自建MinIO对象存储(三)：上传、下载、预览

喜欢ヅ旅行 2023-06-17 05:53 4阅读 0赞

## 1.网页直传 ##

我的前端工程是VUE的独立工程的，这里我介绍minio-sdk直传和AWS-SDK直传两种方式

首先导入sdk包：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeXV4NDg2OQ_size_16_color_FFFFFF_t_70][]

### Minio-sdk直传 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeXV4NDg2OQ_size_16_color_FFFFFF_t_70 1][]

Minio-sdk官方提供两种上传对象方法

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeXV4NDg2OQ_size_16_color_FFFFFF_t_70 2][]

由于浏览器限制无法获取磁盘文件的绝对路径，所以我不使用这种方法，

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeXV4NDg2OQ_size_16_color_FFFFFF_t_70 3][]

官网这个接口是有问题的,第5个参数传入contentType是无效的，实际上需要传入metaData才有用。

### AWS-SDK直传 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeXV4NDg2OQ_size_16_color_FFFFFF_t_70 4][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeXV4NDg2OQ_size_16_color_FFFFFF_t_70 5][]

## 2 AWS预签名上传（Java） ##

生成预签名URL

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeXV4NDg2OQ_size_16_color_FFFFFF_t_70 6][]

使用预签名URL上传文件

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeXV4NDg2OQ_size_16_color_FFFFFF_t_70 7][]

## 3. Java-SDK上传 ##

### Mini-SDK上传 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeXV4NDg2OQ_size_16_color_FFFFFF_t_70 8][]

### AWS-SDK上传 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeXV4NDg2OQ_size_16_color_FFFFFF_t_70 9][]

## 4. 文件预览下载 ##

生成预览下载地址

![2019112717165119.png][]

如果上传到minio的文件有设置metadata，图片、视频等文件就可以直接在浏览器预览，也可以直接用这个url直接下载文件，这个url是带有过期时间。

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[2019112717165119.png]: https://img-blog.csdnimg.cn/2019112717165119.png