Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
错误原因
仔细检查自己是否有打印错误单词…
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
错误原因
仔细检查自己是否有打印错误单词…