易买网项目

package com.easybuy.servlet; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Random; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.alibaba.fastjson.JSON; import com.easybuy.bean.Easybuy_Product_Category; import com.easybuy.bean.Page; import com.easybuy.beanserviceimpl.Easybuy_ProductServiceImpl; import com.easybuy.beanserviceimpl.Easybuy_Product_CategoryServiceImpl; import com.easybuy.ibeanservice.IEasybuy_ProductService; import com.easybuy.ibeanservice.IEasybuy_Product_CategoryService; import com.sun.mail.handlers.message_rfc822; @WebServlet("/CategoryServlet") public class CategoryServlet extends HttpServlet{ @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { doPost(req, resp); } @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException { String reqType = req.getParameter("reqType"); switch (reqType) { case "getParent": getParent(req,resp); break; case "getChild": getChild(req,resp); break; case "queryPage": queryPage(req,resp); break; case "detCategory": detCategory(req,resp); break; case "addCategory": addCategory(req,resp); break; case "updCategory": updCategory(req,resp); break; case "findById": findById(req,resp); break; case "check": check(req,resp); break; case "findAll": findAll(req,resp); break; case "showChild": showChild(req,resp); break; default: break; } } //异步请求,查询子栏目信息 {"index":index,"count":count,"pid":pid} private void showChild(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { IEasybuy_Product_CategoryService iEasybuy_Product_CategoryService=new Easybuy_Product_CategoryServiceImpl(); String index = req.getParameter("index"); String count = req.getParameter("count"); String pid = req.getParameter("pid"); Page page=new Page(); page.setQueryIf2(pid); page.setQueryIf6(count); page.setPageSize(4); page.setCurrPageNo(Integer.parseInt(index)+1); Page findAll = iEasybuy_Product_CategoryService.findAll(page); String json = JSON.toJSONString(findAll); PrintWriter writer = resp.getWriter(); writer.write(json); writer.flush(); writer.close(); } //分页查询 QueryIf2 保存的是根栏目ID , QueryIf1保存的是查询分类条件 , //QueryIf3 保存根栏目页下标 ,QueryIf4 保存 子栏目访问下标 //QueryIf5 保存根栏目历史总页数 QueryIf6 保存子栏目历史总页数 private void findAll(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { IEasybuy_Product_CategoryService iEasybuy_Product_CategoryService=new Easybuy_Product_CategoryServiceImpl(); Page page=new Page(); //设置查询条件分类 page.setQueryIf1("parent"); //获取根栏目历史总页数 String QueryIf5 = req.getParameter("QueryIf5"); //设置根栏目历史总页数 page.setQueryIf5(QueryIf5==null?0:Integer.parseInt(QueryIf5)); //获取根栏目页下标 String QueryIf3 = req.getParameter("QueryIf3"); //设置根栏目页面下标 page.setCurrPageNo(QueryIf3==null?1:Integer.parseInt(QueryIf3)+1); //设置根栏目显示数量 page.setPageSize(2); //获取根栏目分页信息 Page rootInfo = iEasybuy_Product_CategoryService.getRootInfo(page); //根据根栏目ID获取子栏目信息 创建子栏目集合 List<Page> pages=new ArrayList<Page>(); pages.add(rootInfo); for (Object object : rootInfo.getList()) { Easybuy_Product_Category easybuy_Product_Category=(Easybuy_Product_Category) object; //保存根栏目ID page.setQueryIf2(easybuy_Product_Category.getEPC_PARENT_ID()); //设置子栏目显示的数量 page.setPageSize(4); //获取子栏目历史总页数 String QueryIf6 = req.getParameter("QueryIf6"); //设置子栏目历史总页数 page.setQueryIf6(QueryIf6==null?0:Integer.parseInt(QueryIf6)); //获取子栏目页下标 String QueryIf4 = req.getParameter("QueryIf4"); //设置子栏目页面下标 page.setCurrPageNo(QueryIf4==null?1:Integer.parseInt(QueryIf4)+1); //设置查询条件分类 page.setQueryIf1("child"); Page findAll = iEasybuy_Product_CategoryService.findAll(page); //加入子栏目集合 pages.add(findAll); } //为空表示,同步请求 if(req.getParameter("yb")==null){ req.setAttribute("pages", pages); req.setAttribute("statu","ok"); req.getRequestDispatcher("Manager/productClass.jsp").forward(req, resp); }else { //不为空表示,异步请求 String packaging = packaging(pages); PrintWriter writer = resp.getWriter(); writer.write(packaging); writer.flush(); writer.close(); } } //验证名称是否存在 private void check(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { IEasybuy_Product_CategoryService iEasybuy_Product_CategoryService=new Easybuy_Product_CategoryServiceImpl(); String name = req.getParameter("name"); int check = iEasybuy_Product_CategoryService.check(name); PrintWriter writer = resp.getWriter(); if(check>0){ writer.write("{\"result\":\"true\"}"); }else { writer.write("{\"result\":\"false\"}"); } writer.flush(); writer.close(); } //根据类别ID查询类别信息 -QueryIf1 为标识 QueryIf2为修改的栏目名 QueryIf3 为ID QueryIf4 为 跟栏目ID private void findById(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { IEasybuy_Product_CategoryService iEasybuy_Product_CategoryService=new Easybuy_Product_CategoryServiceImpl(); String id=req.getParameter("id"); String pid=req.getParameter("pid"); Page page=new Page(); if(id.equals(pid)){ //修改父级分类,带ID和名称,还有一个标识过去 page.setQueryIf1("parent"); }else { //修改子分类,带ID和和名称,还有一个标识过去 page.setQueryIf1("child"); //查询所有父类信息 List<Easybuy_Product_Category> easybuy_Product_Categories = iEasybuy_Product_CategoryService.getParent(); page.setList((List)easybuy_Product_Categories); } Easybuy_Product_Category easybuy_Product_Category = iEasybuy_Product_CategoryService.findById(Integer.parseInt(id)); page.setQueryIf2(easybuy_Product_Category.getEPC_NAME()); page.setQueryIf3(easybuy_Product_Category.getEPC_ID()); page.setQueryIf4(easybuy_Product_Category.getEPC_PARENT_ID()); req.getSession().setAttribute("Categorypage", page);//该对象在修改成功后将移除 resp.sendRedirect("http://localhost:8080/easybuy/Manager/productClass-modify.jsp"); } //添加类别信息 private void addCategory(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { IEasybuy_Product_CategoryService iEasybuy_Product_CategoryService=new Easybuy_Product_CategoryServiceImpl(); String parentId = req.getParameter("parentId");//0请选择 1根栏目 2子栏目 Easybuy_Product_Category easybuy_Product_Category=new Easybuy_Product_Category(); String className = req.getParameter("className");//类名 easybuy_Product_Category.setEPC_NAME(className); if(parentId.equals("1")){ int parid=createId(); easybuy_Product_Category.setEPC_ID(parid); easybuy_Product_Category.setEPC_PARENT_ID(parid); }else if (parentId.equals("2")) { String childID = req.getParameter("childID");//父级分类ID int c