diff --git a/src/main/java/cn/chjyj/szwh/utils/DateUtils.java b/src/main/java/cn/chjyj/szwh/utils/DateUtils.java
index e81845a..52d82b3 100644
--- a/src/main/java/cn/chjyj/szwh/utils/DateUtils.java
+++ b/src/main/java/cn/chjyj/szwh/utils/DateUtils.java
@@ -2,6 +2,7 @@ package cn.chjyj.szwh.utils;
 
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
+import java.util.Calendar;
 import java.util.Date;
 
 /**
@@ -42,4 +43,15 @@ public class DateUtils {
         return res;
     }
 
+    /**
+     * 获取一个月的总天数
+     * @param date
+     * @return
+     */
+    public static int getDaysOfMonth(Date date) {
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTime(date);
+        return calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
+    }
+
 }