java.lang.ClassCastException: com.alibaba.druid.pool.DruidPooledConnection cannot be cast to oracle.jdbc.OracleConnection
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:105) at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:73)失败原因：
The connection pool usually has a wrapper around the real connection instance, that's why your cast fails.
连接池通常包装了一个真实的真实的Connection实例。
解决方案：
Connection connection = ...; // Oracle // 增加此代码，将Connection转换为OracleConnection connection = connection.unwrap(OracleConnection.class); StructDescriptor st = new StructDescriptor("T_ORDER", connection);