List自定义排序（可多条件）

1：先建需要排序的属性Model

 package com.msqsoft.app.queuing.util;

 public class ListOrderByModel {

     private String queueNumber;

     private Integer status;

     public String getQueueNumber() {
         return queueNumber;
     }

     public void setQueueNumber(String queueNumber) {
         this.queueNumber = queueNumber;
     }

     public Integer getStatus() {
         return status;
     }

     public void setStatus(Integer status) {
         this.status = status;
     }

     public ListOrderByModel(String queueNumber, Integer status){
         this.queueNumber = queueNumber;
         this.status = status;
     }
 }

2：建立排序 Util 定义排序方式 需实现 Comparator

 package com.msqsoft.app.queuing.util;

 import java.util.Comparator;

 public class ListOrderByComparatorModelUtil implements Comparator {

     @Override
     public int compare(Object obj1, Object obj2) {

         ListOrderByModel orderByModel1 = (ListOrderByModel)obj1;
         ListOrderByModel orderByModel2 = (ListOrderByModel)obj2;

         // 先排序status
         if (orderByModel1.getStatus() > orderByModel2.getStatus()) {
             return -1;
         } else if (orderByModel1.getStatus() < orderByModel2.getStatus()) {
             return 1;
         } else {
             // 排序号码
             return orderByModel1.getQueueNumber().compareTo(orderByModel2.getQueueNumber());
         }
     }

 }

3 ： 测试

 package web;

 import java.text.Collator;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.Date;
 import java.util.List;

 import com.msqsoft.app.queuing.util.ListOrderByComparatorModelUtil;
 import com.msqsoft.app.queuing.util.ListOrderByModel;

 public class Test1 {
     @SuppressWarnings("unchecked")
     public static void main(String[] args) throws ParseException {

         List list = new ArrayList();
         list.add(new ListOrderByModel("A002", 0));
         list.add(new ListOrderByModel("A001", 0));
         list.add(new ListOrderByModel("A003", 0));
         list.add(new ListOrderByModel("A006", 6));
         list.add(new ListOrderByModel("A004", 0));
         list.add(new ListOrderByModel("A008", 5));
         list.add(new ListOrderByModel("A005", 0));
         list.add(new ListOrderByModel("A007", 6));

         ListOrderByComparatorModelUtil comparator = new ListOrderByComparatorModelUtil();
         Collections.sort(list, comparator);
         for (int i = 0; i < list.size(); i++) {
             ListOrderByModel listMode = (ListOrderByModel) list.get(i);
             System.out.println(listMode.getStatus() + "," + listMode.getQueueNumber());
         }
     }
 }