Java에서 객체를 맵으로 변환하는 방법 - BeanMap을 사용하여

/** * 将对象装换为map * @param bean * @return */ public static Map beanToMap(T bean) { Map map = Maps.newHashMap(); if (bean != null) { BeanMap beanMap = BeanMap.create(bean); for (Object key : beanMap.keySet()) { map.put(key+"", beanMap.get(key)); } } return map; } /** * 将map装换为javabean对象 * @param map * @param bean * @return */ public static T mapToBean(Map map,T bean) { BeanMap beanMap = BeanMap.create(bean); beanMap.putAll(map); return bean; } /** * 将List转换为List> * @param objList * @return * @throws JsonGenerationException * @throws JsonMappingException * @throws IOException */ public static List> objectsToMaps(List objList) { List> list = Lists.newArrayList(); if (objList != null && objList.size() > 0) { Map map = null; T bean = null; for (int i = 0,size = objList.size(); i < size; i++) { bean = objList.get(i); map = beanToMap(bean); list.add(map); } } return list; } /** * 将List>转换为List * @param maps * @param clazz * @return * @throws InstantiationException * @throws IllegalAccessException */ public static List mapsToObjects(List> maps,Class clazz) throws InstantiationException, IllegalAccessException { List list = Lists.newArrayList(); if (maps != null && maps.size() > 0) { Map map = null; T bean = null; for (int i = 0,size = maps.size(); i < size; i++) { map = maps.get(i); bean = clazz.newInstance(); mapToBean(map, bean); list.add(bean); } } return list; }