WebLogic配置错误，求解！！！

小弟是个初学者，求求各位高手解释一下，下面的错误是什么意思？？？
Access denied for user 'OA'@'localhost' (using password: YES)
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:940)
com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2864)
com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:806)
com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3263)
com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1176)
com.mysql.jdbc.Connection.createNewIO(Connection.java:2638)
com.mysql.jdbc.Connection.(Connection.java:1525)
com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:260)
com.bea.console.utils.jdbc.JDBCUtils.testConnection(JDBCUtils.java:504)
com.bea.console.actions.jdbc.datasources.createjdbcdatasource.CreateJDBCDataSource.testConnectionConfiguration(CreateJDBCDataSource.java:369)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:585)
org.apache.beehive.netui.pageflow.FlowController.invokeActionMethod(FlowController.java:870)
org.apache.beehive.netui.pageflow.FlowController.getActionMethodForward(FlowController.java:809)
org.apache.beehive.netui.pageflow.FlowController.internalExecute(FlowController.java:478)
org.apache.beehive.netui.pageflow.PageFlowController.internalExecute(PageFlowController.java:306)
org.apache.beehive.netui.pageflow.FlowController.execute(FlowController.java:336)
org.apache.beehive.netui.pageflow.internal.FlowControllerAction.execute(FlowControllerAction.java:52)