两个时间相比，只精确到天以上，忽略时分秒

r囧r小猫 2022-06-15 04:26 134阅读 0赞

package com.business;
    
    import java.util.Calendar;
    import java.util.Date;
    import java.util.GregorianCalendar;
    import java.util.List;
    
    import org.apache.commons.lang3.StringUtils;
    import org.apache.commons.lang3.time.DateUtils;
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.test.context.ContextConfiguration;
    import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
    
    import com.google.common.collect.Lists;
    
    @RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration(locations= "classpath:spring/applicationContext.xml")
    public class DateUtilTest {
        
        public static void main(String[] args) {
            System.out.println("************************************************");
            System.out.println("************************************************");
            List<Long> ids = Lists.newArrayList(12L,123L,23L,432L,235L,235L);
            String itemIds = StringUtils.join(ids.toArray(), ",");
            System.out.println(itemIds);
            System.out.println("************************************************");
            System.out.println("************************************************");
        }
    
        @Test
        public void getSomeDateTest(){
            //截去一个时间的时分秒
            Date t = new Date();
            Date tt = DateUtils.truncate(t1, Calendar.DATE);
            //2017-05-24 10:26:50
            System.out.println(t);
            //2017-05-24 00:00:00
            System.out.println(tt);
    
    
            Date t1 = new Date();
            Calendar cal = new GregorianCalendar();
            cal.add(Calendar.DATE, 1);
            cal.add(Calendar.HOUR_OF_DAY, -1);
            Date t2 = cal.getTime();
    
            System.out.println(t1.toString());
            System.out.println(t2.toString());
            //时间比较，忽略时分秒
            System.out.println(DateUtils.truncatedCompareTo(t1, t2, Calendar.DATE));
    
    
        }
    }