【OSS】文件夹相关操作

来源：互联网发布：淘宝购物车的东西少了编辑：程序博客网时间：2024/06/12 13:30

Bucket创建完毕后就可以创建文件夹。

说明：1、OSS本身没有文件夹的概念,这里创建的文件夹本质上是一个size为0的Object

2、要创建的文件夹名称,在满足Object命名规则的情况下以"/"结尾

package com.ls;import java.io.ByteArrayInputStream;import java.io.IOException;import com.aliyun.oss.OSSClient;import com.aliyun.oss.model.ObjectMetadata;public class ExampleForCreateFolder {private static final String ACCESS_ID = "*****************";private static final String ACCESS_KEY = "**********************";private static final String OSS_ENDPOINT = "http://oss.aliyuncs.com/";public static void createFolder(OSSClient client) {String bucketName = "saas02";// 要创建的文件夹名称,在满足Object命名规则的情况下以"/"结尾String objectName = "jyltest/aa/";ObjectMetadata objectMeta = new ObjectMetadata();/* * 这里的size为0,注意OSS本身没有文件夹的概念,这里创建的文件夹本质上是一个size为0的Object,dataStream仍然可以有数据 * 照样可以上传下载,只是控制台会对以"/"结尾的Object以文件夹的方式展示,用户可以利用这种方式来实现文件夹模拟功能,创建形式上的文件夹 */byte[] buffer = new byte[0];ByteArrayInputStream in = new ByteArrayInputStream(buffer);objectMeta.setContentLength(0);try {client.putObject(bucketName, objectName, in, objectMeta);} finally {try {in.close();} catch (IOException e) {e.printStackTrace();}}}public static void deleteFolder(OSSClient client) {String bucketName = "saas01";String objectName = "jyltest/aa/";boolean isObjectExist = client.doesObjectExist(bucketName, objectName);System.out.println("rs:"+isObjectExist);if (isObjectExist) {System.out.println("存在,可以删除");client.deleteObject(bucketName, objectName);} else {System.out.println("文件夹不存在，无法删除！");}}public static void main(String[] args) throws IOException {OSSClient client = new OSSClient(OSS_ENDPOINT, ACCESS_ID, ACCESS_KEY);createFolder(client);deleteFolder(client);System.out.println("OK!");}}

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