importcom.duotin.util.beans.SubListView;importjava.util.ArrayList;importjava.util.Collections;importjava.util.List;/***

* Created by xueshan on 17/1/22.*/

public classCommonBusiLogic {/***將大集合分成多個子集合

*@paramlist

*@paramsubListSize 大小

*@param

*@return

*/

public static List> getSubListBySubListSize(Listlist, Integer subListSize){

List> allList = new ArrayList<>();if(CollectionUtils.isEmpty(list)){returnCollections.emptyList();

}if(list.size()<=subListSize){

allList.add(list);returnallList;

}for(SubListView subListView:getSubListViewList(list.size(), subListSize)){

allList.add(list.subList(subListView.getStartIndex(),subListView.getEndIndex()));

}returnallList;

}private static ListgetSubListViewList(Integer listSize, Integer subListSize){

List subListViewList = new ArrayList<>();

Integer multipleSize=listSize/subListSize;for(int i=0;i

SubListView subListView= newSubListView();

subListView.setStartIndex(i);

subListView.setEndIndex(i+subListSize);

subListView.setSubListSize(subListSize);

subListViewList.add(subListView);

}if(listSize%subListSize>0){

SubListView endSubListView= newSubListView();

endSubListView.setStartIndex(multipleSize*subListSize);

endSubListView.setEndIndex(multipleSize*subListSize+listSize%subListSize);

endSubListView.setSubListSize(subListSize);

subListViewList.add(endSubListView);

}returnsubListViewList;

}

}

總結

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