Map<String,Object> requestMap= new HashMap<String,Object>();
requestMap.put("name", "zhangsan");
requestMap.put("nameList", nameList);
//net.sf.json.JSONObject 将Map转换为JSON方法(包一定要导对)
JSONObject json = JSONObject.fromObject(requestMap);
//org.json.JSONObject 将Map转换为JSON方法(包一定要导对)
JSONObject json =new JSONObject(requestMap);