diff --git a/pqs-prepare/prepare-api/pom.xml b/pqs-prepare/prepare-api/pom.xml
index fb7a64650..03b87c456 100644
--- a/pqs-prepare/prepare-api/pom.xml
+++ b/pqs-prepare/prepare-api/pom.xml
@@ -8,8 +8,8 @@
         <version>1.0.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-
     <artifactId>prepare-api</artifactId>
+    <name>预处理对外接口模块</name>
 
     <dependencies>
         <dependency>
diff --git a/pqs-prepare/prepare-api/src/main/java/com/njcn/prepare/harmonic/utils/PublicUtil.java b/pqs-prepare/prepare-api/src/main/java/com/njcn/prepare/harmonic/utils/PublicUtil.java
new file mode 100644
index 000000000..bb9436046
--- /dev/null
+++ b/pqs-prepare/prepare-api/src/main/java/com/njcn/prepare/harmonic/utils/PublicUtil.java
@@ -0,0 +1,100 @@
+package com.njcn.prepare.harmonic.utils;
+
+import cn.hutool.core.date.DateTime;
+import cn.hutool.core.date.DateUtil;
+import com.njcn.device.pq.constant.Param;
+
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+
+public class PublicUtil {
+
+    /**
+     * 获取某年某月的第一天
+     */
+    public static String getFisrtDayOfMonth(int year,int month){
+        Calendar cal = Calendar.getInstance();
+        //设置年份
+        cal.set(Calendar.YEAR,year);
+        //设置月份
+        cal.set(Calendar.MONTH, month-1);
+        //获取某月最小天数
+        int firstDay = cal.getActualMinimum(Calendar.DAY_OF_MONTH);
+        //设置日历中月份的最小天数
+        cal.set(Calendar.DAY_OF_MONTH, firstDay);
+        //格式化日期
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
+        return sdf.format(cal.getTime());
+    }
+
+    /**
+     * 获取某月的最后一天
+     */
+    public static String getLastDayOfMonth(int year,int month)
+    {
+        Calendar cal = Calendar.getInstance();
+        //设置年份
+        cal.set(Calendar.YEAR,year);
+        //设置月份
+        cal.set(Calendar.MONTH, month-1);
+        //获取某月最大天数
+        int lastDay = cal.getActualMaximum(Calendar.DAY_OF_MONTH);
+        //设置日历中月份的最大天数
+        cal.set(Calendar.DAY_OF_MONTH, lastDay);
+        //格式化日期
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
+        return sdf.format(cal.getTime());
+    }
+
+    /**
+     * 根据类型获取日期的开始和结束
+     */
+    public static Map<String,DateTime> getBeginAndEndByDate(Integer type, Date date)
+    {
+        Map<String,DateTime> result = new HashMap<>();
+        DateTime startTime = null;
+        DateTime endTime = null;
+        //年 季 月 周 日
+        if (Param.YEAR.equals(type)){
+            startTime = DateUtil.beginOfYear(date);
+            endTime = DateUtil.endOfYear(date);
+        }else if(Param.QUARTER.equals(type)){
+            startTime = DateUtil.beginOfQuarter(date);
+            endTime = DateUtil.endOfQuarter(date);
+        }else if(Param.MONTH.equals(type)){
+            startTime = DateUtil.beginOfMonth(date);
+            endTime = DateUtil.endOfMonth(date);
+        }else if(Param.WEEK.equals(type)){
+            startTime = DateUtil.beginOfWeek(date);
+            endTime = DateUtil.endOfWeek(date);
+        }else if(Param.DAY.equals(type)){
+            startTime = DateUtil.beginOfDay(date);
+            endTime = DateUtil.endOfDay(date);
+        }
+        result.put("startTime",startTime);
+        result.put("endTime",endTime);
+        return result;
+    }
+    /**
+     * @Description:  返回当前季度
+     * @Param: [datadate]时间格式yyyy-MM-dd
+     * @return: java.lang.String
+     * @Author: clam
+     * @Date: 2022/11/30
+     */
+    public static Integer getNowQuarter(String datadate )
+    {
+        Integer temp =Integer.valueOf (datadate.substring (5, 7)) ;
+        return temp%3==0?temp/3:temp/3+1;
+    }
+
+    public static void main(String[] args) {
+//       Integer temp =Integer.valueOf ("2002-08-07".substring (5, 7)) ;
+        System.out.println (111 );
+        System.out.println ( PublicUtil.getNowQuarter ("2002-01-07"));
+    }
+
+}