ConvertHelper.java

package com.jiuqi.mobile.nigo.comeclose.bean;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class ConvertHelper {
	public static final String DATE_FORMAT = "yyyy-MM-dd";
	public static final String DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss";
	public static final String DATE_TIME_FORMAT_HS = "yyyy-MM-dd HH:mm";
	public static final SimpleDateFormat DEFAULT_DATE_FORMATTER = new SimpleDateFormat(DATE_FORMAT);
	public static final SimpleDateFormat DEFAULT_DATE_TIME_FORMATTER = new SimpleDateFormat(DATE_TIME_FORMAT);
	public static final SimpleDateFormat DEFAULT_DATE_TIME_FORMATTER_HS = new SimpleDateFormat(DATE_TIME_FORMAT_HS);
	
	public static String dateToString(Date date) {
		if (date == null) 
			return null;
		return DEFAULT_DATE_FORMATTER.format(date);
	}
	
	public static Date stringToDate(String dateStr) {
		if (dateStr == null)
			return null;
		try {
			return DEFAULT_DATE_FORMATTER.parse(dateStr);
		} catch (ParseException e) {
			return null;
		}
	}
	
	public static String dateTimeToStringHS(Date date) {
		if (date == null) 
			return null;
		return DEFAULT_DATE_TIME_FORMATTER_HS.format(date);
	}
	
	public static Date stringToDateHS(String dateStr) {
		if (dateStr == null)
			return null;
		try {
			return DEFAULT_DATE_TIME_FORMATTER_HS.parse(dateStr);
		} catch (ParseException e) {
			return null;
		}
	}
	
	public static String dateTimeToString(Date date) {
		if (date == null) 
			return null;
		return DEFAULT_DATE_TIME_FORMATTER.format(date);
	}
	
	public static Date stringToDateTime(String dateStr) {
		if (dateStr == null)
			return null;
		try {
			return DEFAULT_DATE_TIME_FORMATTER.parse(dateStr);
		} catch (ParseException e) {
			return null;
		}
	}
	
	public static Date longToDate(long milliSecconds) {
		return new Date(milliSecconds);
	}
	
	public static long dateToLong(Date date) {
		if (date == null)
			return 0;
		else
			return date.getTime();
	}
}