类的使用
com.mysql.cj.jdbc.exceptions.CommunicationsException

使用CommunicationsException的程序包

程序包	说明
com.mysql.cj.jdbc.exceptions

com.mysql.cj.jdbc.exceptions中CommunicationsException的使用

com.mysql.cj.jdbc.exceptions中CommunicationsException的子类

修饰符和类型	类	说明
class	ConnectionFeatureNotAvailableException	Thrown when a client requests a connection-level feature that isn't available for this particular distribution of Connector/J (currently only used by code that is export-controlled).