fix(staff): 修复班次重复校验逻辑

buhuazhen

2026-03-20 1e99f2e0b5bfb9182e17037c1b861476a20f8936

 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)