Question

如何通过得到json数据动态生成bean

Answer 1

以下是我整合的方法
/**
* 从Json数据中获取相应的List
* Json格式：{"":[{},{},{}....],"":[{},{},{}....]}
* @param jsonString
* @param pojoClass
* @param keyClass
* @return
*/
public static List getListFromJson(String jsonString, Class pojoClass ,String keyClass){
JSONObject jsonObj = JSONObject.fromObject(jsonString);
JSONArray arrayObject=jsonObj.getJSONArray(keyClass);
JSONArray jsonArray = JSONArray.fromObject(arrayObject.toString());
JSONObject jsonObject;
Object pojoValue;
List list = new ArrayList();
for ( int i = 0 ; i< jsonArray.size();i++){
jsonObject = jsonArray.getJSONObject(i);
pojoValue = JSONObject.toBean(jsonObject,pojoClass);
list.add(pojoValue);
}
return list;
}
/**
* 从一个JSON数组得到一个java对象集合
* @param object
* @param clazz
* @return
*/
public static List getDTOList(String jsonString, Class clazz){
JSONArray array = JSONArray.fromObject(jsonString);
List list = new ArrayList();
for(Iterator iter = array.iterator(); iter.hasNext();){
JSONObject jsonObject = (JSONObject)iter.next();
list.add(JSONObject.toBean(jsonObject, clazz));
}
return list;
}