fastjson过滤字段属性

//第一种方法:

 

PropertyFilter filter = new PropertyFilter() {

            //过滤不需要的字段

            public boolean apply(Object source, String name, Object value) {

                if("code".equals(name)||"shengid".equals(name)){

                    return false;

                }

                return true;

            }

        };

        SerializeWriter sw = new SerializeWriter();

        JSONSerializer serializer = new JSONSerializer(sw);

        serializer.getPropertyFilters().add(filter);

        serializer.write(cityList);

        response.getWriter().write(sw.toString());

//第二种方法:

直接在里面写上需要的字段属性.

    SimplePropertyPreFilter filter = new SimplePropertyPreFilter(TTown.class, "id","townname");

        response.getWriter().write(JSONObject.toJSONString(townList,filter));