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util
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package com.java110.util;
import java.util.Date;
import java.util.Random;
import java.text.SimpleDateFormat;
import java.text.DateFormat;
/* *
*类名:UtilDate
*功能:自定义订单类
*详细:工具类,可以用作获取系统日期、订单编号等
*版本:3.3
*日期:2012-08-17
*说明:
*以下代码只是为了方便商户测试而提供的样例代码,商户可以根据自己网站的需要,按照技术文档编写,并非一定要使用该代码。
*该代码仅供学习和研究支付宝接口使用,只是提供一个参考。
*/
public class UtilDate {
/** 年月日时分秒(无下划线) yyyyMMddHHmmss */
public static final String dtLong = "yyyyMMddHHmmss";
/** 完整时间 yyyy-MM-dd HH:mm:ss */
public static final String simple = "yyyy-MM-dd HH:mm:ss";
/** 年月日(无下划线) yyyyMMdd */
public static final String dtShort = "yyyyMMdd";
/**
* 返回系统当前时间(精确到毫秒),作为一个唯一的订单编号
* @return
* 以yyyyMMddHHmmss为格式的当前系统时间
*/
public static String getOrderNum(){
Date date=new Date();
DateFormat df=new SimpleDateFormat(dtLong);
return df.format(date);
}
/**
* 获取系统当前日期(精确到毫秒),格式:yyyy-MM-dd HH:mm:ss
* @return
*/
public static String getDateFormatter(){
Date date=new Date();
DateFormat df=new SimpleDateFormat(simple);
return df.format(date);
}
/**
* 获取系统当期年月日(精确到天),格式:yyyyMMdd
* @return
*/
public static String getDate(){
Date date=new Date();
DateFormat df=new SimpleDateFormat(dtShort);
return df.format(date);
}
/**
* 产生随机的三位数
* @return
*/
public static String getThree(){
Random rad=new Random();
return rad.nextInt(1000)+"";
}
}
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