根据图片生成压缩图

// file 为图片文件
ImgUtil.toBase64DataUri(ImgUtil.scale(ImgUtil.toImage(file.getBytes()), 100, 100, null), suffix)

这行代码使用 Hutool 库进行图像处理,主要完成了以下几个步骤:

1. `ImgUtil.toImage(file.getBytes())`: 通过 `ImgUtil` 工具类的 `toImage` 方法,将文件的字节数组转换为图像对象。这个图像对象在后续的处理中被使用。请注意,这里假设 `file` 是一个表示图像文件的对象。

2. `ImgUtil.scale(...)`: 对上一步得到的图像对象进行缩放操作。`ImgUtil.scale` 方法通常用于改变图像的尺寸。你可以在这里指定缩放的目标尺寸等参数。

3. `ImgUtil.toBase64DataUri(...)`: 最终,使用 `toBase64DataUri` 方法将缩放后的图像对象转换为 Base64 数据URI。Base64 数据URI 是一种将图像数据嵌入到文档中的方式,通常用于将图像直接嵌入到 HTML 或 CSS 中,而不需要额外的网络请求。

这一串操作的目的可能是将原始图像文件通过缩放处理后,转换为 Base64 数据URI 格式,以便在前端或其他地方直接使用,而无需在服务器端保存或传输图像文件。

最后格式为:

data:image/jpg;base64,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