java对象与json字符串转换

Date date = new Date();JSONObject dataJsonObj = JSONObject.fromObject(date);String dataJsonStr = dataJsonObj.toString();System.out.println(dataJsonStr);JSONObject jsonObj = JSONObject.fromObject(dataJsonStr);Date myDate = (Date) JSONObject.toBean(jsonObj, Date.class);System.out.println(myDate);DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.LONG);String myDateStr = dateFormat.format(myDate);System.out.println(myDateStr);