下面都只是举的例子
用了个模型基类存储分页参数，模型类可以继承此类
public class BaseModel {
private Integer start = 0;
private Integer end = 30;
private Integer size = 30;
private Integer currentPage;
private Integer priviousPage;
private Integer nextPage;
public BaseModel() {
}
public BaseModel(Integer currentPage) {
if (currentPage > 0) {
this.currentPage = currentPage;
this.priviousPage = currentPage - 1;
this.nextPage = currentPage + 1;
this.start = priviousPage * size;
this.end = currentPage * size;
}
}
//省略geter、serter方法
}
dao层：
public class SqlY_wjlxDao extends SqlMapClientDaoSupport implements IY_wjlxDao {
public List getAllY_wjlx(Y_wjlx y_wjlx) {
return this.getSqlMapClientTemplate().queryForList("getAllY_wjlx", y_wjlx);
}
}
控制层：spring控制类实现分页
public class Y_wjlxListAllController extends AbstractController {
Integer currentPage ;
//y_wjlx类继承BaseModel类
Y_wjlx y_wjlx;
@Override
protected ModelAndView handleRequestInternal(HttpServletRequest request,
HttpServletResponse response) throws Exception {
String page = request.getParameter("page");
if (page == null || page.equals("head")) {
currentPage=1;
y_wjlx = new Y_wjlx(currentPage);
request.getSession().setAttribute("currentPage", currentPage);
}
if ("privious".equals(page)) {
currentPage = (Integer) request.getSession().getAttribute("currentPage");
if(currentPage>1) currentPage -= 1;
y_wjlx = new Y_wjlx(currentPage);
request.getSession().setAttribute("currentPage", currentPage);
} else if ("next".equals(page)) {
currentPage = (Integer) request.getSession().getAttribute("currentPage");
currentPage += 1;
y_wjlx = new Y_wjlx(currentPage);
request.getSession().setAttribute("currentPage", currentPage);
}
List list = this.drv_Manager.getAllY_wjlx(y_wjlx);
return new ModelAndView("y_wjlxList", "list", list);
}
private IDrv_Manager drv_Manager;
public void setDrv_Manager(IDrv_Manager drv_Manager) {
this.drv_Manager = drv_Manager;
}
}
jsp页面分页调用
&&
&&
实现了分页，而且前面的数据查询翻页效率很高，但是越到后面越慢（这个好象是没有办法的）
现在的问题是：
1、spring控制类太累赘，好象做了它不该做的事情，翻页控制有没有比较好的办法抽到服务层？
2、翻页也只有：首页、上页、下页；想把最后一页也弄出来，但是担心效率太低，首先要统计数据总数，还有就是三层子查询到了几千万数据后效率就慢了。
有没有比较好的解决办法？