根据当前日期获得最近n周的日期区间优化

scommons/src/main/java/com/xhkjedu/utils/DatesUtil.java

@@ -90,8 +90,11 @@ public class DatesUtil {
         Calendar calendar = Calendar.getInstance();
         calendar.setTime(date);
         int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK) - 1;
+        if (dayOfWeek == 0) {
+            dayOfWeek = 7;
+        }
         int offset = 0 == option ? 1 - dayOfWeek : 7 - dayOfWeek;
-        int amount = 0 == option ? offset - (n - 1  + k) * 7 : offset - k * 7;
+        int amount = 0 == option ? offset - (n - 1 + k) * 7 : offset - k * 7;
         calendar.add(Calendar.DATE, amount);
         return sdf.format(calendar.getTime());
     }