转换为Json对象时出错

Question

I am working with restful webservice and I get json from it like the following

  response = [{"id":1,"name":"Appetizers","image":"iVBORw0KGgoAAAANSUhEUgAAADgAAAAkCAIAAABT8G6pAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAABb5SURBVFhHPVgHUFPrtmbevTPvvnPvO8eKKJ1ASAikEEIaSYBAEkroSLWBHex67A3FBhYsWEFUBBuCDRRRpCMlhPS+0zs1gHD0HN72vjfvnzV/dpI9s7 ....

after that I want to convert this json to JSONObject

  JSONObject obj = new JSONObject(response);

and when I execute this command I get the follwoing error

org.json.JSONException: Value [{"resturantID":{"phoneNo":"a","id":1,"fax":"a","address":"a" ...

my program was working good when I was using glassfish 3 because the json structure was different from this what is the problem ?

Answer 1

This is a JSONArray and not a JSONObject - to make a JSONObject from it, use

JSONObject jsonObject = jsonArray.getJSONObject(0);

this gets the first JSONObject from this JSONArray.

If you have multiple JSONObjects, use this:

JSONObject jsonObject;
for(int n = 0; n < jsonArray.length(); n++)
{
    jsonObject = jsonArray.getJSONObject(n);
}

Answer 2

if your response hold the output of the stringbuilder after iterations then you can try below code

try{
            jArray = new JSONArray(response);
            for(int i=0;i<jArray.length();i++){
                    json_data = jArray.getJSONObject(i);
            }
}

NOTE:do not forget to declare jArray (object of JSONARRAY) and json_data (object of JSONOBJECT) at class level

Answer 3

I think, problem is on your JSON. JSON is not valid.

"id":1

it should be

"id":"1"

Please check.