Java中正则表达式

Jakarta ORO一套文本处理工具，能提供perl5.0兼容的正则表达式,AWK-like正则表达式, glob表达式。

还提供替换,分割,文件名过虑等功能

package com.yesky.apachelog.util.regex;

import org.apache.oro.text.regex.MalformedPatternException;
import org.apache.oro.text.regex.MatchResult;
import org.apache.oro.text.regex.Pattern;
import org.apache.oro.text.regex.PatternCompiler;
import org.apache.oro.text.regex.PatternMatcher;
import org.apache.oro.text.regex.Perl5Compiler;
import org.apache.oro.text.regex.Perl5Matcher;

/**
 * 解析字符串： 返回符合记录的一行记录
 * 
 * @author 110
 * 
 */
public class ApacheRegexString {
	/**
	 * 返回符合条件的字符串
	 * 
	 * @param aLineString
	 * @return:返回符合的字符，否则返回null
	 */
	public static String regexString(String aLineString) {
		String regex = "\\s'GET\\s([^']+\\s)";
		PatternCompiler compiler = new Perl5Compiler();
		Pattern pattern = null;
		try {
			pattern = compiler.compile(regex);
		} catch (MalformedPatternException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		PatternMatcher matcher = new Perl5Matcher();
		if (matcher.contains(aLineString, pattern)) {
			MatchResult result = matcher.getMatch();
			return result.group(1);
		}
		return null;

	}
	
	public static void main(String[] args) { 
		
		ApacheRegexString reg=new ApacheRegexString();
		String s="124.135.38.249 - - [19/Nov/2009:17:35:42 +0800] 'GET /1.gif?&574224&613&1 HTTP/1.1' 200 35 'http://movie.yesky.com/movie613.html' 'Mozilla/4.0(compatible; MSIE 6.0; Windows NT 5.1; SV1; QQPinyinSetup 620; TencentTraveler 4.0)'";
		String ss=reg.regexString(s);
		System.out.println(ss);
	}
	
	
	
	 
}

 在这里附上对应的jar包