日期公用处理类代码,Java代码库,德仔网

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【Java】日期公用处理类
作者: / 发布于2011/1/14/ 342
<div><span style="color: #0000ff">package</span><span style="color: #000000"> com.sipgl.eam.utils;

</span><span style="color: #0000ff">import</span><span style="color: #000000"> java.text.SimpleDateFormat;
</span><span style="color: #0000ff">import</span><span style="color: #000000"> java.util.ArrayList;
</span><span style="color: #0000ff">import</span><span style="color: #000000"> java.util.Calendar;
</span><span style="color: #0000ff">import</span><span style="color: #000000"> java.util.Date;
</span><span style="color: #0000ff">import</span><span style="color: #000000"> java.util.GregorianCalendar;
</span><span style="color: #0000ff">import</span><span style="color: #000000"> java.util.LinkedHashMap;

</span><span style="color: #008000">/**</span><span style="color: #008000">
* 日期公用处理类
* 
* </span><span style="color: #808080">@author</span><span style="color: #008000"> SongJun
* </span><span style="color: #808080">@version</span><span style="color: #008000"> 1.3
</span><span style="color: #008000">*/</span><span style="color: #000000">
</span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">class</span><span style="color: #000000"> DateUtil {
 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * 解析一个日期之间的所有月份
 * 
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> beginDateStr
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> endDateStr
 * </span><span style="color: #808080">@return</span><span style="color: #008000">
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> ArrayList getMonthList(String beginDateStr, String endDateStr) {
 </span><span style="color: #008000">//</span><span style="color: #008000"> 指定要解析的时间格式</span><span style="color: #008000">
</span><span style="color: #000000"> SimpleDateFormat f </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> SimpleDateFormat(</span><span style="color: #000000">"</span><span style="color: #000000">yyyy-MM</span><span style="color: #000000">"</span><span style="color: #000000">);
 </span><span style="color: #008000">//</span><span style="color: #008000"> 返回的月份列表</span><span style="color: #008000">
</span><span style="color: #000000"> String sRet </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">""</span><span style="color: #000000">;

 </span><span style="color: #008000">//</span><span style="color: #008000"> 定义一些变量</span><span style="color: #008000">
</span><span style="color: #000000"> Date beginDate </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">null</span><span style="color: #000000">;
 Date endDate </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">null</span><span style="color: #000000">;

 GregorianCalendar beginGC </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">null</span><span style="color: #000000">;
 GregorianCalendar endGC </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">null</span><span style="color: #000000">;
 ArrayList list </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> ArrayList();

 </span><span style="color: #0000ff">try</span><span style="color: #000000"> {
 </span><span style="color: #008000">//</span><span style="color: #008000"> 将字符串parse成日期</span><span style="color: #008000">
</span><span style="color: #000000"> beginDate </span><span style="color: #000000">=</span><span style="color: #000000"> f.parse(beginDateStr);
 endDate </span><span style="color: #000000">=</span><span style="color: #000000"> f.parse(endDateStr);

 </span><span style="color: #008000">//</span><span style="color: #008000"> 设置日历</span><span style="color: #008000">
</span><span style="color: #000000"> beginGC </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> GregorianCalendar();
 beginGC.setTime(beginDate);

 endGC </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> GregorianCalendar();
 endGC.setTime(endDate);

 </span><span style="color: #008000">//</span><span style="color: #008000"> 直到两个时间相同</span><span style="color: #008000">
</span><span style="color: #000000"> </span><span style="color: #0000ff">while</span><span style="color: #000000"> (beginGC.getTime().compareTo(endGC.getTime()) </span><span style="color: #000000"><=</span><span style="color: #000000"> </span><span style="color: #000000">0</span><span style="color: #000000">) {
 sRet </span><span style="color: #000000">=</span><span style="color: #000000"> beginGC.get(Calendar.YEAR) </span><span style="color: #000000">+</span><span style="color: #000000"> </span><span style="color: #000000">"</span><span style="color: #000000">-</span><span style="color: #000000">"</span><span style="color: #000000">
 </span><span style="color: #000000">+</span><span style="color: #000000"> (beginGC.get(Calendar.MONTH) </span><span style="color: #000000">+</span><span style="color: #000000"> </span><span style="color: #000000">1</span><span style="color: #000000">);
 list.add(sRet);
 </span><span style="color: #008000">//</span><span style="color: #008000"> 以月为单位，增加时间</span><span style="color: #008000">
</span><span style="color: #000000"> beginGC.add(Calendar.MONTH, </span><span style="color: #000000">1</span><span style="color: #000000">);
 }
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> list;
 } </span><span style="color: #0000ff">catch</span><span style="color: #000000"> (Exception e) {
 e.printStackTrace();
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> </span><span style="color: #0000ff">null</span><span style="color: #000000">;
 }
 }

 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * 解析一个日期段之间的所有日期
 * 
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> beginDateStr
 * 开始日期
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> endDateStr
 * 结束日期
 * </span><span style="color: #808080">@return</span><span style="color: #008000">
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> ArrayList getDayList(String beginDateStr, String endDateStr) {
 </span><span style="color: #008000">//</span><span style="color: #008000"> 指定要解析的时间格式</span><span style="color: #008000">
</span><span style="color: #000000"> SimpleDateFormat f </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> SimpleDateFormat(</span><span style="color: #000000">"</span><span style="color: #000000">yyyy-MM-dd</span><span style="color: #000000">"</span><span style="color: #000000">);

 </span><span style="color: #008000">//</span><span style="color: #008000"> 定义一些变量</span><span style="color: #008000">
</span><span style="color: #000000"> Date beginDate </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">null</span><span style="color: #000000">;
 Date endDate </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">null</span><span style="color: #000000">;

 Calendar beginGC </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">null</span><span style="color: #000000">;
 Calendar endGC </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">null</span><span style="color: #000000">;
 ArrayList list </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> ArrayList();

 </span><span style="color: #0000ff">try</span><span style="color: #000000"> {
 </span><span style="color: #008000">//</span><span style="color: #008000"> 将字符串parse成日期</span><span style="color: #008000">
</span><span style="color: #000000"> beginDate </span><span style="color: #000000">=</span><span style="color: #000000"> f.parse(beginDateStr);
 endDate </span><span style="color: #000000">=</span><span style="color: #000000"> f.parse(endDateStr);

 </span><span style="color: #008000">//</span><span style="color: #008000"> 设置日历</span><span style="color: #008000">
</span><span style="color: #000000"> beginGC </span><span style="color: #000000">=</span><span style="color: #000000"> Calendar.getInstance();
 beginGC.setTime(beginDate);

 endGC </span><span style="color: #000000">=</span><span style="color: #000000"> Calendar.getInstance();
 endGC.setTime(endDate);
 SimpleDateFormat sdf </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> SimpleDateFormat(</span><span style="color: #000000">"</span><span style="color: #000000">yyyy-MM-dd</span><span style="color: #000000">"</span><span style="color: #000000">);

 </span><span style="color: #008000">//</span><span style="color: #008000"> 直到两个时间相同</span><span style="color: #008000">
</span><span style="color: #000000"> </span><span style="color: #0000ff">while</span><span style="color: #000000"> (beginGC.getTime().compareTo(endGC.getTime()) </span><span style="color: #000000"><=</span><span style="color: #000000"> </span><span style="color: #000000">0</span><span style="color: #000000">) {

 list.add(sdf.format(beginGC.getTime()));
 </span><span style="color: #008000">//</span><span style="color: #008000"> 以日为单位，增加时间</span><span style="color: #008000">
</span><span style="color: #000000"> beginGC.add(Calendar.DAY_OF_MONTH, </span><span style="color: #000000">1</span><span style="color: #000000">);
 }
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> list;
 } </span><span style="color: #0000ff">catch</span><span style="color: #000000"> (Exception e) {
 e.printStackTrace();
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> </span><span style="color: #0000ff">null</span><span style="color: #000000">;
 }
 }

 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> ArrayList getYearList() {
 ArrayList list </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> ArrayList();
 Calendar c </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">null</span><span style="color: #000000">;
 c </span><span style="color: #000000">=</span><span style="color: #000000"> Calendar.getInstance();
 c.setTime(</span><span style="color: #0000ff">new</span><span style="color: #000000"> Date());
 </span><span style="color: #0000ff">int</span><span style="color: #000000"> currYear </span><span style="color: #000000">=</span><span style="color: #000000"> Calendar.getInstance().get(Calendar.YEAR);

 </span><span style="color: #0000ff">int</span><span style="color: #000000"> startYear </span><span style="color: #000000">=</span><span style="color: #000000"> currYear </span><span style="color: #000000">-</span><span style="color: #000000"> </span><span style="color: #000000">5</span><span style="color: #000000">;
 </span><span style="color: #0000ff">int</span><span style="color: #000000"> endYear </span><span style="color: #000000">=</span><span style="color: #000000"> currYear </span><span style="color: #000000">+</span><span style="color: #000000"> </span><span style="color: #000000">10</span><span style="color: #000000">;
 </span><span style="color: #0000ff">for</span><span style="color: #000000"> (</span><span style="color: #0000ff">int</span><span style="color: #000000"> i </span><span style="color: #000000">=</span><span style="color: #000000"> startYear; i </span><span style="color: #000000"><</span><span style="color: #000000"> endYear; i</span><span style="color: #000000">++</span><span style="color: #000000">) {
 list.add(</span><span style="color: #0000ff">new</span><span style="color: #000000"> Integer(i));
 }
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> list;
 }

 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> getCurrYear() {
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> Calendar.getInstance().get(Calendar.YEAR);
 }

 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * 得到某一年周的总数
 * 
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> year
 * </span><span style="color: #808080">@return</span><span style="color: #008000">
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> LinkedHashMap getWeekList(</span><span style="color: #0000ff">int</span><span style="color: #000000"> year) {
 LinkedHashMap map </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> LinkedHashMap();
 Calendar c </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> GregorianCalendar();
 c.set(year, Calendar.DECEMBER, </span><span style="color: #000000">31</span><span style="color: #000000">, </span><span style="color: #000000">23</span><span style="color: #000000">, </span><span style="color: #000000">59</span><span style="color: #000000">, </span><span style="color: #000000">59</span><span style="color: #000000">);
 </span><span style="color: #0000ff">int</span><span style="color: #000000"> count </span><span style="color: #000000">=</span><span style="color: #000000"> getWeekOfYear(c.getTime());

 SimpleDateFormat sdf </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> SimpleDateFormat(</span><span style="color: #000000">"</span><span style="color: #000000">yyyy-MM-dd</span><span style="color: #000000">"</span><span style="color: #000000">);
 String dayOfWeekStart </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">""</span><span style="color: #000000">;
 String dayOfWeekEnd </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">""</span><span style="color: #000000">;
 </span><span style="color: #0000ff">for</span><span style="color: #000000"> (</span><span style="color: #0000ff">int</span><span style="color: #000000"> i </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">1</span><span style="color: #000000">; i </span><span style="color: #000000"><=</span><span style="color: #000000"> count; i</span><span style="color: #000000">++</span><span style="color: #000000">) {
 dayOfWeekStart </span><span style="color: #000000">=</span><span style="color: #000000"> sdf.format(getFirstDayOfWeek(year, i));
 dayOfWeekEnd </span><span style="color: #000000">=</span><span style="color: #000000"> sdf.format(getLastDayOfWeek(year, i));
 map.put(</span><span style="color: #0000ff">new</span><span style="color: #000000"> Integer(i), </span><span style="color: #000000">"</span><span style="color: #000000">第</span><span style="color: #000000">"</span><span style="color: #000000">+</span><span style="color: #000000">i</span><span style="color: #000000">+</span><span style="color: #000000">"</span><span style="color: #000000">周(从</span><span style="color: #000000">"</span><span style="color: #000000">+</span><span style="color: #000000">dayOfWeekStart </span><span style="color: #000000">+</span><span style="color: #000000"> </span><span style="color: #000000">"</span><span style="color: #000000">至</span><span style="color: #000000">"</span><span style="color: #000000"> </span><span style="color: #000000">+</span><span style="color: #000000"> dayOfWeekEnd</span><span style="color: #000000">+</span><span style="color: #000000">"</span><span style="color: #000000">)</span><span style="color: #000000">"</span><span style="color: #000000">);
 }
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> map;

 }
 
 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * 得到一年的总周数
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> year
 * </span><span style="color: #808080">@return</span><span style="color: #008000">
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> getWeekCountInYear(</span><span style="color: #0000ff">int</span><span style="color: #000000"> year){
 Calendar c </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> GregorianCalendar();
 c.set(year, Calendar.DECEMBER, </span><span style="color: #000000">31</span><span style="color: #000000">, </span><span style="color: #000000">23</span><span style="color: #000000">, </span><span style="color: #000000">59</span><span style="color: #000000">, </span><span style="color: #000000">59</span><span style="color: #000000">);
 </span><span style="color: #0000ff">int</span><span style="color: #000000"> count </span><span style="color: #000000">=</span><span style="color: #000000"> getWeekOfYear(c.getTime());
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> count;
 }

 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * 取得当前日期是多少周
 * 
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> date
 * </span><span style="color: #808080">@return</span><span style="color: #008000">
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">int</span><span style="color: #000000"> getWeekOfYear(Date date) {
 Calendar c </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> GregorianCalendar();
 c.setFirstDayOfWeek(Calendar.MONDAY);
 c.setMinimalDaysInFirstWeek(</span><span style="color: #000000">7</span><span style="color: #000000">);
 c.setTime(date);

 </span><span style="color: #0000ff">return</span><span style="color: #000000"> c.get(Calendar.WEEK_OF_YEAR);
 }

 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * 得到某年某周的第一天
 * 
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> year
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> week
 * </span><span style="color: #808080">@return</span><span style="color: #008000">
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> Date getFirstDayOfWeek(</span><span style="color: #0000ff">int</span><span style="color: #000000"> year, </span><span style="color: #0000ff">int</span><span style="color: #000000"> week) {
 Calendar c </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> GregorianCalendar();
 c.set(Calendar.YEAR, year);
 c.set(Calendar.MONTH, Calendar.JANUARY);
 c.set(Calendar.DATE, </span><span style="color: #000000">1</span><span style="color: #000000">);

 Calendar cal </span><span style="color: #000000">=</span><span style="color: #000000"> (GregorianCalendar) c.clone();
 cal.add(Calendar.DATE, week </span><span style="color: #000000">*</span><span style="color: #000000"> </span><span style="color: #000000">7</span><span style="color: #000000">);

 </span><span style="color: #0000ff">return</span><span style="color: #000000"> getFirstDayOfWeek(cal.getTime());
 }

 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * 得到某年某周的最后一天
 * 
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> year
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> week
 * </span><span style="color: #808080">@return</span><span style="color: #008000">
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> Date getLastDayOfWeek(</span><span style="color: #0000ff">int</span><span style="color: #000000"> year, </span><span style="color: #0000ff">int</span><span style="color: #000000"> week) {
 Calendar c </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> GregorianCalendar();
 c.set(Calendar.YEAR, year);
 c.set(Calendar.MONTH, Calendar.JANUARY);
 c.set(Calendar.DATE, </span><span style="color: #000000">1</span><span style="color: #000000">);

 Calendar cal </span><span style="color: #000000">=</span><span style="color: #000000"> (GregorianCalendar) c.clone();
 cal.add(Calendar.DATE, week </span><span style="color: #000000">*</span><span style="color: #000000"> </span><span style="color: #000000">7</span><span style="color: #000000">);

 </span><span style="color: #0000ff">return</span><span style="color: #000000"> getLastDayOfWeek(cal.getTime());
 }
 
 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * 得到某年某月的第一天
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> year
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> month
 * </span><span style="color: #808080">@return</span><span style="color: #008000">
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> Date getFirestDayOfMonth(</span><span style="color: #0000ff">int</span><span style="color: #000000"> year,</span><span style="color: #0000ff">int</span><span style="color: #000000"> month){
 month </span><span style="color: #000000">=</span><span style="color: #000000"> month</span><span style="color: #000000">-</span><span style="color: #000000">1</span><span style="color: #000000">;
 Calendar c </span><span style="color: #000000">=</span><span style="color: #000000"> Calendar.getInstance(); 
 c.set(Calendar.YEAR, year);
 c.set(Calendar.MONTH, month);
 
 </span><span style="color: #0000ff">int</span><span style="color: #000000"> day </span><span style="color: #000000">=</span><span style="color: #000000"> c.getActualMinimum(c.DAY_OF_MONTH);

 c.set(Calendar.DAY_OF_MONTH, day);
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> c.getTime();
 
 }
 
 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * 提到某年某月的最后一天
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> year
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> month
 * </span><span style="color: #808080">@return</span><span style="color: #008000">
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> Date getLastDayOfMonth(</span><span style="color: #0000ff">int</span><span style="color: #000000"> year,</span><span style="color: #0000ff">int</span><span style="color: #000000"> month){
 month </span><span style="color: #000000">=</span><span style="color: #000000"> month</span><span style="color: #000000">-</span><span style="color: #000000">1</span><span style="color: #000000">;
 Calendar c </span><span style="color: #000000">=</span><span style="color: #000000"> Calendar.getInstance(); 
 c.set(Calendar.YEAR, year);
 c.set(Calendar.MONTH, month);
 </span><span style="color: #0000ff">int</span><span style="color: #000000"> day </span><span style="color: #000000">=</span><span style="color: #000000"> c.getActualMaximum(c.DAY_OF_MONTH);
 c.set(Calendar.DAY_OF_MONTH, day);
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> c.getTime();
 }

 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * 取得当前日期所在周的第一天
 * 
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> date
 * </span><span style="color: #808080">@return</span><span style="color: #008000">
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> Date getFirstDayOfWeek(Date date) {
 Calendar c </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> GregorianCalendar();
 c.setFirstDayOfWeek(Calendar.MONDAY);
 c.setTime(date);
 c.set(Calendar.DAY_OF_WEEK, c.getFirstDayOfWeek()); </span><span style="color: #008000">//</span><span style="color: #008000"> Monday</span><span style="color: #008000">
</span><span style="color: #000000"> </span><span style="color: #0000ff">return</span><span style="color: #000000"> c.getTime();
 }

 </span><span style="color: #008000">/**</span><span style="color: #008000">
 * 取得当前日期所在周的最后一天
 * 
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> date
 * </span><span style="color: #808080">@return</span><span style="color: #008000">
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> Date getLastDayOfWeek(Date date) {
 Calendar c </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> GregorianCalendar();
 c.setFirstDayOfWeek(Calendar.MONDAY);
 c.setTime(date);
 c.set(Calendar.DAY_OF_WEEK, c.getFirstDayOfWeek() </span><span style="color: #000000">+</span><span style="color: #000000"> </span><span style="color: #000000">6</span><span style="color: #000000">); </span><span style="color: #008000">//</span><span style="color: #008000"> Sunday</span><span style="color: #008000">
</span><span style="color: #000000"> </span><span style="color: #0000ff">return</span><span style="color: #000000"> c.getTime();
 }

}
</span>
</div>
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