From 4f4ae84330bebd465257e013633ff3976bff58d5 Mon Sep 17 00:00:00 2001
From: wanggongfeng <1305282856@qq.com>
Date: Wed, 12 Oct 2022 11:18:40 +0800
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---
 .../commons/tools/utils/YearMonthUtils.java   | 80 +++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 epdc-commons-tools/src/main/java/com/elink/esua/epdc/commons/tools/utils/YearMonthUtils.java

diff --git a/epdc-commons-tools/src/main/java/com/elink/esua/epdc/commons/tools/utils/YearMonthUtils.java b/epdc-commons-tools/src/main/java/com/elink/esua/epdc/commons/tools/utils/YearMonthUtils.java
new file mode 100644
index 0000000..905dae2
--- /dev/null
+++ b/epdc-commons-tools/src/main/java/com/elink/esua/epdc/commons/tools/utils/YearMonthUtils.java
@@ -0,0 +1,80 @@
+/**
+ * Copyright (c) 2018 人人开源 All rights reserved.
+ *
+ * https://www.renren.io
+ *
+ * 版权所有，侵权必究！
+ */
+
+package com.elink.esua.epdc.commons.tools.utils;
+
+import com.elink.esua.epdc.commons.tools.validator.AssertUtils;
+
+import java.text.SimpleDateFormat;
+import java.util.*;
+
+/**
+ * 获取月份，日期数组
+ *
+ * @author Mark sunlightcs@gmail.com
+ * @since 1.0.0
+ */
+public class YearMonthUtils {
+
+    /**
+     * 获取两个时间节点之间的月份列表
+     * @param minDate
+     * @param maxDate
+     * @return
+     */
+    public static List<String> getMonthBetween(String minDate, String maxDate){
+        ArrayList<String> result = new ArrayList<String>();
+        try {
+            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM");//格式化为年月
+
+            Calendar min = Calendar.getInstance();
+            Calendar max = Calendar.getInstance();
+            min.setTime(sdf.parse(minDate));
+            min.set(min.get(Calendar.YEAR), min.get(Calendar.MONTH), 1);
+
+            max.setTime(sdf.parse(maxDate));
+            max.set(max.get(Calendar.YEAR), max.get(Calendar.MONTH), 2);
+
+            Calendar curr = min;
+            while (curr.before(max)) {
+                result.add(sdf.format(curr.getTime()));
+                curr.add(Calendar.MONTH, 1);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        return result;
+    }
+
+    /**
+     *  java 获取 获取某年某月 所有日期（yyyy-mm-dd格式字符串）
+     * @param year
+     * @param month
+     * @return
+     */
+    public static List<String> getMonthFullDay(int year , int month){
+        SimpleDateFormat dateFormatYYYYMMDD = new SimpleDateFormat("yyyy-MM-dd");
+        List<String> fullDayList = new ArrayList<>(32);
+        // 获得当前日期对象
+        Calendar cal = Calendar.getInstance();
+        cal.clear();// 清除信息
+        cal.set(Calendar.YEAR, year);
+        // 1月从0开始
+        cal.set(Calendar.MONTH, month-1 );
+        // 当月1号
+        cal.set(Calendar.DAY_OF_MONTH,1);
+        int count = cal.getActualMaximum(Calendar.DAY_OF_MONTH);
+        for (int j = 1; j <= count ; j++) {
+            fullDayList.add(dateFormatYYYYMMDD.format(cal.getTime()));
+            cal.add(Calendar.DAY_OF_MONTH,1);
+        }
+        return fullDayList;
+    }
+
+}