internal static async Task GetObject(CosXmlServer cosXml, string cosKey)
{
TransferConfig transferConfig = new TransferConfig();
// 初始化 TransferManager
TransferManager transferManager = new TransferManager(cosXml, transferConfig);
String cosPath = cosKey; //对象在存储桶中的位置标识符，即称对象键
string localDir = System.IO.Path.GetTempPath(); //本地文件夹
string localFileName = "my-local-temp-file"; //指定本地保存的文件名
// 下载对象
COSXMLDownloadTask downloadTask = new COSXMLDownloadTask(bucket, cosPath,
localDir, localFileName);
downloadTask.progressCallback = delegate(long completed, long total)
{
Console.WriteLine(String.Format("progress = {0:##.##}%", completed * 100.0 / total));
};
try {
COSXML.Transfer.COSXMLDownloadTask.DownloadTaskResult result = await
transferManager.DownloadAsync(downloadTask);
Console.WriteLine(result.GetResultInfo());
string eTag = result.eTag;
} catch (Exception e) {
Console.WriteLine("CosException: " + e);
}
}
/// 高级接口下载对象
public async void TransferDownloadObject()
{
//.cssg-snippet-body-start:[transfer-download-object]
// 初始化 TransferConfig
TransferConfig transferConfig = new TransferConfig();
// 初始化 TransferManager
TransferManager transferManager = new TransferManager(cosXml, transferConfig);
String bucket = "examplebucket-1250000000"; //存储桶，格式：BucketName-APPID
String cosPath = "exampleobject"; //对象在存储桶中的位置标识符，即称对象键
string localDir = System.IO.Path.GetTempPath(); //本地文件夹
string localFileName = "my-local-temp-file"; //指定本地保存的文件名
// 下载对象
COSXMLDownloadTask downloadTask = new COSXMLDownloadTask(bucket, cosPath,
localDir, localFileName);
downloadTask.progressCallback = delegate(long completed, long total)
{
Console.WriteLine(String.Format("progress = {0:##.##}%", completed * 100.0 / total));
};
try {
COSXML.Transfer.COSXMLDownloadTask.DownloadTaskResult result = await
transferManager.DownloadAsync(downloadTask);
Console.WriteLine(result.GetResultInfo());
string eTag = result.eTag;
} catch (Exception e) {
Console.WriteLine("CosException: " + e);
}
//.cssg-snippet-body-end
}
public static void Download(string bucket, string key, string localDir, string localFileName)
{
COSXMLDownloadTask downloadTask = new COSXMLDownloadTask(bucket, null, key, localDir, localFileName)
{
progressCallback = delegate(long completed, long total)
{
Console.WriteLine(String.Format("progress = {0} / {1} : {2:##.##}%", completed, total, completed * 100.0 / total));
},
successCallback = delegate(CosResult cosResult)
{
COSXML.Transfer.COSXMLDownloadTask.DownloadTaskResult result = cosResult as COSXML.Transfer.COSXMLDownloadTask.DownloadTaskResult;
QLog.D("XIAO", result.GetResultInfo());
Console.WriteLine(result.GetResultInfo());
Console.WriteLine(String.Format("currentThread id = {0}", Thread.CurrentThread.ManagedThreadId));
},
failCallback = delegate(CosClientException clientEx, CosServerException serverEx)
{
if (clientEx != null)
{
QLog.D("XIAO", clientEx.Message);
Console.WriteLine("CosClientException: " + clientEx.StackTrace);
}
if (serverEx != null)
{
QLog.D("XIAO", serverEx.Message);
Console.WriteLine("CosServerException: " + serverEx.GetInfo());
}
Console.WriteLine(String.Format("currentThread id = {0}", Thread.CurrentThread.ManagedThreadId));
}
};
transferManager.Download(downloadTask);
}
public void testDownloadTask()
{
long now = new DateTimeOffset(DateTime.UtcNow).ToUnixTimeMilliseconds();
GetObjectRequest request = new GetObjectRequest(bucket,
commonKey, localDir, localFileName);
request.LimitTraffic(8 * 1000 * 1024);
//执行请求
COSXMLDownloadTask downloadTask = new COSXMLDownloadTask(request);
var autoEvent = new AutoResetEvent(false);
downloadTask.progressCallback = delegate(long completed, long total)
{
Console.WriteLine(String.Format("progress = {0:##.##}%", completed * 100.0 / total));
};
downloadTask.successCallback = delegate(CosResult cosResult)
{
COSXML.Transfer.COSXMLDownloadTask.DownloadTaskResult result = cosResult as COSXML.Transfer.COSXMLDownloadTask.DownloadTaskResult;
Console.WriteLine(result.GetResultInfo());
autoEvent.Set();
Assert.True(cosResult.httpCode == 200);
};
downloadTask.failCallback = delegate(CosClientException clientEx, CosServerException serverEx)
{
if (clientEx != null)
{
Console.WriteLine("CosClientException: " + clientEx);
}
if (serverEx != null)
{
Console.WriteLine("CosServerException: " + serverEx.GetInfo());
}
autoEvent.Set();
Assert.True(false);
};
long costTime = new DateTimeOffset(DateTime.UtcNow).ToUnixTimeMilliseconds() - now;
transferManager.Download(downloadTask);
autoEvent.WaitOne();
}
public async Task DownloadObject(string key, string localDir, string localFileName)
{
var downloadTask = GetDownloadTask(key, localDir, localFileName);
// 初始化 TransferConfig
TransferConfig transferConfig = new TransferConfig();
// 初始化 TransferManager
TransferManager transferManager = new TransferManager(cosXml, transferConfig);
try
{
COSXML.Transfer.COSXMLDownloadTask.DownloadTaskResult result = await transferManager.DownloadAsync(downloadTask);
string eTag = result.eTag;
}
catch (Exception e)
{
logger.LogError(e.ToLogMessage());
}
}