使用正規表達式抽取新聞/BBS網頁發表時間(修改版)

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

/**

 * 分析時間戳

 * 

 * @author xum

 */

public class PublishTimeExtract {

private static final String TIME_REGEX = "((:|>|\\s)?20[0-9]{2}(-|/|\\.|\\u5e74)\\d{1,2}(-|/|\\.|\\u6708)\\d{1,2}(\\u65e5)?\\s?\\d{1,2}(:|\\u65f6)\\d{2}((:|\\u5206)\\d{2})?|(:|>|\\s)?[0-9]{2}\\u5e74\\d{1,2}\\u6708\\d{1,2}(\\u65e5)?\\s?\\d{1,2}(:|\\u65f6)\\d{2}((:|\\u5206)\\d{2})?)";

private static final String TIME_REGEX_1 = "((:|>|\\s)?20[0-9]{2}(-|/|\\.|\\u5e74)\\d{1,2}(-|/|\\.|\\u6708)\\d{1,2}(\\u65e5)?(\\s|&nbsp|<)+|(:|>|\\s)?[0-9]{2}\\u5e74\\d{1,2}\\u6708\\d{1,2}(\\u65e5)?(\\s|&nbsp|<)+)";

private static Pattern pattern = Pattern.compile(TIME_REGEX);

private static Pattern pattern1 = Pattern.compile(TIME_REGEX_1);

private static SimpleDateFormat sdf = new SimpleDateFormat(

"yyyy-MM-dd HH:mm:ss");

private static final String BBS_URL = "(http://bbs/\\..*|http://www\\.tianya\\.cn/[a-zA-Z]*forum/content/.*)";

 * @param content

 * @param url

 * @return

public static String extractDate(String content, String url) {

String con = content

.replaceAll("<!--.*?-->", "");

Matcher m = pattern.matcher(con);

Date now = new Date();

//

if (url.matches(BBS_URL)) {

String dateStr = null;

Date date = null;

while (m.find()) {

dateStr = m.group();

if (dateStr == null)

continue;

dateStr = dateStr.trim().replaceAll(">", "");

if (dateStr.startsWith(":")) {

dateStr = dateStr.replaceFirst(":", "");

}

dateStr = dateStr.replaceAll("\\.|/|\\u5e74|\\u6708", "-")

.replaceAll("\\u65e5", " ");

dateStr = dateStr.replaceAll("\\u65f6|\\u5206", ":");

Date tempDate;

try {

tempDate = sdf.parse(changeString2Date(dateStr));

if (tempDate.after(now)) {

} catch (ParseException e) {

if (date == null) {

date = tempDate;

} else if (tempDate.after(date)) {

if (date != null) {

return date.getTime() + "";

} else {

if (m.find()) {

if (dateStr != null) {

;

return (sdf.parse(changeString2Date(dateStr)).getTime())

+ "";

System.out

.println("=======================>parsedate error: "

+ e.getMessage());

return (new Date()).getTime() + "";

m = pattern1.matcher(con);

dateStr = dateStr.replaceAll("(&nbsp|<)", "");

private static String changeString2Date(String dateStr) {

System.out.println("=======================>Pre Date: " + dateStr);

String date = "";

String[] tempDateStr = dateStr.trim().replaceAll("\\s+", "@")

.replaceAll("(-|:)", "@").split("@");

if (tempDateStr.length > 0) {

String year = tempDateStr[0];

if (year.length() == 2) {

year = "20" + year;

date = date + year + "-";

if (tempDateStr.length > 1) {

date = date

+ (tempDateStr[1].length() > 1 ? tempDateStr[1] : "0"

+ tempDateStr[1]) + "-";

if (tempDateStr.length > 2) {

+ (tempDateStr[2].length() > 1 ? tempDateStr[2] : "0"

+ tempDateStr[2]) + " ";

if (tempDateStr.length > 3) {

+ (tempDateStr[3].length() > 1 ? tempDateStr[3] : "0"

+ tempDateStr[3]) + ":";

date = date + "00:";

if (tempDateStr.length > 4) {

+ (tempDateStr[4].length() > 1 ? tempDateStr[4] : "0"

+ tempDateStr[4]) + ":";

if (tempDateStr.length > 5) {

+ (tempDateStr[5].length() > 1 ? tempDateStr[5] : "0"

+ tempDateStr[5]);

date = date + "00";

System.out.println("=======================> Date: " + date);

return date;

public static void main(String[] args) {

extractDate(

" <td align=\"center\">http://www.rednet.cn  <!--時間開始-->2012/3/2 9:14:36<!--時間結束-->  ",

"");

本文轉自william_xu 51CTO部落格，原文連結：http://blog.51cto.com/williamx/806457，如需轉載請自行聯系原作者