獲取url路徑的正則

package unit;

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

public class Util {
    // 獲取url路徑的正則
    private static final String URL_REG = "<a .* href=.*[^.exe.*]</a>";
            
    /**
     * 正則表達式獲取鏈接
     * @return
     */
    public String getHref(String str) {
        Pattern pattern = Pattern.compile(URL_REG);
        Matcher matcher = pattern.matcher(str);
        if (matcher.find())
            return matcher.group(0);
        return null;
    }
}