How to use Vue to implement the WeChat official account backend management page?

With the popularization of the Internet and the rapid development of mobile Internet, today's life has changed a lot. In this new era, mobile Internet has always been an important development direction. As a new type of mobile Internet product, WeChat official account has quickly become popular all over the world. At this time, the WeChat public account backend management page has also become a popular development requirement.

In terms of front-end technology, Vue is a very excellent framework. Especially in large projects, Vue has excellent performance and flexibility. Therefore, it is worth trying to use Vue to implement the WeChat official account backend management page.

So, how to use Vue to implement the WeChat official account backend management page? This article will introduce it in detail from the following aspects.

1. Build a Vue project

To use Vue to develop a project, the first step is to build a project using the Vue CLI.

If you have installed Node.js and NPM, enter the following commands in the command line to complete the construction of a basic Vue project:

$ npm install -g @vue/cli
$ vue create my-project

After creating the project, Go to the project folder and start the project:

$ cd my-project
$ npm run serve

At this point, you can access the project in the browser.

2. Design the interface layout

In the WeChat public account backend management page, there are many modules: menu management, material management, user management, etc., so you need to design the layout of the entire interface first. You can use a UI library like Element UI, which provides many mature components and is very convenient and fast.

First, install Element UI in the Vue project:

$ npm install element-ui -S

After the installation is completed, you can configure it in main.js and introduce Element UI:

import Vue from 'vue'
import ElementUI from 'element-ui'
import 'element-ui/lib/theme-chalk/index.css'

Vue.use(ElementUI)

After introduction, We can use the components provided by Element UI in the project.

Taking the login page as an example, there are generally two input boxes (account number, password) and a login button. You can use the following code to achieve this:

<el-form ref="form" :model="form" :rules="rules" label-width="100px">
  <el-form-item label="账号" prop="username">
    <el-input v-model="form.username"></el-input>
  </el-form-item>
  <el-form-item label="密码" prop="password">
    <el-input v-model="form.password" show-password></el-input>
  </el-form-item>
  <el-form-item>
    <el-button type="primary" @click="onSubmit">登录</el-button>
  </el-form-item>
</el-form>

3. Implement data interaction

Separating the front-end and back-end is a common solution now, so we must consider the issue of front-end and back-end interaction when writing the background management page.

You can use the Axios library for front-end and back-end interaction. It is a Promise-based HTTP library that can be used in browsers and Node.js.

First install Axios in the project:

$ npm install axios -S

Then, configure it in main.js:

import axios from 'axios'

Vue.prototype.$http = axios.create({
  baseURL: process.env.VUE_APP_BASE_API,
  timeout: 5000
})

After configuration, you can send requests in the project. Taking the login page as an example, it can be implemented like this:

methods: {
  onSubmit() {
    this.$refs.form.validate((valid) => {
      if (valid) {
        this.$http.post('/login', this.form).then((response) => {
          // 登录成功后的逻辑
        }).catch((error) => {
          // 登录失败后的逻辑
        })
      } else {
        return false
      }
    })
  }
}

4. Implement route navigation

In a large project, a page usually has many sub-pages, so we need to use route navigation To switch subpages.

You can use the Vue Router library to implement routing and navigation functions. Next, let's implement routing navigation.

First install Vue Router in the Vue project:

$ npm install vue-router -S

Then, create the routing file router.js in the project, and configure the routing:

import Vue from 'vue'
import Router from 'vue-router'
import Login from './views/Login.vue'
import Home from './views/Home.vue'
import Welcome from './views/Welcome.vue'
import Users from './views/user/Users.vue'

Vue.use(Router)

const router = new Router({
  routes: [
    {
      path: '/',
      redirect: '/login'
    },
    {
      path: '/login',
      component: Login
    },
    {
      path: '/home',
      component: Home,
      redirect: '/welcome',
      children: [
        {
          path: '/welcome',
          component: Welcome
        },
        {
          path: '/users',
          component: Users
        }
      ]
    }
  ]
})

router.beforeEach((to, from, next) => {
  if (to.path === '/login') {
    return next()
  }
  const token = window.sessionStorage.getItem('token')
  if (!token) {
    return next('/login')
  }
  next()
})

export default router

The above code , we specified three pages: login page, home page and welcome page, using the nesting and redirection functions of routing. At the same time, we also use a routing guard. When the user is not logged in, he will jump to the login page for verification.

5. Implement component encapsulation

When developing large projects, we need to encapsulate some commonly used components to facilitate our calls and reduce the amount of redundant code.

Taking the search box as an example, you can create a new component SearchBar.vue:

<template>
  <el-form ref="form" :model="form" :inline="true" label-width="80px" class="search-bar">
    <el-form-item v-for="(item, index) in formItems" :key="index" :label="item.label" :prop="item.prop">
      <component :is="item.component" v-model="form[item.prop]" :options="item.options"></component>
    </el-form-item>
    <el-form-item>
      <el-button type="primary" icon="el-icon-search" @click="onSearch">搜索</el-button>
      <el-button type="text" icon="el-icon-refresh" @click="onReset">重置</el-button>
    </el-form-item>
  </el-form>
</template>

<script>
export default {
  name: 'SearchBar',
  props: {
    formItems: {
      type: Array,
      default: () => []
    },
    onSearch: Function,
    onReset: Function
  },
  data() {
    return {
      form: {}
    }
  }
}
</script>

In this component, we use the characteristics of dynamic components and slots to combine different types of elements in the search box. The input box components are uniformly encapsulated, making the components more flexible, easy to maintain and expand.

When using this component, you only need to pass in the corresponding parameters:

<search-bar :form-items="formItems" :on-search="handleSearch" :on-reset="handleReset"></search-bar>

Summary

This article focuses on the steps of using Vue to implement the WeChat public account background management page A detailed introduction, in summary, mainly includes the following aspects:

• Building a Vue project
• Designing the interface layout
• Implementing data interaction
• Implementation Routing and navigation
• Implementing component encapsulation

In practical applications, Vue has very flexible scalability, and other plug-ins and libraries can be used to enhance development efficiency and project functions.

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