Java常用的一些正则表达式验证

/**
     * 判断Ip地址是否合法
     * @param ip
     * @return
     */
    public static boolean isIp(String ip){
        if(ip == null){
            return false;
        }
        String regex = "(25[0-5]|2[0-4]\\d|1\\d{2}|[1-9]?\\d)(\\.(25[0-5]|2[0-4]\\d|1\\d{2}|[1-9]?\\d)){3}";
        Pattern pattern = Pattern.compile(regex);
        return pattern.matcher(ip).matches();
    }
    
    /**
     * 判断手机号是否合法
     * @return
     */
    public static boolean isMobile(String mobile){
        if(mobile == null){
            return false;
        }
        String regex = "^((13[0-9])|(15[^4,\\D])|(18[0,5-9]))\\d{8}$";
        Pattern pattern = Pattern.compile(regex);
        return pattern.matcher(mobile).matches();
    }
    
    /**
     * 判断固话是否合法
     * @param mobile
     * @return
     */
    public static boolean isTele(String tele){
        String regex = "^((0\\d{2,3})-)(\\d{7,8})(-(\\d{3,}))?$";
        Pattern pattern = Pattern.compile(regex);
        return pattern.matcher(tele).matches();
    }
    
    /**
     * 判断邮箱是否合法
     * @param email
     * @return
     */
    public static boolean isEmail(String email){
        if(email==null){
            return false;
        }
        String regex = "\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*";
        Pattern pattern = Pattern.compile(regex);
        return pattern.matcher(email).matches();
    }
    /**
     * 验证身份证是否合法
     * @return
     */
    public static boolean isCard(String card){
        if(card == null){
            return false;
        }
        String regex = "^\\d{15}$|^\\d{17}(?:\\d|x|X)$";
        Pattern pattern = Pattern.compile(regex);
        return pattern.matcher(card).matches();
    }
    
    /**
     * 判断邮政编码是否合法
     * @param mess
     * @return
     */
    public static boolean isPastCode(String mess){
        if(mess == null){
            return false;
        }
        String regex = "[1-9]\\d{5}(?!\\d)";
        Pattern pattern = Pattern.compile(regex);
        return pattern.matcher(mess).matches();
    }