public void asyncGetObjectRangeSample() {
GetObjectRequest get = new GetObjectRequest(testBucket, testObject);
// 设置范围
get.setRange(new Range(0, 99)); // 下载0到99共100个字节，文件范围从0开始计算
OSSAsyncTask task =
oss.asyncGetObejct(
get,
new OSSCompletedCallback<GetObjectRequest, GetObjectResult>() {
@Override
public void onSuccess(GetObjectRequest request, GetObjectResult result) {
// 请求成功
InputStream inputStream = result.getObjectContent();
byte[] buffer = new byte[2048];
int len;
try {
while ((len = inputStream.read(buffer)) != -1) {
// 处理下载的数据
Log.d("asyncGetObjectSample", "read length: " + len);
}
Log.d("asyncGetObjectSample", "download success.");
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
public void onFailure(
GetObjectRequest request,
ClientException clientExcepion,
ServiceException serviceException) {
// 请求异常
if (clientExcepion != null) {
// 本地异常如网络异常等
clientExcepion.printStackTrace();
}
if (serviceException != null) {
// 服务异常
Log.e("ErrorCode", serviceException.getErrorCode());
Log.e("RequestId", serviceException.getRequestId());
Log.e("HostId", serviceException.getHostId());
Log.e("RawMessage", serviceException.getRawMessage());
}
}
});
}
public void getObjectSample() {
// 构造下载文件请求
GetObjectRequest get = new GetObjectRequest(testBucket, testObject);
try {
// 同步执行下载请求，返回结果
GetObjectResult getResult = oss.getObject(get);
Log.d("Content-Length", "" + getResult.getContentLength());
// 获取文件输入流
InputStream inputStream = getResult.getObjectContent();
byte[] buffer = new byte[2048];
int len;
while ((len = inputStream.read(buffer)) != -1) {
// 处理下载的数据，比如图片展示或者写入文件等
Log.d("asyncGetObjectSample", "read length: " + len);
}
Log.d("asyncGetObjectSample", "download success.");
// 下载后可以查看文件元信息
ObjectMetadata metadata = getResult.getMetadata();
Log.d("ContentType", metadata.getContentType());
} catch (ClientException e) {
// 本地异常如网络异常等
e.printStackTrace();
} catch (ServiceException e) {
// 服务异常
Log.e("RequestId", e.getRequestId());
Log.e("ErrorCode", e.getErrorCode());
Log.e("HostId", e.getHostId());
Log.e("RawMessage", e.getRawMessage());
} catch (IOException e) {
e.printStackTrace();
}
}
