定期删除阿里云过期的object文件

红太狼 2022-06-11 05:28 126阅读 0赞

# 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.csdn.net/llllvvv/article/details/75634663