传入日期，返回星期几（日期转化星期）

水深无声 2022-01-23 22:27 1388阅读 0赞

使用

getWeekOfDate("2019-05-31")

![20190531172022905.png][]

工具类GetWeekOfDate

import java.text.DateFormat;
    import java.text.ParseException;
    import java.text.SimpleDateFormat;
    import java.util.Calendar;
    import java.util.Date;
    /**
     * 传入日期，转为星期几
     * @author xi_haibin
     * @date
     */
    public class GetWeekOfDate {
    	
    	public static void main(String[] args) throws Exception {
    		System.out.println(getWeekOfDate("2019-05-31"));
    	}
    	
    	/**
    	 * 传入String类型
    	 * @param date
    	 * @return
    	 * @throws Exception
    	 */
    	public static String getWeekOfDate(String date) throws Exception { 
    		DateFormat format = new SimpleDateFormat("yyyy-MM-dd"); 
    		String[] weekDaysName = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" }; 
    		String[] weekDaysCode = { "0", "1", "2", "3", "4", "5", "6" }; 
    		Calendar calendar = Calendar.getInstance(); 
    		calendar.setTime(format.parse(date)); 
    		int intWeek = calendar.get(Calendar.DAY_OF_WEEK) - 1; 
    		return weekDaysName[intWeek]; 
    	}
    	
    	/**
    	 * 传入date类型
    	 * @param date
    	 * @return
    	 * @throws Exception
    	 */
    	public static String getWeekOfDate(Date date) throws Exception { 
    		String[] weekDaysName = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" }; 
    		String[] weekDaysCode = { "0", "1", "2", "3", "4", "5", "6" }; 
    		Calendar calendar = Calendar.getInstance(); 
    		calendar.setTime(date); 
    		int intWeek = calendar.get(Calendar.DAY_OF_WEEK) - 1; 
    		return weekDaysName[intWeek]; 
    	}
    }

[20190531172022905.png]: /images/20220124/f1e7a655d3d04606830342a4da2cc6da.png