i get myjson string use the mothed Graphic.toJson(graphic) and it's about this {"attributes":{"id":1,"name":"aa"},"geometry":{"x":121.14829488816405,"y":31.278801530446056,"spatialReference":{"wkid":4326}}} but when i use the method Graphic.fromJson(parser), they return null; he is the code : JsonFactory localJsonFactory = new MappingJsonFactory(); String graphicStr ="{\"attributes\":{\"id\":1,\"name\":\"aa\"},\"geometry\":{\"x\":121.14829488816405,\"y\":31.278801530446056,\"spatialReference\":{\"wkid\":4326}}}"; JsonParser parser = localJsonFactory.createJsonParser(graphicStr); Graphic g = Graphic.fromJson(parser); parser.close(); graphicsLayer.addGraphic(g); when debug g is null.
... View more