Ø 描述&＃xff1a; 封装了对一些对日期常见的操作方法。
Ø 类ID&＃xff1a; DateUtils
Ø 方法&＃xff1a;
| 方法名 | 描述 |
|
|
|
| getToday( ) | 得到当前日期字符串 |
| On Entry: |
|
| On Exit: | return 当前日期 按"yyyy-MM-dd"格式获取 |
| format(Date) | 将日期型转换为字符型.转换后的日期格式为yyyy-MM-dd |
| On Entry: | Date: 如: Tue Jan 01 00:09:00 CST 2002
|
| On Exit: | return String 返回字符型日期 |
| getTime&＃xff08;&＃xff09; | 获得当前时间.显示格式如&＃xff1a;2008-07-18 10:21:41 |
| On Entry: |
|
| On Exit: | return String返回当前时间字符串 |
| getTimeNoSeparate( ) | 获得当前时间.显示格式如&＃xff1a;20080826102109一般用于作为新建文件夹或者文件名的一部分 |
| On Entry: |
|
| On Exit: | return String返回当前时间字符串 |
| getNow&＃xff08;&＃xff09; | 得到当前日期,格式如:20080825 |
| On Entry: |
|
| On Exit: | return String返回当前日期字符串 |
| format&＃xff08;String&＃xff09; | 将字符串转换成Date型如:2008-08-25 to Wed Aug 24 00:00:00 CST 2005 |
| On Entry: |
|
| On Exit: | return Date返回Date型日期. |
Ø 代码&＃xff1a;
Code
public class DateUtils
{
public DateUtils()
{
}
public static DateUtils getInstance()
{
return dateUtils;
}
public String format(Date date)
{
String format &＃61; "yyyy-MM-dd";
SimpleDateFormat fmt &＃61; new SimpleDateFormat(format);
return fmt.format(date);
}
private String format(Date date, String format)
{
SimpleDateFormat fmt &＃61; new SimpleDateFormat(format);
return fmt.format(date);
}
private Date parse(String date, String format)
throws ParseException
{
SimpleDateFormat fmt &＃61; new SimpleDateFormat(format);
return fmt.parse(date);
}
public String getToday()
{
String result &＃61; "";
Date date &＃61; new Date();
result &＃61; format(date);
return result;
}
public String getTime()
{
String result &＃61; "";
Date date &＃61; new Date();
result &＃61; format(date, "yyyy-MM-dd HH:mm:ss");
return result;
}
public String getTimeNoSeparate()
{
String result &＃61; "";
Date date &＃61; new Date();
result &＃61; format(date, "yyyyMMddHHmmss");
return result;
}
public String getNow()
{
String result &＃61; "";
Date date &＃61; new Date();
Calendar.getInstance(Locale.getDefault());
int year &＃61; 1;
Calendar.getInstance(Locale.getDefault());
int month &＃61; 2;
Calendar.getInstance(Locale.getDefault());
int day &＃61; 5;
Calendar.getInstance(Locale.getDefault());
int week &＃61; 7;
result &＃61; format(date, "yyyyMMdd");
return result;
}
public Date format(String str)
{
Date result &＃61; null;
try
{
str &＃61; str &＃43; " ";
int endStr &＃61; str.indexOf(" ");
String dateString &＃61; str.substring(0, endStr);
result &＃61; parse(dateString, "yyyy-MM-dd");
}
catch(Exception ex) { }
return result;
}
private static final DateUtils dateUtils &＃61; new DateUtils();
}
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