判断一个字符串中是否含有中文

    public static boolean isContainsChinese(String str)
    {
        String regEx = "[\u4e00-\u9fa5]";
        Pattern pat = Pattern.compile(regEx);

        Matcher matcher = pat.matcher(str);
        boolean flg = false;
        if (matcher.find())
        {
            flg = true;
        }
        return flg;
    }

    public static boolean isChinese(String str) {
        boolean flag = false;
        if (null == str || str.trim().length() == 0) {
            return flag;
        }
        String regex = "^[\u4e00-\u9fa5]*$";
        flag = str.matches(regex.trim());
        return flag;
    }