error in parsing JSON in java

Question

I have a response from API that generates authorization token with some other attributes, I'm trying to extract the value of the token from the response which looks like below

 {"access_token":"tokenvalue","scope":"somevalue","token_type":"Bearer","expires_in":value}

i tried JSON parse like below:

 Myclass response = template.postForObject(url, requestEntity,  Myclas.class);
            JSONParser jsonParser = new JSONParser();
        JSONObject obj = (JSONObject) jsonParser.parse(response);
        String product = (String) jsonObject.get("access_token");
            token = response;
        }

Recieved error:

parse( ) 
in JSONParser cannot be applied
to
(java.lang.String)

The json response is an invalid json. did u mask the expires_in or that's how is it? — Karthik R
– Karthik R, Commented May 7, 2018 at 14:37
check this link examples.javacodegeeks.com/core-java/json/… — krezus
– krezus, Commented May 7, 2018 at 14:49
@KarthikR this is the response: {"access_token":"tokenvalue","scope":"somevalue","token_type":"Bearer","expires_in":1235} — Nico Levi
– Nico Levi, Commented May 7, 2018 at 15:11

bhspencer · Accepted Answer · 2018-05-07 14:58:58Z

1

With the line:

String product = (String) jsonObject.get("access_token");

You are trying to get a property called "access_token".

However if you look at your json you will see that there is no property called "access_token".

Perhaps you meant:

String product = (String) jsonObject.get("token");

answered May 7, 2018 at 14:58

bhspencer

13.7k5 gold badges38 silver badges44 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

helloworld · Accepted Answer · 2018-05-07 14:54:02Z

0

Like said by Neng Liu before me, this JSON could be incorrect:

{"token":"tokenvalue","scope":"somevalue","token_type":"Bearer","expires_in": value }

Another thing is that JSONObject can receive the JSON format in its constructor JSONObject obj = new JSONObject(response) in your case and then use obj.get("your filed")

answered May 7, 2018 at 14:54

helloworld

591 silver badge9 bronze badges

4 Comments

Nico Levi Over a year ago

JSONObject json = (JSONObject)new JSONParser().parse("{\"access_token\":\"token\", \"scope\":value, \"token_type\":Bearer, \"expires_in\":97822}"); System.out.println("access_token=" + json.get("access_token")); Got this error: JSONParser() in JSONParser cannot be applied to:....i'm using jdk.nashorn

helloworld Over a year ago

Sorry, but scope variable is a string?

Nico Levi Over a year ago

@hellomluca, yes it's a string :)

helloworld Over a year ago

So this json file is uncorrect. It must be like this: "{\"access_token\":\"token\", \"scope\": " value " , \"token_type\":Bearer, \"expires_in\":97822}"

Collectives™ on Stack Overflow

error in parsing JSON in java

2 Answers 2

Comments

4 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

4 Comments

Your Answer

Sign up or log in

Post as a guest

Related