Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package utils; import com.fasterxml.jackson.annotation.JsonInclude; import com.fasterxml.jackson.databind.ObjectMapper; import java.io.IOException; import java.nio.charset.Charset; import org.springframework.http.MediaType; public class TestObjectConverter { public static final MediaType APPLICATION_JSON_UTF8 = new MediaType(MediaType.APPLICATION_JSON.getType(), MediaType.APPLICATION_JSON.getSubtype(), Charset.forName("utf8")); public static byte[] convertObjectToJsonBytes(Object object) throws IOException { ObjectMapper mapper = new ObjectMapper(); mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL); return mapper.writeValueAsBytes(object); } public static String createStringWithLength(int length) { StringBuilder builder = new StringBuilder(); for (int index = 0; index < length; index++) { builder.append("a"); } return builder.toString(); } }