应急rpc接口

songhuangfeng123

2022-08-08 89f2ff263823f56f2de014a77cf6d4f26c308247

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package com.gkhy.safePlatform.emergency.utils;
 
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
 
public class TimeUtils {
 
    public static String formatDate(Date date){
        SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd");
        String sDate = f.format(date);
        return sDate;
    }
 
    /**
     * 获取某年第一天日期
     * @param year 年份
     * @return Date
     */
    public static String getYearFirst(int year){
        Calendar calendar = Calendar.getInstance();
        calendar.clear();
        calendar.set(Calendar.YEAR, year);
        Date currYearFirst = calendar.getTime();
        return formatDate(currYearFirst);
    }
 
    /**
     * 获取某年最后一天日期
     * @param year 年份
     * @return Date
     */
    public static String getYearLast(int year){
        Calendar calendar = Calendar.getInstance();
        calendar.clear();
        calendar.set(Calendar.YEAR, year);
        calendar.roll(Calendar.DAY_OF_YEAR, -1);
        Date currYearLast = calendar.getTime();
 
        return formatDate(currYearLast);
    }
 
    /**
     * 获取某月第一天日期
     * @param month 年份
     * @return Date
     */
    public static String getMonthFirst(int year ,int month){
        Calendar calendar = Calendar.getInstance();
        calendar.clear();
        calendar.set(Calendar.YEAR, year);
        calendar.set(Calendar.MONTH, month);
        Date currYearFirst = calendar.getTime();
        return formatDate(currYearFirst);
    }
 
    /**
     * 获取某月最后一天日期
     * @param month 年份
     * @return Date
     */
    public static String getMonthLast(int year ,int month){
        Calendar calendar = Calendar.getInstance();
        calendar.clear();
        calendar.set(Calendar.YEAR, year);
        calendar.set(Calendar.MONTH, month);
        calendar.roll(Calendar.DAY_OF_MONTH, -1);
        Date currYearLast = calendar.getTime();
 
        return formatDate(currYearLast);
    }
 
 
    public static void main(String[] args) {
        Calendar date = Calendar.getInstance();
        int year = date.get(Calendar.YEAR);
        int month = date.get(Calendar.MONTH);
        System.out.println(getMonthLast(year,month));
    }
}