在JavaFX中，每次我试图添加一个图像时都会出现错误。InvocationTargetException

Question

 package application;

 import java.io.FileInputStream;
 import java.io.FileNotFoundException;

 import javafx.application.Application;
 import javafx.geometry.Pos;
 import javafx.scene.Group;
 import javafx.scene.Scene;
 import javafx.scene.control.Label;
 import javafx.scene.image.Image;
 import javafx.scene.image.ImageView;
 import javafx.scene.layout.GridPane;
 import javafx.scene.paint.Color;
 import javafx.scene.text.Font;
 import javafx.scene.text.FontWeight;
 import javafx.stage.Stage;

public class Practice extends Application {
     public void start(Stage stage) throws FileNotFoundException {         
      //Creating an image 
      Image image = new Image(new 
FileInputStream("Users/user/Documents/Minesweeper/1.png"));  

      //Setting the image view 
      ImageView imageView = new ImageView(image); 

      //Setting the position of the image 
      imageView.setX(50); 
      imageView.setY(25); 

      //setting the fit height and width of the image view 
      imageView.setFitHeight(455); 
      imageView.setFitWidth(500); 

      //Setting the preserve ratio of the image view 
      imageView.setPreserveRatio(true);  

      //Creating a Group object  
      Group root = new Group(imageView);  

      //Creating a scene object 
      Scene scene = new Scene(root, 600, 500);  

      //Setting title to the Stage 
      stage.setTitle("Loading an image");  

      //Adding scene to the stage 
      stage.setScene(scene);

      //Displaying the contents of the stage 
      stage.show(); 
   }  
   public static void main(String args[]) { 
      launch(args); 
   } 

Answer 1

检查图像文件的路径。路径“users/user/documents/minesweeper/1.png”是一个相对路径，请确保users上面的目录是您当前的工作目录。

否则，可以将图像的绝对路径作为FileInputStream的参数。

简单的java文件结构应该如下所示：

WorkingDir
    |
    ----application
    |            |
    |            ----Practice.java
    |----1.png

Image image = new Image(new FileInputStream("1.png"));