【OSS】文件（实际就是Object）上传下载操作

来源：互联网发布：小成图排盘软件编辑：程序博客网时间：2024/06/05 09:01
package com.ls;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.InputStream;import com.aliyun.oss.ClientException;import com.aliyun.oss.OSSClient;import com.aliyun.oss.OSSException;import com.aliyun.oss.model.GetObjectRequest;import com.aliyun.oss.model.ObjectMetadata;import com.aliyun.oss.model.PutObjectResult;public class OSSObjectSample {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 main(String[] args) {//Buceket名称String bucketName = "saas01";//Object对象String key = "A/B/C/女帝.jpg";/*说明： * 1、要满足命名规范 * 2、可以制定到bucket的文件夹 * 3、例如A/B/C/女帝.jpg则是将文件上传到bucket的文件夹A下面的文件夹B下面的文件夹C中，命名为女帝.jpg * */String uploadFilePath = "G:/test/女帝.jpg";String downloadFilePath = "G:/test/photo1.jpg";// 使用默认的OSS服务器地址创建OSSClient对象。OSSClient client = new OSSClient(OSS_ENDPOINT, ACCESS_ID, ACCESS_KEY);client.deleteObject(bucketName, key);try {System.out.println("正在上传...");long startTime = System.currentTimeMillis();uploadFile(client, bucketName, key, uploadFilePath);long endTime = System.currentTimeMillis();System.out.println("上传花费时间约：" + (endTime - startTime) + " ms");System.out.println("正在下载...");long startTime_d = System.currentTimeMillis();downloadFile(client, bucketName, key, downloadFilePath);long endTime_d = System.currentTimeMillis();System.out.println("下载花费时间约：" + (endTime_d - startTime_d) + " ms");} catch (OSSException e) {e.printStackTrace();} catch (ClientException e) {e.printStackTrace();} catch (FileNotFoundException e) {e.printStackTrace();}System.out.println("OK");}// 上传文件private static void uploadFile(OSSClient client, String bucketName,String key, String filename) throws OSSException, ClientException,FileNotFoundException {File file = new File(filename);ObjectMetadata objectMeta = new ObjectMetadata();objectMeta.setContentLength(file.length());InputStream input = new FileInputStream(file);PutObjectResult rs = client.putObject(bucketName, key, input,objectMeta);System.out.println("上传成功：" + rs.getETag());}// 下载文件private static void downloadFile(OSSClient client, String bucketName,String key, String filename) throws OSSException, ClientException {client.getObject(new GetObjectRequest(bucketName, key), new File(filename));}}
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