Java – create a directory, if it does not exist, and then create the files in that directory

The condition is that if a directory exists, you must create files in that specific directory and create a new directory

The following code only creates a file with a new directory but not an existing directory For example, the directory name would be like "getdirection"

String PATH = "/remote/dir/server/";

String fileName = PATH.append(id).concat(getTimeStamp()).append(".txt");  

String directoryName = PATH.append(this.getClassName());   

File file  = new File(String.valueOf(fileName));

File directory = new File(String.valueOf(directoryName));

 if(!directory.exists()){

             directory.mkdir();
            if(!file.exists() && !checkEnoughDiskSpace()){
                file.getParentFile().mkdir();
                file.createNewFile();
            }
}
FileWriter fw = new FileWriter(file.getAbsoluteFile());
BufferedWriter bw = new BufferedWriter(fw);
bw.write(value);
bw.close();

Solution

This code first checks the existence of the directory, if not, creates it, and then creates the file Note that I can't verify some method calls because I don't have complete code, so I assume that calling gettimestamp () and getclassname () works You should also be using any Java io. * Class - the function you write to the file should throw this exception (and handle it elsewhere), or you should directly in the method In addition, I think id is a string type - I didn't know your code didn't explicitly define it If it is something like int, you should convert it to a string before using it in the file name, as I did here

In addition, I replaced your append phone with concat or as I think appropriate

public void writeFile(String value){
    String PATH = "/remote/dir/server/";
    String directoryName = PATH.concat(this.getClassName());
    String fileName = id + getTimeStamp() + ".txt";

    File directory = new File(directoryName);
    if (! directory.exists()){
        directory.mkdir();
        // If you require it to make the entire directory path including parents,// use directory.mkdirs(); here instead.
    }

    File file = new File(directoryName + "/" + fileName);
    try{
        FileWriter fw = new FileWriter(file.getAbsoluteFile());
        BufferedWriter bw = new BufferedWriter(fw);
        bw.write(value);
        bw.close();
    }
    catch (IOException e){
        e.printStackTrace();
        System.exit(-1);
    }
}

If you want to run code on Microsoft Windows, you should not use a bare path name like this - I don't know how it will be handled / in a file name For complete portability, you should use something like file Separator to build the path

Edit: according to the comments of josefscript below, it is not necessary to test the existence of the directory If you create a directory, directory The mkdir() call will return true and false, including the case where the directory already exists