分页助手类

/**   * 分页操作助手类    *   */  public class PagedList   {       protected long count; //数据的总数       protected int last; //最后一页       protected int previous;//上一页       protected int index; //当前页       protected int next; //下一页       protected boolean hasFirst; //是否首页       protected boolean hasLast; //是否最后一页       protected boolean hasNext; //是否有下一页       protected boolean hasPrevious;//是否有上一页       protected List pageList;  //页面显示的页码集       protected List list;  //数据集              /**         * 构造方法，构建一个分页类         *          * @param count 数据总数         * @param size  每页显示多少         * @param index 当前页         * @param list  数据集         * @return        */      public PagedList(long count, int size, int index, List list)       {           this.list = list;           this.count=count;           this.index=index;           if(index < 1)               index = 1;           if(count % (long)size > 0L)               last = (int)(count / (long)size + 1L);           else              last = (int)(count / (long)size);           //如果当前页不是最后一页，           hasNext = hasLast = index < last;           //如果有下一页           if(hasNext)               next = index + 1;           //如果当前页不是第一页，           hasPrevious = hasFirst = index > 1;           //如果有上一页           if(hasPrevious)               previous = index - 1;           //页码集           pageList = new ArrayList();           int start = 0;           int stop = 0;           if(index <= 5)           {               start = 1;               if(last > 10)                   stop = 10;               else                  stop = last;           } else          {               start = index - index % 5;               if(last > start + 10)                   stop = start + 10;               else                  stop = last;           }           for(int i = start; i <= stop; i++)               pageList.add(Integer.valueOf(i));       }         public List getList()       {           return list;       }         public List getPageList()       {           return pageList;       }         public long getCount()       {           return count;       }         public int getPrevious()       {           return previous;       }         public int getNext()       {           return next;       }         public int getIndex()       {           return index;       }         public int getLast()       {           return last;       }         public boolean hasNext()       {           return hasNext;       }         public boolean hasPrevious()       {           return hasPrevious;       }         public boolean hasFirst()       {           return hasFirst;       }         publi     您还没有登录,请您登录后再发表评论