在Java中从String转换为JSONArray或JSONObject

Question

I'm trying to use the JSON library to consume twitter information from the get search feature. I'm getting the error:
A JSONArray text must start with '[' at 1 [character 2 line 1]

So it's basically in the wrong form. Some people are saying this needs to be an object but everytime I call the constructor it says that it can't take a String as input. How do I get this string into the form of a JSONArray so that I can access it's elements.

Here is my code:

URL twitterSource = new URL("http://search.twitter.com/search.json?q=google");
ByteArrayOutputStream urlOutputStream = new ByteArrayOutputStream();

IOUtils.copy(twitterSource.openStream(), urlOutputStream);
String urlContents = urlOutputStream.toString();

// parse JSON
System.out.println(urlContents);
JSONArray jsonArray = new JSONArray(urlContents);

// use
for (int i = 0; i < jsonArray.length(); i++) {
    JSONObject jsonObject = jsonArray.getJSONObject(i);

    System.out.println(jsonObject.getString("id"));
    System.out.println(jsonObject.getString("text"));               
    System.out.println(jsonObject.getString("created_at"));
}

my print statement shows the string contains:

{"completed_in":0.318,"max_id":144850937012428800,"max_id_str":"144850937012428800","next_page":"?page=2.....................

This is a string in the form of a JSON object but it is not actually an object. It's still a string. I'm printing a String. HOw can I get this into an Object or better yet a JSONArray so that I can actually access its elements.

Answer 1

那是一个JSON 对象 ，而不是一个数组。