获取当前日期，星期，时间戳转换为时间，时间转换为时间戳

public class DataString {
   private static String mYear;
   private static String mMonth;
   private static String mDay;
   private static String mWay;

   public static String StringData(){
      final Calendar c = Calendar.getInstance();
      c.setTimeZone(TimeZone.getTimeZone("GMT+8:00"));
      mYear = String.valueOf(c.get(Calendar.YEAR)); // 获取当前年份  
      mMonth = String.valueOf(c.get(Calendar.MONTH) + 1);// 获取当前月份  
      mDay = String.valueOf(c.get(Calendar.DAY_OF_MONTH));// 获取当前月份的日期号码  
      mWay = String.valueOf(c.get(Calendar.DAY_OF_WEEK));
      if("1".equals(mWay)){
         mWay ="天";
      }else if("2".equals(mWay)){
         mWay ="一";
      }else if("3".equals(mWay)){
         mWay ="二";
      }else if("4".equals(mWay)){
         mWay ="三";
      }else if("5".equals(mWay)){
         mWay ="四";
      }else if("6".equals(mWay)){
         mWay ="五";
      }else if("7".equals(mWay)){
         mWay ="六";
      }
      return mYear + "年" + mMonth + "月" + mDay+"日"+"/星期"+mWay;  }        }

 

// 将时间戳转为字符串
public static String getStrTime(String cc_time) {
    String re_StrTime = null;

    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd", Locale.getDefault());
    // 例如：cc_time=1291778220
    long lcc_time = Long.valueOf(cc_time);
    re_StrTime = sdf.format(lcc_time);

    return re_StrTime;
}
// 将字符串转为时间戳
public static String getTime(String user_time) {
    String re_time = null;
    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
    Date d;
    try {
        d = sdf.parse(user_time);
        long l = d.getTime();
        String str = String.valueOf(l);
        re_time = str.substring(0, 10);
    } catch (ParseException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return re_time;
}