首页 > 代码库 > vue2购物车ch3-（过滤器使用 单件商品金额计算 全选全不选 总金额计算 删除商品功能）
vue2购物车ch3-（过滤器使用 单件商品金额计算 全选全不选 总金额计算 删除商品功能）
1 index.html
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <!-- Always force latest IE rendering engine or request Chrome Frame --> <meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"> <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no"> <title>购物车</title> <link href="http://www.mamicode.com/css/base2.css" rel="stylesheet" > <link href="http://www.mamicode.com/css/checkout.css" rel="stylesheet" > <link href="http://www.mamicode.com/css/modal.css" rel="stylesheet" > <style> .quentity input{ width: 40px; padding: 5px 10px; text-align: center; } .partContent{ width:100px; height: 50px; } .partContent .left{ width:50px; height:50px; display: table-cell; vertical-align: middle; text-align: center; float:left; } .partContent .right{ width:50px; height: 50px; float:left; cursor:pointer; } </style></head> <body class="checkout"> <div id="app"> <svg style="position: absolute; width: 0; height: 0; overflow: hidden;" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <defs> <symbol id="icon-add" viewBox="0 0 32 32"> <title>add2</title> <path class="path1" d="M15 17h-13.664c-0.554 0-1.002-0.446-1.002-1 0-0.552 0.452-1 1.002-1h13.664v-13.664c0-0.554 0.446-1.002 1-1.002 0.552 0 1 0.452 1 1.002v13.664h13.664c0.554 0 1.002 0.446 1.002 1 0 0.552-0.452 1-1.002 1h-13.664v13.664c0 0.554-0.446 1.002-1 1.002-0.552 0-1-0.452-1-1.002v-13.664z"></path> </symbol> <symbol id="icon-ok" viewBox="0 0 39 32"> <title>ok</title> <path class="path1" d="M14.084 20.656l-7.845-9.282c-1.288-1.482-3.534-1.639-5.016-0.351s-1.639 3.534-0.351 5.016l10.697 12.306c1.451 1.669 4.057 1.623 5.448-0.096l18.168-22.456c1.235-1.527 0.999-3.765-0.528-5.001s-3.765-0.999-5.001 0.528l-15.573 19.337z"></path> </symbol> <symbol id="icon-edit" viewBox="0 0 32 32"> <title>edit</title> <path class="path1" d="M25.599 11.292l-4.892-4.892 3.825-3.825 4.892 4.892-3.825 3.825zM4.732 23.308l3.959 3.959-5.939 1.98 1.98-5.939zM10.666 26.225l-4.892-4.892 13.425-13.425 4.892 4.892-13.425 13.425zM31.687 6.713l-6.4-6.4c-0.417-0.417-1.091-0.417-1.508 0l-20.267 20.267c-0.114 0.115-0.191 0.25-0.242 0.393-0.003 0.009-0.012 0.015-0.015 0.025l-3.2 9.6c-0.128 0.383-0.029 0.806 0.257 1.091 0.203 0.204 0.476 0.313 0.754 0.313 0.112 0 0.227-0.017 0.337-0.054l9.6-3.2c0.011-0.003 0.017-0.013 0.027-0.016 0.142-0.052 0.276-0.128 0.39-0.242l20.267-20.267c0.417-0.416 0.417-1.091 0-1.508v0z"></path> </symbol> <symbol id="icon-del" viewBox="0 0 26 32"> <title>delete</title> <path class="path1" d="M17.723 28c0.543 0 0.984-0.448 0.984-1v-12c0-0.552-0.441-1-0.984-1s-0.985 0.448-0.985 1v12c0 0.552 0.441 1 0.985 1v0zM7.877 28c0.543 0 0.984-0.448 0.984-1v-12c0-0.552-0.441-1-0.984-1s-0.985 0.448-0.985 1v12c0 0.552 0.441 1 0.985 1v0zM12.8 28c0.543 0 0.985-0.448 0.985-1v-12c0-0.552-0.441-1-0.985-1s-0.984 0.448-0.984 1v12c0 0.552 0.441 1 0.984 1v0zM23.631 4h-5.908v-2c0-1.104-0.882-2-1.969-2h-5.908c-1.087 0-1.969 0.896-1.969 2v2h-5.908c-1.087 0-1.969 0.896-1.969 2v2c0 1.104 0.882 2 1.969 2v18c0 2.208 1.765 4 3.939 4h13.784c2.174 0 3.938-1.792 3.938-4v-18c1.087 0 1.969-0.896 1.969-2v-2c0-1.104-0.882-2-1.969-2v0zM9.846 3c0-0.552 0.441-1 0.984-1h3.938c0.544 0 0.985 0.448 0.985 1v1h-5.908v-1zM21.662 28c0 1.104-0.882 2-1.969 2h-13.784c-1.087 0-1.97-0.896-1.97-2v-18h17.723v18zM22.646 8h-19.692c-0.543 0-0.985-0.448-0.985-1s0.441-1 0.985-1h19.692c0.543 0 0.984 0.448 0.984 1s-0.441 1-0.984 1v0z"></path> </symbol> <symbol id="icon-clock" viewBox="0 0 32 32"> <title>clock</title> <path class="path1" d="M29.333 16c0-7.364-5.97-13.333-13.333-13.333s-13.333 5.97-13.333 13.333c0 7.364 5.97 13.333 13.333 13.333s13.333-5.97 13.333-13.333v0 0 0 0 0 0zM0 16c0-8.837 7.163-16 16-16s16 7.163 16 16c0 8.837-7.163 16-16 16s-16-7.163-16-16zM14.667 14.667v1.333h2.667v-10.667h-2.667v9.333zM24 18.667h1.333v-2.667h-10.667v2.667h9.333z"></path> </symbol> </defs> </svg> <div class="container"> <div class="cart"> <div class="checkout-title"> <span>购物车</span> </div> <!-- table --> <div class="item-list-wrap"> <div class="cart-item"> <div class="cart-item-head"> <ul> <li>商品信息</li> <li>商品金额</li> <li>商品数量</li> <li>总金额</li> <li>编辑</li> </ul> </div> <!--购物车商品列表 start--> <ul class="cart-item-list"> <li v-for="(item, key, index) in productList"> <div class="cart-tab-1"> <div class="cart-item-check"> <a href="javascript:void 0" class="item-check-btn" v-bind:class="{‘check‘:item.checked}" @click="selectedProduct(item)"> <svg class="icon icon-ok"><use xlink:href="http://www.mamicode.com/#icon-ok"></use></svg> </a> </div> <div class="cart-item-pic"> <img v-bind:src="http://www.mamicode.com/item.productImage" v-bind:alt="item.productName"> </div> <div class="cart-item-title"> <div class="item-name">{{item.productName}}</div> </div> <div class="item-include"> <dl> <dt>赠送:</dt> <dd v-for="part in item.parts"> <div class="partContent"> <div class="left"> <span>{{part.partsName}}</span> </div> <div class="right"> <img style="width:50px"/> </div> </div> </dd> </dl> </div> </div> <div class="cart-tab-2"> <div class="item-price">{{item.productPrice | formatMoney}}</div> </div> <div class="cart-tab-3"> <div class="item-quantity"> <div class="select-self select-self-open"> <div class="quentity"> <a href="javascript:void 0" @click="changeMoney(item,-1)">-</a> <input type="text" disabled value="http://www.mamicode.com/0" v-model="item.productQuentity"> <a href="javascript:void 0" v-on:click="changeMoney(item,1)">+</a> </div> </div> <div class="item-stock">有货</div> </div> </div> <div class="cart-tab-4"> <div class="item-price-total">{{item.productPrice*item.productQuentity | money(‘元‘)}}</div> </div> <div class="cart-tab-5"> <div class="cart-item-opration"> <a href="javascript:void 0" class="item-edit-btn" @click="delConfirm(item)"> <svg class="icon icon-del"><use xlink:href="http://www.mamicode.com/#icon-del"></use></svg> </a> </div> </div> </li> </ul> <!--购物车商品列表 end--> </div> </div> <!-- footer --> <div class="cart-foot-wrap"> <div class="cart-foot-l"> <div class="item-all-check"> <a href="javascript:void 0"> <span class="item-check-btn" :class="{check: checkAllFlag}" @click="checkAll(true)"> <svg class="icon icon-ok"><use xlink:href="http://www.mamicode.com/#icon-ok"></use></svg> </span> <span>全选</span> </a> </div> <div class="item-all-del"> <a href="javascript:void 0" class="item-del-btn" @click="checkAll(false)"> 取消全选 </a> </div> </div> <div class="cart-foot-r"> <div class="item-total"> 总额: <span class="total-price">{{totalAllPrice | money(‘元‘)}}</span> </div> <div class="next-btn-wrap"> <a href="http://www.mamicode.com/address.html" class="btn btn--red">结账</a> </div> </div> </div> </div> </div> <div class="md-modal modal-msg md-modal-transition" id="showModal" :class="{‘md-show‘:delFlag}"> <div class="md-modal-inner"> <div class="md-top"> <button class="md-close" @click="delFlag=false">关闭</button> </div> <div class="md-content"> <div class="confirm-tips"> <p id="cusLanInfo">你确认删除此订单信息吗?</p> </div> <div class="btn-wrap col-2"> <button class="btn btn--m" id="btnModalConfirm" @click="delProduct()">确定</button> <button class="btn btn--m btn--red" id="btnModalCancel" @click="delFlag=false">取消</button> </div> </div> </div></div><div class="md-overlay" v-show="delFlag"></div> </div> <script type="text/javascript" src="http://www.mamicode.com/node_modules/vue/dist/vue.js"></script> <script type="text/javascript" src="http://www.mamicode.com/node_modules/axios/dist/axios.js"></script> <script type="text/javascript" src="http://www.mamicode.com/js/cart.js"></script> </body></html>
2 cart.js
/** * Created by Administrator on 2017/4/2 0002. */// Vue.config.silent = true; 用于取消 Vue 所有的日志与警告let vmCart = new Vue({ el: ‘#app‘, data: { totalMoney: 0, //单商品总金额 totalAllPrice: 0, //选择所有商品的总金额 productList: [], //作为商品列表 checkAllFlag: false, //是否全选 存在该变量才能被监听到 delFlag: false, //是否删除 delIndex: ‘‘ //保留点击删除哪个li的索引 }, filters: { //局部过滤器 formatMoney: function (value) { //格式化价格格式 return "￥"+value.toFixed(2); }, }, mounted: function(){ //dom加载完后(生命周期)实例创建后查询某个方法钩子函数--进来之后查询商品 //this.cartView(); //2使用 this.$nextTick(function () { //mounted不能保证此时new Vue()一定实例化了(使用vmCart可能会报错) //$nextTick()可以保证一定是实例化后了 vmCart.cartView(); }); }, methods: { cartView: function(){ //1定义 const _this = this; //这里的this指向vmCart axios.get(‘data/cartData.json‘) //使用axios .then(function(res){ //then回调函数 // 使用箭头函数的话，this的作用域并不会变，还是指向vmCart // (res)=>{ // if(res.status == 200){ // this.totalMoney = res.data.result.totalMoney; // this.list = res.data.result.list; // } // } // 不使用箭头函数的场合 // 如果要使用vmCart实例， // 就必须在mounted钩子函数里再调用一次$nextTick方法才能保证el被render在dom中 //res 数据库返回的对象 //res.data.result.list 返回的数据数组 //console.log(res); if(res.status == 200){ //状态为200时执行后面语句 _this.productList = res.data.result.list; _this.totalMoney = res.data.result.totalMoney; } }) .catch(function(err){ console.log(‘get data error...‘); //从数据库获取数据出现问题 }); }, changeMoney: function (item, way) { //商品数量增加和减少 if(way>0){ //点击了+ item.productQuentity++; }else{ //点击了- item.productQuentity<=0?item.productQuentity = 0:item.productQuentity--; } this.calcTotalPrice(); }, selectedProduct: function (item) { if(typeof item.checked == ‘undefined‘){ //判断item.checked是否存在 Vue.set(item, ‘checked‘, true); //向item全局注册了一个属性checked值为true //this.$set(item, ‘checked‘, true);//局部注册item.checked }else{ //存在--即至少点击了一次后 item.checked = !item.checked; }; this.calcTotalPrice(); }, checkAll: function (flag) { //全选/取消全选 this.checkAllFlag = flag; this.productList.forEach((item, index) => { //这里存在一个问题当用户直接点击全选 //此时item.check还未存在这个属性 所以要检测一下 if(typeof item.checked == ‘undefined‘){ //Vue.set(item, ‘checked‘, true); this.$set(item, ‘checked‘, this.checkAllFlag); //箭头函数内部还是外部作用域的this }else{ item.checked = this.checkAllFlag; } }); this.calcTotalPrice(); }, calcTotalPrice: function () { //计算选中商品总金额函数 this.totalAllPrice = 0; this.productList.forEach((item, index) => { if(item.checked){ //说明这个商品选中了 this.totalAllPrice += item.productPrice*item.productQuentity; } }) }, delConfirm: function (item) { //点击删除按钮 this.delFlag = true; this.delIndex = item; }, delProduct: function () { //删除点击了删除的商品 let index = this.productList.indexOf(this.delIndex); this.productList.splice(index,1); //vue2开始认为js就有删除数组的方法故自己写操作 //实际项目中需要把这个商品的信息传递到后台 this.delFlag = false; } }});Vue.filter(‘money‘, (value, type) => { //全局过滤器 return "￥"+ value.toFixed(2) + type;});
3 自己理解
vue2购物车ch3-（过滤器使用 单件商品金额计算 全选全不选 总金额计算 删除商品功能）
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