dateweek.java

OBPM是一个开源

package cn.myapps.util;

import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;


public class DateWeek {
public static String GetName(String s) throws Exception
  {
  	Date dt = DateUtil.parseDate(s);
  	String name="null";
  	//System.out.println(dt.getDay());
  	if (dt.getDay() ==0 || dt.getDay()==6)
  	{
  		name="02";
  	}
  	else
  	{
  		name="01";
  	}
  	return name;
  }

public static String Getstartday(String s) throws Exception
{
	Date dt = DateUtil.parseDate(s);
	String name="0";
	name = String.valueOf(dt.getDay());
	return name;
}

public static int getDays(String month,String year) 
  { 
  	int days=30;
  	if (month.equalsIgnoreCase("01") || month.equalsIgnoreCase("1"))
  	{
  		days=31;
  	}
	if (month.equalsIgnoreCase("02") || month.equalsIgnoreCase("2"))
  	{
		if((Integer.parseInt(year)%4)==0 && (((Integer.parseInt(year)%100)!=0)||((Integer.parseInt(year)%400)==0)))
  		{
			days=29;
			}
		else
		{
			days=28;
		}
  	}
	if (month.equalsIgnoreCase("03") || month.equalsIgnoreCase("3"))
  	{
		days=31;
  	}
	if (month.equalsIgnoreCase("04") || month.equalsIgnoreCase("4"))
  	{
		days=30;
  	}
	if (month.equalsIgnoreCase("05") || month.equalsIgnoreCase("5"))
  	{
		days=31;
  	}
	if (month.equalsIgnoreCase("06") || month.equalsIgnoreCase("6"))
  	{
		days=30;
  	}
	if (month.equalsIgnoreCase("07") || month.equalsIgnoreCase("7"))
  	{
		days=31;
  	}
	if (month.equalsIgnoreCase("08") || month.equalsIgnoreCase("8"))
  	{
		days=31;
  	}
	if (month.equalsIgnoreCase("09") || month.equalsIgnoreCase("9"))
  	{
		days=30;
  	}
	if (month.equalsIgnoreCase("10") || month.equalsIgnoreCase("10"))
  	{
		days=31;
  	}
	if (month.equalsIgnoreCase("11") || month.equalsIgnoreCase("11"))
  	{
		days=30;
  	}
	if (month.equalsIgnoreCase("12") || month.equalsIgnoreCase("12"))
  	{
		days=31;
  	}
	return days;
  }

/*
 * 返回本月1号所属星期位置
 */
public static int getStartday(java.sql.Date date) {
  Calendar scalendar = new GregorianCalendar();
  scalendar.setTime(date);
  scalendar.set(Calendar.DATE, 1);
  Date d = scalendar.getTime(); 
  return d.getDay();
}

/*
 * 返回此日期所属星期位置
 */
public static int getDay(java.sql.Date date) {
  Calendar scalendar = new GregorianCalendar();
  scalendar.setTime(date);
  Date d = scalendar.getTime(); 
  return d.getDay();
}

  public static int getDays(java.sql.Date date){
    int year = date.getYear() + 1900;
    int month = date.getMonth() + 1;
    return getDays(String.valueOf(month), String.valueOf(year));
  }

  //获取当天所在星期日期
  public static java.sql.Date[] getWeekDate(java.sql.Date date){
    java.sql.Date[] dates = new java.sql.Date[7];
    Calendar scalendar = new GregorianCalendar();
    scalendar.setTime(date);
    scalendar.set(GregorianCalendar.DAY_OF_WEEK,GregorianCalendar.SUNDAY); 
    dates[0] = new java.sql.Date(scalendar.getTime().getTime()); 
    scalendar.set(GregorianCalendar.DAY_OF_WEEK,GregorianCalendar.MONDAY); 
    dates[1] = new java.sql.Date(scalendar.getTime().getTime()); 
    scalendar.set(GregorianCalendar.DAY_OF_WEEK,GregorianCalendar.TUESDAY); 
    dates[2] = new java.sql.Date(scalendar.getTime().getTime()); 
    scalendar.set(GregorianCalendar.DAY_OF_WEEK,GregorianCalendar.WEDNESDAY); 
    dates[3] = new java.sql.Date(scalendar.getTime().getTime()); 
    scalendar.set(GregorianCalendar.DAY_OF_WEEK,GregorianCalendar.THURSDAY); 
    dates[4] = new java.sql.Date(scalendar.getTime().getTime()); 
    scalendar.set(GregorianCalendar.DAY_OF_WEEK,GregorianCalendar.FRIDAY); 
    dates[5] = new java.sql.Date(scalendar.getTime().getTime());  
    scalendar.set(GregorianCalendar.DAY_OF_WEEK,GregorianCalendar.SATURDAY); 
    dates[6] = new java.sql.Date(scalendar.getTime().getTime()); 
    return dates;
  }

  //获取星期名称
  public static String getWeekName(int i){
    if(i == 0){
      return "星期日";
    }else if(i == 1){
      return "星期一";
    }else if(i == 2){
      return "星期二";
    }else if(i == 3){
      return "星期三";
    }else if(i == 4){
      return "星期四";
    }else if(i == 5){
      return "星期五";
    }else if(i == 6){
      return "星期六";
    }
    return "";
  }
  public static void main(String[] args){
    try{
    Calendar scalendar = new GregorianCalendar();
    java.sql.Date d = new java.sql.Date(System.currentTimeMillis());
//    System.out.println(d);
    scalendar.setTime(d);
//    System.out.println(d.getDate());
    System.out.println(DateWeek.getDay(d));
    String s = "2005-7-15";
    System.out.println(Getstartday(s));
    
    int year = d.getYear();
    int month = d.getMonth();
    java.sql.Date dt = new java.sql.Date(year, month, 22);
    System.out.println(dt);
    System.out.println(DateWeek.getDay(dt));
    }catch(Exception ex){
      ex.printStackTrace();
    }
  }
}