@Override public void start(Stage primaryStage) {
try {
stage = primaryStage;
gotoLogin();
primaryStage.show();
} catch (Exception ex) {
Logger.getLogger(App.class.getName()).log(Level.SEVERE, null, ex);
}
}
enter code here
public User getLoggedUser() {
return loggedUser;
}
public boolean userLogging(String userId, String password){
if (Authenticator.validate(userId, password)) {
loggedUser = User.of(userId);
gotoProfile();
return true;
} else {
return false;
}
}
public void userLogout(){
loggedUser = null;
gotoLogin();
}
private void gotoProfile() {
try {
replaceSceneContent("../skinFolder/fxml/profile.fxml");
} catch (Exception ex) {
Logger.getLogger(App.class.getName()).log(Level.SEVERE, null, ex);
}
}
private void gotoLogin() {
try {
replaceSceneContent("../skinFolder/fxml/login.fxml");
} catch (Exception ex) {
Logger.getLogger(App.class.getName()).log(Level.SEVERE, null, ex);
}
}
private Parent replaceSceneContent(String fxml) throws Exception {
Parent page = (Parent) FXMLLoader.load(App.class.getResource(fxml), null, new JavaFXBuilderFactory());
Scene scene = stage.getScene();
if (scene == null) {
scene = new Scene(page, 700, 450);
scene.getStylesheets().add(App.class.getResource("../skinFolder/css/defaultSkin.css").toExternalForm());
stage.setScene(scene);
} else {
stage.getScene().setRoot(page);
}
stage.sizeToScene();
return page;
}}
所以我正在尝试使用 FXML 登录示例的示例，只有我为 fxml 提供了其他方式。在 fxml 文件中，我为控制器让路。
The log shows those errors:
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at javafx.fxml.FXMLLoader.loadType(Unknown Source)
at javafx.fxml.FXMLLoader$ValueElement.processAttribute(Unknown Source)
at javafx.fxml.FXMLLoader$InstanceDeclarationElement.processAttribute(Unknown Source)
at javafx.fxml.FXMLLoader$Element.processStartElement(Unknown Source)
at javafx.fxml.FXMLLoader$ValueElement.processStartElement(Unknown Source)
at javafx.fxml.FXMLLoader.processStartElement(Unknown Source)
at javafx.fxml.FXMLLoader.load(Unknown Source)
at javafx.fxml.FXMLLoader.load(Unknown Source)
at Main.App.replaceSceneContent(App.java:115)
at Main.App.gotoProfile(App.java:100)
at Main.App.userLogging(App.java:86)
at skinFolder.controllers.LoginController.processLogin(LoginController.java:28)
登录控制器类
public class LoginController {
@FXML private TextField userId;
@FXML private PasswordField password;
@FXML private Label errorMessage;
@FXML protected void processLogin() {
if(!App.getInstance().userLogging(userId.getText(), password.getText())){
errorMessage.setText("Username/password combination is invalid.");
}
}
}
第 28 行是：
if(!App.getInstance().userLogging(userId.getText(), password.getText())){
我提到 fxml 文件位于主文件夹的另一个文件夹中。当我使用 Oracle 给出的示例时，我不明白为什么会出现此错误，而是使用另一个文件夹结构！
我的应用程序文件夹结构：
- 主要的
- 模型
- 安全
- 皮肤文件夹 - css
- 皮肤文件夹 - fxml
- skinFolder - 控制器
这是 profile.fxml 代码：
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.net.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.shape.*?>
<?import javafx.scene.text.*?>
<AnchorPane id="Profile" styleClass="profile" xmlns:fx="http://javafx.com/fxml" fx:controller="skinFolder.controllers.ProfileController">
<children>
<Button maxHeight="2.0" text="Update" AnchorPane.bottomAnchor="15.0" AnchorPane.rightAnchor="168.0" fx:id="update" onAction="#processUpdate"/>
<Label layoutX="56.0" layoutY="77.0" text="Please review your profile data." fx:id="message" />
<Label layoutX="56.0" layoutY="123.0" text="User:" />
<Label layoutX="56.0" layoutY="224.0" text="Phone:" />
<Label layoutX="56.0" layoutY="173.0" text="Email:" />
<TextField editable="false" layoutX="149.0" layoutY="120.0" maxWidth="2.0" minHeight="30.0" minWidth="215.0" prefHeight="30.0" prefWidth="215.0" fx:id="user" />
<TextField editable="true" layoutX="149.0" layoutY="171" maxWidth="2.0" minHeight="30.0" minWidth="215.0" prefHeight="30.0" prefWidth="215.0" fx:id="email" />
<TextField layoutX="149.0" layoutY="224" maxWidth="2.0" minHeight="30.0" minWidth="215.0" prefHeight="30.0" prefWidth="215.0" fx:id="phone" />
<CheckBox layoutX="402" layoutY="120.0" text="Subscribed to NewsLetter" fx:id="subscribed" />
<Separator layoutX="380" layoutY="110" prefHeight="155" orientation="vertical"/>
<Hyperlink layoutY="24.0" text="logout" AnchorPane.rightAnchor="52.0" fx:id="logout" onAction="#processLogout"/>
<Button disable="true" maxHeight="2" maxWidth="2.0" text="Continue" defaultButton="true" AnchorPane.bottomAnchor="15.0" AnchorPane.rightAnchor="52.0" fx:id="Button" onAction="#processLogout"/>
<Label layoutX="150.0" layoutY="401.0" opacity="0.0" text="Profile successfully updated!" fx:id="success" />
<Label layoutX="56.0" layoutY="284.0" text="Address:" />
<TextArea maxHeight="2.0" maxWidth="2.0" minHeight="85.0" minWidth="448.0" prefHeight="85.0" prefWidth="448.0" AnchorPane.bottomAnchor="69.0" AnchorPane.leftAnchor="149.0" AnchorPane.rightAnchor="52.0" AnchorPane.topAnchor="289.0" fx:id="address" />
</children>
<styleClass>
<String fx:value="profile" />
</styleClass>
<properties>
<elementLockSel>
<Boolean fx:value="true" />
</elementLockSel>
</properties>
</AnchorPane>
有人有什么想法吗？