Java - mkdir() 不写目录

Question

我正在尝试创建一个目录，但似乎每次都失败了？我已经检查过这也不是权限问题，我有写入该目录的完全权限。提前致谢。

代码如下:

private void writeTextFile(String v){
    try{

        String yearString = convertInteger(yearInt);
        String monthString = convertInteger(month);
        String fileName = refernce.getText();
        File fileDir = new File("C:\\Program Files\\Sure Important\\Report Cards\\" + yearString + "\\" + monthString);
        File filePath = new File(fileDir + "\\"+ fileName + ".txt");
        writeDir(fileDir);
        // Create file 
        FileWriter fstream = new FileWriter(filePath);
        try (BufferedWriter out = new BufferedWriter(fstream)) {
            out.write(v);
        }
    }catch (Exception e){//Catch exception if any
    System.err.println("Error: " + e.getMessage());
    }
}

private void writeDir(File f){
    try{
         if(f.mkdir()) { 
             System.out.println("Directory Created");
        } else {
        System.out.println("Directory is not created");
        }
    } catch(Exception e){
        e.printStackTrace();
    }
}

public static String convertInteger(int i) {
    return Integer.toString(i);
}

Calendar cal = new GregorianCalendar();
public int month = cal.get(Calendar.MONTH);
public int yearInt = cal.get(Calendar.YEAR);

这是输出:

Directory is not created
Error: C:\Program Files\Sure Important\Report Cards\2012\7\4532.txt (The system cannot find the path specified)

Answer 1

可能是因为 File.mkdir 仅在父目录存在时才创建目录。尝试使用 File.mkdirs这会创建所有必要的目录。

这是对我有用的代码。

private void writeDir(File f){
    try{
         if(f.mkdirs()) { 
             System.out.println("Directory Created");
        } else {
        System.out.println("Directory is not created");
        }
    } catch(Exception e){
            //  Demo purposes only.  Do NOT do this in real code.  EVER.
            //  It squashes exceptions ...
        e.printStackTrace();
    }
}

我所做的唯一更改是将 f.mkdir() 更改为 f.mkdirs() 并且它起作用了