com.huang.rp.common.utils.TimeUtils.java Source code

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Here is the source code for com.huang.rp.common.utils.TimeUtils.java

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/**
 * Copyright (c) 2005-2012 https://github.com/javahuang
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 */
package com.huang.rp.common.utils;

import java.util.Locale;

import org.joda.time.DateTime;
import org.joda.time.Period;
import org.joda.time.PeriodType;
import org.joda.time.format.DateTimeFormat;

/**
 * 
 * <p/>
 * <p>User: Huang rp
 * <p>Date: 2015421 ?4:24:38
 * <p>Version: 1.0
 */
public class TimeUtils {

    public static final String yyyyMMddFormtter = "yyyy-MM-dd";
    public static final String yyyyMMddFormtterRegex = "\\d{4}-\\d{1,2}-\\d{1,2}";
    public static final String yyyMMddHHmmssFormtter = "yyyy-MM-dd HH:mm:ss";
    public static final String yyyyMMddHHmmssFormtterRegex = "\\d{4}-\\d{1,2}-\\d{1,2}.*\\d{1,2}:\\d{1,2}:\\d{1,2}";

    /**
     * ?DateTime
     * @param dateStr
     * @return
     */
    public static DateTime getDateTime(String dateStr) {
        if (dateStr.matches(yyyyMMddFormtterRegex)) {
            return DateTime.parse(dateStr, DateTimeFormat.forPattern(yyyyMMddFormtter));
        } else if (dateStr.matches(yyyyMMddHHmmssFormtterRegex)) {
            return DateTime.parse(dateStr, DateTimeFormat.forPattern(yyyMMddHHmmssFormtter));
        }
        return null;
    }

    /**
     * ? 
     * @param dt1
     * @param dt2
     * @return
     */
    public static int getDateDiff(DateTime dt1, DateTime dt2) {
        Period p = new Period(dt1, dt2, PeriodType.days());
        return p.getDays();
    }

    /**
     * ?
     * @return
     */
    public static String getYYMMDDStr() {
        DateTime dt = new DateTime();
        StringBuilder sb = new StringBuilder();
        sb.append(dt.getYear()).append(dt.getMonthOfYear()).append(dt.getDayOfMonth());
        return sb.toString();
    }

    //@Test
    public void test() {
        DateTime dt = new DateTime();
        System.out.println(dt.monthOfYear().getAsText(Locale.ENGLISH));
    }
}