解决 Method com/mchange/v2/c3p0/impl/NewProxyPreparedStatement.isClosed()Z is abstract

时间 2020-01-27

标签解决 method com mchange v2 c3p0 impl newproxypreparedstatement.isclosed newproxypreparedstatement isclosed abstract 栏目 Java开源繁體版

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在配置c3p0数据源过程当中出现： java.lang.AbstractMethodError: Method com/mchange/v2/c3p0/impl/NewProxyPreparedStatement.isClosed()Z is abstractjava 缘由：c3p0.jar版本太低（我用的是 c3p0-0.9.1.2.jar）解决： c3p0-0.9.1.2.jar 换成 c3

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1. Method oracle/jdbc/driver/T4CPreparedStatement.isClosed()Z is abstract
2. Method com/mysql/jdbc/ServerPreparedStatement.isClosed()Z is abstract
3. abstract类中method
4. AbstractMethodError: abstract method "androidx.databinding.ViewDataBinding androidx.databinding.Data
5. MyBatis-Oracle连接:Method oracle/jdbc/driver/OracleResultSetImpl.isClosed()Z is abstract错误
6. must implement the inherited abstract method
7. MyBatis+Oracle时出现的错误： Method oracle/jdbc/driver/OracleResultSetImpl.isClosed()Z is abstract
8. Debug-java.lang.IllegalStateException: Using named parameters for method public abstract……
9. hikari连接池T4CPreparedStatement.isClosed()Z is abstract 已解决
10. [语法]全面理解抽象类(abstract class),抽象方法(abstract method),虚方法(virtual method),接口(interface)...

>>更多相关文章<<