购物车功能（下）

购物车功能（下）

实现功能

1.购物车界面拦截器
2.购物车查询功能
3.购物车界面功能调试
4.我的购物车及清空购物车
5.购物车删除功能实现
6.购物车更新功能

代码部分

ShopGoodsVo

package com.huangjie.vo;


import java.util.Objects;


public class ShopGoodsVo {
    private String name;
    private float price;
    private int num;
    private float total;

    private String consignee;
    private String phone;
    private String postalcode;
    private String address;
    private int sendType;

    private String pageStr;

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        ShopGoodsVo that = (ShopGoodsVo) o;
        return Float.compare(that.price, price) == 0 &&
                num == that.num &&
                Float.compare(that.total, total) == 0 &&
                Objects.equals(name, that.name);
    }

    @Override
    public int hashCode() {
        return Objects.hash(name, price, num, total);
    }

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public float getPrice() {
		return price;
	}

	public void setPrice(float price) {
		this.price = price;
	}

	public int getNum() {
		return num;
	}

	public void setNum(int num) {
		this.num = num;
	}

	public float getTotal() {
		return total;
	}

	public void setTotal(float total) {
		this.total = total;
	}

	public String getConsignee() {
		return consignee;
	}

	public void setConsignee(String consignee) {
		this.consignee = consignee;
	}

	public String getPhone() {
		return phone;
	}

	public void setPhone(String phone) {
		this.phone = phone;
	}

	public String getPostalcode() {
		return postalcode;
	}

	public void setPostalcode(String postalcode) {
		this.postalcode = postalcode;
	}

	public String getAddress() {
		return address;
	}

	public void setAddress(String address) {
		this.address = address;
	}

	public int getSendType() {
		return sendType;
	}

	public void setSendType(int sendType) {
		this.sendType = sendType;
	}

	public String getPageStr() {
		return pageStr;
	}

	public void setPageStr(String pageStr) {
		this.pageStr = pageStr;
	}

	@Override
	public String toString() {
		return "ShopGoodsVo [name=" + name + ", price=" + price + ", num=" + num + ", total=" + total + ", consignee="
				+ consignee + ", phone=" + phone + ", postalcode=" + postalcode + ", address=" + address + ", sendType="
				+ sendType + ", pageStr=" + pageStr + "]";
	}

	public ShopGoodsVo(String name, float price, int num, float total, String consignee, String phone,
			String postalcode, String address, int sendType, String pageStr) {
		super();
		this.name = name;
		this.price = price;
		this.num = num;
		this.total = total;
		this.consignee = consignee;
		this.phone = phone;
		this.postalcode = postalcode;
		this.address = address;
		this.sendType = sendType;
		this.pageStr = pageStr;
	}

	public ShopGoodsVo() {
		super();
	}
    
    
}

ShoppingAction

package com.huangjie.web;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.huangjie.Dao.OrderDao;
import com.huangjie.Dao.OrderItemDao;
import com.huangjie.entity.Order;
import com.huangjie.entity.OrderItem;
import com.huangjie.entity.User;
import com.huangjie.framework.ActionSupport;
import com.huangjie.framework.ModelDriven;
import com.huangjie.utils.EasyuiResult;
import com.huangjie.utils.ResponseUtil;
import com.huangjie.utils.StringUtils;
import com.huangjie.vo.ShopGoodsVo;


public class ShoppingAction extends ActionSupport implements ModelDriven<ShopGoodsVo> {
    private ShopGoodsVo shopGoodsVo = new ShopGoodsVo();
    private OrderDao orderDao = new OrderDao();
    private OrderItemDao orderItemDao = new OrderItemDao();


    public String createOrder(HttpServletRequest request, HttpServletResponse response) {
        try {
            User currentUser = (User) request.getSession().getAttribute("currentUser");
            long uid = currentUser.getId();
            
            String pageStr = shopGoodsVo.getPageStr();
            float total = 0;
            List<OrderItem> orderItems = new ArrayList<>();
            OrderItem orderItem = null;

            for (String s : pageStr.substring(1).split(",")) {
                orderItem = new OrderItem();
                String[] items = s.split("-");
                orderItem.setBid(items[0]);
                orderItem.setQuantity(Integer.valueOf(items[2]));
                total += Float.valueOf(items[items.length-1]);
                orderItems.add(orderItem);
            }
//            System.out.println(shopGoodsVo);
            Order order = new Order();
            order.setAddress(shopGoodsVo.getAddress());
            order.setConsignee(shopGoodsVo.getConsignee());
            order.setOrderPrice(total);
            order.setOrderState(1);
            order.setPhone(shopGoodsVo.getPhone());
            order.setPostalcode(shopGoodsVo.getPostalcode());
            order.setSendType(shopGoodsVo.getSendType());
            order.setUid(uid);
            int res = this.orderDao.add(order);


            Order newest = this.orderDao.newest();

            for (OrderItem item : orderItems) {
                item.setOid(newest.getId());
                this.orderItemDao.add(item);
            }


            ResponseUtil.writeJson(response, res);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public String del(HttpServletRequest request, HttpServletResponse response) {
        ObjectMapper om = new ObjectMapper();
        try {
            User currentUser = (User) request.getSession().getAttribute("currentUser");
            long uid = currentUser.getId();
            String shopId = "shopId_" + uid;
            String shopVoStr = (String) request.getServletContext().getAttribute(shopId);
            List<ShopGoodsVo> shopGoodsVos = om.readValue(shopVoStr, List.class);
            int index = Integer.valueOf(shopGoodsVo.getPageStr());
            shopGoodsVos.remove(index);
            request.getServletContext().setAttribute(shopId,om.writeValueAsString(shopGoodsVos));
        } catch (Exception e) {
            e.printStackTrace();
        }
        return list(request,response);
    }

    public String clear(HttpServletRequest request, HttpServletResponse response) {
        User currentUser = (User) request.getSession().getAttribute("currentUser");
        long uid = currentUser.getId();
        String shopId = "shopId_" + uid;
        request.getServletContext().removeAttribute(shopId);
        try {
            ResponseUtil.writeJson(response, EasyuiResult.SUCCESS);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public String list(HttpServletRequest request, HttpServletResponse response) {
        ObjectMapper om = new ObjectMapper();

        try {
            User currentUser = (User) request.getSession().getAttribute("currentUser");
            long uid = currentUser.getId();
            String shopId = "shopId_" + uid;
            String shopVoStr = (String) request.getServletContext().getAttribute(shopId);
            List<ShopGoodsVo> shopGoodsVos = null;
            if (StringUtils.isNotBlank(shopVoStr)){
                shopGoodsVos = om.readValue(shopVoStr, List.class);
            }else
            {
                shopGoodsVos = new ArrayList<>();
            }

            request.setAttribute("shopGoodsVos",shopGoodsVos);
        } catch (IOException e) {
            e.printStackTrace();
        }

        return "shoppingCar";
    }

    public String add(HttpServletRequest request, HttpServletResponse response) {
        ObjectMapper om = new ObjectMapper();
        User currentUser = (User) request.getSession().getAttribute("currentUser");
        long uid = currentUser.getId();
        String shopId = "shopId_" + uid;
        String shopVo = (String) request.getServletContext().getAttribute(shopId);
        List<ShopGoodsVo> shopGoodsVos = null;
        try {
            if (StringUtils.isNotBlank(shopVo)) {
                shopGoodsVos = (List<ShopGoodsVo>) om.readValue(shopVo, List.class);
                shopGoodsVos.add(shopGoodsVo);
            } else {
                shopGoodsVos = new ArrayList<>();
                shopGoodsVos.add(shopGoodsVo);
            }
            request.getServletContext().setAttribute(shopId,om.writeValueAsString(shopGoodsVos));
            request.setAttribute("shopGoodsVos",shopGoodsVos);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "shoppingCar";
    }

    public String pay(HttpServletRequest request, HttpServletResponse response) {
        return null;
    }

    @Override
    public ShopGoodsVo getModel() {
        return shopGoodsVo;
    }
}

ShoppingFilter

package com.huangjie.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.huangjie.entity.User;


@WebFilter(filterName = "urlFiter",urlPatterns = "/*")
public class ShoppingFilter implements Filter {

    public ShoppingFilter(){
        super();
    }


    private boolean validateUrl(String uri){
        boolean flag  = true;
        String[] urls = new String[]{"login.jsp","register.jsp","ndex.jsp","static","user.action","category.action","book.action"};
        for (String url : urls) {
            if (uri.contains(url)){
                flag = false;
                break;
            }
        }
        return flag;
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        HttpServletRequest req = (HttpServletRequest) request;
        HttpServletResponse resp = (HttpServletResponse) response;


        String uri = req.getRequestURI();
        if((!"/".equals(uri)) && validateUrl(uri)) {
//            String methodName = req.getParameter("methodName");
//            if ("add".equals(methodName) || "pay".equals(methodName) || "list".equals(methodName)){
                User user = (User) req.getSession().getAttribute("currentUser");
                if(user == null){
                    resp.sendRedirect("/login.jsp");
                    return;
                }
//            }
        }

        chain.doFilter(request, response);
    }

    public void destroy() {

    }

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }
}

mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<config>

    <!--用户相关业务-->
    <action path="/user" type="com.huangjie.web.UserAction">
        <forward name="login" path="/login.jsp" redirect=""/>
        <forward name="register" path="/register.jsp" redirect=""/>
        <forward name="mainTemp" path="/bg/mainTemp.jsp" redirect="false"/>
    </action>

    <!--权限相关业务-->
    <action path="/permission" type="com.huangjie.web.PermissionAction">
    </action>

    <!--书籍相关业务-->
    <action path="/book" type="com.huangjie.web.BookAction">
        <forward name="findBook" path="/fg/findBook.jsp" redirect="false"/>
    </action>

    <!--书籍类别相关业务-->
    <action path="/category" type="com.huangjie.web.CategoryAction">
    </action>

    <!--购物车功能-->
    <action path="/shopping" type="com.huangjie.web.ShoppingAction">
        <forward name="shoppingCar" path="/fg/shoppingCar.jsp" redirect="false"/>
    </action>

    <!--订单功能-->
    <action path="/order" type="com.huangjie.web.OrderAction">
    </action>

    <!--订单项功能-->
    <action path="/orderItem" type="com.huangjie.web.OrderItemAction">
    </action>

    <!--<action path="/bookServlet" type="com.huangjie.web.BookServlet">-->
    <!--<forward name="list" path="/bookList.jsp" redirect="false" />-->
    <!--<forward name="toList" path="bookServlet.action?methodName=list" redirect="true" />-->
    <!--<forward name="toEdit" path="/bookEdit.jsp" redirect="false" />-->
    <!--</action>-->

    <!--<action path="/permission" type="com.java5678.dao.PermissionDao">-->
    <!--<forward name="list" path="/permissionList.jsp" redirect="false" />-->
    <!--<forward name="toList" path="permission.action?methodName=list" redirect="true" />-->
    <!--<forward name="toEdit" path="/permissionEdit.jsp" redirect="false" />-->
    <!--</action>-->

</config>

shoppingCar.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core_rt" %>
<%@ taglib prefix="h" uri="/huangjie" %>
<html>
<head>
    <meta charset="utf-8">
    <title>购物车</title>
    <link href="https://cdn.bootcss.com/twitter-bootstrap/4.4.1/css/bootstrap.css" rel="stylesheet">
    <link rel="stylesheet" type="text/css"
          href="${pageContext.request.contextPath}/static/js/easyui/themes/default/easyui.css">
    <link href="${pageContext.request.contextPath}/static/css/fg.css" rel="stylesheet">
    <script src="https://cdn.bootcss.com/jquery/1.12.4/jquery.js"></script>
    <script type="text/javascript"
            src="${pageContext.request.contextPath}/static/js/easyui/jquery.easyui.min.js"></script>
    <script src="${pageContext.request.contextPath}/static/js/index.js"></script>
</head>
<body class="text-center">
<div class="container">

    <!-- 购物车新增模态框 -->
    <div class="shop-modal modal" tabindex="-1" role="dialog">
        <div class="modal-dialog" role="document">
            <div class="modal-content">
                <div class="modal-header">
                    <h5 class="modal-title">订单信息</h5>
                    <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                        <span aria-hidden="true">&times;</span>
                    </button>
                </div>
                <div class="modal-body">
                    <form class="shop-form" method="post">
                        <div class="row">
                            <!-- <div class="col-md-3">收货人：</div> -->
                            <div class="col-md-12"><input type="text" name="consignee" id="consignee" placeholder="收货人"
                                                          value=""/></div>
                        </div>
                        <div class="row">
                            <!-- <div class="col-md-3">手机号：</div> -->
                            <div class="col-md-12"><input type="text" name="phone" placeholder="收货人手机号" id="phone"
                                                          value=""/></div>
                        </div>
                        <div class="row">
                            <!-- <div class="col-md-3">收货人邮编：</div> -->
                            <div class="col-md-12"><input type="text" name="postalcode" placeholder="收货人邮编"
                                                          id="postalcode" value=""/></div>
                        </div>
                        <div class="row">
                            <!-- <div class="col-md-3">收货地址：</div> -->
                            <div class="col-md-12"><input type="text" name="address" placeholder="收货地址" id="address"
                                                          value=""/></div>
                        </div>
                        <div class="row">
                            <!-- <div class="col-md-3">发货方式</div> -->
                            <div class="col-md-12">
                                <select class="form-control" name="sendType" id="sendType">
                                    <option value="1">平邮</option>
                                    <option value="2">快递</option>
                                </select>
                            </div>
                        </div>
                    </form>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-dismiss="modal">取消</button>
                    <button type="button" class="btn btn-primary order_Create">确定</button>
                </div>
            </div>
        </div>
    </div>

    <div class="row head">
        <div class="col-md-12">
            <i>
                您好，欢迎来到xx网上书店！
            </i>
            <b>
                <a type="button" class="text-primary" href="${pageContext.request.contextPath}/login.jsp">登录</a> |
                <a type="button" class="text-primary" href="${pageContext.request.contextPath}/register.jsp">注册</a> |
                <a type="button" class="text-primary" href="${pageContext.request.contextPath}/shopping.action?methodName=list">我的购物车</a> |
                <a type="button" class="text-primary" href="${pageContext.request.contextPath}/">网站首页</a>
            </b>
        </div>
    </div>
    <!-- 横幅搜索栏 start -->
    <div class="row banner">
        <div class="img1"></div>
        <div class="col-md-12">
            <form class="form" action="${pageContext.request.contextPath}/book.action?methodName=findByName" method="post">
                <%--<input type="hidden" name="methodName" value="findByName">--%>
                <input type="text" name="name" value="" id="input" class="search">
                <input type="submit" class="btn btn-primary" value="查询">
            </form>
        </div>
    </div>
    <!-- 横幅搜索栏 end -->
    <!-- 页面主体内容 start -->
    <div class="row content">
        <div class="col-md-3 float-left c-left">
            <ul class="list-group">
                <li class="list-group-item">书籍分类</li>
            </ul>
        </div>
        <%--${books}--%>
        <div class="col-md-9 float-right c-right">

            <table class="table table-striped">
                <thead class="list-group-item-hover">
                <tr>
                    <%--<th>编号</th>--%>
                    <th>书名</th>
                    <th>单价</th>
                    <th>数量</th>
                    <th>小计</th>
                    <th>操作</th>
                </tr>
                </thead>
                <tbody>
                <c:forEach var="s" items="${shopGoodsVos}" varStatus="index">
                    <tr>
                            <%--<th>${index.index}</th>--%>
                        <th>${s.name}</th>
                        <td>${s.price}</td>
                        <td>
                            <input type="text" class="text-center item_num" name="num" value="${s.num}"/>
                        </td>
                        <td>${s.total}</td>
                        <td>
                                <%--<a href="#" class="text-primary" onclick="shopingDel(${s.name},${s.price},${s.num},${s.total})">删除</a>--%>
                            <a href="${pageContext.request.contextPath}/shopping.action?methodName=del&pageStr=${index.index}"
                               class="text-primary">删除</a>
                            <a href="#" class="text-primary" onclick="sshopUpdate(this);">更新</a>
                        </td>
                    </tr>
                </c:forEach>

                <tr class="bg-white">
                    <td colspan="5" class="text-center">
                        <button type="button" onclick="clearCar();" class="btn bg-orange2">清空购物车</button>
                        <button type="button" class="btn bg-orange2 continue-buy">继续购买</button>
                        <button type="button" class="btn btn-danger car_pay">去结算</button>
                    </td>
                </tr>
                </tbody>
            </table>
            <%--<h:page pageBean="${pageBean}"></h:page>--%>
        </div>
    </div>
    <!-- 页面主体内容 end -->
    <!-- 网站版权 start -->
    <div class="row footer">
        <div class="col-md-12">
            Copyright ©2020 xx教育，版权所有
        </div>
    </div>
    <!-- 网站版权 end -->
</div>
<script type="text/javascript">
    <%--跟新购物车--%>

    function sshopUpdate(ele) {
        // console.log($(ele).parent().parent());
        var $parent = $(ele).parent().parent();
        var $price_td = $parent.children().eq(1);
        var $num_td = $parent.children().eq(2);
        var $total_td = $parent.children().eq(3);

        var price = $price_td.html();
        var num = $num_td.find(":input").val();
        var total = parseInt(num) * parseFloat(price);
        $total_td.html(parseFloat(total).toFixed(1));
    }

    <%--书籍搜索功能--%>

    function searchByType(cid) {
        location.href = '${pageContext.request.contextPath}/book.action?methodName=findByType&cid=' + cid;
    };
    
    
    
    
    
    

    //清除购物车
    function clearCar() {
        $.messager.confirm('确认', '您确认想要清空购物车吗？', function (r) {
            if (r) {
                $.ajax({
                    url: '${pageContext.request.contextPath}/shopping.action?methodName=clear',
                    success: function (data) {
                        location.href = '${pageContext.request.contextPath}/shopping.action?methodName=list';
                    }
                });
            }
        })
    }

    
    
    
    
    
    
    
    $(function () {
        // 给模态框添加关闭事件
        $('.close span,.modal-footer .btn-secondary').click(function () {
            $('.shop-modal').addClass('modal');
        })
        // 购物车结算
        $(".car_pay").click(function () {
            $('.shop-modal').removeClass('modal');
        })

        $(".order_Create").click(function () {
            var consignee = $("#consignee").val();
            var phone = $("#phone").val();
            var postalcode = $("#postalcode").val();
            var address = $("#address").val();
            var sendType = $("#sendType").val();
            var single_tr = "";
            $(".table tr:gt(0)").not(":last").each(function (index, node) {
                console.log(index);
                single_tr = single_tr + "," + $(this).find("th").eq(0).html() + "-" + $(this).find("td").eq(0).html() + "-"
                    + $(this).find("td").eq(1).find("input").val() + "-" + $(this).find("td").eq(2).html();
            })
            console.log(single_tr.substring(1));

            var param = "consignee=" + consignee + "&phone=" + phone + "&postalcode=" + postalcode + "&address=" + address + "&sendType=" + sendType + "&pageStr=" + single_tr;

            $.ajax({
                url: '${pageContext.request.contextPath}/shopping.action?methodName=createOrder',
                type: "POST",
                data: param,
                success: function (data) {
                    var consignee = $("#consignee").val("");
                    var phone = $("#phone").val("");
                    var postalcode = $("#postalcode").val("");
                    var address = $("#address").val("");
                    var sendType = $("#sendType").val("");
                    $('.shop-modal').addClass('modal');
                    $(".table tr:gt(0)").not(":last").remove();
                    $.ajax({
                        url: '${pageContext.request.contextPath}/shopping.action?methodName=clear',
                        success: function (data) {
                            <%--location.href = '${pageContext.request.contextPath}/shopping.action?methodName=list';--%>
                        }
                    });
                }
            });
        });

    })
</script>

</body>
</html>

总结

购物车功能现在已经差不多完成了 今天的内容就是这么多啦！