问题描述
org.apache.commons.dbcp BasicDatasource和PoolingDataSoure有什么区别？两者都支持连接池吗？何时使用它们？
What is the difference between org.apache.commons.dbcp BasicDatasource and PoolingDataSoure? Do both support pooling of connections? When to use each of them ?
推荐答案
BasicDataSource 是，作为说，一站式购物满足基本需求。它有所有必要的。它在内部创建了PoolableDataSource和ObjectPool。
BasicDataSource is, as the javadoc says, a one-stop shopping for basic needs. It has all the necessary. It creates internally a PoolableDataSource and an ObjectPool.
PoolingDataSource 使用提供的ObjectPool实现DataSource接口。 PoolingDatasource负责处理与连接有关的任何事情（转换，检查有效性，设置属性等），而ObjectPool负责保存和计算这个类型为什么的对象。
PoolingDataSource implements the DataSource interface using a provided ObjectPool. PoolingDatasource take cares of whatever has to do with connections (casting, checking validity, setting properties, etc) and ObjectPool take cares of holding and counting this whatever-type-it-is object.
所以我应该使用BasicDataSource 。如果你需要一些特别的东西，可以使用PoolingDatasource和ObjectPool的另一个实现。但我认为这是一种罕见的情况。
So I should use BasicDataSource. If you need something special maybe can use PoolingDatasource with another implementation of ObjectPool. But I think it would be a rare case.
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