There are classes in the jar package, but import throws it wrong

has customized a jar package. After uploading it to the private server, the class can be found through ctrl+n, but the following error is thrown when import:

Jar maven java
Nov.02,2021

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idea lib

ctrl+F9 ,

jarspringbootBOOT-INF:https://blog.csdn.net/liunian...
plugin:

lib:

lib:

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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-64f5-4290642-54a5.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-4290642-54a5.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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