以Json样式设置字符串格式

Question

I extracted a huge String from a webpage and want to style/formatting this in Json style. The extracted String was originally a Json format but now after extracting this is just a long String. I used JsonObj for this and the formatter does curios things, he moved text from the bottom to top changed the generally the line orders etc.

http://pastebin.com/exwwc6SY JsonFile after Formatting

http://pastebin.com/WHXtE36G The extracted String

And here the code

try {
        FileWriter fw = new FileWriter("/tmp/1.txt");
        String line = ROUtils.getStringFromInputStream(urlConnection.getInputStream());
        System.out.println(line);
        String jsonObj = new JSONObject(line).toString(2);
        fw.write(jsonObj);
    } catch (IOException e) {
        e.printStackTrace();
    }

And the getStringFromInputStream() method

public static String getStringFromInputStream(InputStream is) {

    BufferedReader br = null;
    StringBuilder sb = new StringBuilder();
    String line;
    try {
        br = new BufferedReader(new InputStreamReader(is));
        while ((line = br.readLine()) != null) {
            sb.append(line);
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        if (br != null) {
            try {
                br.close();
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
    }
    return sb.toString();
}

Update

I found a new issue. The JsonObj File its not equal to the original String. I compared the number of Characters (no spaces). The original String has 96311 and the JsonObj has 92636. Can anyone give me a hint what should I do?

Answer 1

You cannot and should not rely on the ordering of elements within a JSON object.

From the JSON specification at http://www.json.org/

An object is an unordered set of name/value pairs.

Answer 2

I found it out why i missed 4000 characters after converting. I forgot to close the FileWriter!

fw.close();

The close() methods calls the flush() method so that the last buffered piece of the String can written down.

Thank u guys.