定期删除阿里云过期的object文件

AliyunUtils

import java.util.ArrayList;
import java.util.List;
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.model.ListObjectsRequest;
import com.aliyun.oss.model.OSSObjectSummary;
import com.aliyun.oss.model.ObjectListing;

public class AliyunUtils {
	private static String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
	private static String accessKeyId = "<这里是公司的accessKeyId>";
	private static String accessKeySecret = "<这里是公司的accessKeySecret>";
	private static String bucketName = "<这里是公司的bucketName>";
	private static OSSClient ossClient;

	/**删除图片
	 * @param key 
	 */
	public static void deletePicture(String key){
		ossClient  = new OSSClient(endpoint, accessKeyId, accessKeySecret);
		ossClient.deleteObject(bucketName, key);
		ossClient.shutdown();
	}

	/**列出目录下所有文件(object)
	 * @param prefix 指定文件夹
	 * @return
	 */
	public static List<String> getAllKey(String prefix) {
		List<String> commonPrefixes = getCommonPrefixes(prefix);
		
		ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
		// 构造ListObjectsRequest请求
		ListObjectsRequest listObjectsRequest = new ListObjectsRequest(bucketName);
		
		List<String> list = new ArrayList<String>();
		for (String string : commonPrefixes) {
			// 递归列出fun目录下的所有文件
			listObjectsRequest.setPrefix(string);
			ObjectListing listing = ossClient.listObjects(listObjectsRequest);
			for (OSSObjectSummary objectSummary : listing.getObjectSummaries()) {
			    list.add(objectSummary.getKey());
			}
		}
		return list;
	}
	
	/**列出目录下所有子目录
	 * @param prefix 指定文件夹
	 * @return
	 */
	public static List<String> getCommonPrefixes(String prefix) {
		ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
		// 构造ListObjectsRequest请求
		ListObjectsRequest listObjectsRequest = new ListObjectsRequest(bucketName);
		// "/" 为文件夹的分隔符
		listObjectsRequest.setDelimiter("/");
		// 递归列出fun目录下的所有文件
		listObjectsRequest.setPrefix(prefix + "/");
		ObjectListing listing = ossClient.listObjects(listObjectsRequest);
		return listing.getCommonPrefixes();
	}
}

DelObjectImpl

import java.util.Calendar;
import java.util.List;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

/*
 * 删除阿里云过期的object
 * */
@Component
public class DelObjectImpl {
	@Scheduled(cron = " 0 0 5 ? * MON ") // 每周一早5点执行一次  
	public void myTest() {//保存的key格式为: key = "circle/uid/" + Calendar.getInstance().getTimeInMillis();
		List<String> list = AliyunUtils.getAllKey("circle");
		for (String key : list) {
			String[] split = key.split("/");
			if (split[0].equals("circle")) {//删除3个月之前的文件
				if (Calendar.getInstance().getTimeInMillis() > (Long.parseLong(split[2]) + 3600l * 1000 * 24 * 90)) {
					AliyunUtils.deletePicture(key);
					System.err.println("删除成功: "+ key);
				}
			}
		}
	}
}

配置定时器参考:

http://blog.youkuaiyun.com/llllvvv/article/details/75634663