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我试图让一个按钮工作,但是当我点击它时,它给出了一个错误这是错误
Exception in thread "JavaFX Application Thread" java.lang.IllegalArgumentException: argument type mismatch
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.sun.javafx.reflect.Trampoline.invoke(MethodUtil.java:76)
at jdk.internal.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at javafx.base/com.sun.javafx.reflect.MethodUtil.invoke(MethodUtil.java:273)
at javafx.fxml/com.sun.javafx.fxml.MethodHelper.invoke(MethodHelper.java:83)
at javafx.fxml/javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1782)
at javafx.fxml/javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1670)
at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.base/javafx.event.Event.fireEvent(Event.java:198)
at javafx.graphics/javafx.scene.Scene$ClickGenerator.postProcess(Scene.java:3564)
at javafx.graphics/javafx.scene.Scene$ClickGenerator.access$8200(Scene.java:3492)
at javafx.graphics/javafx.scene.Scene$MouseHandler.process(Scene.java:3860)
at javafx.graphics/javafx.scene.Scene$MouseHandler.access$1200(Scene.java:3579)
at javafx.graphics/javafx.scene.Scene.processMouseEvent(Scene.java:1849)
at javafx.graphics/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2588)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:397)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:434)
at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:390)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:433)
at javafx.graphics/com.sun.glass.ui.View.handleMouseEvent(View.java:556)
at javafx.graphics/com.sun.glass.ui.View.notifyMouse(View.java:942)
at javafx.graphics/com.sun.glass.ui.mac.MacView.notifyMouse(MacView.java:127)
这是我正在使用的 Controller
package HMS;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.PasswordField;
import javafx.scene.control.TextField;
import javafx.stage.Stage;
import java.io.IOException;
public class Controller {
@FXML
private PasswordField tf_pfield;
@FXML
private Button btn_login;
@FXML
private TextField tf_uname;
@FXML
private Button Doc_adPan;
@FXML
private Button Lab_adPan;
@FXML
private Button Pharma_adPan;
@FXML
private Button Finance_adPan;
@FXML
private Button Settings_adPan;
@FXML
private Button Staff_adPan;
@FXML
private Button Logout_adPan;
@FXML
private Button Wards_adPan;
@FXML
private void handlebuttonclicks(javafx.event.ActionEvent mouseEvent)
{
if(mouseEvent.getSource() == Doc_adPan)
{
}
else if(mouseEvent.getSource() == Lab_adPan)
{
}
else if(mouseEvent.getSource() == Logout_adPan)
{
loadStage("Login.fxml");
}
else if(mouseEvent.getSource() == Staff_adPan)
{
}
else if(mouseEvent.getSource() == Settings_adPan)
{
}
else if(mouseEvent.getSource() == Pharma_adPan)
{
}
else if(mouseEvent.getSource() == Finance_adPan)
{
}
else if(mouseEvent.getSource() == Wards_adPan)
{
}
}
private void loadStage(String fxml)
{
try {
Parent root = FXMLLoader.load(getClass().getResource(fxml));
Stage stage = new Stage();
stage.setScene(new Scene(root));
stage.hide();
} catch (IOException e) {
e.printStackTrace();
}
}
}
这是该按钮所在的 FXML 文件。
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.ButtonBar?>
<?import javafx.scene.image.Image?>
<?import javafx.scene.image.ImageView?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.Pane?>
<?import javafx.scene.layout.VBox?>
<?import javafx.scene.text.Font?>
<?import javafx.scene.text.Text?>
<VBox prefHeight="742.0" prefWidth="845.0" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="HMS.Controller">
<children>
<AnchorPane onMouseClicked="#handlebuttonclicks" style="-fx-background-color: white;" VBox.vgrow="ALWAYS">
<children>
<Button fx:id="Doc_adPan" layoutX="344.0" layoutY="159.0" mnemonicParsing="false" onAction="#handlebuttonclicks" onMouseClicked="#handlebuttonclicks" opacity="0.0" prefHeight="123.0" prefWidth="62.0" stylesheets="@Styles.css" text="Button" />
<Button fx:id="Lab_adPan" layoutX="532.0" layoutY="175.0" mnemonicParsing="false" onAction="#handlebuttonclicks" onMouseClicked="#handlebuttonclicks" opacity="0.0" prefHeight="123.0" prefWidth="62.0" text="Button" />
<Button fx:id="Pharma_adPan" layoutX="724.0" layoutY="163.0" mnemonicParsing="false" onAction="#handlebuttonclicks" onMouseClicked="#handlebuttonclicks" opacity="0.0" prefHeight="123.0" prefWidth="62.0" text="Button" />
<Button fx:id="Finance_adPan" layoutX="344.0" layoutY="332.0" mnemonicParsing="false" onAction="#handlebuttonclicks" onMouseClicked="#handlebuttonclicks" opacity="0.0" prefHeight="123.0" prefWidth="62.0" text="Button" />
<Button fx:id="Settings_adPan" layoutX="528.0" layoutY="332.0" mnemonicParsing="false" onAction="#handlebuttonclicks" onMouseClicked="#handlebuttonclicks" opacity="0.0" prefHeight="123.0" prefWidth="62.0" text="Button" />
<Button fx:id="Staff_adPan" layoutX="722.0" layoutY="329.0" mnemonicParsing="false" onAction="#handlebuttonclicks" onMouseClicked="#handlebuttonclicks" opacity="0.0" prefHeight="123.0" prefWidth="62.0" text="Button" />
<Button fx:id="Logout_adPan" layoutX="756.0" layoutY="18.0" mnemonicParsing="false" onAction="#handlebuttonclicks" onMouseClicked="#handlebuttonclicks" opacity="0.0" prefHeight="89.0" prefWidth="62.0" text="Button" />
<Button fx:id="Wards_adPan" layoutX="334.0" layoutY="502.0" mnemonicParsing="false" onAction="#handlebuttonclicks" onMouseClicked="#handlebuttonclicks" opacity="0.0" prefHeight="123.0" prefWidth="62.0" text="Button" />
<Pane layoutY="-1.0" prefHeight="743.0" prefWidth="249.0" style="-fx-background-color: #DFF6F0 #DFF6F0;">
<children>
<Text layoutX="91.0" layoutY="140.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Welcome!">
<font>
<Font size="17.0" />
</font>
</Text>
<Text layoutX="112.0" layoutY="157.0" strokeType="OUTSIDE" strokeWidth="0.0" text="USER" />
<Text fill="#1273ba" layoutX="57.0" layoutY="482.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Sharif Surgical Hospital">
<font>
<Font size="14.0" />
</font>
</Text>
<ImageView fitHeight="110.0" fitWidth="125.0" layoutX="62.0" layoutY="310.0">
<image>
<Image url="@../sss/mainLogo.png" />
</image>
</ImageView>
</children>
</Pane>
<ButtonBar layoutX="174.0" layoutY="92.0" prefHeight="80.0" prefWidth="89.0" />
<Text layoutX="441.0" layoutY="81.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Admin Panel" textAlignment="CENTER" wrappingWidth="220.0">
<font>
<Font size="36.0" />
</font>
</Text>
<Text layoutX="767.0" layoutY="95.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Logout" wrappingWidth="53.66004199452357">
<font>
<Font size="16.0" />
</font></Text>
<ImageView fitHeight="75.0" fitWidth="75.0" layoutX="334.0" layoutY="163.0">
<image>
<Image url="@../sss/doctor.png" />
</image>
</ImageView>
<ImageView fitHeight="75.0" fitWidth="75.0" layoutX="524.0" layoutY="163.0">
<image>
<Image url="@../sss/Lab.png" />
</image>
</ImageView>
<ImageView fitHeight="75.0" fitWidth="75.0" layoutX="717.0" layoutY="161.0">
<image>
<Image url="@../sss/Pharmacy.png" />
</image>
</ImageView>
<ImageView fitHeight="75.0" fitWidth="72.0" layoutX="336.0" layoutY="332.0">
<image>
<Image url="@../sss/Finance.png" />
</image>
</ImageView>
<ImageView fitHeight="75.0" fitWidth="75.0" layoutX="522.0" layoutY="329.0">
<image>
<Image url="@../sss/settings.png" />
</image>
</ImageView>
<ImageView fitHeight="75.0" fitWidth="75.0" layoutX="715.0" layoutY="332.0">
<image>
<Image url="@../sss/Staff.png" />
</image>
</ImageView>
<ImageView fitHeight="75.0" fitWidth="75.0" layoutX="334.0" layoutY="502.0">
<image>
<Image url="@../sss/Wards.png" />
</image>
</ImageView>
<ImageView fx:id="Logout_adPan1" fitHeight="40.0" fitWidth="40.0" layoutX="771.0" layoutY="25.0">
<image>
<Image url="@../sss/logout.png" />
</image>
</ImageView>
<Text layoutX="346.0" layoutY="278.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Doctor">
<font>
<Font size="18.0" />
</font>
</Text>
<Text layoutX="548.0" layoutY="278.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Lab" wrappingWidth="30.958903300616043">
<font>
<Font size="18.0" />
</font>
</Text>
<Text layoutX="727.0" layoutY="278.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Doctor">
<font>
<Font size="18.0" />
</font>
</Text>
<Text layoutX="346.0" layoutY="437.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Finance">
<font>
<Font size="18.0" />
</font>
</Text>
<Text layoutX="528.0" layoutY="437.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Settings">
<font>
<Font size="18.0" />
</font>
</Text>
<Text layoutX="727.0" layoutY="437.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Staff">
<font>
<Font size="18.0" />
</font>
</Text>
<Text layoutX="347.0" layoutY="611.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Wards">
<font>
<Font size="18.0" />
</font>
</Text>
</children>
</AnchorPane>
</children>
</VBox>
这是我尝试使用按钮访问的 FXML 文件
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.PasswordField?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.image.Image?>
<?import javafx.scene.image.ImageView?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.text.Text?>
<AnchorPane maxWidth="-1.0" prefHeight="400.0" prefWidth="370.0" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="HMS.Controller">
<children>
<Text fill="#1273ba" fontSmoothingType="LCD" layoutX="67.0" layoutY="286.0" strokeType="OUTSIDE" strokeWidth="0.0" style="-fx-font-size: 20; -fx-font-family: Times New Roman;" text="Sharif Surgical Hospital" />
<Text layoutX="430.0" layoutY="89.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Welcome to login page!" />
<ImageView fitHeight="150.0" fitWidth="200.0" layoutX="79.0" layoutY="85.0" pickOnBounds="true" preserveRatio="true">
<image>
<Image url="@../sss/mainLogo.png" />
</image>
</ImageView>
<AnchorPane layoutX="331.0" prefHeight="400.0" prefWidth="325.0" style="-fx-background-color: #1273ba;">
<children>
<PasswordField fx:id="tf_pfield" layoutX="122.0" layoutY="233.0" prefHeight="27.0" prefWidth="152.0" promptText="Enter Password" style="-fx-background-color: white;" />
<Button fx:id="btn_login" layoutX="160.0" layoutY="290.0" mnemonicParsing="false" text="Login" textFill="#1273ba" />
<Text fill="WHITE" layoutX="31.0" layoutY="208.0" strokeType="OUTSIDE" strokeWidth="0.0" style="-fx-font-size: 16;" text="Username" />
<Text fill="WHITE" layoutX="32.0" layoutY="251.0" strokeType="OUTSIDE" strokeWidth="0.0" style="-fx-font-size: 16;" text="Password" />
<Text fill="WHITE" layoutX="138.0" layoutY="154.0" strokeType="OUTSIDE" strokeWidth="0.0" style="-fx-font-size: 20;" text="Login" />
<TextField fx:id="tf_uname" layoutX="122.0" layoutY="192.0" prefWidth="152.0" promptText="Enter Username" style="-fx-background-color: white;" />
</children>
</AnchorPane>
</children>
</AnchorPane>
这里是主要内容
封装HMS;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class Main extends Application {
@Override
public void start(Stage primaryStage) throws Exception{
Parent root = FXMLLoader.load(getClass().getResource("AdminDashboard.fxml"));
primaryStage.setTitle("Login");
primaryStage.setScene(new Scene(root));
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
我正在尝试使用注销按钮(Logout_adPan)。我已经添加了所有引用,这是使用场景生成器构建的。我不知道我做错了什么
最佳答案
您正在尝试使用符号 ==
比较两个对象,而您必须使用方法 equals()
来比较两个对象,如果它们相等,该方法将返回 true,否则将返回 false。
不要忘记将 mouseEvent.getSource()
转换为 Button
试试这个:
if(((Button)mouseEvent.getSource()).equals(Doc_adPan))
{
}
else if(((Button)mouseEvent.getSource()).equals(Lab_adPan))
{
}
else if(((Button)mouseEvent.getSource()).equals(Logout_adPan))
{
loadStage("Login.fxml");
}
else if(((Button)mouseEvent.getSource()).equals(Staff_adPan))
{
}
else if(((Button)mouseEvent.getSource()).equals(Settings_adPan))
{
}
else if(((Button)mouseEvent.getSource()).equals(Pharma_adPan))
{
}
else if(((Button)mouseEvent.getSource()).equals(Finance_adPan))
{
}
else if(((Button)mouseEvent.getSource()).equals(Wards_adPan))
{
}
并且仅使用onAction="#handlebuttonclicks"
,而不是onMouseClicked
。
并从 AnchorPane
中删除 onMouseClicked="#handlebuttonclicks"
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