package logic.test;
import java.text.SimpleDateFormat;
import java.util.Date;
public class TestTimeStamp {
/**
* 时间戳转换成日期格式字符串
* @param seconds 精确到秒的字符串
* @param formatStr
* @return
*/
public static String timeStamp2Date(String seconds,String format) {
if(seconds == null || seconds.isEmpty() || seconds.equals("null")){
return "";
}
if(format == null || format.isEmpty()) format = "yyyy年MM月dd日 HH:mm:ss";
SimpleDateFormat sdf = new SimpleDateFormat(format);
return sdf.format(new Date(Long.valueOf(seconds+"000")));
}
/**
* 日期格式字符串转换成时间戳
* @param date 字符串日期
* @param format 如：yyyy-MM-dd HH:mm:ss
* @return
*/
public static String date2TimeStamp(String date_str,String format){
try {
SimpleDateFormat sdf = new SimpleDateFormat(format);
return String.valueOf(sdf.parse(date_str).getTime()/1000);
} catch (Exception e) {
e.printStackTrace();
}
return "";
}
/**
* 取得当前时间戳(精确到秒)
* @return
*/
public static String timeStamp(){
long time = System.currentTimeMillis();
String t = String.valueOf(time/1000);
return t;
}
// 输出结果：
//timeStamp=1467101904
//date=06月28日 16:18:24
//1467101904
public static void main(String[] args) {
String timeStamp = timeStamp();
System.out.println("timeStamp="+timeStamp);
String date = timeStamp2Date(timeStamp, "yyyy年MM月dd日 HH:mm:ss");
System.out.println("date="+date);
String timeStamp2 = date2TimeStamp(date, "yyyy年MM月dd日 HH:mm:ss");
System.out.println(timeStamp2);
}
}
