清cache应该是在jdbc的client端上的一些操作吧 下面的weblogic的，希望能有点参考To clear the statement cache in a JDBC data source: Navigate to the data source that you want to work with: Navigate to JDBC data source system resources Navigate to JDBC application modules Select the Control tab. On the Control page, select the instances of the data source for which you want to clear the statement cache. Date source instances are listed by the server on which they are deployed. Click the Clear Statement Cache button. Click Yes to confirm the action. Results are displayed at the top of the page, and the Status of Last Action is changed to SUCCESS for each data source that you selected to shrink.http://docs.oracle.com/cd/E12839_01/apirefs.1111/e13952/taskhelp/jdbc/jdbc_datasources/ClearStatementCache.html
下面的weblogic的，希望能有点参考To clear the statement cache in a JDBC data source: Navigate to the data source that you want to work with:
Navigate to JDBC data source system resources
Navigate to JDBC application modules
Select the Control tab.
On the Control page, select the instances of the data source for which you want to clear the statement cache. Date source instances are listed by the server on which they are deployed.
Click the Clear Statement Cache button.
Click Yes to confirm the action. Results are displayed at the top of the page, and the Status of Last Action is changed to SUCCESS for each data source that you selected to shrink.http://docs.oracle.com/cd/E12839_01/apirefs.1111/e13952/taskhelp/jdbc/jdbc_datasources/ClearStatementCache.html