功能： 1、日期和字符串格式转换 2、从字符串文本中解析出正确时间。
工具类代码如下，复制粘贴即用！：
package com.topcom.cms.yuqing.utils; import org.apache.commons.lang.StringUtils; import org.apache.commons.lang3.time.DateUtils; import org.junit.Test; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.regex.Matcher; import java.util.regex.Pattern; public class DateFormatUtil { /** * * @Title: longToString * @Description:把13位的毫秒值转化为String类型格式化的时间格式 * @param time * @return: * @throws */ public static String longToString(long time) { Date date = new Date(time); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String newDate = sdf.format(date); return newDate; } /** * * @Title: DateToString * @Description: * @param time * @return: * @throws */ public static String DateToString(Date time) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String newDate = sdf.format(time); return newDate; } public static String DateToString(Date time, String formatter) { SimpleDateFormat sdf = new SimpleDateFormat(formatter); String newDate = sdf.format(time); return newDate; } /** * * @Title: parseDate * @Description: 把String解析格式的时间转化为date * @param stringTime * @return: * @throws */ public static Date parseDate(String stringTime) { Date date = null; if (StringUtils.isNotBlank(stringTime)) { String[] pattern = new String[] { "yyyy年MM月dd日", "yyyy年MM月dd", "yyyy-MM", "yyyy年MM月dd日", "yyyyMM", "yyyy/MM", "yyyyMMdd", "yyyy-MM-dd", "yyyy/MM/dd", "yyyyMMddHHmmss", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy/MM/dd HH:mm:ss", "MM月dd日", "MM月dd", "MM", "MM月dd日", "MM", "MMdd", "MM-dd", "/MM/dd", "MMddHHmmss", "MM-dd HH:mm:ss", "MM-dd HH:mm", "MM/dd HH:mm:ss", }; try { date = DateUtils.parseDate(stringTime, pattern); } catch (ParseException e) { e.printStackTrace(); } } return date; } /** * * @Description: 把String格式的时间转化为date * @param stringTime * @return: * @throws */ public static Date formatDate(String stringTime) { Date date = null; if (StringUtils.isNotBlank(stringTime)) { String[] pattern = new String[] { "yyyy年MM月dd日HH时mm分ss秒", "yyyy年MM月dd日 HH时mm分ss秒", "yyyy年MM月dd日HH时mm分", "yyyy年MM月dd日 HH时mm分", "yyyy年MM月dd日 HH时", "yyyy年MM月dd日HH时", "yyyy年MM月dd日", "yyyy年MM月dd日HH:mm:ss", "yyyy年MM月dd日 HH:mm:ss", "yyyy年MM月dd日HH:mm", "yyyy年MM月dd日 HH:mm", "yyyy年MM月dd日 HH", "yyyy年MM月dd日HH", "yyyy-MM-dd HH时mm分ss秒", "yyyy-MM-dd HH时mm分", "yyyy-MM-dd HH时", "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM-dd HH", "yyyy/MM/dd HH时mm分ss秒", "yyyy/MM/dd HH时mm分", "yyyy/MM/dd HH时", "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM/dd HH", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM.dd HH", "yyyy.MM.dd", "yyyyMMdd", }; try { date = DateUtils.parseDate(stringTime, pattern); } catch (ParseException e) { e.printStackTrace(); } } return date; } /** * * @Description: 从字符串中截取出正确的时间 * @param stringTime * @return: * @throws */ public static Date cutDate(String stringTime) { String regs[] = { "\\d{4}年\\d{2}月\\d{2}日\\s\\d{2}时\\d{2}分\\d{2}秒", "\\d{4}年\\d{2}月\\d{2}日\\s\\d{1}时\\d{2}分\\d{2}秒", "\\d{4}年\\d{1}月\\d{2}日\\s\\d{1}时\\d{2}分\\d{2}秒", "\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}时\\d{2}分\\d{2}秒", "\\d{4}年\\d{2}月\\d{2}日\\d{2}时\\d{2}分\\d{2}秒", "\\d{4}年\\d{2}月\\d{2}日\\s\\d{2}时\\d{2}分", "\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}时\\d{2}分", "\\d{4}年\\d{1}月\\d{2}日\\s\\d{1}时\\d{2}分", "\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}时\\d{2}分", "\\d{4}年\\d{2}月\\d{2}日\\d{2}时\\d{2}分", "\\d{4}年\\d{2}月\\d{2}日\\s\\d{2}时", "\\d{4}年\\d{2}月\\d{2}日\\s\\d{1}时", "\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}时", "\\d{4}年\\d{1}月\\d{2}日\\s\\d{1}时", "\\d{4}年\\d{2}月\\d{2}日\\d{2}时", "\\d{4}年\\d{2}月\\d{2}日", "\\d{4}年\\d{2}月\\d{1}日", "\\d{4}年\\d{1}月\\d{2}日", "\\d{4}年\\d{1}月\\d{1}日", "\\d{4}年\\d{2}月\\d{2}日\\s\\d{2}:\\d{2}:\\d{2}", "\\d{4}年\\d{2}月\\d{2}日\\s\\d{2}:\\d{1}:\\d{2}", "\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}:\\d{1}:\\d{2}", "\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}:\\d{2}:\\d{2}", "\\d{4}年\\d{2}月\\d{2}日\\d{2}:\\d{2}:\\d{2}", "\\d{4}年\\d{2}月\\d{2}日\\s\\d{2}:\\d{2}", "\\d{4}年\\d{2}月\\d{2}日\\s\\d{1}:\\d{2}", "\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}:\\d{2}", "\\d{4}年\\d{1}月\\d{2}日\\s\\d{1}:\\d{2}", "\\d{4}年\\d{2}月\\d{2}日\\d{2}:\\d{2}", "\\d{4}年\\d{2}月\\d{2}日\\s\\d{2}", "\\d{4}年\\d{2}月\\d{2}日\\s\\d{1}", "\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}", "\\d{4}年\\d{1}月\\d{2}日\\s\\d{1}", "\\d{4}年\\d{2}月\\d{2}日\\d{2}", "\\d{4}-\\d{2}-\\d{2}\\s\\d{2}:\\d{2}:\\d{2}", "\\d{4}-\\d{2}-\\d{2}\\s\\d{1}:\\d{2}:\\d{2}", "\\d{4}-\\d{1}-\\d{2}\\s\\d{2}:\\d{2}:\\d{2}", "\\d{4}-\\d{1}-\\d{2}\\s\\d{1}:\\d{2}:\\d{2}", "\\d{4}-\\d{2}-\\d{2}\\s\\d{2}:\\d{2}", "\\d{4}-\\d{2}-\\d{2}\\s\\d{1}:\\d{2}", "\\d{4}-\\d{2}-\\d{2}\\s\\d{2}", "\\d{4}-\\d{2}-\\d{2}", "\\d{4}-\\d{2}-\\d{1}", "\\d{4}-\\d{1}-\\d{2}", "\\d{4}-\\d{1}-\\d{1}", "\\d{4}-\\d{2}-\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒", "\\d{4}-\\d{2}-\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒", "\\d{4}-\\d{1}-\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒", "\\d{4}-\\d{1}-\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒", "\\d{4}-\\d{1}-\\d{1}\\s\\d{1}时\\d{2}分\\d{2}秒", "\\d{4}-\\d{2}-\\d{2}\\s\\d{2}时\\d{2}分", "\\d{4}-\\d{2}-\\d{2}\\s\\d{1}时\\d{2}分", "\\d{4}-\\d{1}-\\d{2}\\s\\d{2}时\\d{2}分", "\\d{4}-\\d{1}-\\d{2}\\s\\d{1}时\\d{2}分", "\\d{4}-\\d{2}-\\d{2}\\s\\d{2}时", "\\d{4}-\\d{2}-\\d{2}\\s\\d{1}时", "\\d{4}-\\d{1}-\\d{2}\\s\\d{2}时", "\\d{4}-\\d{1}-\\d{2}\\s\\d{1}时", "\\d{4}.\\d{2}.\\d{2}", "\\d{4}.\\d{2}.\\d{1}", "\\d{4}.\\d{1}.\\d{2}", "\\d{4}.\\d{1}.\\d{1}", "\\d{4}.\\d{2}.\\d{2}\\s\\d{2}:\\d{2}:\\d{2}", "\\d{4}.\\d{2}.\\d{2}\\s\\d{1}:\\d{2}:\\d{2}", "\\d{4}.\\d{1}.\\d{2}\\s\\d{2}:\\d{2}:\\d{2}", "\\d{4}.\\d{1}.\\d{2}\\s\\d{1}:\\d{2}:\\d{2}", "\\d{4}.\\d{1}.\\d{1}\\s\\d{1}:\\d{2}:\\d{2}", "\\d{4}.\\d{2}.\\d{2}\\s\\d{2}:\\d{2}", "\\d{4}.\\d{2}.\\d{2}\\s\\d{1}:\\d{2}", "\\d{4}.\\d{1}.\\d{2}\\s\\d{2}:\\d{2}", "\\d{4}.\\d{1}.\\d{2}\\s\\d{1}:\\d{2}", "\\d{4}.\\d{2}.\\d{2}\\s\\d{2}", "\\d{4}.\\d{2}.\\d{2}\\s\\d{1}", "\\d{4}.\\d{1}.\\d{2}\\s\\d{2}", "\\d{4}.\\d{1}.\\d{2}\\s\\d{1}", "\\d{4}/\\d{2}/\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒", "\\d{4}/\\d{2}/\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒", "\\d{4}/\\d{1}/\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒", "\\d{4}/\\d{1}/\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒", "\\d{4}/\\d{2}/\\d{2}\\s\\d{2}时\\d{2}分", "\\d{4}/\\d{2}/\\d{2}\\s\\d{1}时\\d{2}分", "\\d{4}/\\d{1}/\\d{2}\\s\\d{2}时\\d{2}分", "\\d{4}/\\d{1}/\\d{2}\\s\\d{1}时\\d{2}分", "\\d{4}/\\d{2}/\\d{2}\\s\\d{2}时", "\\d{4}/\\d{2}/\\d{2}\\s\\d{1}时", "\\d{4}/\\d{1}/\\d{2}\\s\\d{2}时", "\\d{4}/\\d{1}/\\d{2}\\s\\d{1}时", "\\d{4}/\\d{2}/\\d{2}", "\\d{4}/\\d{2}/\\d{1}", "\\d{4}/\\d{1}/\\d{2}", "\\d{4}/\\d{1}/\\d{1}", "\\d{4}/\\d{2}/\\d{2}\\s\\d{2}:\\d{2}:\\d{2}", "\\d{4}/\\d{2}/\\d{2}\\s\\d{1}:\\d{2}:\\d{2}", "\\d{4}/\\d{1}/\\d{2}\\s\\d{2}:\\d{2}:\\d{2}", "\\d{4}/\\d{1}/\\d{2}\\s\\d{1}:\\d{2}:\\d{2}", "\\d{4}/\\d{2}/\\d{2}\\s\\d{2}:\\d{2}", "\\d{4}/\\d{2}/\\d{2}\\s\\d{1}:\\d{2}", "\\d{4}/\\d{1}/\\d{2}\\s\\d{2}:\\d{2}", "\\d{4}/\\d{1}/\\d{2}\\s\\d{1}:\\d{2}", "\\d{4}/\\d{2}/\\d{2}\\s\\d{2}", "\\d{4}/\\d{2}/\\d{2}\\s\\d{1}", "\\d{4}/\\d{1}/\\d{2}\\s\\d{2}", "\\d{4}/\\d{1}/\\d{2}\\s\\d{1}", "\\d{2}月\\d{2}日\\s\\d{2}时\\d{2}分\\d{2}秒", "\\d{2}月\\d{2}日\\s\\d{1}时\\d{2}分\\d{2}秒", "\\d{1}月\\d{2}日\\s\\d{1}时\\d{2}分\\d{2}秒", "\\d{1}月\\d{2}日\\s\\d{2}时\\d{2}分\\d{2}秒", "\\d{2}月\\d{2}日\\d{2}时\\d{2}分\\d{2}秒", "\\d{2}月\\d{2}日\\s\\d{2}时\\d{2}分", "\\d{1}月\\d{2}日\\s\\d{2}时\\d{2}分", "\\d{1}月\\d{2}日\\s\\d{1}时\\d{2}分", "\\d{1}月\\d{2}日\\s\\d{2}时\\d{2}分", "\\d{2}月\\d{2}日\\d{2}时\\d{2}分", "\\d{2}月\\d{2}日\\s\\d{2}时", "\\d{2}月\\d{2}日\\s\\d{1}时", "\\d{1}月\\d{2}日\\s\\d{2}时", "\\d{1}月\\d{2}日\\s\\d{1}时", "\\d{2}月\\d{2}日\\d{2}时", "\\d{4}年\\d{2}月\\d{2}日", "\\d{2}月\\d{1}日", "\\d{4}年\\d{1}月\\d{2}日", "\\d{1}月\\d{1}日", "\\d{2}月\\d{2}日\\s\\d{2}:\\d{2}:\\d{2}", "\\d{2}月\\d{2}日\\s\\d{2}:\\d{1}:\\d{2}", "\\d{1}月\\d{2}日\\s\\d{2}:\\d{1}:\\d{2}", "\\d{1}月\\d{2}日\\s\\d{2}:\\d{2}:\\d{2}", "\\d{2}月\\d{2}日\\d{2}:\\d{2}:\\d{2}", "\\d{2}月\\d{2}日\\s\\d{2}:\\d{2}", "\\d{2}月\\d{2}日\\s\\d{1}:\\d{2}", "\\d{1}月\\d{2}日\\s\\d{2}:\\d{2}", "\\d{1}月\\d{2}日\\s\\d{1}:\\d{2}", "\\d{2}月\\d{2}日\\d{2}:\\d{2}", "\\d{2}月\\d{2}日\\s\\d{2}", "\\d{2}月\\d{2}日\\s\\d{1}", "\\d{1}月\\d{2}日\\s\\d{2}", "\\d{1}月\\d{2}日\\s\\d{1}", "\\d{2}月\\d{2}日\\d{2}", "\\d{2}-\\d{2}\\s\\d{2}:\\d{2}:\\d{2}", "\\d{2}-\\d{2}\\s\\d{1}:\\d{2}:\\d{2}", "\\d{1}-\\d{2}\\s\\d{2}:\\d{2}:\\d{2}", "\\d{1}-\\d{2}\\s\\d{1}:\\d{2}:\\d{2}", "\\d{2}-\\d{2}\\s\\d{2}:\\d{2}", "\\d{2}-\\d{2}\\s\\d{1}:\\d{2}", "\\d{2}-\\d{2}\\s\\d{2}", "\\d{4}-\\d{2}-\\d{2}", "\\d{2}-\\d{1}", "\\d{4}-\\d{1}-\\d{2}", "\\d{1}-\\d{1}", "\\d{2}-\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒", "\\d{2}-\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒", "\\d{1}-\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒", "\\d{1}-\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒", "\\d{1}-\\d{1}\\s\\d{1}时\\d{2}分\\d{2}秒", "\\d{2}-\\d{2}\\s\\d{2}时\\d{2}分", "\\d{2}-\\d{2}\\s\\d{1}时\\d{2}分", "\\d{1}-\\d{2}\\s\\d{2}时\\d{2}分", "\\d{1}-\\d{2}\\s\\d{1}时\\d{2}分", "\\d{2}-\\d{2}\\s\\d{2}时", "\\d{2}-\\d{2}\\s\\d{1}时", "\\d{1}-\\d{2}\\s\\d{2}时", "\\d{1}-\\d{2}\\s\\d{1}时", "\\d{4}.\\d{2}.\\d{2}", "\\d{2}.\\d{1}", "\\d{4}.\\d{1}.\\d{2}", "\\d{1}.\\d{1}", "\\d{2}.\\d{2}\\s\\d{2}:\\d{2}:\\d{2}", "\\d{2}.\\d{2}\\s\\d{1}:\\d{2}:\\d{2}", "\\d{1}.\\d{2}\\s\\d{2}:\\d{2}:\\d{2}", "\\d{1}.\\d{2}\\s\\d{1}:\\d{2}:\\d{2}", "\\d{1}.\\d{1}\\s\\d{1}:\\d{2}:\\d{2}", "\\d{2}.\\d{2}\\s\\d{2}:\\d{2}", "\\d{2}.\\d{2}\\s\\d{1}:\\d{2}", "\\d{1}.\\d{2}\\s\\d{2}:\\d{2}", "\\d{1}.\\d{2}\\s\\d{1}:\\d{2}", "\\d{2}.\\d{2}\\s\\d{2}", "\\d{2}.\\d{2}\\s\\d{1}", "\\d{1}.\\d{2}\\s\\d{2}", "\\d{1}.\\d{2}\\s\\d{1}", "\\d{2}/\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒", "\\d{2}/\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒", "\\d{1}/\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒", "\\d{1}/\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒", "\\d{2}/\\d{2}\\s\\d{2}时\\d{2}分", "\\d{2}/\\d{2}\\s\\d{1}时\\d{2}分", "\\d{1}/\\d{2}\\s\\d{2}时\\d{2}分", "\\d{1}/\\d{2}\\s\\d{1}时\\d{2}分", "\\d{2}/\\d{2}\\s\\d{2}时", "\\d{2}/\\d{2}\\s\\d{1}时", "\\d{1}/\\d{2}\\s\\d{2}时", "\\d{1}/\\d{2}\\s\\d{1}时", "\\d{2}/\\d{2}", "\\d{2}/\\d{1}", "\\d{1}/\\d{2}", "\\d{1}/\\d{1}", "\\d{2}/\\d{2}\\s\\d{2}:\\d{2}:\\d{2}", "\\d{2}/\\d{2}\\s\\d{1}:\\d{2}:\\d{2}", "\\d{1}/\\d{2}\\s\\d{2}:\\d{2}:\\d{2}", "\\d{1}/\\d{2}\\s\\d{1}:\\d{2}:\\d{2}", "\\d{2}/\\d{2}\\s\\d{2}:\\d{2}", "\\d{2}/\\d{2}\\s\\d{1}:\\d{2}", "\\d{1}/\\d{2}\\s\\d{2}:\\d{2}", "\\d{1}/\\d{2}\\s\\d{1}:\\d{2}", "\\d{2}/\\d{2}\\s\\d{2}", "\\d{2}/\\d{2}\\s\\d{1}", "\\d{1}/\\d{2}\\s\\d{2}", "\\d{1}/\\d{2}\\s\\d{1}", }; String str = ""; Date date = null; for (String reg : regs) { String temp = match(reg, stringTime); if (temp.length() > str.length()) { str = temp; if (!"".equals(str)) { // System.err.println(reg); date = formatDate(str); } } } return date; } public static String match(String reg, String stringTime) { Pattern p = Pattern.compile(reg); Matcher m = p.matcher(stringTime); String s = ""; if (m.find()) { s += m.group(); } return s; } public static String addMonth(String time) { SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd"); Date date = parseDate(time); date = DateUtils.addDays(date, 1); String first = df.format(date); return first; } @Test public void formateTest() { // Date date = // cutDate("来自光明滑坡灾分享873评论2015年12月22日02:09 害现场抢险救援指2015年12月22日挥部的最新消息，截至22日凌晨，接报失联人员已下降为81人。"); // System.err.println(date.getTime()); // System.err.println(new Date(1462352940632l)); String stringTime = "http://www.chinasafety.gov.cn/newpage/Contents/Channel_20135/2011/0921/151059/content_151059.htm"; if (StringUtils.isNotBlank(stringTime)) { String reg = "Channel_\\d{4,6}"; String channelStr = match(reg, stringTime); String channelNo = match("\\d{4,6}", channelStr); System.out.println(channelNo); } } /* * public static void main(String[] args) { // String * str="Thu Sep 08 2011 00:00:00 GMT+0800 "; String * str="Thu May 28 14:45:43 +0800 2015"; SimpleDateFormat sdf=new * SimpleDateFormat("EEE MMM dd HH:mm:ss +0800 yyyy",Locale.ENGLISH); try { * Date date = sdf.parse(str); String time = DateToString(date); * System.err.println(date); System.err.println(time); } catch * (ParseException e) { e.printStackTrace(); } } */ public static void main(String[] args) { // String time = "20131101"; // System.out.println(formatDate(time)); // long timeLong = formatDate(time).getTime(); // System.out.println(timeLong/1000); // System.err.println(new Date(1482328437000l)); // System.err.println(cutDate("2016-10-6 ")); // System.err.println(parseDate("2016年03月01日")); // System.err.println(cutDate("2016/08/15").getTime()); // String targetId = "http://news.sohu.com/20160323/n441639453.shtml"; // if (targetId.contains("/n") && targetId.contains(".shtml")) { // String newsId = targetId.substring(targetId.lastIndexOf("/n") + 2, // targetId.lastIndexOf(".shtml")); // System.err.println(newsId); // } // Date now = new Date(); // long endTime = now.getTime() + 7 * 24 * 60 * 60 * 1000; String stringTime = "2017年01月10日 19点35分在浙江省宁波市慈溪市，赵永江发生一起道路运输行业道路运输事故，造成1人死亡，0人受伤（其中0人重伤）。"; Date date = cutDate(stringTime); System.out.println(date); System.out.println(DateToString(date)); } }