上代码:

　　

import java.util.ArrayList;import java.util.List;public class JayCommonUtil {    /**     * 按指定大小，分隔集合，将集合按规定个数分为n个部分     *      * @param list     * @param len     * @return     */    public static List
     
      
       > splitList(List
       
         list, int len) {        if (list == null || list.size() == 0 || len < 1) {            return null;        }        List
        
         
          > result = new ArrayList
          
           
            >(); int size = list.size(); int count = (size + len - 1) / len; for (int i = 0; i < count; i++) { List
            
              subList = list.subList(i * len, ((i + 1) * len > size ? size : len * (i + 1))); result.add(subList); } return result; }}