When testing the springboot web project, the page requests pictures, and the background response is really json?

when testing the springboot web project, the page requests some picture information, but some resources are not accessible?
one of the Type is jpeg and the other is json?. Why is this happening?

clipboard.png

footer.jpg dadonggua.jpg,

clipboard.png
webapp

clipboard.png

Mar.31,2021

Please observe the Accept headers of these two requests

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-64f5-1b33d73-2bed2.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b33d73-2bed2.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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