优化接口数据查询

src/main/java/com/mini/mybigscreen/utils/DateUtil.java

@@ -0,0 +1,19 @@
+package com.mini.mybigscreen.utils;
+
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+public class DateUtil {
+
+    private static final DateTimeFormatter DATE_FORMATTER = DateTimeFormatter.ofPattern("yyyyMMdd");
+
+
+    public static String dsValue() {
+        LocalDate currentDate = LocalDate.now();
+        return currentDate.format(DATE_FORMATTER);
+    }
+
+    public static String dsValueDaysAgo(long days) {
+        LocalDate targetDate = LocalDate.now().minusDays(days);
+        return targetDate.format(DATE_FORMATTER);
+    }
+}