Question

Basically I’ve uploaded a text file to my host and I want to edit the file and read it with java. I’ve created the permissions for it but im not sure how to do it with Java. This is my code which read/writes locally:

Read:

BufferedReader mainChat = new BufferedReader(new FileReader("./messages/messages.txt"));
String str;
    while ((str = mainChat.readLine()) != null) 
    {
        System.out.println(decrypt.Decrypt(str, salt));
    }
    mainChat.close();

Write:

    FileWriter chatBuffer = new FileWriter("./messages/messages.txt",true);
    BufferedWriter mainChat = new BufferedWriter(chatBuffer);
    mainChat.write(message);
    mainChat.newLine();
    mainChat.flush();
    mainChat.close();

How would I have to modify this to make it work? Thanks

Answer 1

I don’t think you can read/write directly to a file on a web server the way you would on a local filesystem. What you’ll probably need to do is:

1. download the file
2. open it in the local editor
3. when it’s saved, automatically re-upload the file

You can do this all within the editor, and hide this in the app by having it do the download-edit-save-upload in the background. Many text editors will do this by establishing a remote connection similarly, and making the file writing round trip transparent to user.