java正则问题求救

[jinjzk]

String str1 = "<a href='url1'>精选</a><a href='url2'>论坛</a>";
或者
String str2 = "<a href='url1'>精选</a><a href='url2'>论坛</a><a href='url3'>地图</a>";
或者
String str3 = "<a href='url1'>精选</a><a href='url2'>论坛</a><a href='url3'>地图</a><a href='url4'>专家</a>";
用正则去掉最后一个a标签，结果如下：
String str1 = "<a href='url1'>精选</a>论坛";
String str2 = "<a href='url1'>精选</a><a href='url2'>论坛</a>地图";
String str3 = "<a href='url1'>精选</a><a href='url2'>论坛</a><a href='url3'>地图</a>专家";

[木飞骄]

搞定收工。

package cn.seedeed.test;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class TestRegex {
	
	private static Pattern pattern = Pattern.compile("((<a\\s+href='.+?'>.+?</a>)+)<a\\s+href='.+?'>(.+?)</a>");

	public static void main(String[] args) {
		String str1 = "<a href='url1'>精选</a><a href='url2'>论坛</a>";
		String str2 = "<a href='url1'>精选</a><a href='url2'>论坛</a><a href='url3'>地图</a>";
		String str3 = "<a href='url1'>精选</a><a href='url2'>论坛</a><a href='url3'>地图</a><a href='url4'>专家</a>";
		
		System.out.println(replace(str1));
		System.out.println(replace(str2));
		System.out.println(replace(str3));
	}
	
	private static String replace(String str) {
		Matcher matcher = pattern.matcher(str);
		if (matcher.find()) {
			return matcher.group(1) + matcher.group(3);
		}
		return str;
	}

}