Question

我想在磁盘上显示的图片旁边添加URL中的图片，但是在第36行中发现错误，并且不知道如何对其进行排序。您能帮我解决吗？

它在线程“ AWT-EventQueue-0” java.lang.Error中返回异常：未解决的编译问题：未处理的异常类型IOException

所以我应该抓住MalformedURLException e + IOException e吗？

import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.awt.Image;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;

public class ObrazPanel extends JPanel {

    private BufferedImage image;
    private BufferedImage image2;

    public ObrazPanel()  {
        super();

    File imageFile = new File("C:\\Users\\KostrzewskiT\\eclipse-workspace\\zdjecie\\src\\zdjecie\\java.jpg");
    //File imageFile2 = new File("C:\\Users\\KostrzewskiT\\eclipse-workspace\\zdjecie\\src\\zdjecie\\java2.jpg");   

        try {
            image = ImageIO.read(imageFile);
        //  image2 = ImageIO.read(imageURL);
        } catch (IOException e) {
            System.err.println("Blad odczytu obrazka");
            e.printStackTrace();
        }

        try {
            URL imageURL = new URL ("http://beautyinspiration.pl/wp-content/uploads/2015/12/i-coach-otw.jpg");
            image2 = ImageIO.read(imageURL);
        } catch (MalformedURLException e) {
            System.err.println("Blad odczytu obrazka");
            e.printStackTrace();
        }

//wymiar wyswietlanych obrazkow
        Dimension dimension = new Dimension(image.getWidth() + image2.getWidth(), image2.getHeight());
        setPreferredSize(dimension);

    }


    @Override
    public void paintComponent(Graphics g) {
        Graphics2D g2d = (Graphics2D) g;
        g2d.drawImage(image, 0, 0, this); //punkty w ktorych jest wyswietlane
        g2d.drawImage(image2, image.getWidth(), 0, this);
    }
}

Answer 1

我用

更正我的代码

try {
    URL imageURL = new URL ("path");
    image2 = ImageIO.read(imageURL.openStream());
} catch (IOException d) {
    System.err.println("Blad odczytu obrazka URL");
    d.printStackTrace();

这是应该正确的方法还是超出最佳实践？

在Java中并排显示磁盘和URL中的图片

1 个答案: