CODEWITHSUNDEEP
javajson
Jerry
Jerry

Reputation: 39

java.lang.ClassCastException: java.lang.String cannot be cast to org.json.JSONObject

I hit the API, I get the response as 

{"headers":{"Keep-Alive":["timeout=4, max=500"],"Server":["Apache"],"X-Content-Type-Options":["nosniff"],"Connection":["Keep-Alive"],"Vary":["X-Forwarded-For"],"X-XSS-Protection":["1;mode=block"],"Content-Length":["451"],"Content-Type":["application/hal+json"]},"statusCodeValue":200,"body":"{\"id\":\"7199\",\"username\":\"[email protected]\",\"start_time\":1583212261,\"expire_time\":1583253338,\"sponsor_profile\":\"1\",\"enabled\":false,\"current_state\":\"disabled\",\"notes\":null,\"visitor_carrier\":null,\"role_name\":\"[Guest]\",\"role_id\":2,}

Then I try to fetch the body.I get till body but I m not able to fetch username under body.Basically my main aim is to get the username.It throws this error 

java.lang.ClassCastException: java.lang.String cannot be cast to org.json.JSONObject

Logic that I tried to get username.

ResponseEntity<String> resp = restTemplate.exchange(
                            reader.getAccountURL() + request.getUsername(),
                            HttpMethod.GET, entity, String.class);
JSONObject accountDetails = new JSONObject(resp);
Object getBody =  accountDetails.get("body");
Object alreadyExits = ((JSONObject) getBody).get("username");

What m I doing wrong?

Upvotes: 0

Views: 5099

Answers (2)

mudit
mudit

Reputation: 28

JSONObject is nothing but a map which works on key-value. If the value returned by a key is map(i.e. key-value pairs) then it can be cast into a JSONObject, but in your case getBody.get("username") returns [email protected] which is a simple string and not a key-value pair hence you get this exception Use: JSONObject getBody = accountDetails.getJsonObject("body") or you can use: 

String bodyString= accountDetails.getString("body");
JSONObject getBody= new JSONObject(bodyString)

and then use Object alreadyExits = ((String) getBody).get("username"); and it should work just fine.

Upvotes: 0

user404
user404

Reputation: 2028

follow the steps:

  1. get body string: String bodyString= resp.getString("body");
  2. parse bodyString to jsonObject: JSONObject body= new JSONObject(bodyString);
  3. get the username: String usename= body.getString("username");

This should work.

Upvotes: 2

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