READ JSON String in servlet

Question

I am posting a jQuery AJAX POST to a servlet and the data is in the form of JSON String. Its getting posted successfully but on the Servlet side I need to read these key-val

Answer 1

So here goes my example. I used json.JSONTokener to tokenize my String. ( Json-Java API from here https://github.com/douglascrockford/JSON-java )

String sJsonString = "{\"name\":\"abc\",\"age\":\"21\"}";
// Using JSONTokener to tokenize the String. This will create json Object or json Array 
// depending on the type cast.
json.JSONObject jsonObject = (json.JSONObject) new json.JSONTokener(sJsonString).nextValue();

Iterator iterKey = jsonObject.keys(); // create the iterator for the json object.
while(iterKey.hasNext()) {
    String jsonKey = (String)iterKey.next(); //retrieve every key ex: name, age
    String jsonValue = jsonObject.getString(jsonKey); //use key to retrieve value from 

    //This is a json object and will display the key value pair.

    System.out.println(jsonKey  + " --> " + jsonValue  );
}

Output:
age-->21
name-->abc