优化获取当天日期逻辑

framework-base/src/main/java/com/chelvc/framework/base/util/DateUtils.java

@@ -240,7 +240,9 @@ public final class DateUtils {
      * @return 日期实例
      */
     public static Date today() {
-        return date(System.currentTimeMillis());
+        Calendar calendar = Calendar.getInstance();
+        clearTime(calendar);
+        return calendar.getTime();
     }
 
     /**