java 对json操作的备忘

//String /Map /Bean 转换成json ：

JsonObject jo=JsonObject.fromObject(string/map/bean);

//List 转json

JSONArray ja=JSONArray.fromObject(list);

//json 转成 bean

 JSONObject.toBean(jo, bean.Class)

//json 转换成list

JsonObject ja=JSONArray.fromObject(string);

JSONArray.toList(ja, object.Class);

//迭代Json

Iterator it=jo.keys();

while(it.hashNext()){

key=it.next();

       value=jo.getString(key);

}

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