Upload a plist file and return a xml suffix link. How to control the suffix of the returned link?

problem description

uploading a plist file with RestTemplate returns a link with a xml suffix. How to control this link is also what parameters need to be added by plist or header

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the environmental background of the problems and what methods you have tried

related codes

/ / Please paste the code text below (do not replace the code with pictures)

what result do you expect? What is the error message actually seen?

Jul.28,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b30612-2bd24.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b30612-2bd24.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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