代发：三月26日重庆大学吴云东院士将来UCSD做招聘报告，涵盖多 - 未名空间MITBBS历史存档

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代发：三月26日重庆大学吴云东院士将来UCSD做招聘报告，涵盖多

代发：三月26日重庆大学吴云东院士将来UCSD做招聘报告，涵盖多# Engineering - 工程

s*d2012-03-19 07:03

1 楼

有没有人碰到过这个问题？
I created an oracle stored procedure that takes DBMS_SQL.NUMBER_TABLE as one
of the input parameters, but when executing this SP by Java, i did
something like
ArrayDescriptor descriptorID = ArrayDescriptor.createDescriptor( "DBMS_SQL.
NUMBER_TABLE", connection );
ARRAY array_ID = new ARRAY( descriptorID, connection, values));
values is an array of integers. Running the app will fail at the line of
creating descriptor. The error is as following:
java.lang.ClassCastException:org.apache.commons.dbcp.PoolingDataSource$
PoolGuardConnectionWrapper cannot be cast to oracle.jdbc.OracleConnection
I don't know how to deal with it anymore.
Any help is appreciated.
Thanks

s*12012-03-19 07:03

2 楼

【以下文字转载自 Economics 讨论区】
发信人: sunshine81 (sun), 信区: Economics
标题: 代发：三月26日重庆大学吴云东院士将来UCSD做招聘报告，涵盖多学科
关键字: 重庆大学，吴云东，招聘
发信站: BBS 未名空间站 (Sun Mar 18 19:50:07 2012, 美东)
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Time: 11:00 am-12:00 pm, March 26 (Monday), 2012
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B*g2012-03-19 07:03

3 楼

咱没用过ArrayDescriptor ，但是DBMS_SQL.NUMBER_TABLE本身不是array，而是一个
collection。

one

【在 s******d 的大作中提到】

: 有没有人碰到过这个问题？
: I created an oracle stored procedure that takes DBMS_SQL.NUMBER_TABLE as one
: of the input parameters, but when executing this SP by Java, i did
: something like
: ArrayDescriptor descriptorID = ArrayDescriptor.createDescriptor( "DBMS_SQL.
: NUMBER_TABLE", connection );
: ARRAY array_ID = new ARRAY( descriptorID, connection, values));
: values is an array of integers. Running the app will fail at the line of
: creating descriptor. The error is as following:
: java.lang.ClassCastException:org.apache.commons.dbcp.PoolingDataSource$

s*d2012-03-19 07:03

4 楼

ARRAY is Oracle's own JDBC impl class, and it requires a OracleConneciton
instance. 估计你传进去的Connection不是真正的OracleConnection, 而是container
自己包装过的wrapper connection. 如果是JDK 6, 你可以试试用connection.unwrap()
把OracleConnection取出来用.

one

【在 s******d 的大作中提到】