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I'm trying to create a Kafka consumer in intellij but when I try to create the JsonParser it throws me an error :

JsonParser is abstract; cannot be instantiated 0

private static JsonParser jsonParser = new JsonParser(); private static String extractIdFromTweet(String tweetJson){ return jsonParser.parse(tweetJson) .getAsJsonObject() .get("id_str") .getAsString(); }

I have tried:

  1. gson maven dependency
  2. org.json.simple.JSONObject
  3. org.json.JSONObject

but the error still persist.

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1 Answer 1

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You need to create JsonParser using factory methods:

The following example demonstrates how to create a parser from a string that contains an empty JSON array:

JsonParser parser = Json.createParser(new StringReader("[]"));

The class JsonParserFactory also contains methods to create JsonParser instances. JsonParserFactory is preferred when creating multiple parser instances. A sample usage is shown in the following example:

JsonParserFactory factory = Json.createParserFactory(); JsonParser parser1 = factory.createParser(...);
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