复杂json转MAP对象

public class JsonUtils {

 /** 
	  *<p>类描述：复杂json字符串转换为Map，包含数组时value为List。</p>
	 */
	public static Map json2Map(String json) {  
		LinkedMap map = new LinkedMap();  
		JSONObject js = JSONObject.fromObject(json);  
		populate(js, map);  
		return map;  
	}  

	/**
	  *<p>类描述：json中的键值对解析成map。</p>
	 */
	private static Map populate(JSONObject jsonObject, Map map) { 
		for (Iterator iterator = jsonObject.entrySet().iterator(); iterator  
				.hasNext();) {  
			String entryStr = String.valueOf(iterator.next());  
			String key = entryStr.substring(0, entryStr.indexOf("="));  
			String value = entryStr.substring(entryStr.indexOf("=") + 1,  
					entryStr.length());  
			if (jsonObject.get(key).getClass().equals(JSONObject.class)) {  
				HashMap _map = new HashMap();  
				map.put(key, _map);  
				populate(jsonObject.getJSONObject(key), ((Map) (_map)));  
			} else if (jsonObject.get(key).getClass().equals(JSONArray.class)) {  
				ArrayList list = new ArrayList();  
				map.put(key, list);  
				populateArray(jsonObject.getJSONArray(key), list);  
			} else {  
				map.put(key, jsonObject.get(key));  
			}  
		}  

		return map;  
	}  

	/**
	  *<p>类描述：如果是键对应数组,则返回一个list到上级的map里。</p>
	 */
	private static void populateArray(JSONArray jsonArray, List list) {  
		for (int i = 0; i < jsonArray.size(); i++)  
			if (jsonArray.get(i).getClass().equals(JSONArray.class)) {  
				ArrayList _list = new ArrayList();  
				list.add(_list);  
				populateArray(jsonArray.getJSONArray(i), _list);  
			} else if (jsonArray.get(i).getClass().equals(JSONObject.class)) {  
				HashMap _map = new HashMap();  
				list.add(_map);  
				populate(jsonArray.getJSONObject(i), _map);  
			} else {  
				list.add(jsonArray.get(i));  
			}  
	} 

}