JavaFx TableView 错误

Question

我是 JavaFX 新手。我正在使用 TableView 并尝试将用户从“用户名”和“密码”字段输入的数据放入表中。它只是一个测试程序。我收到以下错误。

SEVERE: javafx.scene.control.Control loadSkinClass Failed to load skin 'StringProperty [bean: TableRow[id=null, styleClass=cell indexed-cell table-row-cell], name: skinClassName, value: com.sun.javafx.scene.control.skin.TableRowSkin]' for control TableRow[id=null, styleClass=cell indexed-cell table-row-cell]
java.lang.ClassCastException: javafx.scene.control.TableColumn cannot be cast to javafx.scene.control.TableColumn$CellDataFeatures
    at javafx.scene.control.cell.PropertyValueFactory.call(PropertyValueFactory.java:93)
    at com.sun.javafx.scene.control.skin.TableRowSkin.recreateCells(TableRowSkin.java:224)
    at com.sun.javafx.scene.control.skin.TableRowSkin.<init>(TableRowSkin.java:87)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
    at javafx.scene.control.Control.loadSkinClass(Control.java:992)
    at javafx.scene.control.Control.access$500(Control.java:71)
    at javafx.scene.control.Control$12.invalidated(Control.java:920)
    at javafx.beans.property.StringPropertyBase.markInvalid(StringPropertyBase.java:127)
    at javafx.beans.property.StringPropertyBase.set(StringPropertyBase.java:161)
    at com.sun.javafx.css.StyleableStringProperty.set(StyleableStringProperty.java:71)
    at javafx.scene.control.Control$12.set(Control.java:912)
    at com.sun.javafx.css.StyleableStringProperty.applyStyle(StyleableStringProperty.java:59)
    at com.sun.javafx.css.StyleableStringProperty.applyStyle(StyleableStringProperty.java:31)
    at com.sun.javafx.css.StyleableProperty.set(StyleableProperty.java:70)
    at com.sun.javafx.css.StyleHelper.transitionToState(StyleHelper.java:902)
    at javafx.scene.Node.impl_processCSS(Node.java:7415)
    at javafx.scene.Parent.impl_processCSS(Parent.java:1146)
    at javafx.scene.control.Control.impl_processCSS(Control.java:1102)
    at com.sun.javafx.scene.control.skin.VirtualFlow.setCellIndex(VirtualFlow.java:1598)
    at com.sun.javafx.scene.control.skin.VirtualFlow.getCell(VirtualFlow.java:1500)
    at com.sun.javafx.scene.control.skin.VirtualFlow.getCellLength(VirtualFlow.java:1523)
    at com.sun.javafx.scene.control.skin.VirtualFlow$3.call(VirtualFlow.java:478)
    at com.sun.javafx.scene.control.skin.VirtualFlow$3.call(VirtualFlow.java:476)
    at com.sun.javafx.scene.control.skin.PositionMapper.computeViewportOffset(PositionMapper.java:143)
    at com.sun.javafx.scene.control.skin.VirtualFlow.layoutChildren(VirtualFlow.java:1001)
    at javafx.scene.Parent.layout(Parent.java:1018)
    at javafx.scene.Parent.layout(Parent.java:1028)
    at javafx.scene.Parent.layout(Parent.java:1028)
    at javafx.scene.Parent.layout(Parent.java:1028)
    at javafx.scene.Scene.layoutDirtyRoots(Scene.java:513)
    at javafx.scene.Scene.doLayoutPass(Scene.java:484)
    at javafx.scene.Scene.access$3900(Scene.java:169)
    at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2199)
    at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:363)
    at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:460)
    at com.sun.javafx.tk.quantum.QuantumToolkit$9.run(QuantumToolkit.java:329)
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at com.sun.glass.ui.win.WinApplication.access$100(WinApplication.java:29)
    at com.sun.glass.ui.win.WinApplication$3$1.run(WinApplication.java:73)
    at java.lang.Thread.run(Thread.java:722)

Answer 1

了解一些附加信息。我也遇到了同样的异常。我发现在设置 TableColumn 实例时需要调用“setCellValueFactory”方法。我错误地调用了“setCellFactory”。