得到java时间戳 用于数据库中按时间戳查询数据

得到java时间戳 用于数据库中按时间戳查询数据
包括:今天、昨天、本周、本月、本年、选定的时间段
package test;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;

public class DateTest {
public static long FromYear(){
Calendar nowDate = new java.util.GregorianCalendar();
nowDate.set(Calendar.HOUR_OF_DAY,0);
nowDate.set(Calendar.MINUTE,0);
nowDate.set(Calendar.SECOND,0);
nowDate.set(Calendar.MILLISECOND,0);
nowDate.set(Calendar.DAY_OF_MONTH,1);
nowDate.set(Calendar.MONTH,0);
return  nowDate.getTimeInMillis()/1000;
}

public static long ToYear(){
Calendar nowDate= new java.util.GregorianCalendar();
nowDate.set(Calendar.HOUR_OF_DAY,0);
nowDate.set(Calendar.MINUTE,0);
nowDate.set(Calendar.SECOND,0);
nowDate.set(Calendar.MILLISECOND,0);
nowDate.set(Calendar.DAY_OF_MONTH,1);
nowDate.set(Calendar.MONTH,12);
return  nowDate.getTimeInMillis()/1000;
}

public static long FromMonth(){
Calendar nowDate = new java.util.GregorianCalendar();
nowDate.set(Calendar.HOUR_OF_DAY,0);
nowDate.set(Calendar.MINUTE,0);
nowDate.set(Calendar.SECOND,0);
nowDate.set(Calendar.MILLISECOND,0);
nowDate.set(Calendar.DAY_OF_MONTH,1);
return  nowDate.getTimeInMillis()/1000;
}

public static long ToMonth(){
Calendar nowDate = new java.util.GregorianCalendar();
nowDate.set(Calendar.HOUR_OF_DAY,0);
nowDate.set(Calendar.MINUTE,0);
nowDate.set(Calendar.SECOND,0);
nowDate.set(Calendar.MILLISECOND,0);
nowDate.set(Calendar.DAY_OF_MONTH,1);
nowDate.add(Calendar.MONTH,1);
return  nowDate.getTimeInMillis()/1000;
}


public static long FromWeek(){
Calendar nowDate = new java.util.GregorianCalendar();
nowDate.set(Calendar.HOUR_OF_DAY,0);
nowDate.set(Calendar.MINUTE,0);
nowDate.set(Calendar.SECOND,0);
nowDate.set(Calendar.MILLISECOND,0);
nowDate.set(Calendar.DAY_OF_WEEK,Calendar.MONDAY);
return  nowDate.getTimeInMillis()/1000;
}

public static long ToWeek(){
Calendar nowDate = new java.util.GregorianCalendar();
nowDate.set(Calendar.HOUR_OF_DAY,0);
nowDate.set(Calendar.MINUTE,0);
nowDate.set(Calendar.SECOND,0);
nowDate.set(Calendar.MILLISECOND,0);
nowDate.set(Calendar.DAY_OF_WEEK,Calendar.MONDAY);
nowDate.add(Calendar.WEEK_OF_MONTH,1);
return  nowDate.getTimeInMillis()/1000;
}

public static long FromYesterday(){
Calendar nowDate = new java.util.GregorianCalendar();
nowDate.set(Calendar.HOUR_OF_DAY,0);
nowDate.set(Calendar.MINUTE,0);
nowDate.set(Calendar.SECOND,0);
nowDate.set(Calendar.MILLISECOND,0);
nowDate.add(Calendar.DAY_OF_MONTH,-1);
return  nowDate.getTimeInMillis()/1000;
}

public static long ToYesterday(){
Calendar nowDate = new java.util.GregorianCalendar();
nowDate.set(Calendar.HOUR_OF_DAY,0);
nowDate.set(Calendar.MINUTE,0);
nowDate.set(Calendar.SECOND,0);
nowDate.set(Calendar.MILLISECOND,0);
return  nowDate.getTimeInMillis()/1000;
}

public static long FromToday(){
Calendar nowDate = new java.util.GregorianCalendar();
nowDate.set(Calendar.HOUR_OF_DAY,0);
nowDate.set(Calendar.MINUTE,0);
nowDate.set(Calendar.SECOND,0);
nowDate.set(Calendar.MILLISECOND,0);
return  nowDate.getTimeInMillis()/1000;
}

public static long ToToday(){
Calendar nowDate = new java.util.GregorianCalendar();
nowDate.set(Calendar.HOUR_OF_DAY,0);
nowDate.set(Calendar.MINUTE,0);
nowDate.set(Calendar.SECOND,0);
nowDate.set(Calendar.MILLISECOND,0);
nowDate.add(Calendar.DAY_OF_MONTH,1);
return  nowDate.getTimeInMillis()/1000;
}


/**startDate 格式 2009-02-03
* startTime 格式 12:20
* */
public static long FromTime(String startDate,String startTime){
Calendar nowDate = new java.util.GregorianCalendar();
long fromtime=0;
if(!startDate.equals("")){
String []s=startDate.split("-");
nowDate = new java.util.GregorianCalendar();
nowDate.set(Calendar.DAY_OF_MONTH,Integer.parseInt(s[2]));
nowDate.set(Calendar.MONTH,Integer.parseInt(s[1])-1);
nowDate.set(Calendar.YEAR,Integer.parseInt(s[0]));

String []t=startTime.split(":");
nowDate.set(Calendar.HOUR_OF_DAY,Integer.parseInt(t[0]));
nowDate.set(Calendar.MINUTE,Integer.parseInt(t[1]));
nowDate.set(Calendar.SECOND,0);
fromtime = nowDate.getTimeInMillis()/1000;
}
return fromtime;
}

/**endDate 格式 2009-02-03
* endTime 格式 12:20
* */
public static long ToTime(String endDate,String endTime){
Calendar nowDate = new java.util.GregorianCalendar();
long totime=0;
if(!endDate.equals("")){
String []s=endDate.split("-");
nowDate = new java.util.GregorianCalendar();
nowDate.set(Calendar.DAY_OF_MONTH,Integer.parseInt(s[2]));
nowDate.set(Calendar.MONTH,Integer.parseInt(s[1])-1);
nowDate.set(Calendar.YEAR,Integer.parseInt(s[0]));

String []t=endTime.split(":");
nowDate.set(Calendar.HOUR_OF_DAY,Integer.parseInt(t[0]));
nowDate.set(Calendar.MINUTE,Integer.parseInt(t[1]));
nowDate.set(Calendar.SECOND,0);
totime = nowDate.getTimeInMillis()/1000;
}
return totime;
}
//格式化时间戳，参数为秒，不需要乘以1000
public static String FormatTimeStamp(String pattern, long date) {
if(pattern.length()==0)
pattern = "yyyy-MM-dd HH:mm:ss";
java.util.Calendar nowDate = new java.util.GregorianCalendar();
nowDate.setTimeInMillis(date*1000);
DateFormat df = new SimpleDateFormat(pattern);
return df.format(nowDate.getTime());
}
public static void main(String args[]){
System.out.println("今天:");
System.out.println(FormatTimeStamp("",FromToday())+"---"+FormatTimeStamp("",ToToday()));
System.out.println("昨天:");
System.out.println(FormatTimeStamp("",FromYesterday())+"---"+FormatTimeStamp("",ToYesterday()));
System.out.println("本周:");
System.out.println(FormatTimeStamp("",FromWeek())+"---"+FormatTimeStamp("",ToWeek()));
System.out.println("本月:");
System.out.println(FormatTimeStamp("",FromMonth())+"---"+FormatTimeStamp("",ToMonth()));
System.out.println("本年:");
System.out.println(FormatTimeStamp("",FromYear())+"---"+FormatTimeStamp("",ToYear()));
System.out.println("固定时间段：2008-02-28 00:00-----2009-03-31 12:22");
System.out.println(FormatTimeStamp("",FromTime("2008-02-28","00:00"))+"---"+FormatTimeStamp("",ToTime("2009-03-31","12:22")));
}
}