对于工作日处理相对来说还是比较简单的，不外乎就是周末判断和假期判断。
不过，有些人会把它们写死在类里面，看以下代码：
耦合性较强的代码：
Java代码 
- public class WeekdayUtil {
- /**
- * @title 判断两个日期是否在指定工作日内
- * @detail (只计算周六和周日)
- * 例如：前时间2008-12-05，后时间2008-12-11
- * @author chanson
- * @param beforeDate 前时间
- * @param afterDate 后时间
- * @param deadline 最多相隔时间
- * @return 是的话，返回true，否则返回false
- */
- public boolean compareWeekday(String beforeDate, String afterDate, int deadline) {
- SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
- try {
- Date d1 = sdf.parse(beforeDate);
- Date d2 = sdf.parse(afterDate);
- //工作日
- int workDay = 0;
- GregorianCalendar gc = new GregorianCalendar();
- gc.setTime(d1);
- // 两个日期相差的天数
- long time = d2.getTime() - d1.getTime();
- long day = time / 3600000 / 24 + 1;
- if(day < 0){
- //如果前日期大于后日期，将返回false
- return false;
- }
- for (int i = 0; i < day; i++) {
- if(isWeekday(gc)){
- workDay++;
- // System.out.println(gc.getTime());
- }
- //往后加1天
- gc.add(GregorianCalendar.DATE, 1);
- }
- return workDay <= deadline;
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- }
- }
- /**
- * @title 判断是否为工作日
- * @detail 工作日计算:
- * 1、正常工作日，并且为非假期
- * 2、周末被调整成工作日
- * @author chanson
- * @param date 日期
- * @return 是工作日返回true，非工作日返回false
- */
- public boolean isWeekday(GregorianCalendar calendar){
- SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
- if (calendar.get(GregorianCalendar.DAY_OF_WEEK) != GregorianCalendar.SATURDAY
- && calendar.get(GregorianCalendar.DAY_OF_WEEK) != GregorianCalendar.SUNDAY){
- //平时
- return !getWeekdayIsHolidayList().contains(sdf.format(calendar.getTime()));
- }else{
- //周末
- return getWeekendIsWorkDateList().contains(sdf.format(calendar.getTime()));
- }
- }
- /**
- * @title 获取周六和周日是工作日的情况（手工维护）
- * 注意，日期必须写全：
- * 2009-1-4必须写成：2009-01-04
- * @author chanson
- * @return 周末是工作日的列表
- */
- public List getWeekendIsWorkDateList(){
- List list = new ArrayList();
- list.add("2009-01-04");
- list.add("2009-01-24");
- list.add("2009-02-01");
- list.add("2009-05-31");
- list.add("2009-09-27");
- list.add("2009-10-10");
- return list;
- }
- /**
- * @title 获取周一到周五是假期的情况（手工维护）
- * 注意，日期必须写全：
- * 2009-1-4必须写成：2009-01-04
- * @author chanson
- * @return 平时是假期的列表
- */
- public List getWeekdayIsHolidayList(){
- List list = new ArrayList();
- list.add("2009-01-29");
- list.add("2009-01-30");
- list.add("2009-04-06");
- list.add("2009-05-01");
- list.add("2009-05-28");
- list.add("2009-05-29");
- list.add("2009-10-01");
- list.add("2009-10-02");
- list.add("2009-10-05");
- list.add("2009-10-06");
- list.add("2009-10-07");
- list.add("2009-10-08");
- return list;
- }
- public static void main(String[] args) {
- WeekdayUtil dateUtils = new WeekdayUtil();
- boolean ok = dateUtils.compareWeekday("2009-10-1", "2009-10-15", 5);
- System.out.println("是否在五个工作日内：" + ok);
- }
- }
public class WeekdayUtil {
/**
* @title 判断两个日期是否在指定工作日内
* @detail (只计算周六和周日)
* 例如：前时间2008-12-05，后时间2008-12-11
* @author chanson
* @param beforeDate 前时间
* @param afterDate 后时间
* @param deadline 最多相隔时间
* @return 是的话，返回true，否则返回false
*/
public boolean compareWeekday(String beforeDate, String afterDate, int deadline) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
try {
Date d1 = sdf.parse(beforeDate);
Date d2 = sdf.parse(afterDate);
//工作日
int workDay = 0;
GregorianCalendar gc = new GregorianCalendar();
gc.setTime(d1);
// 两个日期相差的天数
long time = d2.getTime() - d1.getTime();
long day = time / 3600000 / 24 + 1;
if(day < 0){
//如果前日期大于后日期，将返回false
return false;
}
for (int i = 0; i < day; i++) {
if(isWeekday(gc)){
workDay++;
// System.out.println(gc.getTime());
}
//往后加1天
gc.add(GregorianCalendar.DATE, 1);
}
return workDay <= deadline;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* @title 判断是否为工作日
* @detail 工作日计算:
* 1、正常工作日，并且为非假期
* 2、周末被调整成工作日
* @author chanson
* @param date 日期
* @return 是工作日返回true，非工作日返回false
*/
public boolean isWeekday(GregorianCalendar calendar){
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
if (calendar.get(GregorianCalendar.DAY_OF_WEEK) != GregorianCalendar.SATURDAY
&& calendar.get(GregorianCalendar.DAY_OF_WEEK) != GregorianCalendar.SUNDAY){
//平时
return !getWeekdayIsHolidayList().contains(sdf.format(calendar.getTime()));
}else{
//周末
return getWeekendIsWorkDateList().contains(sdf.format(calendar.getTime()));
}
}
/**
* @title 获取周六和周日是工作日的情况（手工维护）
* 注意，日期必须写全：
* 2009-1-4必须写成：2009-01-04
* @author chanson
* @return 周末是工作日的列表
*/
public List getWeekendIsWorkDateList(){
List list = new ArrayList();
list.add("2009-01-04");
list.add("2009-01-24");
list.add("2009-02-01");
list.add("2009-05-31");
list.add("2009-09-27");
list.add("2009-10-10");
return list;
}
/**
* @title 获取周一到周五是假期的情况（手工维护）
* 注意，日期必须写全：
* 2009-1-4必须写成：2009-01-04
* @author chanson
* @return 平时是假期的列表
*/
public List getWeekdayIsHolidayList(){
List list = new ArrayList();
list.add("2009-01-29");
list.add("2009-01-30");
list.add("2009-04-06");
list.add("2009-05-01");
list.add("2009-05-28");
list.add("2009-05-29");
list.add("2009-10-01");
list.add("2009-10-02");
list.add("2009-10-05");
list.add("2009-10-06");
list.add("2009-10-07");
list.add("2009-10-08");
return list;
}
public static void main(String[] args) {
WeekdayUtil dateUtils = new WeekdayUtil();
boolean ok = dateUtils.compareWeekday("2009-10-1", "2009-10-15", 5);
System.out.println("是否在五个工作日内：" + ok);
}
}
这个类相对来说写得就比较死了——太不遵循OCP原则了吧。
有人说，把工作日配置在数据库中，而且还能根据一定的规律推算出假期来——很厉害，一次生成50年的工作日。但国家
的假期是会变的，比如取消5.1长假就是一个很典型的例子，总不至于每次都得改算法吧。搞不准过2年后，连10.1长假都
没了。
相对来说，我觉得还是放在XML文件中配置比较灵活。那有人会怀疑说，每次都得访问XML会不会有效率问题。
当然，如果你项目中使用它非常频繁的话，那就把数据放在内存中吧。每次修改该XML文件的时候刷新内存就可以了。
【改造】
1、引入XML
Java代码
- <?xml version="1.0" encoding="utf-8"?>
- <root>
- <validation>
- <list>
- <!-- 非补报报文的交易时间必须在5个工作日内 -->
- <key>EXCH_DATE_CHECK</key>
- <value>5</value>
- </list>
- <list>
- <!-- 回执处理必须在5个工作日内 -->
- <key>REC_DATE_CHECK</key>
- <value>5</value>
- </list>
- </validation>
- <!-- 工作日是假期的情况 -->
- <weekday>
- <holiday_list>
- <date>2009-01-29</date>
- <date>2009-01-30</date>
- <date>2009-04-06</date>
- <date>2009-05-01</date>
- <date>2009-05-28</date>
- <date>2009-05-29</date>
- <date>2009-10-01</date>
- <date>2009-10-02</date>
- <date>2009-10-05</date>
- <date>2009-10-06</date>
- <date>2009-10-07</date>
- <date>2009-10-08</date>
- </holiday_list>
- </weekday>
- <!-- 周末是工作日的情况 -->
- <weekend>
- <weekday_list>
- <date>2009-01-04</date>
- <date>2009-01-24</date>
- <date>2009-02-01</date>
- <date>2009-05-31</date>
- <date>2009-09-27</date>
- <date>2009-10-10</date>
- </weekday_list>
- </weekend>
- </root>
<?xml version="1.0" encoding="utf-8"?> <root> <validation> <list> <!-- 非补报报文的交易时间必须在5个工作日内 --> <key>EXCH_DATE_CHECK</key> <value>5</value> </list> <list> <!-- 回执处理必须在5个工作日内 --> <key>REC_DATE_CHECK</key> <value>5</value> </list> </validation> <!-- 工作日是假期的情况 --> <weekday> <holiday_list> <date>2009-01-29</date> <date>2009-01-30</date> <date>2009-04-06</date> <date>2009-05-01</date> <date>2009-05-28</date> <date>2009-05-29</date> <date>2009-10-01</date> <date>2009-10-02</date> <date>2009-10-05</date> <date>2009-10-06</date> <date>2009-10-07</date> <date>2009-10-08</date> </holiday_list> </weekday> <!-- 周末是工作日的情况 --> <weekend> <weekday_list> <date>2009-01-04</date> <date>2009-01-24</date> <date>2009-02-01</date> <date>2009-05-31</date> <date>2009-09-27</date> <date>2009-10-10</date> </weekday_list> </weekend> </root>
注：该XML文件放在src/config下。
2、增加解析XML的方法
Java代码
- public class Dom4JUtil {
- private final static String BASE_PATH = "/config/";
- public String getConfFile(String file) {
- URL confURL = getClass().getClassLoader().getResource(file);
- if (confURL == null)
- confURL = getClass().getClassLoader().getResource(
- "META-INF/" + file);
- if (confURL == null)
- confURL = Thread.currentThread().getContextClassLoader()
- .getResource(file);
- if (confURL == null) {
- System.err.println(" cann't find config file:-->" + file);
- } else {
- String filePath = confURL.getFile();
- filePath = filePath.replaceAll("%20", " ");
- File file1 = new File(filePath);
- if (file1.isFile())
- return filePath;
- }
- return null;
- }
- /**
- * @title 获取工作日相关配置
- * @author chanson
- * @return
- */
- public WeekdayVO getWeekdayConfig(){
- Map validateMap = new HashMap();
- List weekendIsWeekdayList = new ArrayList();
- List weekdayIsHolidayList = new ArrayList();
- //1、放到web工程
- File f = new File(getConfFile(BASE_PATH + "weekday.xml"));
- //2、application测试
- //String file = "D:/workspace/test/src/config/weekday.xml";
- //File f = new File(file);
- SAXReader reader = new SAXReader();
- try{
- Document doc = reader.read(f);
- Element root = doc.getRootElement();
- //===================================
- //工作日校验相关属性
- //===================================
- Element validationElement = root.element("validation");
- Element listElement;
- for(Iterator i = validationElement.elementIterator("list");i.hasNext();){
- listElement = (Element)i.next();
- validateMap.put((String) listElement.elementText("key"),
- (String)listElement.elementText("value"));
- }
- //===================================
- //工作日是假期的列表
- //===================================
- Element weekdayElement = root.element("weekday");
- Element holidayListElement = weekdayElement.element("holiday_list");
- Element holidayValueElement = null;
- for(Iterator i = holidayListElement.elementIterator("date");i.hasNext();){
- holidayValueElement = (Element)i.next();
- weekdayIsHolidayList.add((String)holidayValueElement.getText());
- }
- //===================================
- //周末是工作日的列表
- //===================================
- Element weekendElement = root.element("weekend");
- Element weekdayListElement = weekendElement.element("weekday_list");
- Element weekdayValueElement = null;
- for(Iterator i = weekdayListElement.elementIterator("date");i.hasNext();){
- weekdayValueElement = (Element)i.next();
- weekendIsWeekdayList.add((String)weekdayValueElement.getText());
- }
- WeekdayVO vo = new WeekdayVO();
- vo.setValidateMap(validateMap);
- vo.setWeekdayIsHolidayList(weekdayIsHolidayList);
- vo.setWeekendIsWeekdayList(weekendIsWeekdayList);
- return vo;
- }catch(Exception e){
- e.printStackTrace();
- return null;
- }
- }
- public static void main(String[] args) {
- Dom4JUtil dom4JUtil = new Dom4JUtil();
- WeekdayVO vo = dom4JUtil.getWeekdayConfig();
- System.out.println(vo.getWeekdayIsHolidayList());
- System.out.println(vo.getWeekendIsWeekdayList());
- }
- }
public class Dom4JUtil {
private final static String BASE_PATH = "/config/";
public String getConfFile(String file) {
URL confURL = getClass().getClassLoader().getResource(file);
if (confURL == null)
confURL = getClass().getClassLoader().getResource(
"META-INF/" + file);
if (confURL == null)
confURL = Thread.currentThread().getContextClassLoader()
.getResource(file);
if (confURL == null) {
System.err.println(" cann't find config file:-->" + file);
} else {
String filePath = confURL.getFile();
filePath = filePath.replaceAll("%20", " ");
File file1 = new File(filePath);
if (file1.isFile())
return filePath;
}
return null;
}
/**
* @title 获取工作日相关配置
* @author chanson
* @return
*/
public WeekdayVO getWeekdayConfig(){
Map validateMap = new HashMap();
List weekendIsWeekdayList = new ArrayList();
List weekdayIsHolidayList = new ArrayList();
//1、放到web工程
File f = new File(getConfFile(BASE_PATH + "weekday.xml"));
//2、application测试
//String file = "D:/workspace/test/src/config/weekday.xml";
//File f = new File(file);
SAXReader reader = new SAXReader();
try{
Document doc = reader.read(f);
Element root = doc.getRootElement();
//===================================
//工作日校验相关属性
//===================================
Element validationElement = root.element("validation");
Element listElement;
for(Iterator i = validationElement.elementIterator("list");i.hasNext();){
listElement = (Element)i.next();
validateMap.put((String) listElement.elementText("key"),
(String)listElement.elementText("value"));
}
//===================================
//工作日是假期的列表
//===================================
Element weekdayElement = root.element("weekday");
Element holidayListElement = weekdayElement.element("holiday_list");
Element holidayValueElement = null;
for(Iterator i = holidayListElement.elementIterator("date");i.hasNext();){
holidayValueElement = (Element)i.next();
weekdayIsHolidayList.add((String)holidayValueElement.getText());
}
//===================================
//周末是工作日的列表
//===================================
Element weekendElement = root.element("weekend");
Element weekdayListElement = weekendElement.element("weekday_list");
Element weekdayValueElement = null;
for(Iterator i = weekdayListElement.elementIterator("date");i.hasNext();){
weekdayValueElement = (Element)i.next();
weekendIsWeekdayList.add((String)weekdayValueElement.getText());
}
WeekdayVO vo = new WeekdayVO();
vo.setValidateMap(validateMap);
vo.setWeekdayIsHolidayList(weekdayIsHolidayList);
vo.setWeekendIsWeekdayList(weekendIsWeekdayList);
return vo;
}catch(Exception e){
e.printStackTrace();
return null;
}
}
public static void main(String[] args) {
Dom4JUtil dom4JUtil = new Dom4JUtil();
WeekdayVO vo = dom4JUtil.getWeekdayConfig();
System.out.println(vo.getWeekdayIsHolidayList());
System.out.println(vo.getWeekendIsWeekdayList());
}
}
使用了一个POJO类：
Java代码
- public class WeekdayVO {
- private Map validateMap;//工作日校验
- private List weekendIsWeekdayList;//周末是工作日的列表
- private List weekdayIsHolidayList;//工作日是假期的列表
- //setter/getter(省略)
- }
public class WeekdayVO {
private Map validateMap;//工作日校验
private List weekendIsWeekdayList;//周末是工作日的列表
private List weekdayIsHolidayList;//工作日是假期的列表
//setter/getter(省略)
}
3、修改WeekUtil类中的方法
1）、修改工作日判断方法：
Java代码
- public boolean isWeekday(GregorianCalendar calendar){
- Dom4JUtil dom4JUtil = new Dom4JUtil();
- WeekdayVO vo = dom4JUtil.getWeekdayConfig();
- SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
- if (calendar.get(GregorianCalendar.DAY_OF_WEEK) != GregorianCalendar.SATURDAY
- && calendar.get(GregorianCalendar.DAY_OF_WEEK) != GregorianCalendar.SUNDAY){
- //平时
- return !vo.getWeekdayIsHolidayList().contains(sdf.format(calendar.getTime()));
- }else{
- //周末
- return vo.getWeekendIsWeekdayList().contains(sdf.format(calendar.getTime()));
- }
- }
public boolean isWeekday(GregorianCalendar calendar){
Dom4JUtil dom4JUtil = new Dom4JUtil();
WeekdayVO vo = dom4JUtil.getWeekdayConfig();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
if (calendar.get(GregorianCalendar.DAY_OF_WEEK) != GregorianCalendar.SATURDAY
&& calendar.get(GregorianCalendar.DAY_OF_WEEK) != GregorianCalendar.SUNDAY){
//平时
return !vo.getWeekdayIsHolidayList().contains(sdf.format(calendar.getTime()));
}else{
//周末
return vo.getWeekendIsWeekdayList().contains(sdf.format(calendar.getTime()));
}
}
2）、修改调用方式：
Java代码
- public static void main(String[] args) {
- Dom4JUtil dom4JUtil = new Dom4JUtil();
- Map validateMap = dom4JUtil.getWeekdayConfig().getValidateMap();
- String EXCH_DATE_CHECK = (String)validateMap.get("EXCH_DATE_CHECK");
- WeekdayUtil dateUtils = new WeekdayUtil();
- boolean ok = dateUtils.compareWeekday("2009-10-1", "2009-10-15", Integer.parseInt(EXCH_DATE_CHECK));
- System.out.println("是否在五个工作日内：" + ok);
- }
public static void main(String[] args) {
Dom4JUtil dom4JUtil = new Dom4JUtil();
Map validateMap = dom4JUtil.getWeekdayConfig().getValidateMap();
String EXCH_DATE_CHECK = (String)validateMap.get("EXCH_DATE_CHECK");
WeekdayUtil dateUtils = new WeekdayUtil();
boolean ok = dateUtils.compareWeekday("2009-10-1", "2009-10-15", Integer.parseInt(EXCH_DATE_CHECK));
System.out.println("是否在五个工作日内：" + ok);
}
改造完毕。
更高级的改造
对于我现在的项目来说，算是完成了。当然还可以改得更好一些：
1、扩展XML，区分每年的工作日。（对于某些统计分析的项目，可能会用得着）
2、添加可视化页面配置，避免了人工修改配置文件。
3、目前的XML文件中的日期格式有要求：
必须补全10位。例如：2008-1-1 必须配置成 2008-01-01。否则将匹配不上。
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