package com.boying.common.util;

import java.util.UUID;

public class StringUtil {

    public static boolean isNullOrEmpty(String str) {
        if (null == str || "".equalsIgnoreCase(str.trim())
                || "null".equals(str.trim())) {
            return true;
        }
        return false;
    }

    public static String getUUID() {
        return UUID.randomUUID().toString().replaceAll("-", "");
    }
}