/// 检索对象内容
public void SelectObject()
{
//.cssg-snippet-body-start:[select-object]
try
{
string bucket = "examplebucket-1250000000"; //存储桶，格式：BucketName-APPID
string key = "exampleobject"; //对象键
SelectObjectRequest request = new SelectObjectRequest(bucket, key);
ObjectSelectionFormat.JSONFormat jSONFormat = new ObjectSelectionFormat.JSONFormat();
jSONFormat.Type = "DOCUMENT";
jSONFormat.RecordDelimiter = "\n";
string outputFile = "select_local_file.json";
request.setExpression("Select * from COSObject")
.setInputFormat(new ObjectSelectionFormat(null, jSONFormat))
.setOutputFormat(new ObjectSelectionFormat(null, jSONFormat))
.SetCosProgressCallback(delegate(long progress, long total) {
Console.WriteLine("OnProgress : " + progress + "," + total);
})
.outputToFile(outputFile)
;
SelectObjectResult selectObjectResult = cosXml.selectObject(request);
Console.WriteLine(selectObjectResult.stat);
}
catch (COSXML.CosException.CosClientException clientEx)
{
Console.WriteLine("CosClientException: " + clientEx.StackTrace);
Console.WriteLine("CosClientException: " + clientEx.Message);
}
catch (COSXML.CosException.CosServerException serverEx)
{
Console.WriteLine("CosServerException: " + serverEx.GetInfo());
}
//.cssg-snippet-body-end
}