package com.lst.lc.utils;
import java.net.URLEncoder;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
public class JspUtil {
private static final long ONE_MINUTE = 60000L;
private static final long ONE_HOUR = 3600000L;
private static final long ONE_DAY = 86400000L;
private static final long ONE_WEEK = 604800000L;
private static final String ONE_SECOND_AGO = "秒前";
private static final String ONE_MINUTE_AGO = "分钟前";
private static final String ONE_HOUR_AGO = "小时前";
private static final String ONE_DAY_AGO = "天前";
private static final String ONE_MONTH_AGO = "月前";
private static final String ONE_YEAR_AGO = "年前";
public static String format(Date date) {
long delta = new Date().getTime() - date.getTime();
if (delta < 1L * ONE_MINUTE) {
long seconds = toSeconds(delta);
return (seconds <= 0 ? 1 : seconds) + ONE_SECOND_AGO;
}
if (delta < 45L * ONE_MINUTE) {
long minutes = toMinutes(delta);
return (minutes <= 0 ? 1 : minutes) + ONE_MINUTE_AGO;
}
if (delta < 24L * ONE_HOUR) {
long hours = toHours(delta);
return (hours <= 0 ? 1 : hours) + ONE_HOUR_AGO;
}
if (delta < 168L * ONE_HOUR) {
long days = toDays(delta);
return (days <= 0 ? 1 : days) + ONE_DAY_AGO;
}
else {
return DateUtils.getDateString(date);
}
}
private static long toSeconds(long date) {
return date / 1000L;
}
private static long toMinutes(long date) {
return toSeconds(date) / 60L;
}
private static long toHours(long date) {
return toMinutes(date) / 60L;
}
private static long toDays(long date) {
return toHours(date) / 24L;
}
private static long toMonths(long date) {
return toDays(date) / 30L;
}
private static long toYears(long date) {
return toMonths(date) / 365L;
}
public static String formatForImage(String date) throws Exception{
return format(formatString(getStrTime(date)));
}
/**
* 获取年月日字符串
*
* @return
*/
public static String getDateNum() {
Calendar c = Calendar.getInstance();
String year = Integer.toString(c.get(Calendar.YEAR));
String month = Integer.toString(c.get(Calendar.MONTH));
String date = Integer.toString(c.get(Calendar.DATE));
return year + month + date;
}
/**
* 获取年月日时分秒字符串
*
* @return
*/
public static String getSecNum() {
Calendar c = Calendar.getInstance();
String year = Integer.toString(c.get(Calendar.YEAR));
String month = Integer.toString(c.get(Calendar.MONTH));
String date = Integer.toString(c.get(Calendar.DATE));
String hour = Integer.toString(c.get(Calendar.HOUR));
String minute = Integer.toString(c.get(Calendar.MINUTE));
String second = Integer.toString(c.get(Calendar.SECOND));
return year + month + date + hour + minute + second;
}
/**
* 将时间按照格式进行转换
*
* @param date
* 时间
* @param format
* 时间格式
* @return
*/
public static String formatDate(Date date, String format) {
String result = "";
SimpleDateFormat sdf = new SimpleDateFormat(format);
if (date != null) {
result = sdf.format(date);
}
return result;
}
public static String formatDate(Date date) {
String result = "";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
if (date != null) {
result = sdf.format(date);
}
return result;
}
/**
* 将String时间转换成某时间格式
*
* @param str
* 时间
* @param format
* 格式
* @return
* @throws Exception
*/
public static Date formatString(String str, String format)
throws Exception {
if ((str == null) || (str.equals(""))) {
return null;
}
SimpleDateFormat sdf = new SimpleDateFormat(format);
return sdf.parse(str);
}
public static Date formatString(String str)
throws Exception {
if ((str == null) || (str.equals(""))) {
return null;
}
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return sdf.parse(str);
}
/**
* 获取当前日期时间，24小时制
*
* @return String类型的时间
* @throws Exception
*/
public static String getCurrentDateStr() {
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
return sdf.format(date);
}
public static String getCurrentDateMS() {
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS");
return sdf.format(date);
}
/**
* 获取当前时间的前一天
*
* @return
*/
public static String getPereviousDayMS() {
Date date = new Date();
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.add(Calendar.DAY_OF_MONTH, -1);
date = calendar.getTime();
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS");
return sdf.format(date);
}
/**
* 获取距离今日的时间统计
*/
public static String getLastTime(String lastTime) {
Long lastTimeL = Long.parseLong(lastTime);
Long nowTime = new Date().getTime();
Long range = nowTime - lastTimeL;
int days = (int) (range / 3600 / 1000 / 24);
if (days < 1) {
SimpleDateFormat sdf = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss");
String date = sdf.format(new Date(lastTimeL));
return date;
} else if (days < 30) {
return days + "天前";
} else {
return "很久以前";
}
}
public static String getStrTime(String strTime) {
String year = strTime.substring(0, 4);
String month = strTime.substring(4, 6);
String day = strTime.substring(6, 8);
String hour = strTime.substring(8, 10);
String minute = strTime.substring(10, 12);
String second = strTime.substring(12, 14);
return year + "-" + month + "-" + day + " " + hour + ":"
+ minute + ":" + second;
}
/**
* 保留两位小数
*
* @param str
* @return
*/
public static String cutLength(String str) {
if ((str == null) || (str.length() == 0))
return String.valueOf(0);
char[] ch = str.toCharArray();
for (int i = 0; i < ch.length; i++) {
if (ch[i] == '.') {
if (i + 3 <= ch.length)
return str.substring(0, i + 3);
else
return str.substring(0, ch.length);
}
}
return String.valueOf(0);
}
/**
* 保留4位小数
*
* @param str
* @return
*/
public static String cutLength4(String str) {
if ((str == null) || (str.length() == 0))
return String.valueOf(0);
char[] ch = str.toCharArray();
for (int i = 0; i < ch.length; i++) {
if (ch[i] == '.') {
if (i + 5 <= ch.length)
return str.substring(0, i + 5);
else
return str.substring(0, ch.length);
}
}
return String.valueOf(0);
}
public static String getFileType(String fileName) {
int index = fileName.lastIndexOf(".");
return fileName.substring(index + 1);
}
public static String urlEncode(String url) {
return URLEncoder.encode(url);
}
}