ssh mvc ajax 购物车

package com.shop.action; import java.io.IOException; import java.io.PrintWriter; import java.util.HashSet; import java.util.List; import java.util.Set; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionContext; import com.shop.bean.Goods; import com.shop.bean.Gprice; import com.shop.bean.Gtype; import com.shop.bean.Orderinfo; import com.shop.bean.Orderlist; import com.shop.bean.Userinfo; public class ShopAction extends AppActionSupport { private Userinfo user; private Orderlist ol; private int wtd; private String gtid; private String str; private String log; private String gtname; public String getGtname() { return gtname; } public void setGtname(String gtname) { this.gtname = gtname; } public String getLog() { return log; } public void setLog(String log) { this.log = log; } public String getStr() { return str; } public void setStr(String str) { this.str = str; } public String getGtid() { return gtid; } public void setGtid(String gtid) { this.gtid = gtid; } public Userinfo getUser() { return user; } public void setUser(Userinfo user) { this.user = user; } public int getWtd() { return wtd; } public void setWtd(int wtd) { this.wtd = wtd; } private int pn; public int getPn() { return pn; } public void setPn(int pn) { this.pn = pn; } public Orderlist getOl() { return ol; } public void setOl(Orderlist ol) { this.ol = ol; } public String deleteSave() { System.out.println(user.getUid()); manager.deleteSave(ol.getOlid()); return "yes"; } public String changeCar() { ActionContext context = ActionContext.getContext(); Set<Orderlist> car = (Set<Orderlist>) context.getSession().get("car"); for (Orderlist o : car) { if (o.getGoods().getGid().equals(ol.getGoods().getGid())) { o.setSize(ol.getSize()); if (o.getSize() <= 0) { car.remove(o); } break; } } if (car.size() < 1) { context.getSession().remove("car"); } return "car"; } public String putIntoCar() { ActionContext context = ActionContext.getContext(); Set<Orderlist> car = (Set<Orderlist>) context.getSession().get("car"); if (car == null) { car = new HashSet<Orderlist>(); context.getSession().put("car", car); } for (Orderlist o : car) { if (o.getGoods().getGid().equals(ol.getGoods().getGid())) { o.setSize(o.getSize() + 1); wtd=1; return "index"; } } ol.setSize(new Double(1)); Goods g = ol.getGoods(); Set<Gprice> ps = g.getPs(); if (context.getSession().get("user") == null) { for (Gprice gprice : ps) { if (gprice.getId().getUsertype().getUtid() == 1) { ol.setPrice(gprice.getPrice()); } } } else { Userinfo user = (Userinfo) context.getSession().get("user"); for (Gprice gprice : ps) { if (gprice.getId().getUsertype().getUtid().intValue() == user .getUtid().intValue()) { ol.setPrice(gprice.getPrice()); } } } car.add(ol); wtd=1; return "index"; } public String mkOrder() { ActionContext context = ActionContext.getContext(); Userinfo user = (Userinfo) context.getSession().get("user"); Set<Orderlist> car = (Set<Orderlist>) context.getSession().get("car"); String oid = null; if(user==null){ this.log="3"; return "false"; } System.out.println(wtd); if (wtd == 1) { oid = manager.mkOrder(user, car, 1); } else if (wtd == 2) { oid = manager.mkOrder(user, car, 0); } context.getSession().put("oid", oid); context.getSession().remove("car"); return "index"; } /* * 此处为ajax测试部分 */ public List<Gtype> getAllGtype() { return manager.getAllGtype(); } public String ajaxtest() throws IOException { int counter=0; String CONTENT_TYPE = "text/xml; charset=utf-8"; Integer gtid2 = Integer.parseInt(gtid); List<Gtype> gl = manager.getGtypeByPid(gtid2); StringBuffer opts = new StringBuffer("{"); for (Gtype gtype : gl) { if(counter>0){ opts.append(","); } opts.append("'"); opts.append(gtype.getGtid().toString()); opts.append("':'"); opts.append(gtype.getGtname()); opts.append("'"); counter++; } opts.append("}"); HttpServletResponse response=ServletActionContext.getResponse(); response.setContentType(CONTENT_TYPE); PrintWriter out = response.getWriter(); out.print(opts.toString()); return null; } public String search() throws IOException{ HttpServletRequest request=ServletActionContext.getRequest(); HttpServletResponse response=ServletActionContext.getResponse(); request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); response.setHeader("pragma", "no-cache"); response.setHeader("cache-control", "no-cache"); String name=gtname; name=new String(name.getBytes("iso8859-1"),"utf-8"); List<Goods> gl=manager.getGoodsByName(name); StringBuffer f=new StringBuffer(""); if(gl!=null&&gl.size()>0){ f=new StringBuffer("<select id='showbox' multiple=\"multiple\" onchange=\"test(this)\" style='width: 200;height: 200'>"); for (int i = 0; i < gl.size(); i++) { Goods goods=gl.get(i); f.append("<option value='"+goods.getGid()+"'>"+goods.getGname()+"</option>"); } f.append("</select>"); } PrintWriter out = response.getWriter(); out.print(f.toString()); return null; } }