java.sql.SQLSyntaxErrorException: Unknown database '数据库名'

警告: com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@71e0bf5e -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
java.sql.SQLSyntaxErrorException: Unknown database 'test'

此异常为找不到该数据库

在自己的mysql中看看是否写错了数据库名或者是否存在对应的数据库

在对应的setJdbcUrl中填入正确的数据库地址以及名称即可获取数据库的地址