阿里云OSS，上传图片后访问URL，浏览器自动下载

根本原因：

https://blog.csdn.net/weixin_44537122/article/details/105072423

解决方法:

java

https://blog.csdn.net/weianswer/article/details/106651673

golang

//上传文件流
func UploadFileByte(bucketName string, objectName string, localFileName multipart.File) (msg string, err error) {
    fmt.Printf("上传文件流...")
    bucket, err := NewOSSClient(bucketName)
    if err != nil {
        return "OSS实例创建失败", err
    }
    //将ContentType设为image/jpg，这样访问url不会自动下载
    option :=oss.ContentType("image/jpg")
    err = bucket.PutObject(objectName, localFileName, option)
    if err != nil {
        panic(err)
        return "上传失败", err
    }
    return "上传成功", err
}

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