分页通过下拉框选择每页显示的个数

package com.controller; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletRequest; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import com.entity.Page; import com.entity.User; import com.service.UserService; @Controller public class UserController { @Autowired private UserService userService; @RequestMapping("/showAll.action") public String selAll(HttpServletRequest request){ Map<String,Object> map = new HashMap<String, Object>(); map.put("name", null); map.put("sex", null); int totalRows = userService.selTotalRows(map); Page page = new Page(1,10,totalRows); page.setTotalCount(totalRows); map.put("page", page); List<User> userList = userService.selectAll(map); request.setAttribute("userList", userList); request.setAttribute("page", page); return "two.jsp"; } //查询所有用户（带模糊查询、分页） @RequestMapping("/showPage.action") public String selAllLikePage(int pageNum,int pageRows,String name,String sex,HttpServletRequest request){ Map<String,Object> map = new HashMap<String, Object>(); if("".equals(name)){ map.put("name", null); }else{ map.put("name", "%"+name+"%"); } if("".equals(sex)){ map.put("sex", null); }else{ map.put("sex", sex); } int totalRows = userService.selTotalRows(map); Page page = new Page(pageNum,pageRows,totalRows); page.setTotalCount(totalRows); map.put("page", page); List<User> userList = userService.selectAll(map); request.setAttribute("userList",userList); request.setAttribute("page", page); request.setAttribute("name", name); request.setAttribute("sex", sex); return "two.jsp"; } }