* 출처:http://stackoverflow.com/questions/4486787/jackson-with-json-unrecognized-field-not-marked-as-ignorable

import org.codehaus.jackson.map.ObjectMapper;


public class TestObjectmapper implements SubJobRunner { 


public static void main(String[] args) {

//    String jsonStr = "{\"wrapper\"\:[{\"id\":\"13\",\"name\":\"Fred\"}]}";

   String jsonStr = "{}";

   ObjectMapper mapper = new ObjectMapper();  

   Wrapper wrapper = null;

   try {

       wrapper =         mapper.readValue(jsonStr , Wrapper.class);

   } catch (Exception e) {

       e.printStackTrace();

   }

   System.out.println("111111111111111");

   System.out.println("wrapper = " + wrapper);

   System.out.println("222222222222222222");

}

public class Student { 

   private String name;

   private String id;

   //getters & setters for name & id here

}

public class Wrapper {

   private List<Student> students;

   //getters & setters here

}

}