weblogic10 数据源配置

weblogic10  数据源配置过程中，连不上自己的库，但是能连上服务器的库。
注：数据库肯定没问题报这个错，好像是网络问题，具体就不知道是哪里的问题了！请高手帮我看看。Messages  Connection test failed.  
  Network error IOException: Connection refused: connect
net.sourceforge.jtds.jdbc.ConnectionJDBC2.(ConnectionJDBC2.java:372)
net.sourceforge.jtds.jdbc.ConnectionJDBC3.(ConnectionJDBC3.java:50)
net.sourceforge.jtds.jdbc.Driver.connect(Driver.java:178)
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)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.access$201(PageFlowRequestProcessor.java:97)
org.apache.beehive.netui.pageflow.PageFlowRequestProcessor$ActionRunner.execute(PageFlowRequestProcessor.java:2044)
org.apache.beehive.netui.pageflow.interceptor.action.internal.ActionInterceptors$WrapActionInterceptorChain.continueChain(ActionInterceptors.java:64)
org.apache.beehive.netui.pageflow.interceptor.action.ActionInterceptor.wrapAction(ActionInterceptor.java:168)
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