實體類

package com.suixingpay.sms.dubbo.provider;

import java.util.Date;

public class TestObject {
    private Date installDate;
    private String name;
    private Integer age;

    public Date getInstallDate() {
        return installDate;
    }

    public void setInstallDate(Date installDate) {
        this
 
.installDate = installDate;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }
}

按倒序排序

private void 
 
sspMerchantSort(List<TestObject> sspMechant) {
   Collections.sort(sspMechant, new Comparator<TestObject>() {
      @Override public int compare(TestObject  o1,TestObject o2) {
         SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
         try {
            Date dt1 = format.parse(o1.getInstallDate());
            Date dt2 = format.parse(o2.getInstallDate());
            if 
 
(dt1.getTime() < dt2.getTime()) {
               return 1;
            } else if (dt1.getTime() > dt2.getTime()) {
               return -1;
            } else {
               return 0;
            }
         } catch (Exception e) {
            LogUtils.error("排列時間報錯"+e);
         }
         return 0;

      }
   });
}

按升序排序

private void sspMerchantSort(List<TestObject> sspMechant) {
   Collections.sort(sspMechant, new Comparator<TestObject>() {
      @Override public int compare(TestObject  o1,TestObject o2) {
         SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
         try {
            Date dt1 = format.parse(o1.getInstallDate());
            Date dt2 = format.parse(o2.getInstallDate());
            if (dt1.getTime() > dt2.getTime()) {
               return 1;
            } else if (dt1.getTime() < dt2.getTime()) {
               return -1;
            } else {
               return 0;
            }
         } catch (Exception e) {
            LogUtils.error("排列時間報錯"+e);
         }
         return 0;

      }
   });
}