package com.fh.interview;import java.text.SimpleDateFormat;import java.util.Date;import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;/** * @author * @create 2018-06-03 上午11:15 **/public class ThreadLocalDemo {    private static ThreadLocal
     
       sdf = new ThreadLocal
      
       ();    public static void main(String[] args) {        ExecutorService executorService = Executors.newFixedThreadPool(10);        for (int i=0;i<100;i++){            executorService.submit(new DateUtils("2019-11-25 09:00:" + i % 60));        }    }    static class DateUtils implements Runnable{        private String date;        private DateUtils(String date){            this.date = date;        }        @Override        public void run() {            if(sdf.get() == null){                sdf.set(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));            }else {                SimpleDateFormat simpleDateFormat = sdf.get();                try {                    Date dates = simpleDateFormat.parse(date);                    System.out.println(dates);                } catch (Exception e) {                    e.printStackTrace();                }            }        }    }}