阿里数据库连接池非常强大,比c3p0等感觉好用很多 druid-master\src\main\java\com\alibaba\druid\pool\DruidPooledPreparedStatement.java druid-master\src\main\java\com\alibaba\druid\pool\DruidPooledResultSet.java druid-master\src\main\java\com\alibaba\druid\pool\DruidPool