这是我自己达成的解决方案。上面的代码创建简单的用户界面。按钮正在计算给定路径的大小，并正在打印给定文件夹的大小以及给定路径中的文件和文件夹的数量。
- FolderSizeCounter.java
公共类FileSizeCounter {
public static long getFileSize(File folder){
long foldersize = 0;
File[] filelist = folder.listFiles();
if(filelist!=null){
for (int i=0; i < filelist.length; i++) {
if(!filelist[i].isDirectory() && !filelist[i].isFile()){
UI.nonfilecount++;
}
if (filelist[i].isDirectory()) {
foldersize += getFileSize(filelist[i]);
UI.foldercount++;
} else {
foldersize += filelist[i].length();
UI.size+=filelist[i].length();
UI.filecount++;
}
}
}
return foldersize;
}
public static String getReadableSizeByte(long size) {
if(size <= 0) return "0";
final String[] units = new String[] { "B", "KB", "MB", "GB", "TB" };
int digitGroups = (int) (Math.log10(size)/Math.log10(1024));
return new DecimalFormat("#,##0.#").format(size/Math.pow(1024, digitGroups))
+ " " + units[digitGroups];
}
public static String getReadableSizeK(long size) {
if(size <= 0) return "0";
final String[] units = new String[] { " ","K", "M", "B", "T"};
int digitGroups = (int) (Math.log10(size)/Math.log10(1000));
return new DecimalFormat("#,##0.#").format(size/Math.pow(1000, digitGroups))
+ " " + units[digitGroups];
}
}
UI.java
公共class UI im补充（9.3）的ActionListener {
private JFrame fr;
private JPanel pn;
static JLabel folderSize, info, folderCountlbl, fileCountlbl;
private JTextField tf;
private JButton but;
public static long size, foldercount, filecount, nonfilecount;
public int i = 0;
public UI() {
fr = new JFrame();
pn = new JPanel();
info = new JLabel("Type the folder path !!!");
folderSize = new JLabel();
folderCountlbl = new JLabel();
fileCountlbl = new JLabel();
tf = new JTextField(12);
but = new JButton("Count the size !!!");
pn.add(info);
pn.add(tf);
pn.add(but);
pn.add(folderSize);
pn.add(folderCountlbl);
pn.add(fileCountlbl);
but.addActionListener(this);
fr.add(pn);
fr.setSize(220, 180);
fr.setLocationRelativeTo(null);
fr.setResizable(false);
fr.setVisible(true);
fr.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == but) {
if (new File(tf.getText()).isDirectory()) {
Thread t = new Thread(new Runnable() {
@Override
public void run() {
System.out.println(FileSizeCounter
.getReadableSizeByte(FileSizeCounter.getFileSize(new File(tf.getText()))));
}
});
Thread t1 = new Thread(new Runnable() {
@Override
public void run() {
while (t.isAlive()) {
folderSize.setText("Size of the folder " + FileSizeCounter.getReadableSizeByte((size)));
folderCountlbl
.setText("Number of folders " + FileSizeCounter.getReadableSizeK(foldercount));
fileCountlbl.setText("Number of files " + FileSizeCounter.getReadableSizeK(filecount));
try {
Thread.sleep(1);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
folderSize.setText("Size of the folder " + FileSizeCounter.getReadableSizeByte((size)));
folderCountlbl.setText("Number of folders " + FileSizeCounter.getReadableSizeK(foldercount));
fileCountlbl.setText("Number of files " + FileSizeCounter.getReadableSizeK(filecount));
}
});
t1.start();
t.start();
}
else {
JOptionPane.showMessageDialog(fr, "Wrong path. Try again.", "ERROR", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}
}
}
}
和Main.java
公共类主要{
public static void main(String args[]) {
new UI();
}
}
设我谷歌你：https：//docs.oracle.com/javase/tutorial/uiswing/ components/progress.html＃bars，https://docs.oracle.com/javase/tutorial/uiswing/examples/components/ProgressBarDemoProject/src/components/ProgressBarDemo.java – Yev
那么，你想使用的JLabel在哪里？你试过什么了？你希望我们写你的代码吗？ – UDKOX
谢谢你，我自己找到了解决方案，并且在回答中发布它，也许有人会使用它。 –