Reading JSON with Jackson in Java

Jackson is a powerful JSON processing library in Java. Use it to parse, generate, and transform JSON.

Source Code

// Assuming you have a Jackson library added to your project
ObjectMapper mapper = new ObjectMapper();
String jsonInput = "{"name":"John","age":30}";
try {
    Map personMap = mapper.readValue(jsonInput, new TypeReference<Map>(){});
    System.out.println(personMap);
} catch (IOException e) {
    e.printStackTrace();
}