Java中Date日期字符串格式的各种转换

public class DateParserT {  
        /**
         * Date 与  String、long 的相互转换
         * @param args
         */  
        public static void main(String[] args) {  
              
            Date dt =new Date();  
            System.out.println(dt); //格式: Wed Jul 06 09:28:19 CST 2016  
              
            //格式:2016-7-6  
            String formatDate = null;  
            formatDate = DateFormat.getDateInstance().format(dt);  
            System.out.println(formatDate);    
              
            //格式:2016年7月6日 星期三  
            formatDate = DateFormat.getDateInstance(DateFormat.FULL).format(dt);  
            System.out.println(formatDate);  
              
            //格式 24小时制:2016-07-06 09:39:58  
            DateFormat dFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); //HH表示24小时制;  
            formatDate = dFormat.format(dt);  
            System.out.println(formatDate);  
              
            //格式12小时制:2016-07-06 09:42:44  
            DateFormat dFormat12 = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss"); //hh表示12小时制;  
            formatDate = dFormat12.format(dt);  
            System.out.println(formatDate);  
              
            //格式去掉分隔符24小时制:20160706094533  
            DateFormat dFormat3 = new SimpleDateFormat("yyyyMMddHHmmss");  
            formatDate = dFormat3.format(dt);  
            System.out.println(formatDate);  
              
            //格式转成long型:1467770970  
            long lTime = dt.getTime() / ;  
            System.out.println(lTime);  
              
            //格式long型转成Date型,再转成String:  1464710394 -> ltime2*1000 -> 2016-05-31 23:59:54  
            long ltime2 = ;  
            SimpleDateFormat lsdFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");  
            Date lDate = new Date(ltime2*);  
            String lStrDate = lsdFormat.format(lDate);  
            System.out.println(lStrDate);  
              
            //格式String型转成Date型:2016-07-06 10:17:48 -> Wed Jul 06 10:17:48 CST 2016  
            String strDate = "2016-07-06 10:17:48";  
            SimpleDateFormat lsdStrFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");  
            try {  
                Date strD = lsdStrFormat.parse(strDate);  
                System.out.println(strD);  
            } catch (ParseException e) {  
                e.printStackTrace();  
            }  
        }  
    }
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