public static DownloadResult DownloadObject(DownloadRecord record, String targetFolder, long start = 0, long end = 199)
{
GetObjectRequest getObjectRequest = new GetObjectRequest()
{
BucketName = BosConfig.BucketName, Key = record.CloudFile.Key
};
// 获取 范围内的数据
getObjectRequest.SetRange(start, end);
// 获取Object，返回结果为BosObject对象
try {
BosObject bosObject = GetBosClient().GetObject(getObjectRequest);
Stream stream = bosObject.ObjectContent;
return(FileUtil.saveFileContent(stream, record.FileName, targetFolder));
} catch (BceServiceException BceServiceException) {
if (BceServiceException.Message.IndexOf("The requested range cannot be satisfied") != -1)
{
DownloadResult result2 = new DownloadResult();
result2.state = 1;
return(result2);
}
Console.WriteLine("exception:" + BceServiceException);
}
DownloadResult result = new DownloadResult();
result.state = 2;
return(result);
}
public void TestGetRange()
{
string path = "put_object_ordinary.txt";
File.WriteAllText(path, "data");
FileInfo fileInfo = new FileInfo(path);
string key = "te%%st ";
PutObjectRequest request = new PutObjectRequest()
{
BucketName = this.bucketName,
Key = key,
FileInfo = fileInfo
};
this.client.PutObject(request);
GetObjectRequest getObjectRequest = new GetObjectRequest()
{
BucketName = this.bucketName, Key = key
};
getObjectRequest.SetRange(0, 0);
BosObject bosObject = this.client.GetObject(getObjectRequest);
String content =
Encoding.Default.GetString(IOUtils.StreamToBytes(bosObject.ObjectContent,
bosObject.ObjectMetadata.ContentLength, 8192));
Assert.AreEqual(content, "d");
}
public BosObject GetObject(String bucketName, String objKey)
{
BosClient client = GenerateBosClient();
BosObject obj = client.GetObject(bucketName, objKey);
return(obj);
}
public void TestGetIAOk()
{
string path = "put_object_ordinary.txt";
File.WriteAllText(path, "data");
FileInfo fileInfo = new FileInfo(path);
string key = "te%%st ";
var meta = new ObjectMetadata();
meta.StorageClass = BosConstants.StorageClass.StandardInfrequentAccess;
PutObjectRequest request = new PutObjectRequest()
{
BucketName = this.bucketName,
Key = key,
FileInfo = fileInfo,
ObjectMetadata = meta
};
String eTag = this.client.PutObject(request).ETAG;
Assert.AreEqual(eTag, HashUtils.ComputeMD5Hash(fileInfo));
BosObject bosObject = this.client.GetObject(this.bucketName, key);
String content =
Encoding.Default.GetString(IOUtils.StreamToBytes(bosObject.ObjectContent,
bosObject.ObjectMetadata.ContentLength, 8192));
Assert.AreEqual(content, "data");
Assert.AreEqual(BosConstants.StorageClass.StandardInfrequentAccess,
bosObject.ObjectMetadata.StorageClass);
}
public String readTxtFile(String bucketName, String objKey)
{
BosClient client = GenerateBosClient();
BosObject obj = client.GetObject(bucketName, objKey);
Stream stream = obj.ObjectContent;
StreamReader reader = new StreamReader(stream);
String str = reader.ReadToEnd();
reader.Close();
stream.Close();
return(str);
}
private static void Main(string[] args)
{
BosClient client = GenerateBosClient();
const string bucketName = "sample-bucket-getobject"; //示例Bucket名称
// 初始化：创建示例Bucket和Object
client.CreateBucket(bucketName); //指定Bucket名称
string objectName = "sample";
client.PutObject(bucketName, objectName, "sampledata");
// 1. 获取BosObject对象并通过BosObject的输入流获取内容
BosObject bosObject = client.GetObject(bucketName, objectName);
Stream objectContent = bosObject.ObjectContent;
string content = new StreamReader(objectContent).ReadToEnd();
Console.WriteLine(content); // "sampledata"
// 2. 通过GetObjectRequest只获取部分数据
GetObjectRequest getObjectRequest = new GetObjectRequest()
{
BucketName = bucketName, Key = objectName
};
getObjectRequest.SetRange(0, 5);
bosObject = client.GetObject(getObjectRequest);
objectContent = bosObject.ObjectContent;
content = new StreamReader(objectContent).ReadToEnd();
Console.WriteLine(content); // "sample"
// 3. 直接通过GetObjectContent获取byte[]内容
byte[] bytes = client.GetObjectContent(bucketName, objectName);
content = Encoding.Default.GetString(bytes);
Console.WriteLine(content); // "sampledata"
// 4. 将object内容下载到文件
FileInfo fileInfo = new FileInfo("d:\\lzb\\sample.txt");
client.GetObject(bucketName, objectName, fileInfo);
content = File.ReadAllText(fileInfo.FullName);
Console.WriteLine(content); // "sampledata"
// 5. 只获取object的meta，不获取内容
ObjectMetadata objectMetadata = client.GetObjectMetadata(bucketName, objectName);
Console.WriteLine(objectMetadata.ContentLength); // "10"
Console.ReadKey();
}
private static void Main(string[] args)
{
BosClient client = GenerateBosClient();
const string bucketName = "sample-base"; //示例Bucket名称
const string objectKey = "sample-object"; //示例object名称
//创建Bucket
client.CreateBucket(bucketName);
//上传Object
FileInfo file = new FileInfo("d:\\lzb\\sample.txt"); //上传文件的目录
PutObjectResponse putObjectFromFileResponse = client.PutObject(bucketName, objectKey, file);
Console.WriteLine(putObjectFromFileResponse.ETAG);
//查看Object
ListObjectsResponse listObjectsResponse = client.ListObjects(bucketName);
foreach (BosObjectSummary objectSummary in listObjectsResponse.Contents)
{
Console.WriteLine("ObjectKey: " + objectSummary.Key);
}
// 获取Object
BosObject bosObject = client.GetObject(bucketName, objectKey);
// 获取ObjectMeta
ObjectMetadata meta = bosObject.ObjectMetadata;
// 获取Object的输入流
Stream objectContent = bosObject.ObjectContent;
// 处理Object
FileStream fileStream = new FileInfo("d:\\lzb\\sampleout.txt").OpenWrite(); //下载文件的目录/文件名
byte[] buffer = new byte[2048];
int count = 0;
while ((count = objectContent.Read(buffer, 0, buffer.Length)) > 0)
{
fileStream.Write(buffer, 0, count);
}
// 关闭流
objectContent.Close();
fileStream.Close();
Console.WriteLine(meta.ETag);
Console.WriteLine(meta.ContentLength);
}
public void TestOrdinary()
{
string path = "put_object_ordinary.txt";
File.WriteAllText(path, "data");
FileInfo fileInfo = new FileInfo(path);
string key = "te%%st ";
PutObjectRequest request = new PutObjectRequest()
{
BucketName = this.bucketName,
Key = key,
FileInfo = fileInfo
};
String eTag = this.client.PutObject(request).ETAG;
Assert.AreEqual(eTag, HashUtils.ComputeMD5Hash(fileInfo));
BosObject bosObject = this.client.GetObject(this.bucketName, key);
String content =
Encoding.Default.GetString(IOUtils.StreamToBytes(bosObject.ObjectContent,
bosObject.ObjectMetadata.ContentLength, 8192));
Assert.AreEqual(content, "data");
}
public void Write()
{
BosClient client = GenerateBosClient();
BosObject obj = client.GetObject("", "");
// obj.ObjectContent
}
