Question

当我从网站打印出原始文本时，它只会在JLabel中放置一行文本，但在控制台中，它们将在各自的行中执行多行。

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.io.IOException;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JLabel;
import javax.swing.JButton;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;


public class closinggui extends JFrame {

private JPanel contentPane;
JLabel label;
JButton button;

/**
 * Launch the application.
 */
public static void main(String[] args) {
    EventQueue.invokeLater(new Runnable() {
        public void run() {
            try {
                closinggui frame = new closinggui();
                frame.setVisible(true);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    });
}
public void code() throws IOException
{
    Document document = Jsoup.connect("http://www.nbcwashington.com/weather/school-closings/").get();
    Elements tags = document.select("p");

    for (Element tag : tags) {
        System.out.println(tag.text());
        label.setText(tag.text());
    }
}
public closinggui() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setBounds(100, 100, 449, 524);
    contentPane = new JPanel();
    contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
    setContentPane(contentPane);
    contentPane.setLayout(null);

    label = new JLabel("");
    label.setBounds(10, 45, 414, 440);
    contentPane.add(label);

    button = new JButton("get closings");
    button.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            try {
                code();
            } catch (IOException e1) {
                e1.printStackTrace();
            }
        }
    });
    button.setBounds(164, 11, 89, 23);
    contentPane.add(button);
}
}

作为样本，它应打印出多个学校关闭，如下所示：

Washington Yu Ying Public Charter School Closed
Whitman-Walker Health Open at 10am
Woodyard Road Nursery Open at 10am

但是在标签上，它显示的是1行，即使是关闭它也只是在与其他HTML标签相同的HTML标签中。那我该怎么做缩进呢？

Answer 1

JLabel label = new JLabel("<html><span>this is <br> your text</span></html>");

或尝试

setText()

用html <br> 在它。

<br>会正确破坏线条。

Answer 2

尝试使用html标签：

String txt = "<html>";
for (Element tag : tags) {
  txt += tag.text() + "<br/>";
}
txt += "</html>";
label.setText(txt);

如何在JLabel的多行上打印setText（）？

2 个答案: