DateUtil更新

huimv-env-platform/huimv-env-common/src/main/java/com/huimv/env/common/utils/DateUtil.java

@@ -34,6 +34,15 @@ public class DateUtil {
     }
 
     //格式化上月
+    public String getBeforeMonthAndYear(int beforeMonths){
+        Calendar cal = Calendar.getInstance();
+        cal.add(Calendar.MONTH, -beforeMonths);
+        int month = cal.get(Calendar.MONTH) + 1;
+        int year = cal.get(Calendar.YEAR);
+        return year+"-"+month;
+    }
+
+    //格式化上月
     public String getLastMonthAndYear(){
         Calendar cal = Calendar.getInstance();
         cal.add(Calendar.MONTH, -1);