Java如何从字符串里面提取时间

今天接到一个需求,需要从一段带有时间串的字符串里面提取出时间保存。

"PDFS(iZh9k5gurgwcwpZ) 2020-01-01 21:27:36.560 >订单编号:1112233   提交订单成功!   跟踪号:待取跟踪号   内部单号:2342244"

需要从上面数据中心提取出 2020-01-01 21:27:36要怎么操作呢?

我们可以使用正则表达式,对时间串进行提取,并处理,代码如下:

package com.epean.trade.framework.util;

import org.apache.commons.lang.time.DateFormatUtils;
import org.apache.commons.lang.time.DateUtils;

import java.text.ParseException;
import java.util.Date;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Created by chpeng on 2020/08/18 0008.
 */
public class StringDateUtils {

	/**
	 *
	 * @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)) {
					date = formatDate(str);
				}
			}

		}
		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;

	}

	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;
	}

	/**
	 * 格式化
	 * @Title: DateToString
	 * @Description:
	 * @param time
	 * @return:
	 * @throws
	 */
	public static String DateToString(Date time) {
		String newDate = DateFormatUtils.format(time,"yyyy-MM-dd HH:mm:ss");
		return newDate;
	}
	
    public static void main(String[] args) {
		String stringTime = "PDFS(iZh9k5gurgwcwpZ) 2020-01-01 21:27:36.560 >订单编号:1112233   提交订单成功!   跟踪号:待取跟踪号   内部单号:2342244";
		Date date = cutDate(stringTime);
		System.out.println(date);
		System.out.println(DateToString(date));
	}
}

我们测试一下:

2E7BB565-3E27-84C1-B5D3-187CF7A12E56.png

没问题的。

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