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Guns啟動報錯

com.stylefeng.guns.rest.modular.auth.validator.impl.DbValidator

這個類它沒法注入

還有：MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.

我修改了數據源，它怎么還是連不上？

這是我在yml文件中的配置：

dev
??jdbc:mysql://127.0.0.1:3306/guns?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=false
????root
????
????guns
????log4j,wall,mergeStat

jdbc:mysql://127.0.0.1:3306/guns_flowable?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=false
??????root
??????
??dataSourceGuns?jdbc:mysql://127.0.0.1:3306/guns_flowable?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=false
????root
????

info
??debug
??logs/
??guns.log