Some Json utilities that I use for every project.Uses Jackson library.

JsonUtils.java

import java.io.IOException;

import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;

public class JsonUtils {
	private static final ObjectMapper objMapper = new ObjectMapper();

	public static <T> T toObject(final String json , final Class<T> clazz) throws Exception{
		return objMapper.readValue(json,clazz);
	} 
	public static String toJson(final Object object) throws JsonProcessingException{
		return objMapper.writerWithDefaultPrettyPrinter().writeValueAsString(object);
	}

	
}