fix:countTodayByCreateTime方法加上null值判断

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昨天 eaa7d1a7ee311b7c7c958e41057f0c3a992deca8

 src/main/java/com/ruoyi/common/utils/ExceptionUtil.java

@@ -18,8 +18,7 @@
    {

        StringWriter sw = new StringWriter();

        e.printStackTrace(new PrintWriter(sw, true));

        String str = sw.toString();

        return str;

        return sw.toString();

    }



    public static String getRootErrorMessage(Exception e)