import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
String str = "{FYXID:4C4600835174411190C739805DE593BC,ZFY:0,FYXMC:保安保洁费}";
JSONObject jsonObject = new JSONObject(str);
Iterator it = jsonObject.keys();
while(it.hasNext()){
String key = (String) it.next();// 获得key
String value = jsonObject.getString(key);// 获得value
System.out.println("[key="+key+" val="+value+"]");
}