JSON(对象数组，HashMap)

//跟对象有关用对象数组传，跟对象无关用HashMap

ImplOrderDao orderDao=newImplOrderDao();try {orderDao.insertOrder(order);HashMap<String,String> map=new HashMap<>();map.put("status","success");map.put("orderid",order.getId());map.put("totalprice",totalprice);Stringjson=JSONObject.fromObject(map).toString();response.getWriter().write(json);} catch(SQLException e) {//TODO Auto-generated catch blocke.printStackTrace();}

对象数组

                          

Parameter[] parArr = new Parameter[list.size()-1];        for(int i = 0; i < list.size(); i++) {Parameterparameter = list.get(i);System.out.println(parameter);Dateformat = dateFormat.parse(parameter.getInsertTime());Stringtime = dateFormat.format(format);// format函数是把日期转换成字符串parameter.setInsertTime(time);System.out.println(parameter);parArr[i]= parameter;}Stringjson = JSONArray.fromObject(parameter).toString();response.getWriter().write(json);