日期的处理

wei801516 2012-03-20 03:24:54

获取当前日期，并且向前推一个星期
这个代码怎么写！~~~~~~~~~~~最好能写好给我。。。急用！~~~~~

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一天zijie一夜 2012-03-21

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[Quote=引用 2 楼 dntg007 的回复:]
Date date = new Date();
long time = date.getTime();
time = time - 1000 * 3600 * 24 * 7;
Date newDate = new Date(time);
[/Quote]
++

蜗牛都玩F1 2012-03-21

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综述：此方法最简练[Quote=引用 4 楼 dryzeng 的回复:]

Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.WEEK, -1);
Date d = calendar.getTime();
[/Quote]

TommyWu01 2012-03-21

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Date date = new Date();
long time = date.getTime();
time = time - 1000 * 3600 * 24 * 7;
Date newDate = new Date(time);

或者：
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.WEDNESDAY, -1);
Date d = calendar.getTime();
System.out.println(d.getDate());

licip 2012-03-21

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+1[Quote=引用 2 楼 dntg007 的回复:]
Date date = new Date();
long time = date.getTime();
time = time - 1000 * 3600 * 24 * 7;
Date newDate = new Date(time);
[/Quote]

cxw3152 2012-03-21

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下面是把日期向后推迟5分钟源码
function funcvalidate()
{

y = new Date().getFullYear();
m = new Date().getMonth();
d = new Date().getDate();
h = new Date().getHours();
mi = new Date().getMinutes();
m=m+1;
mi=mi-15 ;
//把系统时间向后推迟15分钟
if(mi<=0){
h=h-1 ;
if(h<0){
h=23;
d = d -1 ;
if(d<=0){
m = m - 1 ;
if(m<=0){
m=12 ;
y=y-1;
}
if(m == 1 || m==3 || m==5 ||m==7 || m==8 || m==10 || m==12){
d=31;
}else{
d=30;
}
if(y%4==0&&y%100!=0 || y%400==0){
if(m==2){
d=29;
}
}else{
if(m==2){
d=28;
}
}
}
}

mi=60+mi;
}else{
if(mi<10){
mi="0"+mi;
}
}

if(m<10){
m="0"+m;
}
if(h<10){
h="0"+h;
}
if(d<10){
d="0"+d ;
}
var dateString = y+"-"+m+"-"+d+" "+h+":"+mi ;

}

xieshengjun2009 2012-03-20

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[Quote=引用 4 楼 dryzeng 的回复:]

Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.WEEK, -1);
Date d = calendar.getTime();
[/Quote]+1

wangshan_ws 2012-03-20

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4楼正确

wei801516 2012-03-20

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我去试试

litingkb8 2012-03-20

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[Quote=引用 4 楼 dryzeng 的回复:]

Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.WEEK, -1);
Date d = calendar.getTime();
[/Quote]
最近做的项目中也用的这个方法

不关橙猫猫事的哦 2012-03-20

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Calendar c = Calendar.getInstance();
c.set(Calendar.DAY_OF_MONTH,c.get(Calendar.DAY_OF_MONTH) - 7);
Date date = c.getTime();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateStr = sdf.format(date);
System.out.println(dateStr);

dryZeng 2012-03-20

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Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.WEEK, 1);
Date d = calendar.getTime();

dryZeng 2012-03-20

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Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.WEEK, -1);
Date d = calendar.getTime();

dryZeng 2012-03-20

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calendar.add(Calendar.WEEK, -1);

dntg007 2012-03-20

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Date date = new Date();
long time = date.getTime();
time = time - 1000 * 3600 * 24 * 7;
Date newDate = new Date(time);

不关橙猫猫事的哦 2012-03-20

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Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
String dateStr = sdf.format(date);
System.out.println(dateStr);