UniApp implementation guide for e-commerce shopping and order management

UniApp is a cross-platform development framework based on Vue.js that can create mobile applications quickly and easily. In this article, we will introduce how to use UniApp to implement e-commerce shopping and order management functions, and provide corresponding code examples.

1. Project preparation
First, we need to install the UniApp development environment. Please make sure you have Node.js and Vue CLI installed. Then, you can use the following command to install UniApp globally:

npm install -g @vue/cli @vue/cli-init

After the installation is complete, we can use the following command to create a new UniApp project:

vue init dcloudio/uni-preset-vue demo

Where "demo" is the value you want The name of the project to create. After creation, enter the project directory and start the development server:

cd demo
npm run dev:mp-weixin

Now, you can open the project in the WeChat developer tools and start development.

2. E-commerce shopping function implementation

1. Product list
   In UniApp, we can use uni-list and uni- list-item component to implement the product list. We can add the following code in the template section of the page:

<template>
  <view>
    <uni-list>
      <uni-list-item v-for="item in productList" :key="item.id">
        <view slot="title">{{ item.name }}</view>
        <view slot="note">{{ item.price }}</view>
      </uni-list-item>
    </uni-list>
  </view>
</template>

<script>
export default {
  data() {
    return {
      productList: [
        { id: 1, name: '商品1', price: 10 },
        { id: 2, name: '商品2', price: 20 },
        { id: 3, name: '商品3', price: 30 },
      ],
    };
  },
};
</script>

2. Add to cart
   In the product list, we can add the following code by using uni -button to add items to the shopping cart. We can add the following code to the template section of the page:

<template>
  <view>
    <uni-list>
      <uni-list-item v-for="item in productList" :key="item.id">
        <view slot="title">{{ item.name }}</view>
        <view slot="note">{{ item.price }}</view>
        <view slot="action">
          <uni-button @click="addToCart(item)">添加到购物车</uni-button>
        </view>
      </uni-list-item>
    </uni-list>
  </view>
</template>

<script>
export default {
  data() {
    return {
      productList: [
        { id: 1, name: '商品1', price: 10 },
        { id: 2, name: '商品2', price: 20 },
        { id: 3, name: '商品3', price: 30 },
      ],
      cartList: [],
    };
  },
  methods: {
    addToCart(item) {
      this.cartList.push(item);
    },
  },
};
</script>

3. Shopping Cart Page
   We can create a new page to display the items in the shopping cart . In UniApp, we can display the shopping cart list by using the uni-list and uni-list-item components. We can add the following code in the template part of the page:

<template>
  <view>
    <uni-list>
      <uni-list-item v-for="item in cartList" :key="item.id">
        <view slot="title">{{ item.name }}</view>
        <view slot="note">{{ item.price }}</view>
      </uni-list-item>
    </uni-list>
  </view>
</template>

<script>
export default {
  data() {
    return {
      cartList: [],
    };
  },
};
</script>

3. Order management function implementation

1. Create order
   in the shopping cart In the page, we can create an order by using uni-button. We can add the following code in the template section of the page:

<template>
  <view>
    <uni-list>
      <uni-list-item v-for="item in cartList" :key="item.id">
        <view slot="title">{{ item.name }}</view>
        <view slot="note">{{ item.price }}</view>
        <view slot="action">
          <uni-button @click="createOrder(item)">创建订单</uni-button>
        </view>
      </uni-list-item>
    </uni-list>
  </view>
</template>

<script>
export default {
  data() {
    return {
      cartList: [],
      orderList: [],
    };
  },
  methods: {
    createOrder(item) {
      this.orderList.push(item);
      const index = this.cartList.indexOf(item);
      this.cartList.splice(index, 1);
    },
  },
};
</script>

2. Order List
   In UniApp, we can do this by using uni-list and uni-list-item components to display the order list. We can create a new page to display orders. Add the following code in the template section of the page:

<template>
  <view>
    <uni-list>
      <uni-list-item v-for="item in orderList" :key="item.id">
        <view slot="title">{{ item.name }}</view>
        <view slot="note">{{ item.price }}</view>
      </uni-list-item>
    </uni-list>
  </view>
</template>

<script>
export default {
  data() {
    return {
      orderList: [],
    };
  },
};
</script>

The above is a guide to using UniApp to implement e-commerce shopping and order management. Through the above steps, we can implement functions such as product list, add to shopping cart, shopping cart page, create order and order list. Hope this article is helpful to you.

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