BUG修改

bi-server/src/main/java/com/usoftchina/bi/server/utils/ScreenUtil.java

@@ -195,8 +195,8 @@ public class ScreenUtil {
                         + localDate.plusWeeks(0).with(TemporalAdjusters.lastDayOfMonth()).format(DateTimeFormatter.ofPattern("yyyy-MM-dd"));
                 break;
             case "lastmonth" :
-                formatValue = localDate.plusWeeks(-1).with(TemporalAdjusters.firstDayOfMonth()).format(DateTimeFormatter.ofPattern("yyyy-MM-dd")) + ","
-                        + localDate.plusWeeks(-1).with(TemporalAdjusters.lastDayOfMonth()).format(DateTimeFormatter.ofPattern("yyyy-MM-dd"));
+                formatValue = localDate.plusMonths(-1).with(TemporalAdjusters.firstDayOfMonth()).format(DateTimeFormatter.ofPattern("yyyy-MM-dd")) + ","
+                        + localDate.plusMonths(-1).with(TemporalAdjusters.lastDayOfMonth()).format(DateTimeFormatter.ofPattern("yyyy-MM-dd"));
                 break;
             case "quarter" :
                 formatValue = quarterStart(0).format(DateTimeFormatter.ofPattern("yyyy-MM-dd")) + ","