/// 上传时图片处理
public void UploadWithPicOperation()
{
string bucket = "examplebucket-1250000000"; //存储桶，格式：BucketName-APPID
string key = "exampleobject"; //对象键
string srcPath = @"temp-source-file"; //本地文件绝对路径
//.cssg-snippet-body-start:[upload-with-pic-operation]
PutObjectRequest request = new PutObjectRequest(bucket, key, srcPath);
JObject o = new JObject();
// 不返回原图
o["is_pic_info"] = 0;
JArray rules = new JArray();
JObject rule = new JObject();
rule["bucket"] = bucket;
rule["fileid"] = "desample_photo.jpg";
//处理参数，规则参见：https://cloud.tencent.com/document/product/460/19017
rule["rule"] = "imageMogr2/thumbnail/400x400";
rules.Add(rule);
o["rules"] = rules;
string ruleString = o.ToString(Formatting.None);
request.SetRequestHeader("Pic-Operations", ruleString);
//执行请求
PutObjectResult result = cosXml.PutObject(request);
//.cssg-snippet-body-end
}
public Task PutAsync(string remotename, Stream stream, CancellationToken cancelToken)
{
try
{
cosXml = GetCosXml();
string bucket = _cosOptions.Bucket;
string key = GetFullKey(remotename);
byte[] buffer = new byte[stream.Length];
if (Utility.Utility.ForceStreamRead(stream, buffer, buffer.Length) != stream.Length)
{
throw new Exception("Bad file read");
}
PutObjectRequest request = new PutObjectRequest(bucket, key, buffer);
request.SetSign(TimeUtils.GetCurrentTime(TimeUnit.SECONDS), KEY_DURATION_SECOND);
request.SetRequestHeader("Content-Type", "application/octet-stream");
PutObjectResult result = cosXml.PutObject(request);
}
catch (COSXML.CosException.CosClientException clientEx)
{
Logging.Log.WriteErrorMessage(LOGTAG, "PutAsync", clientEx, "Put failed: {0}", remotename);
throw;
}
catch (COSXML.CosException.CosServerException serverEx)
{
Logging.Log.WriteErrorMessage(LOGTAG, "PutAsync", serverEx, "Put failed: {0}, {1}", remotename, serverEx.GetInfo());
throw;
}
return(Task.CompletedTask);
}
/// 简单上传对象
public void PutObject()
{
//.cssg-snippet-body-start:[put-object]
try
{
string bucket = "examplebucket-1250000000"; //存储桶，格式：BucketName-APPID
string key = "exampleobject"; //对象键
string srcPath = @"temp-source-file"; //本地文件绝对路径
PutObjectRequest request = new PutObjectRequest(bucket, key, srcPath);
//设置进度回调
request.SetCosProgressCallback(delegate(long completed, long total)
{
Console.WriteLine(String.Format("progress = {0:##.##}%", completed * 100.0 / total));
});
//执行请求
PutObjectResult result = cosXml.PutObject(request);
//对象的 eTag
string eTag = result.eTag;
}
catch (COSXML.CosException.CosClientException clientEx)
{
//请求失败
Console.WriteLine("CosClientException: " + clientEx);
}
catch (COSXML.CosException.CosServerException serverEx)
{
//请求失败
Console.WriteLine("CosServerException: " + serverEx.GetInfo());
}
//.cssg-snippet-body-end
}
public string Upload(byte[] data, string fileName)
{
// 上传对象
try
{
var bucket = $"{_cosSettings.BucketName}-{_cosSettings.AppId}"; //存储桶，格式：BucketName-APPID
var cosPath = fileName; // 对象键
var putObjectRequest = new PutObjectRequest(bucket, cosPath, data);
_cosXml.PutObject(putObjectRequest);
return($"https://{bucket}.cos.{_cosSettings.Region}.myqcloud.com/{cosPath}");
}
catch (CosClientException clientEx)
{
//请求失败
_logger.LogError("CosClientException: " + clientEx);
throw;
}
catch (CosServerException serverEx)
{
//请求失败
_logger.LogError("CosServerException: " + serverEx.GetInfo());
throw;
}
}
/// 上传时进行二维码识别
public void UploadWithQRcodeRecognition()
{
string bucket = "examplebucket-1250000000"; //存储桶，格式：BucketName-APPID
string key = "exampleobject"; //对象键
string srcPath = @"temp-source-file"; //本地文件绝对路径
//.cssg-snippet-body-start:[upload-with-QRcode-recognition]
PutObjectRequest request = new PutObjectRequest(bucket, key, srcPath);
JObject o = new JObject();
// 不返回原图
o["is_pic_info"] = 1;
JArray rules = new JArray();
JObject rule = new JObject();
rule["bucket"] = bucket;
rule["fileid"] = "qrcode.jpg";
//处理参数，规则参见：https://cloud.tencent.com/document/product/460/37513
rule["rule"] = "QRcode/cover/<mode>";
rules.Add(rule);
o["rules"] = rules;
string ruleString = o.ToString(Formatting.None);
request.SetRequestHeader("Pic-Operations", ruleString);
//执行请求
PutObjectResult result = cosXml.PutObject(request);
//.cssg-snippet-body-end
}
/// 高级接口上传二进制数据
public void TransferUploadBytes()
{
//.cssg-snippet-body-start:[transfer-upload-bytes]
try
{
string bucket = "examplebucket-1250000000"; //存储桶，格式：BucketName-APPID
string cosPath = "exampleObject"; // 对象键
byte[] data = new byte[1024]; // 二进制数据
PutObjectRequest putObjectRequest = new PutObjectRequest(bucket, cosPath, data);
cosXml.PutObject(putObjectRequest);
}
catch (COSXML.CosException.CosClientException clientEx)
{
//请求失败
Console.WriteLine("CosClientException: " + clientEx);
}
catch (COSXML.CosException.CosServerException serverEx)
{
//请求失败
Console.WriteLine("CosServerException: " + serverEx.GetInfo());
}
//.cssg-snippet-body-end
}
/// 获取预签名上传链接
public void GetPresignUploadUrl()
{
//.cssg-snippet-body-start:[get-presign-upload-url]
try
{
PreSignatureStruct preSignatureStruct = new PreSignatureStruct();
preSignatureStruct.appid = "1250000000"; //腾讯云账号 APPID
preSignatureStruct.region = "COS_REGION"; //存储桶地域
preSignatureStruct.bucket = "examplebucket-1250000000"; //存储桶
preSignatureStruct.key = "exampleobject"; //对象键
preSignatureStruct.httpMethod = "PUT"; //HTTP 请求方法
preSignatureStruct.isHttps = true; //生成 HTTPS 请求 URL
preSignatureStruct.signDurationSecond = 600; //请求签名时间为 600s
preSignatureStruct.headers = null; //签名中需要校验的 header
preSignatureStruct.queryParameters = null; //签名中需要校验的 URL 中请求参数
//上传预签名 URL (使用永久密钥方式计算的签名 URL)
string requestSignURL = cosXml.GenerateSignURL(preSignatureStruct);
string srcPath = @"temp-source-file";//本地文件绝地路径
PutObjectRequest request = new PutObjectRequest(null, null, srcPath);
//设置上传请求预签名 URL
request.RequestURLWithSign = requestSignURL;
//设置进度回调
request.SetCosProgressCallback(delegate(long completed, long total)
{
Console.WriteLine(String.Format("progress = {0:##.##}%", completed * 100.0 / total));
});
//执行请求
PutObjectResult result = cosXml.PutObject(request);
//请求成功
Console.WriteLine(result.GetResultInfo());
}
catch (COSXML.CosException.CosClientException clientEx)
{
//请求失败
Console.WriteLine("CosClientException: " + clientEx);
}
catch (COSXML.CosException.CosServerException serverEx)
{
//请求失败
Console.WriteLine("CosServerException: " + serverEx.GetInfo());
}
//.cssg-snippet-body-end
}
public bool TransferUploadBytes(string cosPath, byte[] data, string filename = "", bool isAttachment = false)
{
//.cssg-snippet-body-start:[transfer-upload-bytes]
try
{
PutObjectRequest putObjectRequest = new PutObjectRequest(options.Bucket, cosPath, data);
if (!string.IsNullOrWhiteSpace(filename))
{
putObjectRequest.SetRequestHeader("Content-Disposition", $"{(isAttachment ? "attachment" : "inline")}; filename={System.Web.HttpUtility.UrlEncode(filename)}");
}
var r = cosXml.PutObject(putObjectRequest);
if (r.IsSuccessful())
{
return(true);
}
logger.LogError(r.httpMessage);
return(false);
//throw new BadRequestException(WFw.Results.OperationResultType.IsErr, r.httpMessage);
}
catch (COSXML.CosException.CosClientException clientEx)
{
logger.LogError(clientEx, $"CosClientException");
return(false);
// throw new BadRequestException(WFw.Results.OperationResultType.IsErr, clientEx.ToString());
//请求失败
//Console.WriteLine("CosClientException: " + clientEx);
}
catch (COSXML.CosException.CosServerException serverEx)
{
logger.LogError(serverEx, $"TransferUploadBytes");
//请求失败
//Console.WriteLine("CosServerException: " + serverEx.GetInfo());
//throw new BadRequestException(WFw.Results.OperationResultType.IsErr, serverEx.GetInfo());
return(false);
}
}
public async Task <bool> PutObjectAsync(string bucketName, string objectName, string filePath, CancellationToken cancellationToken = default)
{
if (string.IsNullOrEmpty(bucketName))
{
throw new ArgumentNullException(nameof(bucketName));
}
if (string.IsNullOrEmpty(objectName))
{
throw new ArgumentNullException(nameof(objectName));
}
if (string.IsNullOrEmpty(filePath))
{
throw new ArgumentNullException(nameof(filePath));
}
if (!File.Exists(filePath))
{
throw new Exception("Upload file is not exist.");
}
bucketName = ConvertBucketName(bucketName);
PutObjectRequest request = new PutObjectRequest(bucketName, objectName, filePath);
PutObjectResult result = _client.PutObject(request);
return(await Task.FromResult(result.IsSuccessful()));
}