1.0-SNAPSHOT的支持

yzg-util-base/src/main/java/com/yanzuoguang/util/helper/DateHelper.java

@@ -371,7 +371,14 @@ public class DateHelper {
      */
     public static Date getWeekStart(Date date) {
         Calendar cal = getDayCalendarBegin(date);
-        cal.setWeekDate(cal.getWeekYear(), cal.get(Calendar.WEEK_OF_YEAR), 2);
+        // 周日
+        int weekOfYear;
+        if (cal.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY) {
+            weekOfYear = cal.get(Calendar.WEEK_OF_YEAR) - 1;
+        } else {
+            weekOfYear = cal.get(Calendar.WEEK_OF_YEAR);
+        }
+        cal.setWeekDate(cal.getWeekYear(), weekOfYear, 2);
         setDayStart(cal);
         return cal.getTime();
     }
@@ -384,7 +391,14 @@ public class DateHelper {
      */
     public static Date getWeekEnd(Date date) {
         Calendar cal = getDayCalendarBegin(date);
-        cal.setWeekDate(cal.getWeekYear(), cal.get(Calendar.WEEK_OF_YEAR) + 1, 1);
+        // 周日
+        int weekOfYear;
+        if (cal.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY) {
+            weekOfYear = cal.get(Calendar.WEEK_OF_YEAR);
+        } else {
+            weekOfYear = cal.get(Calendar.WEEK_OF_YEAR) + 1;
+        }
+        cal.setWeekDate(cal.getWeekYear(), weekOfYear, 1);
         setDayEnd(cal);
         return cal.getTime();
     }

yzg-util-base/src/test/java/helper/TestDateHelper.java

@@ -21,6 +21,12 @@ public class TestDateHelper {
 
         System.out.println("本周:" + DateHelper.getDateTimeString(DateHelper.getWeekStart(date)));
         System.out.println("本周:" + DateHelper.getDateTimeString(DateHelper.getWeekEnd(date)));
+
+        System.out.println("2022-11-27 周:" + DateHelper.getDateTimeString(DateHelper.getWeekStart(DateHelper.getDateTime("2022-11-27"))));
+        System.out.println("2022-11-27 周:" + DateHelper.getDateTimeString(DateHelper.getWeekEnd(DateHelper.getDateTime("2022-11-27"))));
+        System.out.println("2022-11-26 周:" + DateHelper.getDateTimeString(DateHelper.getWeekStart(DateHelper.getDateTime("2022-11-26"))));
+        System.out.println("2022-11-26 周:" + DateHelper.getDateTimeString(DateHelper.getWeekEnd(DateHelper.getDateTime("2022-11-26"))));
+
         System.out.println("本季度:" + DateHelper.getDateTimeString(DateHelper.getMonth3Start(date)));
         System.out.println("本季度:" + DateHelper.getDateTimeString(DateHelper.getMonth3End(date)));