package com.dji.sample.media.util;
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import io.minio.MinioClient;
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import io.minio.RemoveObjectArgs;
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import io.minio.StatObjectArgs;
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import io.minio.StatObjectResponse;
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import io.minio.errors.MinioException;
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import java.io.*;
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import java.nio.file.*;
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import java.util.*;
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import java.util.zip.*;
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public class MinioFileDownloader {
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private final String bucketPath;
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public MinioFileDownloader(String bucketPath) {
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this.bucketPath = bucketPath;
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}
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public void downloadAndZipFolders(List<String> prefixes, String localSaveDir,String filepath) throws Exception {
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// 创建目标文件夹路径并生成zip文件名
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Path localSavePath = Paths.get(localSaveDir);
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if (!Files.exists(localSavePath)) {
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Files.createDirectories(localSavePath);
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}
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String zipFileName = localSavePath.resolve(filepath).toString();
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// 创建压缩文件输出流
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try (ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(zipFileName))) {
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zos.setLevel(Deflater.BEST_COMPRESSION); // 使用最高压缩级别
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// 遍历每个前缀
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for (String prefix : prefixes) {
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// 从本地文件系统获取文件
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String localFolderPath = bucketPath + "/" + prefix;
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File localFolder = new File(localFolderPath);
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if (!localFolder.exists() || !localFolder.isDirectory()) {
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throw new FileNotFoundException("Local folder not found: " + localFolderPath);
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}
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// 压缩文件夹
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zipFolder(localFolder, prefix, zos);
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}
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}
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}
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private void zipFolder(File folder, String parentFolder, ZipOutputStream zos) throws IOException {
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for (File file : folder.listFiles()) {
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if (file.isDirectory()) {
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zipFolder(file, parentFolder + "/" + file.getName(), zos);
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continue;
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}
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zos.putNextEntry(new ZipEntry(parentFolder + "/" + file.getName()));
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try (FileInputStream fis = new FileInputStream(file)) {
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byte[] buffer = new byte[1024];
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int length;
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while ((length = fis.read(buffer)) >= 0) {
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zos.write(buffer, 0, length);
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}
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}
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zos.closeEntry();
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}
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}
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public static void main(String[] args) {
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boolean success = deleteFileFromMinio("http://139.196.74.78:9000", "sxkj", "sxkj2024", "cloud-bucket", "test/瑞金图片.jpeg");
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if (!success) {
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System.out.println("File deletion failed or file did not exist.");
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}
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}
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public static boolean deleteFileFromMinio(String endpoint, String accessKey, String secretKey, String bucketName, String objectName) {
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try {
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// 创建MinioClient实例
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MinioClient minioClient = MinioClient.builder()
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.endpoint(endpoint)
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.credentials(accessKey, secretKey)
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.build();
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// 检查文件是否存在
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try {
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StatObjectResponse stat = minioClient.statObject(StatObjectArgs.builder()
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.bucket(bucketName)
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.object(objectName)
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.build());
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System.out.println("File exists, proceeding with deletion.");
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// 删除文件
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minioClient.removeObject(RemoveObjectArgs.builder()
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.bucket(bucketName)
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.object(objectName)
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.build());
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System.out.println("File deleted successfully");
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return true;
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} catch (Exception e) {
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// 如果文件不存在，则捕获异常
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System.out.println("File does not exist or cannot be accessed: " + e.getMessage());
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return false;
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}
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} catch (Exception e) {
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System.out.println("Unexpected error: " + e.getMessage());
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return false;
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}
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}
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}
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