小编jys*_*131的帖子

我整夜都在寻找，似乎在任何地方都找不到解决方案。每次我尝试从我的应用程序登录数据库时，我都会得到以下信息：

    java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
    at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1774) ~[jfxrt.jar:?]
    at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1657) ~[jfxrt.jar:?]
    at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86) ~[jfxrt.jar:?]
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238) ~[jfxrt.jar:?]
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191) ~[jfxrt.jar:?]
    at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59) ~[jfxrt.jar:?]
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58) ~[jfxrt.jar:?]
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) ~[jfxrt.jar:?]
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) ~[jfxrt.jar:?]
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) ~[jfxrt.jar:?]
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) ~[jfxrt.jar:?]
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) ~[jfxrt.jar:?]
    at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74) ~[jfxrt.jar:?]
    at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54) ~[jfxrt.jar:?]
    at javafx.event.Event.fireEvent(Event.java:198) ~[jfxrt.jar:?]
    at javafx.scene.Scene$ClickGenerator.postProcess(Scene.java:3470) ~[jfxrt.jar:?]
    at javafx.scene.Scene$ClickGenerator.access$8100(Scene.java:3398) ~[jfxrt.jar:?]
    at javafx.scene.Scene$MouseHandler.process(Scene.java:3766) ~[jfxrt.jar:?]
    at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485) ~[jfxrt.jar:?]
    at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762) ~[jfxrt.jar:?]
    at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494) ~[jfxrt.jar:?]
    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:394) ~[jfxrt.jar:?]
    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295) ~[jfxrt.jar:?]
    at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_181]
    at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$353(GlassViewEventHandler.java:432) ~[jfxrt.jar:?]
    at …