Vue CLI搭配Django快速开发前后端分离项目

1. 必要的环境、软件安装配置

  1. 安装node.js
  2. 安装编辑器pycharm和webstorm
  3. 安装谷歌浏览器
  4. npm换源

npm config set registry https://registry.npm.taobao.org
npm config get registry
npm install -g vue-cli

2. 脚手架创建 、使用webstorm打开浏览了解具体内容

  1. 创建脚手架

vue init webpack vueproject
项目名称,项目描述,作者等4个回车
只安装vue-router,其他全是n
使用npm来安装,y

运行项目

cd vueproject
npm run dev

3. 路由、来看看前端是如何路由的

src里目录结构

  1. assets:静态文件
  2. component:放组件的
  3. router:路由
  4. App.ve:页面入口文件
  5. main.js:程序入口文件,加载各种公共组件

创建路由

  1. 新建一个组件User.vue

    <template>
    	<div id="user">
    		{ { page_info } }
    	</div>
    </template>
    <script>
    	export default {
    		name: "User",
    		data(){
    			return {
    				page_info: "this User page"
    			}
    		}
    	}
    </script>
    <style scoped>
    </style>
    
  2. 在router/index.js中配置User路由

    import Vue from 'vue'
    import Router from 'vue-router'
    import HelloWorld from '@/components/HelloWorld'
    import User from '@/components/User'
    
    Vue.use(Router)
    
    export default new Router({
      routes: [
        {
          path: '/',
          name: 'HelloWorld',
          component: HelloWorld
        },
        {
          path: '/user',
          name: 'User',
          component: User,
        }
      ]
    })
    
  3. 在App.vue中应用路由//user

    <template>
      <div id="app">
        <img src="./assets/logo.png"><br />
        <router-link to="/">Root</router-link>
        <router-link to="/user">User</router-link>
        <hr />
        <router-view/>
      </div>
    </template>
    
    <script>
    export default {
      name: 'App'
    }
    </script>
    
    <style>
    #app {
      font-family: 'Avenir', Helvetica, Arial, sans-serif;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      text-align: center;
      color: #2c3e50;
      margin-top: 60px;
    }
    </style>
    

4. 发送请求前的准备工作, 搭建django运行环境

创建django项目

  1. 用pycharm直接创建django项目webproject,应用mysite
  2. 初始化数据库python manage.py migrate

修改settings.py

  1. 允许所有主机访问ALLOWED_HOSTS = ['*']
  2. 注释掉'django.middleware.csrf.CsrfViewMiddleware',
  3. 语言改成中文LANGUAGE_CODE = 'zh-Hans'
  4. 时区改为上海TIME_ZONE = 'Asia/Shanghai'
  5. USE_TZ = False
  6. 运行项目python manage.py runserver
  7. 静态文件改为前后端分离的STATIC_URL = '/api/static/'

配置URL路由

  1. 总路由

    from django.contrib import admin
    from django.urls import path, include
    
    urlpatterns = [
    	path('admin/', admin.site.urls),
    	path('api/', include("mysite.urls"))
    ]
    
  2. 子路由

    from django.urls import path
    from mysite import views
    
    urlpatterns = [
    	path("test/", views.test)
    ]
    
  3. 视图函数

    from django.http import JsonResponse
    
    def test(request):
    	return JsonResponse({"status": 0, "message": "this is message"})
    
  4. 在浏览器中访问http://127.0.0.1:8000/api/test/

5. 初探django 跨域代理 并使用axios请求django数据

  1. 安装axiosnpm install axios --save

  2. 在main.js中注册axios

    import Vue from 'vue'
    import App from './App'
    import router from './router'
    import axios from 'axios'
    
    Vue.use(axios);
    Vue.config.productionTip = false
    Vue.prototype.$axios = axios
    
    /* eslint-disable no-new */
    new Vue({
      el: '#app',
      router,
      components: { App },
      template: '<App/>'
    })
    
  3. 在User.vue中接收后端传过来的数据

    <template>
    	<div id="user">
    		{ { page_info } }
    	</div>
    </template>
    <script>
    	export default {
    		name: "User",
    		data(){
    			return {
    				page_info: "this User page"
    			}
    		},
        created() {
          this.$axios.get("/api/test/")
            .then(response => {
              console.log(response.data)
            })
        }
    	}
    </script>
    <style scoped>
    </style>
    
  4. 解决跨域问题,修改config/index.js

    proxyTable: {
      '/api': {
        target: 'http://127.0.0.1:8000/api/', //接口域名
        changeOrigin: true, //是否跨域
        pathRewrite: {
          '^/api':'' ,//需要rewrite重写的
        }
      }
    },
    
  5. 访问http://localhost:8080/#/user就能接到数据了,但是还不能显示出来

6. 从数据库取数据给vue渲染表格

  1. 修改User.vue把后端传过来的数据显示出来

    <template>
    	<div id="user">
    		{ { page_info } }
        <br />
        { { django_message } }
    	</div>
    </template>
    <script>
    	export default {
    		name: "User",
    		data(){
    			return {
    				page_info: "this User page",
            django_message: ""
    			}
    		},
        created() {
          this.$axios.get("/api/test/")
            .then(response => {
              this.django_message = response.data.message
            })
        }
    	}
    </script>
    <style scoped>
    </style>
    
  2. 在models.py中创建Stu表

    from django.db import models
    
    # Create your models here.
    class Stu(models.Model):
    	id = models.IntegerField(primary_key=True,auto_created=True)
    	name = models.CharField(max_length=200)
    
  3. 生成迁移文件python manage.py makemigrations

  4. 执行迁移文件python manage.py migrate

  5. 在models.py中注册Stu表

    from django.contrib import admin
    from . import models
    
    # Register your models here.
    admin.site.register(models.Stu)
    
  6. 创建超级管理员python manage.py createsuperuser,用户名caoyang,密码Mm23456

  7. 运行项目,访问127.0.0.1:8000/admin/login

  8. 往学生表中添加几个用户

  9. 在views.py中返回表中数据

    from django.http import JsonResponse
    from .models import Stu
    
    # Create your views here.
    def test(request):
    	return JsonResponse({"status": 0, "message": "this is django_message"})
    
    def ret_user(request):
    	if request.method == "GET":
    		db = Stu.objects.all()
    		db = [i.name for i in db]
    		return JsonResponse({"status":0,"data":db})
    	else:
    		return JsonResponse({"status":1,"message":"you need GET method"})
    
  10. 配置子路由path("user/",views.ret_user)

  11. 访问http://127.0.0.1:8000/api/user/就能返回数据了

  12. 修改前端界面User.vue

    <template>
    	<div id="user">
    		{ { page_info } }
        <br />
        { { django_message } }
        <br />
        <table>
          <tr>
            <th>user</th>
          </tr>
          <tr v-for="user in user_list" :key='user'>
            <td>{ { user } }</td>
          </tr>
        </table>
    	</div>
    </template>
    <script>
    	export default {
    		name: "User",
    		data(){
    			return {
    				page_info: "this User page",
            django_message: "",
            user_list: [],
    			}
    		},
        created() {
          this.$axios.get("/api/test/")
            .then(response => {
              this.django_message = response.data.message
            });
          this.$axios.get("/api/user/")
            .then(response => {
              this.user_list = response.data.data
            })
        }
    	}
    </script>
    <style scoped>
    </style>
    
  13. 访问http://localhost:8080/#/user即可接受到数据了

7. django序列化json数据方便vue识别

  1. 在views.py中导入from django.core import serializers序列化的模块,可以将queryset转化为json

  2. 修改ret_user视图函数,访问http://127.0.0.1:8000/api/user/

    def ret_user(request):
    	if request.method == "GET":
    		json = serializers.serialize("json",Stu.objects.all())
    		return JsonResponse({"status":0,"data":json})
    	else:
    		return JsonResponse({"status":1,"message":"you need GET method"})
    
  3. 修改前端界面User.vue,访问http://localhost:8080/#/user

    <template>
    	<div id="user">
    		{ { page_info } }
        <br />
        { { django_message } }
        <br />
        <table>
          <tr>
            <th>id</th>
            <th>user</th>
          </tr>
          <tr v-for="user in user_list" :key='user'>
            <td>{ { user.pk } }</td>
            <td>{ { user.fields.name } }</td>
          </tr>
        </table>
    	</div>
    </template>
    <script>
    	export default {
    		name: "User",
    		data(){
    			return {
    				page_info: "this User page",
            django_message: "",
            user_list: [],
    			}
    		},
        created() {
          this.$axios.get("/api/test/")
            .then(response => {
              this.django_message = response.data.message
            });
          this.$axios.get("/api/user/")
            .then(response => {
              this.user_list = JSON.parse(response.data.data)
            })
        }
    	}
    </script>
    <style scoped>
    </style>
    
    
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转载自blog.csdn.net/weixin_45158297/article/details/104299960