如何使用Apache DBCP 1.4創建數據源？

Question

我想這一點：

final PoolableConnectionFactory factory = new PoolableConnectionFactory(
    new DriverManagerConnectionFactory("jdbc:hsqldb:mem:testdb", "sa", ""), 
    new GenericObjectPool(null), 
    null, 
    "SELECT 1 from INFORMATION_SCHEMA.SYSTEM_USERS", 
    true, 
    false, 
    Connection.TRANSACTION_NONE 
); 
DataSource ds = new PoolingDataSource(factory.getPool()); 
ds.getConnection(); 

不得要領，拋出異常：

java.util.NoSuchElementException: Could not create a validated object, cause: Invalid argument in JDBC call 
    at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:1191) 
    at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:106) 

有什麼不對？

Answer 1

嘗試設置你的PoolableConnectionFactory這樣

PoolableConnectionFactory factory = new PoolableConnectionFactory(
    new DriverManagerConnectionFactory("jdbc:hsqldb:mem:testdb", "sa", ""), 
    new GenericObjectPool(null), 
    null, null, false, true); 

，並檢查它的工作的方式。然後檢查與事務相關的額外參數是否在DBCP版本中有效。