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上传后台管理系统代码

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2020-05-06 07:40:43 +08:00
parent 8ba73ed42b
commit ca9fd1c2f7
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novel-admin/src/main/java/com/java2nb/common/utils/DateUtils.java Normal file
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package com.java2nb.common.utils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* 日期处理
*/
public class DateUtils {
private final static Logger logger = LoggerFactory.getLogger(DateUtils.class);
public final static String YEAR_PATTERN = "yyyy";
public final static String MONTH_PATTERN = "MM";
public final static String DAY_PATTERN = "dd";
/**
* 时间格式(yyyy-MM-dd)
*/
public final static String DATE_PATTERN = "yyyy-MM-dd";
/**
* 时间格式(yyyy-MM-dd HH:mm:ss)
*/
public final static String DATE_TIME_PATTERN = "yyyy-MM-dd HH:mm:ss";
public static String format(Date date) {
return format(date, DATE_PATTERN);
}
public static String format(Date date, String pattern) {
if (date != null) {
SimpleDateFormat df = new SimpleDateFormat(pattern);
return df.format(date);
}
return null;
}
/**
* 计算距离现在多久，非精确
*
* @param date
* @return
*/
public static String getTimeBefore(Date date) {
Date now = new Date();
long l = now.getTime() - date.getTime();
long day = l / (24 * 60 * 60 * 1000);
long hour = (l / (60 * 60 * 1000) - day * 24);
long min = ((l / (60 * 1000)) - day * 24 * 60 - hour * 60);
long s = (l / 1000 - day * 24 * 60 * 60 - hour * 60 * 60 - min * 60);
String r = "";
if (day > 0) {
r += day + "天";
} else if (hour > 0) {
r += hour + "小时";
} else if (min > 0) {
r += min + "分";
} else if (s > 0) {
r += s + "秒";
}
r += "前";
return r;
}
/**
* 计算距离现在多久，精确
*
* @param date
* @return
*/
public static String getTimeBeforeAccurate(Date date) {
Date now = new Date();
long l = now.getTime() - date.getTime();
long day = l / (24 * 60 * 60 * 1000);
long hour = (l / (60 * 60 * 1000) - day * 24);
long min = ((l / (60 * 1000)) - day * 24 * 60 - hour * 60);
long s = (l / 1000 - day * 24 * 60 * 60 - hour * 60 * 60 - min * 60);
String r = "";
if (day > 0) {
r += day + "天";
}
if (hour > 0) {
r += hour + "小时";
}
if (min > 0) {
r += min + "分";
}
if (s > 0) {
r += s + "秒";
}
r += "前";
return r;
}
}