Enable JSON Pretty Print in Java Jackson


Enable Json Pretty Print using Java Jackson

To enable pretty print in Java Jackson for JSON String make use of the enable() method with SerializationFeature.INDENT_OUTPUT as an argument.

Example:
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;

import java.io.IOException;

public class EnumToJsonJackson {

    public static void main(String[] args) throws IOException {

        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.enable(SerializationFeature.INDENT_OUTPUT);
        Employee employee = new Employee("Sam",29,"Insurance");
        String employeeJson = objectMapper.writeValueAsString(employee);
        System.out.println(employeeJson);
    }
}
Output:
{
  "empName" : "Sam",
  "empAge" : 29,
  "empDept" : "Insurance"
}


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