Spring Boot 实现将多个MinIO文件压缩成压缩包并下载至本地

桃扇骨 2022-10-10 01:52 524阅读 0赞

### 1 Maven依赖 ###

<dependency>
    			<groupId>cn.hutool</groupId>
    			<artifactId>hutool-all</artifactId>
    			<version>5.5.7</version>
    		</dependency>
    		<dependency>
    			<groupId>io.minio</groupId>
    			<artifactId>minio</artifactId>
    			<version>7.0.2</version>
    		</dependency>

### 2 调试代码 ###

/**
         * 从MinIO下载多个文件
         *
         * @param response
         */
        @GetMapping("/downloadMultiFileToMinIO")
        public void downloadMultiFileToMinIO(HttpServletResponse response) throws IOException {
            MinioClient minioClient = minIOService.getMinioClient();
            List<String> fileUrlList = new ArrayList<>(Arrays.asList("新建文件夹1.txt","新建文本文档.txt", "myfile_20210515111437.docx"));
            //被压缩文件InputStream
            InputStream[] srcFiles = new InputStream[fileUrlList.size()];
            //被压缩文件名称
            String[] srcFileNames = new String[fileUrlList.size()];
            for (int i = 0; i < fileUrlList.size(); i++) {
                String fileUrl = fileUrlList.get(i);
                InputStream inputStream = minIOService.getObject(minioClient, fileUrl);
                if (inputStream == null) {
                    continue;
                }
                srcFiles[i] = inputStream;
                String[] splitFileUrl = fileUrl.split("/");
                srcFileNames[i] = splitFileUrl[splitFileUrl.length - 1];
            }
            //多个文件压缩成压缩包返回
            ZipUtil.zip(response.getOutputStream(), srcFileNames, srcFiles);
        }

### 3 MinIO文件 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4OTc0NjM4_size_16_color_FFFFFF_t_70][]

### 4 调试结果 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4OTc0NjM4_size_16_color_FFFFFF_t_70 1][]

### 注： ###

MinIO的使用及MinIOService源码请查看以下博客。

[Spring Boot配置MinIO（实现文件上传、下载、删除）][Spring Boot_MinIO]

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4OTc0NjM4_size_16_color_FFFFFF_t_70 1]: /images/20221005/39bc35f01baa4a2ba851b6378df530a1.png
[Spring Boot_MinIO]: https://blog.csdn.net/qq_38974638/article/details/115710488