关于日期转JSON

册噩噩 2020-09-08 10:01:53

日期直接转json



  @RequestMapping(value = "/json4",produces = "application/json;charset=utf-8")    //String 的转换格式 produces = "text/html;charset=utf-8"

    @ResponseBody

    public String json4 () throws JsonProcessingException {



        ObjectMapper mapper = new ObjectMapper();

        

        Date date = new Date();



        return mapper.writeValueAsString(date);

    }

配上展示图,可以看到返回的是一个时间戳,下面我们就来**

改进后:



@RequestMapping(value = "/json4",produces = "application/json;charset=utf-8")    //String 的转换格式 produces = "text/html;charset=utf-8"

    @ResponseBody

    public String json4 () throws JsonProcessingException {



        ObjectMapper mapper = new ObjectMapper();

        //为了不返回时间戳，所以我们选择关闭它

        mapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS,false);

        //自定义日期格式问题

        final SimpleDateFormat sdf = new SimpleDateFormat("YYYY-MM-DD HH:MM:SS");

        //设置mapper的指定的日期格式

        mapper.setDateFormat(sdf);



        Date date = new Date();



        return mapper.writeValueAsString(date);

    }