From a1a6321c059740de69836bb10fa9459e5b916ab1 Mon Sep 17 00:00:00 2001
From: 罗元桥 <2376770955@qq.com>
Date: 星期三, 16 六月 2021 17:59:49 +0800
Subject: [PATCH] Merge branch 'test_screen' into 'master'

---
 springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/DateUtils.java |   98 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 98 insertions(+), 0 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 596e856..4c6681d 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
@@ -2,6 +2,7 @@
 
 import lombok.extern.slf4j.Slf4j;
 
+import java.text.DateFormat;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.time.*;
@@ -615,14 +616,111 @@
         return newTime;
     }
 
+    public static boolean isValidDate(String str) {
+        boolean convertSuccess=true;
+        SimpleDateFormat format = new SimpleDateFormat("yyyy/MM/dd");
+        try {
+            format.setLenient(false);
+            format.parse(str);
+        } catch (ParseException e) {
+            convertSuccess=false;
+        }
+        return convertSuccess;
+    }
+
+    public static Date toValidDate(String str) {
+        Date date = null;
+        SimpleDateFormat format = new SimpleDateFormat("yyyy/MM/dd");
+        try {
+            format.setLenient(false);
+            date = format.parse(str);
+        } catch (ParseException e) {
+            log.error("党员导入日期格式错误");
+            date = new Date();
+        }
+        return date;
+    }
+
+
+    /**
+     * 将日期对象格式化成yyyy-MM-dd格式的字符串
+     *
+     * @param date         日期对象
+     * @return String
+     */
+    public static String getDateStringYMD(Date date) {
+
+        String dateString = "";
+        if (date != null) {
+            dateString = yyyyMMdd_format.format(date);
+        }
+        return dateString;
+    }
+
+    /**
+     * 获取当前月第一天
+     * @return
+     */
+    public static Date getFirstDayOfMonth() {
+        Calendar cal = Calendar.getInstance();
+        cal.add(Calendar.MONTH,0);
+        int actualMinimum = cal.getActualMinimum(Calendar.DAY_OF_MONTH);
+        cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY),actualMinimum,00,00,00);
+        return cal.getTime();
+    }
+
+    /**
+     * 获取当前年月的第一天时间
+     * @param year  年份
+     * @param month 月份
+     * @return  时间
+     */
+    public static Date getYearMonthStart(Integer year,Integer 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.getMinimum(Calendar.DATE);
+        // 设置日历中月份的最小天数
+        cal.set(Calendar.DAY_OF_MONTH, firstDay);
+        int actualMinimum = cal.getActualMinimum(Calendar.DAY_OF_MONTH);
+        cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY),actualMinimum,00,00,00);
+        return cal.getTime();
+    }
+
+    /**
+     * 获取当前年月的最后一天时间
+     * @param year  年份
+     * @param month 月份
+     * @return  时间
+     */
+    public static Date getYearMonthEnd(Integer year,Integer 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.getMaximum(Calendar.DATE);
+        // 设置日历中月份的最大天数
+        cal.set(Calendar.DAY_OF_MONTH, lastDay);
+        int actualMinimum = cal.getActualMinimum(Calendar.DAY_OF_MONTH);
+        cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY),actualMinimum,00,00,00);
+        return cal.getTime();
+    }
+
 
 
 
 
     public static void main(String[]args)throws Exception{
+        isValidDate("2020/12/4");
 //        Date date= new Date();
 //        Date after = new Date();
 //        System.out.println(calTimeDifference(date,after));
+        System.out.println(getYearMonthStart(2021,2));
 
     }
 }

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