java如果使用DateTimeFormatter格式化Jun 15 16:52:22类型的时间,因为涉及到多线程问题,担心用SimpleDateFormat会出错
private static final ThreadLocal<DateFormat> sdf = new ThreadLocal<DateFormat>(){ @override protected DateFormat initialValue() { return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); } }
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