我想把一个RadioButton绑定到一个String。如果字符串是"x"如果字符串为"y"，则应选中单选按钮。单选按钮不应该被选中。至少我知道我需要一个豆子绑定转换器。这是我尝试过的，但它不起作用。
public class TypToBooleanConverter extends Converter {
@Override
public Object convertForward(Object value) {
return value.toString().equals("x");
}
@Override
public Object convertReverse(Object value) {
if (value.toString().equals("true")) {
return "x";
}
else {
return false;
}
}}
但是我收到异常。希望有人能帮我解决这个问题。
更新:
下面是完整的堆栈跟踪:Exception in thread "AWT-EventQueue-0" java.lang.Error: java.lang.reflect.InvocationTargetException
at org.jdesktop.application.ApplicationAction.actionFailed(ApplicationAction.java:859)
at org.jdesktop.application.ApplicationAction.noProxyActionPerformed(ApplicationAction.java:665)
at org.jdesktop.application.ApplicationAction.actionPerformed(ApplicationAction.java:698)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
at java.awt.Component.processMouseEvent(Component.java:6267)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at java.awt.Component.processEvent(Component.java:6032)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4630)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2478)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jdesktop.application.ApplicationAction.noProxyActionPerformed(ApplicationAction.java:662)
... 27 more
Caused by: org.jdesktop.beansbinding.PropertyResolutionException: Exception invoking method public void org.jdesktop.swingbinding.adapters.AbstractButtonAdapterProvider$Adapter.setSelected(boolean) on org.jdesktop.swingbinding.adapters.AbstractButtonAdapterProvider$Adapter@1958bf9
at org.jdesktop.beansbinding.BeanProperty.invokeMethod(BeanProperty.java:791)
at org.jdesktop.beansbinding.BeanProperty.write(BeanProperty.java:891)
at org.jdesktop.beansbinding.BeanProperty.setValue(BeanProperty.java:571)
at org.jdesktop.beansbinding.Binding.refreshUnmanaged(Binding.java:1229)
at org.jdesktop.beansbinding.Binding.refresh(Binding.java:1207)
at org.jdesktop.beansbinding.AutoBinding.tryRefreshThenSave(AutoBinding.java:162)
at org.jdesktop.beansbinding.AutoBinding.sourceChangedImpl(AutoBinding.java:227)
at org.jdesktop.beansbinding.Binding.sourceChanged(Binding.java:1411)
at org.jdesktop.beansbinding.Binding.access$1200(Binding.java:38)
at org.jdesktop.beansbinding.Binding$PSL.propertyStateChanged(Binding.java:1618)
at org.jdesktop.beansbinding.PropertyHelper.firePropertyStateChange(PropertyHelper.java:212)
at org.jdesktop.beansbinding.ELProperty.notifyListeners(ELProperty.java:688)
at org.jdesktop.beansbinding.ELProperty.access$800(ELProperty.java:155)
at org.jdesktop.beansbinding.ELProperty$SourceEntry.processSourceChanged(ELProperty.java:312)
at org.jdesktop.beansbinding.ELProperty$SourceEntry.sourceChanged(ELProperty.java:326)
at org.jdesktop.beansbinding.ELProperty$SourceEntry.propertyChange(ELProperty.java:333)
at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
at lagerverwaltung.articleEditor.setCurrentRecord(articleEditor.java:42)
at lagerverwaltung.LagerverwaltungView.newRecord(LagerverwaltungView.java:141)
... 32 more
Caused by: java.lang.IllegalArgumentException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jdesktop.beansbinding.BeanProperty.invokeMethod(BeanProperty.java:782)
... 51 more
转换不正确。你应该从String转换到像Boolean这样的类型，然后从Boolean转换回String。您可能需要更改convertReverse()方法，以返回除空String之外的其他内容。
public class BooleanConverter extends Converter {
@Override
public Boolean convertForward(String value) {
if("x".equals(value) {
return Boolean.TRUE;
} else {
return Boolean.FALSE;
}
}
@Override
public String convertReverse(Boolean value) {
if (value.booleanValue()) {
return "x";
} else {
return "";
}
}
}