/**
* @param userIdList 用户id的集合
* @throws ActiveRecordException
* @return 返回一个最少的任务数的用户ID
*/
public String getLeastTask( List<Record> userIdList) throws ActiveRecordException {
String userId =null;
// 定义一个Map
Map<String ,Integer> map = Maps.newTreeMap();
// 获取用户的ID 便利
for (int i = 0; i < userIdList.size(); i++) {
userId=userIdList.get(i).getStr("userId");
// 查询里面最少任务的人
Record UserTaskCount=this.getUserTaskCountList(userId);
// 获取用户的id
String user= UserTaskCount.getStr("userId");
//获取用户的任务的计数
int taskCount=UserTaskCount.getLong("num").intValue();
map.put(user,taskCount);
}
//将Map转为List ,进行排序
List<Map.Entry<String, Integer>> list = new ArrayList<>(map.entrySet());
Collections.sort(list,((o1, o2) -> o2.getValue().compareTo(o1.getValue())));
// 最少人员的userId
String mixUserId=list.get(list.size()-1).getKey();
return mixUserId;
}
//测试
public static void main(String[] args) {
Map<String,Integer> map = Maps.newTreeMap();
map.put("sssss",-111111111);
map.put("ss",-111111111);
map.put("yy",0);
map.put("lx",5);
map.put("fyx",2);
map.put("ztt",3);
map.put("zzy",10);
List<Map.Entry<String,Integer>> list = new ArrayList<>(map.entrySet());
Collections.sort(list,((o1, o2) -> o2.getValue().compareTo(o1.getValue())));
System.out.println(list.get(list.size()-1).getValue());
System.out.println(list.get(list.size()-1).getKey());
}