新增日期工具类

anomaly/src/main/java/com/foreverwin/mesnac/anomaly/utils/DateReportUtils.java

@@ -4,6 +4,11 @@ import org.apache.commons.lang.time.DateUtils;
 
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
+import java.time.temporal.TemporalAdjusters;
 import java.util.*;
 
 /**
@@ -190,5 +195,78 @@ public class DateReportUtils {
         }
     }
 
+    /**
+     * 获取本月剩余天数（除去星期天）
+     * @return
+     */
+    public static Integer getMonthRemainingDays() {
+//        Calendar c = Calendar.getInstance(TimeZone.getTimeZone("GMT+08:OO")); //这是获得东八区时间，也就是北京时间
+//        int day = c.get(Calendar.DAY_OF_MONTH);    //获取当前天数
+//        int last = c.getActualMaximum(c.DAY_OF_MONTH);    //获取本月最大天数
+        Integer result = 0;
+        LocalDate localDate = LocalDate.now();
+        LocalDate lastDay = localDate.with(TemporalAdjusters.lastDayOfMonth());
+        List<Date> dateList = getBetweenDates(localDate2Date(localDate), localDate2Date(lastDay));
+        for (Date date : dateList) {
+            if (!getWeekOfDate(date).equals("星期日")){
+                result += 1;
+            }
+        }
+        return result;
+
+    }
+
+    /**
+     * LocalDate转换成Date
+     * @param localDate
+     * @return
+     */
+    public static Date localDate2Date(LocalDate localDate) {
+        if(null == localDate) {
+            return null;
+        }
+        ZonedDateTime zonedDateTime = localDate.atStartOfDay(ZoneId.systemDefault());
+        return Date.from(zonedDateTime.toInstant());
+    }
+
+    /**
+     * 获取当前日期是星期几<br>
+     *
+     * @param date
+     * @return 当前日期是星期几
+     */
+    public static String getWeekOfDate(Date date) {
+        String[] weekDays = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" };
+        Calendar cal = Calendar.getInstance();
+        cal.setTime(date);
+        int w = cal.get(Calendar.DAY_OF_WEEK) - 1;
+        if (w < 0)
+            w = 0;
+        return weekDays[w];
+    }
+
+    /**
+     * 获取日期List
+     * @param start
+     * @param end
+     * @return
+     */
+    public static List<Date> getBetweenDates(Date start, Date end) {
+        List<Date> result = new ArrayList<Date>();
+        Calendar tempStart = Calendar.getInstance();
+        tempStart.setTime(start);
+        result.add(tempStart.getTime());
+        tempStart.add(Calendar.DAY_OF_YEAR, 1);
+        Calendar tempEnd = Calendar.getInstance();
+        tempEnd.setTime(end);
+        while (tempStart.before(tempEnd)) {
+            result.add(tempStart.getTime());
+            tempStart.add(Calendar.DAY_OF_YEAR, 1);
+        }
+        result.add(tempEnd.getTime());
+        return result;
+    }
+
+
 }