原文:利用hibernate连接mysql时报错Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]...

java.lang.ExceptionInInitializerError at cn.itcast.a one many.Demo.fun Demo.java: at sun.reflect.NativeMethodAccessorImpl.invoke Native Method at sun.reflect.NativeMethodAccessorImpl.invoke NativeMeth ...

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