C3P0是一个开源的JDBC连接池，它实现了数据源和JNDI绑定，支持JDBC3规范和JDBC2的标准扩展。目前使用它的开源项目有Hibernate，Spring等。(C3P0 is an open source JDBC connection pool that implements data sources and JNDI bindings, and supports JDBC3 specifications and standard extensions of JDBC2. The op