spring配置文件中配置c3p0錯誤，錯誤原因在於c3p0連接池與DBCP連接池在驅動、連接、數據庫用戶名這些屬性名稱的差別
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com.mchange.v2.c3p0.ComboPooledDataSource
Caused by: java.lang.IllegalStateException: Failed to introspect Class [com.mchange.v2.c3p0.ComboPooledDataSource] from ClassLoader [ParallelWebappClassLoader
Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource
C3P0的詳細配置說明（com.mchange.v2.c3p0.ComboPooledDataSource）
啟動SpringBoot web項目出現 Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3,....
SQLException: com.mchange.v2.c3p0.ComboPooledDataSource [ java.beans.IntrospectionException: java.lang.reflect.InvocationTargetException [numThreadsAwaitingCheckoutDefaultUser] ] has been closed()
Receiver class com.mchange.v2.c3p0.impl.NewProxyResultSet does not define or inherit an implementation of the resolved method 'abstract boolean isClosed()' of interface java.sql.ResultSet.
關於使用C3P0程序報錯Having failed to acquire a resource, com.mchange.v2.resourcepool的問題
com.mchange.v2.c3p0.impl.NewProxyConnection cannot be cast to com.mysql.jdbc.Connection 問題的解決
【原創】使用c3p0數據庫連接池時出現com.mchange.v2.resourcepool.TimeoutException