Verify if the uploading file is as same as the downloaded file
Question
In java is there a way to verify if the user uploading file is as same as the one he just downloaded (other than by using the file name).
For an example, if the user is given a certain template to download and fill, and then upload the same, How can we verify if he is uploading the same file as he downloaded.
1 answers
solution1
0 2017-03-20 10:20:12
如果要检查文件内容是否相同，只需验证校验和是否未更改，例如FileUtils.checksumCRC32
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