java - 如何让 JFileChooser 记住以前的文件夹？

Question

我试图让 JFileChooser 记住上次打开的位置，然后下次打开那里，但似乎不记得了。我必须打开它两次: 第一次运行时效果很好。但在第二次运行时，第一次运行时的路径仍然被锁定。我必须打开 JFileChooser 对话框两次才能获取更新的路径...

//Integrate ActionListener as anonymous class
this.openItem.addActionListener(new java.awt.event.ActionListener() {
    //Initialise actionPerformed 
    @Override
    public void actionPerformed(java.awt.event.ActionEvent e) {
        //Generate choose file
        this.chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
        int returnVal = this.chooser.showOpenDialog(PDFcheck.this.openItem);
        if (this.theOutString != null){
        this.chooser.setCurrentDirectory(new File(this.theOutString)); }
        if(returnVal == JFileChooser.APPROVE_OPTION) {
        //theOutString = fc.getSelectedFile().getName();
        this.theOutString = this.chooser.getSelectedFile().getPath();
        System.out.println("You chose to open this file: " + this.theOutString);}
        }
        private String theOutString;
        private final JFileChooser chooser = new JFileChooser();
         });

谢谢;-)

Answer 1

问题是您首先显示文件选择器对话框，然后仅设置其当前目录。

您应该首先设置当前目录，然后显示对话框:

if (this.theOutString != null)
    this.chooser.setCurrentDirectory(new File(this.theOutString));
int returnVal = this.chooser.showOpenDialog(PDFcheck.this.openItem);