node实现购物车功能

版权声明: https://blog.csdn.net/xyphf/article/details/84708747

node服务端

配置转发代理

config/index.js

// see http://vuejs-templates.github.io/webpack for documentation.
var path = require('path')

module.exports = {
  build: {
    env: require('./prod.env'),
    index: path.resolve(__dirname, '../dist/index.html'),
    assetsRoot: path.resolve(__dirname, '../dist'),
    assetsSubDirectory: 'static',
    assetsPublicPath: 'baidu.com',
    productionSourceMap: true,
    // Gzip off by default as many popular static hosts such as
    // Surge or Netlify already gzip all static assets for you.
    // Before setting to `true`, make sure to:
    // npm install --save-dev compression-webpack-plugin
    productionGzip: false,
    productionGzipExtensions: ['js', 'css'],
    // Run the build command with an extra argument to
    // View the bundle analyzer report after build finishes:
    // `npm run build --report`
    // Set to `true` or `false` to always turn it on or off
    bundleAnalyzerReport: process.env.npm_config_report
  },
  dev: {
    env: require('./dev.env'),
    port: 8989,
    autoOpenBrowser: true,
    assetsSubDirectory: 'static',
    assetsPublicPath: '/',
    proxyTable: {
      '/goods':{
          target:'http://localhost:3000'
      },
      '/goods/*':{
        target:'http://localhost:3000'
      },
      '/users/*':{ // **表示匹配这个路由下面所有的路由接口
        target:'http://localhost:3000'
      }
    },
    // CSS Sourcemaps off by default because relative paths are "buggy"
    // with this option, according to the CSS-Loader README
    // (https://github.com/webpack/css-loader#sourcemaps)
    // In our experience, they generally work as expected,
    // just be aware of this issue when enabling this option.
    cssSourceMap: false
  }
}

server/bin/www

#!/usr/bin/env node

/**
 * Module dependencies.
 */

var app = require('../app');
var debug = require('debug')('server:server');
var http = require('http');

/**
 * Get port from environment and store in Express.
 */

var port = normalizePort(process.env.PORT || '3000');
app.set('port', port);

/**
 * Create HTTP server.
 */

var server = http.createServer(app);

/**
 * Listen on provided port, on all network interfaces.
 */

server.listen(port);
server.on('error', onError);
server.on('listening', onListening);

/**
 * Normalize a port into a number, string, or false.
 */

function normalizePort(val) {
  var port = parseInt(val, 10);

  if (isNaN(port)) {
    // named pipe
    return val;
  }

  if (port >= 0) {
    // port number
    return port;
  }

  return false;
}

/**
 * Event listener for HTTP server "error" event.
 */

function onError(error) {
  if (error.syscall !== 'listen') {
    throw error;
  }

  var bind = typeof port === 'string'
    ? 'Pipe ' + port
    : 'Port ' + port;

  // handle specific listen errors with friendly messages
  switch (error.code) {
    case 'EACCES':
      console.error(bind + ' requires elevated privileges');
      process.exit(1);
      break;
    case 'EADDRINUSE':
      console.error(bind + ' is already in use');
      process.exit(1);
      break;
    default:
      throw error;
  }
}

/**
 * Event listener for HTTP server "listening" event.
 */

function onListening() {
  var addr = server.address();
  var bind = typeof addr === 'string'
    ? 'pipe ' + addr
    : 'port ' + addr.port;
  debug('Listening on ' + bind);
}

server/models/user.js

var mongoose = require('mongoose')
var userSchema = mongoose.Schema({
    "userId":String,   // 用户Id
    "userName":String, // 用户名
    "userPwd":String,  // 用户密码
    "orderList":Array,  // 订单列表
    "cartList":[ // 购物车列表
        {
            "productId": String,  // 商品Id
            "productName": String, // 商品名称
            "salePrice":String, // 商品价格
            "productImage":String, // 图片地址
            "checked":String, // 是否选中
            "productNum":String // 商品数量
        }
    ],
    "addressList":Array // 用户地址列表
});

// 通过module.exports进行输出,这样才能加载到  三个参数分别是 模型名,userSchema名,管理数据库集合名
module.exports = mongoose.model("User",userSchema,"users");

server/models/goods.js

var mongoose = require('mongoose')
var Schema = mongoose.Schema;

var produtSchema = new Schema({
    "productId":String,
    "productName":String,
    "salePrice":Number,
    "checked":String,
    "productNum": Number,
    "checked":String,
    "prodcutImage": String
});

module.exports = mongoose.model('Good',produtSchema);

server/routes/user.js

var express = require('express');
var router = express.Router();

var User = require('./../models/user');

/* GET users listing. */
router.get('/', function(req, res, next) {
  res.send('respond with a resource');
});

router.get('/test', function(req, res, next) {
  res.send('test');
});

// 登录
router.post('/login', function(req, res, next) {
  // 获取前端传过来的参数 post方式用req.Body形式获取参数
  var param = {
    userName:req.body.userName,
    userPwd:req.body.userPwd
  }
  User.findOne(param, function(err,doc) {
    if(err){
      res.json({
        status:"1",
        msg:err.message
      });
    }else{
        if(doc){
          res.cookie("userId",doc.userId,{ // 将用户信息存入cookie
            path:'/',
            maxAge: 1000*60*60
          }); 
          res.cookie("userName",doc.userName, {
            path:'/',
            maxAge: 1000*60*60
          });
          // req.session.user = doc; // 将用户信息存入session
          res.json({
            status:'0',
            msg:'',
            result:{
              userName:doc.userName
            }
          })
        }
    }
  });
});

// 登出接口
router.post("/logout", function (req,res,next) {
  res.cookie("userId", "", { // 登出将userId设置为""
    path:"/",
    maxAge:-1 // 设置位过期
  })
  res.json({
    status:"0",
    msg:'',
    result:''
  })
})

// 校验用户信息
router.get("/checkLogin", function (req,res,next) {
    if(req.cookies.userId){
      res.json({
        status:'0',
        msg:'',
        result: req.cookies.userName || '' // 获取cookeie req.cookies.属性
      });
    }else{ // 取不到就说明当前没有登录
      res.json({
        status:'1',
        msg:'未登录',
        result:''
      });
    }
})

// 查询当前用户的购物车数据
router.get("/cartList", function (req,res,next) {
  var userId = req.cookies.userId;
  console.log(userId);
  User.findOne({userId:userId}, function (err,doc) {
      if(err){
        res.json({
          status:'1',
          msg:err.message,
          result:''
        });
      }else{
          if(doc){
            res.json({
              status:'0',
              msg:'',
              result:doc.cartList
            });
          }
      }
  });
});

// 购物车删除
router.post("/cartDel", function (req,res,next) {
  // 获取浏览器的cookie 以及用户传递过来的参数 productId
  var userId = req.cookies.userId,productId = req.body.productId;
  User.update({
    userId:userId
  },{
    $pull:{
      'cartList':{
        'productId':productId
      }
    }
  }, function (err,doc) {
    if(err){
      res.json({
        status:'1',
        msg:err.message,
        result:''
      });
    }else{
      res.json({
        status:'0',
        msg:'',
        result:'suc'
      });
    }
  });
});

//修改购物车商品数量
router.post("/cartEdit", function (req,res,next) {
  var userId = req.cookies.userId,     // 获取用户客户端的userId
      productId = req.body.productId,  // 获取用户传的参数商品id
      productNum = req.body.productNum, // 获取用户传的参数商品id
      checked = req.body.checked;       // 获取用户传的参数是否选中
  User.update({
    "userId":userId,
    "cartList.productId":productId},{
    "cartList.$.productNum":productNum,
    "cartList.$.checked":checked,
  }, function (err,doc) {
    if(err){
      res.json({
        status:'1',
        msg:err.message,
        result:''
      });
    }else{
      res.json({
        status:'0',
        msg:'',
        result:'suc'
      });
    }
  })
});

// 商品全选不选
router.post("/editCheckAll", function (req,res,next) {
  var userId = req.cookies.userId,
      checkAll = req.body.checkAll?'1':'0';
  User.findOne({userId:userId}, function (err,user) {
    if(err){
      res.json({
        status:'1',
        msg:err.message,
        result:''
      });
    }else{
      if(user){
        user.cartList.forEach((item)=>{
          item.checked = checkAll;
        })
        user.save(function (err1,doc) {
            if(err1){
              res.json({
                status:'1',
                msg:err1,message,
                result:''
              });
            }else{
              res.json({
                status:'0',
                msg:'',
                result:'suc'
              });
            }
        })
      }
    }
  });
});


module.exports = router;

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main.js

// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue'
import App from './App'
import router from './router'
import VueLazyLoad from 'vue-lazyload' // 引入图片懒加载插件
import infiniteScroll from 'vue-infinite-scroll'
import {currency} from './util/currency' // 引入金额过滤器
Vue.config.productionTip = false

Vue.use(infiniteScroll)
// 使用并配置loading图片
Vue.use(VueLazyLoad,{
  loading:"/static/loading-svg/loading-bars.svg"
});

Vue.filter("currency",currency); // 定义全局金额过滤器

/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  template: '<App/>',
  components: { App }
});

金额数据格式化工具

util/currency.js

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const digitsRE = /(\d{3})(?=\d)/g
                        //金额,货币符号,小数点位数
export function currency (value, currency, decimals) {
  value = parseFloat(value)
  if (!isFinite(value) || (!value && value !== 0)) return ''
  currency = currency != null ? currency : '$'
  decimals = decimals != null ? decimals : 2
  var stringified = Math.abs(value).toFixed(decimals)
  var _int = decimals
    ? stringified.slice(0, -1 - decimals)
    : stringified
  var i = _int.length % 3
  var head = i > 0
    ? (_int.slice(0, i) + (_int.length > 3 ? ',' : ''))
    : ''
  var _float = decimals
    ? stringified.slice(-1 - decimals)
    : ''
  var sign = value < 0 ? '-' : ''
  return sign + currency + head +
    _int.slice(i).replace(digitsRE, '$1,') +
    _float
}

购物车

views/Cart.vue

<template>
  <div>
    <nav-header></nav-header>
    <nav-bread>
      <span>My Cart</span>
    </nav-bread>
    <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 32 32">
          <title>ok</title>
          <path class="path1"
                d="M31.020 0.438c-0.512-0.363-1.135-0.507-1.757-0.406s-1.166 0.435-1.529 0.937l-17.965 24.679-5.753-5.67c-0.445-0.438-1.035-0.679-1.664-0.679s-1.219 0.241-1.664 0.679c-0.917 0.904-0.917 2.375 0 3.279l7.712 7.6c0.438 0.432 1.045 0.681 1.665 0.681l0.195-0.008c0.688-0.057 1.314-0.406 1.717-0.959l19.582-26.9c0.754-1.038 0.512-2.488-0.538-3.233z"></path>
        </symbol>
        <symbol id="icon-edit" viewBox="0 0 32 32">
          <title>edit</title>
          <path class="path1"
                d="M28.287 8.51l-4.805-4.806 0.831-0.831c0.472-0.472 1.086-0.777 1.564-0.777 0.248 0 0.452 0.082 0.622 0.253l3.143 3.144c0.539 0.54 0.133 1.529-0.524 2.186l-0.831 0.831zM26.805 9.992l-1.138 1.138-4.805-4.806 1.138-1.138 4.805 4.806zM24.186 12.612l-14.758 14.762-4.805-4.806 14.758-14.762 4.805 4.806zM7.379 28.288l-4.892 1.224 1.223-4.894 3.669 3.67zM31.123 4.011l-3.143-3.144c-0.567-0.567-1.294-0.867-2.103-0.867-1.036 0-2.174 0.52-3.045 1.391l-20.429 20.436c-0.135 0.134-0.23 0.302-0.276 0.487l-2.095 8.385c-0.089 0.355 0.017 0.736 0.276 0.995 0.198 0.198 0.461 0.307 0.741 0.307 0.085 0 0.171-0.010 0.254-0.031l8.381-2.096c0.185-0.047 0.354-0.142 0.487-0.276l20.43-20.436c1.409-1.41 2.042-3.632 0.524-5.15v0z"></path>
        </symbol>
        <symbol id="icon-del" viewBox="0 0 32 32">
          <title>delete</title>
          <path class="path1"
                d="M11.355 4.129v-2.065h9.29v2.065h-9.29zM6.194 29.935v-23.742h19.613v23.742h-19.613zM30.968 4.129h-8.258v-3.097c0-0.569-0.463-1.032-1.032-1.032h-11.355c-0.569 0-1.032 0.463-1.032 1.032v3.097h-8.258c-0.569 0-1.032 0.463-1.032 1.032s0.463 1.032 1.032 1.032h3.097v24.774c0 0.569 0.463 1.032 1.032 1.032h21.677c0.569 0 1.032-0.463 1.032-1.032v-24.774h3.097c0.569 0 1.032-0.463 1.032-1.032s-0.463-1.032-1.032-1.032v0z"></path>
          <path class="path2"
                d="M10.323 9.806c-0.569 0-1.032 0.463-1.032 1.032v14.452c0 0.569 0.463 1.032 1.032 1.032s1.032-0.463 1.032-1.032v-14.452c0-0.569-0.463-1.032-1.032-1.032z"></path>
          <path class="path3"
                d="M16 9.806c-0.569 0-1.032 0.463-1.032 1.032v14.452c0 0.569 0.463 1.032 1.032 1.032s1.032-0.463 1.032-1.032v-14.452c0-0.569-0.463-1.032-1.032-1.032z"></path>
          <path class="path4"
                d="M21.677 9.806c-0.569 0-1.032 0.463-1.032 1.032v14.452c0 0.569 0.463 1.032 1.032 1.032s1.032-0.463 1.032-1.032v-14.452c0-0.569-0.463-1.032-1.032-1.032z"></path>
        </symbol>
        <symbol id="icon-clock" viewBox="0 0 32 32">
          <title>clock</title>
          <path class="path1" fill="#605f5f"
                d="M16 29c-7.168 0-13-5.831-13-13s5.832-13 13-13c7.168 0 13 5.832 13 13s-5.832 13-13 13zM16 0c-8.822 0-16 7.178-16 16s7.178 16 16 16c8.822 0 16-7.178 16-16s-7.178-16-16-16z"></path>
          <path class="path2" fill="#605f5f"
                d="M23.958 21.837l-6.958-6.489v-6.282c0-0.827-0.673-1.5-1.5-1.5s-1.5 0.673-1.5 1.5v6.934c0 0.414 0.174 0.814 0.477 1.098l7.435 6.934c0.279 0.259 0.642 0.402 1.023 0.402 0.415 0 0.814-0.174 1.096-0.477 0.564-0.605 0.532-1.555-0.073-2.12z"></path>
        </symbol>
      </defs>
    </svg>
    <div class="container">
      <div class="cart">
        <div class="page-title-normal">
          <h2 class="page-title-h2"><span>My Cart</span></h2>
        </div>
        <div class="item-list-wrap">
          <div class="cart-item">
            <div class="cart-item-head">
              <ul>
                <li>Items</li>
                <li>Price</li>
                <li>Quantity</li>
                <li>Subtotal</li>
                <li>Edit</li>
              </ul>
            </div>
            <ul class="cart-item-list">
              <li v-for="(item,index) in cartList" :key="index">
                <div class="cart-tab-1">
                  <div class="cart-item-check">
                    <a href="javascipt:;" class="checkbox-btn item-check-btn" v-bind:class="{'check':item.checked=='1'}" @click="editCart('checked',item)">
                      <svg class="icon icon-ok">
                        <use xlink:href="#icon-ok"></use>
                      </svg>
                    </a>
                  </div>
                  <div class="cart-item-pic">
                    <img v-lazy="'/static/'+item.productImage" v-bind:alt="item.productName">
                  </div>
                  <div class="cart-item-title">
                    <div class="item-name">{{item.productName}}</div>
                  </div>
                </div>
                <div class="cart-tab-2">
                  <div class="item-price">{{item.salePrice | currency('$')}}</div>
                </div>
                <div class="cart-tab-3">
                  <div class="item-quantity">
                    <div class="select-self select-self-open">
                      <div class="select-self-area">
                        <a class="input-sub" @click="editCart('minu',item)">-</a>
                        <span class="select-ipt">{{item.productNum}}</span>
                        <a class="input-add" @click="editCart('add',item)">+</a>
                      </div>
                    </div>
                  </div>
                </div>
                <div class="cart-tab-4">
                  <div class="item-price-total">{{(item.productNum*item.salePrice) | currency('$') }}</div>
                </div>
                <div class="cart-tab-5">
                  <div class="cart-item-opration">
                    <a href="javascript:;" class="item-edit-btn" @click="delCartConfirm(item.productId)">
                      <svg class="icon icon-del">
                        <use xlink:href="#icon-del"></use>
                      </svg>
                    </a>
                  </div>
                </div>
              </li>
            </ul>
          </div>
        </div>
        <div class="cart-foot-wrap">
          <div class="cart-foot-inner">
            <div class="cart-foot-l">
              <div class="item-all-check">
                <a href="javascipt:;" @click="toggleCheckAll">
                  <span class="checkbox-btn item-check-btn" v-bind:class="{'check':checkAllFlag}">
                      <svg class="icon icon-ok"><use xlink:href="#icon-ok"/></svg>
                  </span>
                  <span>Select all</span>
                </a>
              </div>
            </div>
            <div class="cart-foot-r">
              <div class="item-total">
                Item total: <span class="total-price">{{totalPrice | currency('$')}}</span>
              </div>
              <div class="btn-wrap">
                <a class="btn btn--red"  >Checkout</a>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
    <Modal :mdShow="modalConfirm" @close="closeModal">
      <p slot="message">你确认要删除此条数据吗?</p>
      <div slot="btnGroup">
        <a class="btn btn--m" href="javascript:;" @click="delCart">确认</a>
        <a class="btn btn--m btn--red" href="javascript:;" @click="modalConfirm = false">关闭</a>
      </div>
    </Modal>
    <nav-footer></nav-footer>
  </div>
</template>
<style>
  .input-sub,.input-add{
    min-width: 40px;
    height: 100%;
    border: 0;
    color: #605F5F;
    text-align: center;
    font-size: 16px;
    overflow: hidden;
    display: inline-block;
    background: #f0f0f0;
  }
  .item-quantity .select-self-area{
    background:none;
    border: 1px solid #f0f0f0;
  }
  .item-quantity .select-self-area .select-ipt{
    display: inline-block;
    padding:0 3px;
    width: 30px;
    min-width: 30px;
    text-align: center;
  }
</style>
<script>
    import './../assets/css/checkout.css'
    import NavHeader from './../components/NavHeader'
    import NavFooter from './../components/NavFooter'
    import NavBread from './../components/NavBread'
    import Modal from './../components/Modal'
    import axios from 'axios'
    export default{
        data(){
            return{
                cartList:[],
                productId:'',
                modalConfirm:false
            }
        },
        mounted(){
            this.init();
        },
        computed:{ // 实时计算
          checkAllFlag() { // 如果选中的数目和购物车列表的数目相等就是全选
            return this.checkedCount == this.cartList.length;
          },
          checkedCount(){ // 获取选中的数目
            var i = 0;
            this.cartList.forEach((item)=>{
              if(item.checked=='1')i++;
            })
            return i;
          },
          totalPrice(){ // 计算购物车选中的总金额
            var money = 0;
            this.cartList.forEach((item)=>{
              if(item.checked=='1'){
                          // 单价成语数量
                money += parseFloat(item.salePrice)*parseInt(item.productNum);
              }
            })
            return money;
          }
        },
        components:{
          NavHeader,
          NavFooter,
          NavBread,
          Modal
        },
        methods:{
            init(){
              axios.get("/users/cartList").then((response)=>{ // 获取购物车列表
                  let res = response.data;
                  this.cartList = res.result;
              });
            },
            closeModal () {
                this.modalConfirm = false;
            },
            delCartConfirm(productId){
                this.productId = productId;
                this.modalConfirm = true;
            },
            delCart(){
              axios.post("/users/cartDel",{ // 删除购物车
                productId:this.productId
              }).then((response)=>{
                  let res = response.data;
                  if(res.status == '0'){
                    this.modalConfirm = false;
                    this.init();
                  }
              });
            },
            toggleCheckAll(){ // 全选反选
              var flag = !this.checkAllFlag;
              this.cartList.forEach((item)=>{
                item.checked = flag?'1':'0';
              })
              axios.post("/users/editCheckAll",{
                checkAll:flag
              }).then((response)=>{
                  let res = response.data;
                  if(res.status=='0'){
                      console.log("update suc");
                  }
              })
            },
            editCart(flag,item){ // 购物车商品数量加减
                if(flag=='add'){
                  item.productNum++;
                }else if(flag=='minu'){
                  if(item.productNum<=1){ // 商品不得小于等于1
                    return;
                  }
                  item.productNum--;
                }else{
                  item.checked = item.checked=="1"?'0':'1';
                }
                axios.post("/users/cartEdit",{
                  productId:item.productId,
                  productNum:item.productNum,
                  checked:item.checked
                }).then((response)=>{
                    let res = response.data;
                    if(res.status=="0"){
                      this.$store.commit("updateCartCount",flag=="add"?1:-1);
                    }
                })
            }
        }
    }
</script>

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转载自blog.csdn.net/xyphf/article/details/84708747