public IActionResult UploadByFile()
{
// 生成(上传)凭证时需要使用此Mac
// 这个示例单独使用了一个Settings类，其中包含AccessKey和SecretKey
// 实际应用中，请自行设置您的AccessKey和SecretKey
Mac mac = new Mac(accessKey, secretKey);
//你的OSS的名称
string bucket = this.bucket;
string saveKey = Guid.NewGuid() + ".png";
string localFile = "C:\\Users\\86551\\Desktop\\test.png";
// 上传策略，参见
// https://developer.qiniu.com/kodo/manual/put-policy
PutPolicy putPolicy = new PutPolicy();
// 如果需要设置为"覆盖"上传(如果云端已有同名文件则覆盖)，请使用 SCOPE = "BUCKET:KEY"
// putPolicy.Scope = bucket + ":" + saveKey;
putPolicy.Scope = bucket;
// 上传策略有效期(对应于生成的凭证的有效期)
putPolicy.SetExpires(3600);
// 上传到云端多少天后自动删除该文件，如果不设置（即保持默认默认）则不删除
//putPolicy.DeleteAfterDays = 1;
// 生成上传凭证，参见
// https://developer.qiniu.com/kodo/manual/upload-token
string jstr = putPolicy.ToJsonString();
string token = Auth.CreateUploadToken(mac, jstr);
UploadManager um = new UploadManager();
HttpResult result = um.UploadFile(localFile, saveKey, token);
QiNiuFileUploadResponse response = JsonConvert.DeserializeObject <QiNiuFileUploadResponse>(result.Text);
return(Json(result));
}
private string UploadStream(Stream fileStream)
{
Mac mac = new Mac(accessKey, secretKey);
string bucket = this.bucket;
string saveKey = Guid.NewGuid() + ".png";
PutPolicy putPolicy = new PutPolicy();
putPolicy.Scope = bucket;
putPolicy.SetExpires(3600);
string jstr = putPolicy.ToJsonString();
string token = Auth.CreateUploadToken(mac, jstr);
UploadManager um = new UploadManager();
HttpResult result = um.UploadStream(fileStream, saveKey, token);
fileStream.Close();
QiNiuFileUploadResponse response = JsonConvert.DeserializeObject <QiNiuFileUploadResponse>(result.Text);
return(response.key);
}