Complete instance of file upload and download tool class implemented in Java [automatic naming of uploaded files]

This example describes the file upload and download tool class implemented in Java. Share with you for your reference, as follows:

This is a tool class for file upload and download in the eclipse environment using the Java language. Like the c# file upload and download tool class introduced earlier, in order to avoid duplicate file names in the server, The method of "server time (defined to milliseconds) + file name + file suffix" is adopted as the file name on the server; during the download process, spring MVC responseentity is used to download the file, and the byte stream is returned. After the download is successful, the saving path of the file can be customized.

For more information about Java algorithms, readers who are interested can see the topics on this site: summary of java file and directory operation skills, tutorial on Java data structure and algorithms, summary of Java DOM node operation skills and summary of Java cache operation skills

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