Parsing JSON in Android Application

Question

Old JSON:

{
"listing" : [
     {
    "id" : "l101",
    "name" : "Paul"
     }
   ]
}

and Code to parse JSON,

private static final String TAG_LISTING = "listing";

    JSONArray contacts = null;

ArrayList<HashMap<String, String>> contactList = new ArrayList<HashMap<String, String>>();

    JSONParser jParser = new JSONParser();

    JSONObject json = jParser.getJSONFromUrl(url);

    try {
        contacts = json.getJSONArray(TAG_LISTING);

        for(int i = 0; i < contacts.length(); i++){
            JSONObject c = contacts.getJSONObject(i);
           }
      }

But my new JSON looks like below:

 [
     {
    "id" : "l101",
    "name" : "Paul"
     }
 ]

so my question, where i need to make changes in my code, to parse new JSON ?

Answer 1

首先在 Here验证您的 json。

Answer 2

You should take a look to this tutorial: http://www.mkyong.com/java/json-simple-example-read-and-write-json/

Basically first you have to have a JSONObject and then you have to associate you JSONArray to a "name tag".

Answer 3

After correcting your JSON parse it like this:

private static final String TAG_LISTING = "listing";

JSONArray contacts = null;

ArrayList<HashMap<String, String>> contactList = new ArrayList<HashMap<String, String>>();

JSONParser jParser = new JSONParser();

JSONArray json = jParser.getJSONFromUrl(url);

try {

    for(int i = 0; i < json.length(); i++){
        JSONObject c = json.getJSONObject(i);
       }
  }