JSON parse database to String

Question

I created an application that uses JSON for the database, and it seems to write fine, and the file reader reads the database fine, but I cant seem to get the database values from the database value.

here is my parsing code:

  String userEnteredString = UserEntered.getText(); 
    String userHomeLocal = Tutschedule.userHome; 
    Reader dataFile = null; 
    try {
        dataFile = new FileReader(userHomeLocal+"/Users/"+userEnteredString+".data");
    } catch (FileNotFoundException ex) {
        Logger.getLogger(LoginForm.class.getName()).log(Level.SEVERE, null, ex);
    }
    String dbData = dataFile.toString();
    try {
        JSONObject dbObject = new JSONObject(dbData);
    } catch (JSONException ex) {
        Logger.getLogger(LoginForm.class.getName()).log(Level.SEVERE, null, ex);
    }
    System.out.println(dbData); 
    JSONObject dataInfo = new JSONObject(dbData);
    String password = dataInfo.getString("password");
    System.out.println(password); 

    BufferedReader buffered = new BufferedReader(dataFile); 
    String test = null; 
    try { 
        test = buffered.readLine();
    } catch (IOException ex) {
        Logger.getLogger(LoginForm.class.getName()).log(Level.SEVERE, null, ex);
    }

The problem is when I print password it doesnt print anything, leading me to think that the password field is not processed.

here is an example of the database:

{"username":"user","password":"test"}

Thanks!

@AaronKurtzhals The question is clear if you take the time to read the post. — Beau Grantham
– Beau Grantham, Commented Nov 29, 2012 at 17:59
it would be useful if you posted the output of the above code. ie, does "example of the database" get printed when System.out.println(dbData); is executed? — Tom Carchrae
– Tom Carchrae, Commented Nov 29, 2012 at 18:14

digitaljoel · Accepted Answer · 2012-11-29 18:00:12Z

3

I don't believe FileReader.toString() is doing what you think it's doing. FileReader inherits toString from object, which means that it is just going to print out the reference, not the contents of the file, and yet you are trying to parse that as JSON. In that case you should have a severe log message though.

In order to read the contents of the file, you should use the read method on the reader or make it easy on yourself and use commons-io FileUtils#readFileToString or something similar.

answered Nov 29, 2012 at 18:00

digitaljoel

26.6k15 gold badges94 silver badges116 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

JSON parse database to String

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related