Tags: JSON

Lately I was working on web services of different websites. All of them gives response in either JSONObject or JSONArray. Reading JSON in eclipse console is pretty hard so searched over internet and found library called jackson-all.

Download library: http://www.java2s.com/Code/Jar/j/Downloadjacksonall190jar.htm

Source code

import java.io.IOException;
import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.map.ObjectWriter;

/**
 * Example of formating raw JSON
 * @author Vicky Thakor
 */
public class PrettifyJSONExample {
    public static void main(String[] args) {
        try {
            String json = "{\"candidate\" : \"Vicky Thakor\", \"expertise\" : [\"Core Java\", \"J2EE\", \"Design Pattern\"]}";
            System.out.println("Unformatter json:" + json);
            /* Create required objects */
            ObjectMapper objectMapper = new ObjectMapper();
            Object object = objectMapper.readValue(json, Object.class);
            ObjectWriter objectWriter = objectMapper.writer().withDefaultPrettyPrinter();
            /* Get the formatted json */
            String formattedJSON = objectWriter.writeValueAsString(object);
            System.out.println("Formatter json:\n"+formattedJSON);
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }
}

Output

Unformatter json:{"candidate" : "Vicky Thakor", "expertise" : ["Core Java", "J2EE", "Design Pattern"]}
Formatter json:
{
  "candidate" : "Vicky Thakor",
  "expertise" : [ "Core Java", "J2EE", "Design Pattern" ]
}

Tags: JSON