From c3811d01d1929a98a0f34f70ca187d82ee312dbb Mon Sep 17 00:00:00 2001
From: manailin <261030956@qq.com>
Date: 星期三, 03 十一月 2021 17:26:50 +0800
Subject: [PATCH] Merge branch 'test' of http://gitlab.nhys.cdnhxx.com/root/zhihuishequ into test

---
 springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/DateUtils.java |   53 +++++++++++++++++++++++++++++++++++++++++++++++++----
 1 files changed, 49 insertions(+), 4 deletions(-)

diff --git a/springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/DateUtils.java b/springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/DateUtils.java
index d220a6d..6b14d69 100644
--- a/springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/DateUtils.java
+++ b/springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/DateUtils.java
@@ -4,8 +4,10 @@
 import java.text.SimpleDateFormat;
 import java.time.*;
 import java.time.format.DateTimeFormatter;
+import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.Date;
+import java.util.List;
 
 import lombok.extern.slf4j.Slf4j;
 
@@ -23,6 +25,7 @@
     public static DateTimeFormatter format_ymd_String = DateTimeFormatter.ofPattern("yyMMdd");
     public static SimpleDateFormat yyyyMM_format = new SimpleDateFormat("yyyy-MM");
     public static SimpleDateFormat format_yyymmdd = new SimpleDateFormat("yyyyMMdd");
+    public static SimpleDateFormat format_yyyy = new SimpleDateFormat("yyyy");
     private static DateTimeFormatter format_ymdhmssss = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSS");
     private static DateTimeFormatter format_ymds = DateTimeFormatter.ofPattern("yyyyMMdd");
     private static DateTimeFormatter format_yms = DateTimeFormatter.ofPattern("yyyyMM");
@@ -888,10 +891,12 @@
     }
 
     public static void main(String[] args) throws Exception {
-        // Date date= new Date();
-        // Date after = new Date();
-        // System.out.println(getFirstDayOfMonthString());
-        // System.out.println(getDayOfMonthString());
+         Date date= getLastMonthFirst();
+         Date after = getLastMonthEnd();
+         System.out.println(date);
+         System.out.println(after);
+
+
     }
 
     /**
@@ -934,4 +939,44 @@
         Date currYearFirst = calendar.getTime();
         return currYearFirst;
     }
+
+    /**
+     * 获取上月第一天时间
+     * @return  上月第一天时间
+     */
+    public static Date getLastMonthFirst(){
+        // 上月起始
+        Calendar lastMonthFirstDateCal = Calendar.getInstance();
+        lastMonthFirstDateCal.add(Calendar.MONTH,-1);
+        lastMonthFirstDateCal.set(Calendar.DAY_OF_MONTH, 1);
+        String lastMonthFirstTime = yyyyMMdd_format.format(lastMonthFirstDateCal.getTime()) + " 00:00:00";
+        return stringToDateStandard(lastMonthFirstTime);
+    }
+
+    /**
+     * 获取上月最后一天时间
+     * @return  最后一天时间
+     */
+    public static Date getLastMonthEnd(){
+        // 上月末尾
+        Calendar lastMonthEndDateCal = Calendar.getInstance();
+        lastMonthEndDateCal.add(Calendar.MONTH,-1);
+        lastMonthEndDateCal.set(Calendar.DAY_OF_MONTH, lastMonthEndDateCal.getActualMaximum(Calendar.DAY_OF_MONTH));
+        String lastMonthEndTime = yyyyMMdd_format.format(lastMonthEndDateCal.getTime()) + " 23:59:59";
+        return stringToDateStandard(lastMonthEndTime);
+    }
+
+    /**
+     * 获取近20天日期
+     * @return  近20天日期
+     */
+    public static List<Date> getOldDays() {
+        List<Date> dates = new ArrayList<>();
+        Date date = new Date();
+        for (int i = 19; i >= 0; i--) {
+            Date date1 = DateUtils.addDay(date, -i);
+            dates.add(date1);
+        }
+        return dates;
+    }
 }

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