因为项目需要对查询返回xml

但是Page对象返回后使用jaxb生成xml，但是Page类的有些属性无法返回，所以对Page类做了小修改

/**
     * 根据pageSize与totalCount计算总页数, 默认值为-1.
     */
    public long getTotalPages() {
        if (totalCount < 0) {
            this.totalPages = -1;
        }

        long count = totalCount / pageSize;
        if (totalCount % pageSize > 0) {
            count++;
        }
       this.totalPages = count;
        return totalPages;
    }


protected int prePage;
    protected int nextPage;
    protected boolean hasPre;
    protected boolean hasNext;
    protected long totalPages;

    public void setPrePage(int prePage) {
        this.prePage = prePage;
    }

    public void setNextPage(int nextPage) {
        this.nextPage = nextPage;
    }

    public void setHasPre(boolean hasPre) {
        this.hasPre = hasPre;
    }

    public void setHasNext(boolean hasNext) {
        this.hasNext = hasNext;
    }

    public void setTotalPages(long totalPages) {
        this.totalPages = totalPages;
    }