PutObject(setting.bucketName, objectName, requestContent, metadata);
return(true);
}
}
catch (Exception ex)
{
message = "OSS错误:" + ex.Message;
return(false);
}
}