工具

/**
 * 对手机号码做掩码
 * @param mobile
 * @return
 */
public static String strMobileMask(String mobile){
    StringBuffer buffer= new StringBuffer();
    return buffer.append(mobile.substring(0,4)).append("****").append(mobile.substring(9)).toString();
}

/**
 * 对身份证号码做掩码
 * @param idCarNo
 * @return
 */
public static String strIDCardNoMask(String idCarNo){
    StringBuffer buffer = new StringBuffer();
    return buffer.append(idCarNo.substring(0,6)).append("***********").append(idCarNo.substring(17)).toString();
}

/**
 * 获取Ip地址
 * @param request
 * @return
 */
public static String getIpAdrress(HttpServletRequest request) {
    String ip = request.getHeader("X-Forwarded-For");
    if(StringUtils.isNotEmpty(ip) && !"unKnown".equalsIgnoreCase(ip)){
        //多次反向代理后会有多个ip值，第一个ip才是真实ip
        int index = ip.indexOf(",");
        if(index != -1){
            return ip.substring(0,index);
        }else{
            return ip;
        }
    }
    ip = request.getHeader("X-Real-IP");
    if(StringUtils.isNotEmpty(ip) && !"unKnown".equalsIgnoreCase(ip)){
        return ip;
    }
    return request.getRemoteAddr();
}

/**
 * @Description 判断是多少时间以前，参数格式：date类型2018-12-29 14:35:35
 * @Date 16:19 2018/12/2
 * @Param
 **/
public static String formatBefore(Date date) {
    long delta = new Date().getTime() - date.getTime();
    if (delta < 1L * ONE_MINUTE) {
        long seconds = toSeconds(delta);
        return (seconds <= 0 ? 1 : seconds) + ONE_SECOND_AGO;
    }
    if (delta < 45L * ONE_MINUTE) {
        long minutes = toMinutes(delta);
        return (minutes <= 0 ? 1 : minutes) + ONE_MINUTE_AGO;
    }
    if (delta < 24L * ONE_HOUR) {
        long hours = toHours(delta);
        return (hours <= 0 ? 1 : hours) + ONE_HOUR_AGO;
    }
    if (delta < 48L * ONE_HOUR) {
        return "昨天";
    }
    if (delta < 30L * ONE_DAY) {
        long days = toDays(delta);
        return (days <= 0 ? 1 : days) + ONE_DAY_AGO;
    }
    if (delta < 12L * 4L * ONE_WEEK) {
        long months = toMonths(delta);
        return (months <= 0 ? 1 : months) + ONE_MONTH_AGO;
    } else {
        long years = toYears(delta);
        return (years <= 0 ? 1 : years) + ONE_YEAR_AGO;
    }
}
//可以把20190919103200的数值转换
public static String formatBefore(String  dateStr) {
    return formatBefore(getDate(formatDateByStr(dateStr)));
}
private static long toSeconds(long date) {
    return date / 1000L;
}
private static long toMinutes(long date) {
    return toSeconds(date) / 60L;
}
private static long toHours(long date) {
    return toMinutes(date) / 60L;
}
private static long toDays(long date) {
    return toHours(date) / 24L;
}
private static long toMonths(long date) {
    return toDays(date) / 30L;
}
private static long toYears(long date) {
    return toMonths(date) / 365L;
}

/**判断支付密码是否纯数字**/

String regex = "^[0-9]+$";
System.out.println("123456".matches(regex));

 

/**判断当天是星期几**/
Date date = new Date();
String[] weekDays = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" };
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int w = cal.get(Calendar.DAY_OF_WEEK) - 1;
if (w < 0)
    w = 0;
System.out.println(weekDays[w]);

 

/**判断当天第几周**/
Calendar calendar=Calendar.getInstance();
calendar.setFirstDayOfWeek(Calendar.MONDAY);
calendar.setTime(date);
System.out.println(calendar.get(Calendar.WEEK_OF_YEAR));

 

/**
 * 包含大小写字母及数字且在6-16位
 * 既可以使用纯数字，也可以纯英文，也可以数字英文混合
 *
 * @param str
 * @return
 */
public static boolean isLetterDigit(String str) {
    boolean isDigit = false;//定义一个boolean值，用来表示是否包含数字
    boolean isLetter = false;//定义一个boolean值，用来表示是否包含字母
    for (int i = 0; i < str.length(); i++) {
        if (Character.isDigit(str.charAt(i))) {   //用char包装类中的判断数字的方法判断每一个字符
            isDigit = true;
        }
        if (Character.isLetter(str.charAt(i))) {  //用char包装类中的判断字母的方法判断每一个字符
            isLetter = true;
        }
    }
    String regex = "^[a-zA-Z0-9]{6,16}$";
    if ((isDigit&&str.matches(regex)||(isLetter&&str.matches(regex)))){
        return true;
    }else {
        return false;
    }

}

 

/**
     * 提取括号中内容，忽略括号中的括号
     * @param msg
     * @return
     */
    public static List<String> extractMessage(String msg) {

        List<String> list = new ArrayList<String>();
        int start = 0;
        int startFlag = 0;
        int endFlag = 0;
        for (int i = 0; i < msg.length(); i++) {
            if (msg.charAt(i) == '(') {
                startFlag++;
                if (startFlag == endFlag + 1) {
                    start = i;
                }
            } else if (msg.charAt(i) == ')') {
                endFlag++;
                if (endFlag == startFlag) {
                    list.add(msg.substring(start + 1, i));
                }
            }
        }
        return list;
    }