Java code警告: SQL Error: 0, SQLState: null

2010-4-20 13:34:50 org.hibernate.util.JDBCExceptionReporter logExceptions

严重: Cannot create PoolableConnectionFactory

2010-4-20 13:34:50 org.hibernate.cfg.SettingsFactory buildSettings

警告: Could not obtain connection metadata

org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory, cause:

java.sql.SQLException: Io 异常: The Network Adapter could not establish the connection

at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)

at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)

at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:255)

at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:387)

at oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:441)

at oracle.jdbc.driver.T4CConnection.(T4CConnection.java:165)

at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)

at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)

at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:82)

at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:300)

at org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:838)

at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:821)

at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:518)

..