直接这样保存，文件类型成了application/octet-stream 二进制了
application/octet-stream
FileUtils.copyInputStreamToFile(file.getInputStream(), imageSaveFile);
有没有设置保存类型的
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Is imageSaveFile a File object? When creating a file, the type is determined based on the file name suffix, such as xxxx.jpg, then it is a file of jpg image type.
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Is imageSaveFile a File object? When creating a file, the type is determined based on the file name suffix, such as xxxx.jpg, then it is a file of jpg image type.