在jsp页面中获取系统当前时间

JSP页面获取系统当前时间

1:

import java.util.*;

int y,m,d,h,mm;

Calendar c = Calendar.getInstance();

y = c.get(Calendar.YEAR); //年

m = c.get(Calendar.MONTH) + 1; //月

d = c.get(Calendar.DAY_OF_MONTH); //日

h = c.get(Calendar.HOUR); //时（HOUR——十二小时制；HOUR_OF_DAY——二十四小时制）

mm = c.get(Calendar.MINUTE); //分

2:

java.util.Date d = new java.util.Date();

java.text.SimpleDateFormat dformat = new

java.text.SimpleDateFormat(\"yyyy-MM-dd\");

String datetime = dformat.format(d);

System.out.println(datetime);

3:

import java.util.*;

import java.text.*;

Date now = new Date();

DateFormat defaultFormat = DateFormat.getDateInstance();

DateFormat shortFormat = DateFormat.getDateInstance(DateFormat.SHORT);

DateFormat mediumFormat =

DateFormat.getDateInstance(DateFormat.MEDIUM);

DateFormat longFormat = DateFormat.getDateInstance(DateFormat.LONG);

DateFormat fullFormat = DateFormat.getDateInstance(DateFormat.FULL);

String defaultDate = defaultFormat.format(now);

String shortDate = shortFormat.format(now);

String mediumDate = mediumFormat.format(now);

String longDate = longFormat.format(now);

String fullDate = fullFormat.format(now);

System.out.println(\"(Default) Today :\" + defaultDate);

System.out.println(\"(SHORT) Today : \" + shortDate);

System.out.println(\"(MEDIUM) Today :\" + mediumDate);

System.out.println(\"(LONG) Today : \" + longDate);

System.out.println(\"(FULL) Today : \" + fullDate);

4.

<%

java.util.Date now=new java.util.Date();

out.println(now);

%>

如果只要年月日,可以用subString()截取.

或者用这个 String time=new SimpleDateFormat(\"yyyy-MM-

dd\").format(Calendar.getInstance().getTime);

5.

Date currentTime = new Date();

SimpleDateFormat formatter = new SimpleDateFormat(\"yyyy-MM-dd\");

String dateString = formatter.format(currentTime);

dataString 的格式就是2007-03-08这类型