CODEWITHSUNDEEP
java
Psl
Psl

Reputation: 3920

Not able to parse Json String to get the key value using JSON

I have a json response string like this

string result ={"username": "sdrG", "size": 965204,  "filename": "test.doc"}

From this am trying to get the size value

for that am using JSON object to convert JSON string get the key values

JSONObject jObject  = new JSONObject(result); // json
String size = (String) jObject.get("size");
System.out.println(size);

But his code is not working for me getting 

org.json.JSONException: JSONObject["size"] not found.

Upvotes: 1

Views: 550

Answers (2)

Amit Bhati
Amit Bhati

Reputation: 5649

After a little modification, your code worked for me:-

public static void main(String[] args) throws DatatypeConfigurationException {
    String result ="{\"username\": \"sdrG\", \"size\": 965204,  \"filename\": \"test.doc\"}";
     JSONObject jObject  = new JSONObject(result); // json
        String size = String.valueOf((Integer) jObject.get("size"));
        System.out.println(size);
}

Used :-

<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20140107</version>
</dependency>

In case your Json is stored in StringBuffer, you can do:- 

JSONObject jObject  = new JSONObject(result.toString());

Upvotes: 2

Optional
Optional

Reputation: 4507

 JSONParser parser=new JSONParser();
 JSONObject jObject  = (JSONObject)parser.parse(result);
 String size = (String) jObject.get("size");
 System.out.println(size);

Upvotes: 0

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