java集合分割成等份的小集合：
private <T> List<List<T>> getSubList(List list,int len) {
if(list.size()<len){
return list;
}
List<List<T>> listGroup = new ArrayList<List<T>>();
int listSize = list.size();
//子集合的长度
int toIndex = len;
for (int i = 0; i < list.size(); i += len) {
if (i + len > listSize) {
toIndex = listSize - i;
}
List<T> newList = list.subList(i, i + toIndex);
listGroup.add(newList);
}
return listGroup;
}
eg:
/**
* @return
* @Author
* @Description //TODO 集合分割
* @Date 2019/1/24 16:48
* @Param
*/
private List<List<PushResult>> getSubList(List list, int len) {
List<List<PushResult>> listGroup = new ArrayList<List<PushResult>>();
if (list.size() < len) {
listGroup.add(list);
return listGroup;
} int listSize = list.size();
//子集合的长度
int toIndex = len;
for (int i = 0; i < list.size(); i += len) {
if (i + len > listSize) {
toIndex = listSize - i;
}
List<PushResult> newList = list.subList(i, i + toIndex);
listGroup.add(newList);
}
return listGroup;
}