JButton和JFileChooser的错误消息 [英] error message with JButton and JFileChooser
本文介绍了JButton和JFileChooser的错误消息的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想要一个带有JFileChooser动作的按钮.这是我写的代码:
I want to have a button with a JFileChooser action. This is the code that I wrote:
public class Main {
private static String fullPath;
private JFileChooser inputFile;
public static void main(String args[]) throws FileNotFoundException, IOException {
try {
GridBagConstraints gbc = new GridBagConstraints();
JButton inputButton = new JButton("Browse input file");
myPanel.add(inputButton, gbc);
inputButton.addActionListener(new ActionListener() {
public void ActionPerformed(ActionEvent e) {
JFileChooser inputFile = new JFileChooser();
inputFile.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
File file1 = inputFile.getSelectedFile();
String fullpathTemp = (String) file1.getAbsolutePath();
fullPath = fullpathTemp;
}
public void actionPerformed(ActionEvent e) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
});
} catch (Exception e) {
System.err.println("Error: " + e.getMessage());
} finally {
}
}
}
但是问题是,当我运行它时,出现了很长的错误消息,该消息是以下内容的一部分:
but the problem is that when I run it, I got a long error message that is part of:
Exception in thread "AWT-EventQueue-0" java.lang.UnsupportedOperationException: Not supported yet.
at main.Main$1.actionPerformed(Main.java:200)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
推荐答案
此处的ActionListener
明确地抛出UnsupportedOperationException
.将JFileChooser
功能移到ActionListener
:
The ActionListener
here is explicitly throwing an UnsupportedOperationException
. Move the JFileChooser
functionality into the ActionListener
:
input_button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JFileChooser inputFile = new JFileChooser();
inputfile.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
if (inputfile.showOpenDialog(myFrame) == JFileChooser.APPROVE_OPTION) {
File file1 = inputFile.getSelectedFile();
String fullpathTemp = (String) file1.getAbsolutePath();
...
}
}
});
这篇关于JButton和JFileChooser的错误消息的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文