Jackson JSON conversion bean, no corresponding value in the Bean Jackson unrecognized FIELD__JS

I use the Jackson for converting JSON to Object class.

Json:

{"AAA": "A", "BBB": "222", "CCC": "333"}

Object Class:

Class test{public
    String AAA;
    Public String BBB;

Code:

Objectmapper mapper = new Objectmapper ();
Object obj = mapper.readvalue (content, valuetype);

My code throws exception like That:org.codehaus.jackson.map.exc.UnrecognizedPropertyException:Unrecognized field " CCCC "(Class com.isoftstone.banggo.net.result.GetGoodsInfoResult), not marked as ignorable

and I don ' t want to add a prop to class Test,i just want Jackson convert the exist value Whith was also exist in Test.

Jackson provides a few different mechanisms to configure handling of "extra" JSON elements. Following is a example of configuring the Objectmapper to not fail_on_unknown_properties.

Import org.codehaus.jackson.annotate.JsonAutoDetect.Visibility;
Import Org.codehaus.jackson.annotate.JsonMethod;
Import Org.codehaus.jackson.map.DeserializationConfig;
Import Org.codehaus.jackson.map.ObjectMapper;

public class Jacksonfoo
{public
  static void Main (string[] args) throws Exception
  {
    //{"AAA": "", "BB B ":" "222", "CCC": "333"}
    String jsoninput = "{\ aaa\": \ "111\", \ "bbb\": \ "222\", "ccc\": \ "333\"} ";

    Objectmapper mapper = new Objectmapper (). Setvisibility (Jsonmethod.field, visibility.any);
    Mapper.configure (DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false);

    Test test = Mapper.readvalue (Jsoninput, Test.class);
  }
}

Class Test
{
  String aaa;
  String BBB;

For the other approaches, Http://wiki.fasterxml.com/JacksonHowToIgnoreUnknown