Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource
INFO AbstractPoolBackedDataSource:462 - Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> ...
原文：啟動SpringBoot web項目出現 Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3,....
詳細錯誤信息： 我項目無法啟動的原因： 原因是少一個 spring boot starter data jpa依賴 我的解決方案： 添加 依賴 重新啟動，項目可以正常啟動了。 ...
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com.mchange.v2.c3p0.ComboPooledDataSource
com.mchange.v2.c3p0.ComboPooledDataSource：數據庫連接池的一種 C3P0是一個開放源代碼的JDBC連接池，它在lib目錄中與Hibernate一起發布,包括了實現jdbc3和jdbc2擴展規范說明的Connection 和Statement 池 ...
C3P0的詳細配置說明（com.mchange.v2.c3p0.ComboPooledDataSource）
C3P0是一個開放源代碼的JDBC連接池，它在lib目錄中與Hibernate一起發布,包括了實現jdbc3和jdbc2擴展規范說明的Connection 和Statement 池的DataSources 對象。 c3p0-config> <default-config> ...
02-Nov-2017 07:11:56.475 信息 [http-nio-8080-exec-10] com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource. Initializing c3p0 pool...
報錯： 02-Nov-2017 07:11:56.475 信息 [http-nio-8080-exec-10] com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource. Initializing c3p0 pool... ...
Invalid property 'driverClassName' of bean class [com.mchange.v2.c3p0.ComboPooledDataSource]
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 ...
Caused by: java.lang.IllegalStateException: Failed to introspect Class [com.mchange.v2.c3p0.ComboPooledDataSource] from ClassLoader
Caused by: java.lang.IllegalStateException: Failed to introspect Class [com.mchange.v2.c3p0.ComboPooledDataSource] from ClassLoader ...
SQLException: com.mchange.v2.c3p0.ComboPooledDataSource [ java.beans.IntrospectionException: java.lang.reflect.InvocationTargetException
問題：Could not get JDBC Connection; nested exception is java.sql.SQLException: com.mchange.v2.c3p0.ComboPooledDataSource ...
【原創】使用c3p0數據庫連接池時出現com.mchange.v2.resourcepool.TimeoutException
有一個線上環境使用的是c3p0數據庫，為外部提供接口服務。最近訪問壓力增大后台tomcat的日志里面頻繁出現 com.mchange.v2.resourcepool.TimeoutException: A client timed out while waiting to acquire ...