Java ObjectListing.isTruncated方法代码示例

import com.aliyun.oss.model.ObjectListing; //导入方法依赖的package包/类
@Override
public CCSObjectList listObjects(CCSPageObjectsRequestable pageable) {
	String nextMarker = null;
	CCSObjectList ccsObjectListing = null;
	ObjectListing objectListing = null;
	Integer pageIndex = 0;
	do {
		objectListing = ossClient.listObjects(new ListObjectsRequest(pageable.getBucketName())
				.withPrefix(pageable.getPrefix()).withMarker(nextMarker).withMaxKeys(pageable.getPageSize()));
		ccsObjectListing = AliyunOSSParseUtil.parseToCCSObjectList(objectListing);
		if (pageIndex == pageable.getPageIndex()) {
			break;
		}
		nextMarker = objectListing.getNextMarker();
		pageIndex++;
	} while (objectListing.isTruncated());
	return ccsObjectListing;
}
 

import com.aliyun.oss.model.ObjectListing; //导入方法依赖的package包/类
/**
 * 查看某个路径下的文件所占用的资源的大小
 * @param filePath 要查看文件的路径，如 file/image/
 * @return 单位：B
 */
public long getFolderSize(String filePath){
	ListObjectsRequest listObjectsRequest = new ListObjectsRequest(bucketName);
	listObjectsRequest.setPrefix(filePath); 
	listObjectsRequest.setMaxKeys(1000);
	
	boolean have = true;		//是否有下一页
	String nextMarker = null;
	int size = 0;		//总字节大小，单位：B
	while(have){
		if(nextMarker != null){
			listObjectsRequest.setMarker(nextMarker);
		}
		ObjectListing listO = getOSSClient().listObjects(listObjectsRequest);
		
	    for (OSSObjectSummary objectSummary : listO.getObjectSummaries()) {
	        size += objectSummary.getSize();  
	    }
	    
	    have = listO.isTruncated();
	    nextMarker = listO.getNextMarker();
	}
	return size;
}
 

import com.aliyun.oss.model.ObjectListing; //导入方法依赖的package包/类
/**
 * 获取 指定目录下的所有文件对象
 * @param filePath 要查看文件的路径，如 file/image/
 * @return {@link List}
 */
public List<OSSObjectSummary> getFolderObjectList(String filePath){
	ListObjectsRequest listObjectsRequest = new ListObjectsRequest(bucketName);
	listObjectsRequest.setPrefix(filePath); 
	listObjectsRequest.setMaxKeys(1000);
	List<OSSObjectSummary> list = new ArrayList<OSSObjectSummary>();
	
	boolean have = true;		//是否有下一页
	String nextMarker = null;
	while(have){
		if(nextMarker != null){
			listObjectsRequest.setMarker(nextMarker);
		}
		ObjectListing listO = getOSSClient().listObjects(listObjectsRequest);
		
	    for (OSSObjectSummary objectSummary : listO.getObjectSummaries()) {
	    	list.add(objectSummary);
	    }
	    
	    have = listO.isTruncated();
	    nextMarker = listO.getNextMarker();
	}
	return list;
}
 

import com.aliyun.oss.model.ObjectListing; //导入方法依赖的package包/类
/**
 * 查看某个路径下的文件所占用的资源的大小
 * @param filePath 要查看文件的路径，如 file/image/
 * @return 单位：B
 */
public static long getFolderSize(String filePath){
	ListObjectsRequest listObjectsRequest = new ListObjectsRequest(bucketName);
	listObjectsRequest.setPrefix(filePath); 
	listObjectsRequest.setMaxKeys(1000);
	
	boolean have = true;		//是否有下一页
	String nextMarker = null;
	int size = 0;		//总字节大小，单位：B
	while(have){
		if(nextMarker != null){
			listObjectsRequest.setMarker(nextMarker);
		}
		ObjectListing listO = OSSUtil.getOSSClient().listObjects(listObjectsRequest);
		
	    for (OSSObjectSummary objectSummary : listO.getObjectSummaries()) {
	        size += objectSummary.getSize();  
	    }
	    
	    have = listO.isTruncated();
	    nextMarker = listO.getNextMarker();
	}
	return size;
}
 

import com.aliyun.oss.model.ObjectListing; //导入方法依赖的package包/类
/**
 * 获取 指定目录下的所有文件对象
 * @param filePath 要查看文件的路径，如 file/image/
 * @return {@link List}
 */
public static List<OSSObjectSummary> getFolderObjectList(String filePath){
	ListObjectsRequest listObjectsRequest = new ListObjectsRequest(bucketName);
	listObjectsRequest.setPrefix(filePath); 
	listObjectsRequest.setMaxKeys(1000);
	List<OSSObjectSummary> list = new ArrayList<OSSObjectSummary>();
	
	boolean have = true;		//是否有下一页
	String nextMarker = null;
	while(have){
		if(nextMarker != null){
			listObjectsRequest.setMarker(nextMarker);
		}
		ObjectListing listO = OSSUtil.getOSSClient().listObjects(listObjectsRequest);
		
	    for (OSSObjectSummary objectSummary : listO.getObjectSummaries()) {
	    	list.add(objectSummary);
	    }
	    
	    have = listO.isTruncated();
	    nextMarker = listO.getNextMarker();
	}
	return list;
}
 

import com.aliyun.oss.model.ObjectListing; //导入方法依赖的package包/类
@Test
public void listAllObjects() {
	final int maxKeys = 200;
	String nextMarker = null;
	ObjectListing objectListing=null;
	do {
	    objectListing = ossClient.listObjects(new ListObjectsRequest("minsx-bucket").withMarker(nextMarker).withMaxKeys(maxKeys));
	    List<OSSObjectSummary> sums = objectListing.getObjectSummaries();
	    for (OSSObjectSummary s : sums) {
	        System.out.println("\t" + s.getKey());
	    }
	    nextMarker = objectListing.getNextMarker();
	} while (objectListing.isTruncated());
}
 

import com.aliyun.oss.model.ObjectListing; //导入方法依赖的package包/类
/**
 * 列出Object<br>
 *
 * @param client
 * @param bucketName
 * @param delimiter  Delimiter 设置为 “/” 时，返回值就只罗列该文件夹下的文件，可以null
 * @param prefix     Prefix 设为某个文件夹名，就可以罗列以此 Prefix 开头的文件，可以null
 * @return
 */
public static List<String> listObject(OSSClient client, String bucketName, String delimiter, String prefix) {

	// 是否循环的标识
	boolean hasNext = false;
	// 设定结果从Marker之后按字母排序的第一个开始返回
	String marker = "";
	//
	// ObjectListing listing = new ObjectListing();
	List<String> filePathList = new ArrayList<String>();
	// 构造ListObjectsRequest请求
	ListObjectsRequest listObjectsRequest = new ListObjectsRequest(bucketName);

	// 是一个用于对Object名字进行分组的字符。所有名字包含指定的前缀且第一次出现Delimiter字符之间的object作为一组元素:
	// CommonPrefixes
	listObjectsRequest.setDelimiter(delimiter);
	// 限定此次返回object的最大数，如果不设定，默认为100，MaxKeys取值不能大于1000
	listObjectsRequest.setMaxKeys(20);
	// 限定返回的object key必须以Prefix作为前缀。注意使用prefix查询时，返回的key中仍会包含Prefix
	listObjectsRequest.setPrefix(prefix);

	do {
		// 设定结果从Marker之后按字母排序的第一个开始返回
		listObjectsRequest.setMarker(marker);
		// 获取指定bucket下的所有Object信息
		ObjectListing sublisting = client.listObjects(listObjectsRequest);
		// 如果Bucket中的Object数量大于100，则只会返回100个Object， 且返回结果中 IsTruncated
		// 为false
		if (sublisting.isTruncated()) {
			hasNext = true;
			marker = sublisting.getNextMarker();
		} else {
			hasNext = false;
			marker = "";
		}
		// // 遍历所有Object
		for (OSSObjectSummary objectSummary : sublisting.getObjectSummaries()) {
			// System.out.println(objectSummary.getKey());
			filePathList.add(objectSummary.getKey());
		}
	} while (hasNext);

	return filePathList;
}