ORA-30683: failure establishing connection to debugger
文档解释ORA-30683:failureestablishingconnectiontodebuggerCause:Anerrorwasindicatedwhentryingtoestablishaconnectiontoadebugger.UsuallyaTNSerrorwilldisplayalongwithth...
Wed Jul 04 18:01:38 CST 2018 WARN: Establishing SSL connection without server's identity verification is not recommended
WedJul0418:01:38CST2018WARN:EstablishingSSLconnectionwithoutserver'sidentityverificationisnotrecommended.AccordingtoMySQL5.5.45+,5.6.26+and5.7.6+requirementsSSL...
WARN: Establishing SSL connection without server's identity verification is not recommended
0.要想用Java连接mysql数据库，首先装好JDK，配置好环境变量，将jdk*.*.*lib放入classpath，将jdk*.*.*in放入path中（*.*.*表示版本号）；其次安装好mysql数据库，然后下载连接数据库要用的驱动包，并配置环境变量（配置方法，将驱动包的路径放入classpath中）。&nbs...