<dependency> <groupId>com.mashape.unirest</groupId> <artifactId>unirest-java</artifactId> <version>1.4.9</version> </dependency> import com.fasterxml.jackson.databind.ObjectMapper; import com.mashape.unirest.http.ObjectMapper; String jsonData = objectMapper.writeValueAsString(yourObject); import com.fasterxml.jackson.databind.ObjectMapper; import com.mashape.unirest.http.ObjectMapper; YourObject yourObject = objectMapper.readValue(jsonData, YourObject.class); import com.mashape.unirest.http.Unirest; Unirest.setDefaultHeader("Accept", "application/json"); Unirest.setDefaultHeader("Content-Type", "application/json");