jfinal 动态获取前端数据

public JSONObject getParasMap(Controller ctl) {
JSONObject paraJson=new JSONObject();
Enumeration<String> names = ctl.getParaNames();
/*普通方式收集参数*/
while(names.hasMoreElements()){
String key = names.nextElement();
String vals[]= ctl.getParaValues(key);
if(vals.length>1){
JSONArray list=new JSONArray();
for(int i=0;i<vals.length;i++){
list.add(vals[i]);
}
paraJson.put(key,list);
}else{
paraJson.put(key,vals[0]);
}
}
return paraJson;
}