把List数据截取一下，方便数据库的插入

import java.util.ArrayList;
import java.util.List;

/**
 * 截取list
 * @param 
 
  
 */
public class CollectionUtil
  
    { public List
   
    > splitAry(List
    
      ary, int subSize) { int count = ary.size() % subSize == 0 ? ary.size() / subSize : ary.size() / subSize + 1; List
     
      > subAryList = new ArrayList
      
       >(); for (int i = 0; i < count; i++) { int index = i * subSize; List
       
         list = new ArrayList
        
         (); int j = 0; while (j < subSize && index < ary.size()) { list.add(ary.get(index++)); j++; } subAryList.add(list); } return subAryList; } }