实现联系人前后端界面，实现分页查询

package com.xja.controller; import com.github.pagehelper.PageInfo; import com.xja.bean.Type; import com.xja.service.impl.PeopleServiceImpl; import com.xja.service.impl.TypeServiceImpl; import com.xja.vo.SearchVo; import javax.servlet.*; import javax.servlet.http.*; import javax.servlet.annotation.*; import java.io.IOException; import java.util.List; @WebServlet( "/GetAll") public class GetAll extends HttpServlet { @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("UTF-8"); String name = request.getParameter("name"); String sexDefault = null; String sex = request.getParameter("sex"); if (sex!=null&& !sex.isEmpty()){ sexDefault = sex; } Integer typeIdDefault = null; String typeId = request.getParameter("type"); if (typeId!=null&&!typeId.isEmpty()){ typeIdDefault = Integer.valueOf(typeId); } Integer pageNumDefault = 1; Integer pageSize = 3; String pageNum = request.getParameter("page"); if (pageNum!=null){ pageNumDefault = Integer.valueOf(pageNum); } SearchVo searchVo = new SearchVo(name,sexDefault,typeIdDefault); PeopleServiceImpl peopleService = new PeopleServiceImpl(); PageInfo all = peopleService.getAllByCondition(pageNumDefault, pageSize, searchVo); request.setAttribute("info",all); TypeServiceImpl typeService = new TypeServiceImpl(); List<Type> all1 = typeService.getAll(); request.setAttribute("typeList",all1); request.setAttribute("vo",searchVo); request.getRequestDispatcher("/index.jsp").forward(request,response); } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } }