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  • 图书管理系统Django+Vue

    配置跨域Django和Vue点击

    后端

    1. 图书管理系统后端接口

      1. 1 books/models.py 中设置表

        from django.db import models
        
        # Create your models here.
        from django.db import models
        
        
        class Books(models.Model):
            btitle = models.CharField(max_length=32)
            bpub_date = models.DateField()
            bread = models.IntegerField()
            bcomment = models.IntegerField()
            is_delete = models.BooleanField(default=False)
        
        
      2. urls.py 中设置路由

        1. app/urls.py子路由

          from django.urls import path
          from . import views
          
          urlpatterns = [
              path('book/', views.BooksView.as_view()),
          ]
          
          
        2. 项目下/urls.py

          """djangoProject URL Configuration
          
          The `urlpatterns` list routes URLs to views. For more information please see:
              https://docs.djangoproject.com/en/2.2/topics/http/urls/
          Examples:
          Function views
              1. Add an import:  from my_app import views
              2. Add a URL to urlpatterns:  path('', views.home, name='home')
          Class-based views
              1. Add an import:  from other_app.views import Home
              2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
          Including another URLconf
              1. Import the include() function: from django.urls import include, path
              2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
          """
          from django.contrib import admin
          from django.urls import path, include
          
          urlpatterns = [
              path('books/', include('books.urls')),
          ]
          
          
      3. book/views.py 视图函数

        from django.views import View
        from rest_framework.utils import json
        
        from .models import *
        
        
        # Create your views here.
        
        
        class BooksView(View):
            def get(self, request):
                books = Books.objects.filter(is_delete=False)
                book_list = books.values('id', 'btitle', 'bpub_date', 'bread', 'bcomment')
                book_list = list(book_list)
                data = {
                    "code": 0,
                    "msg": "success",
                    "books": book_list
                }
                return JsonResponse(data)
        
            def post(self, request):
                body_json = request.body.decode()
                # print(body_json)
                body_dict = json.loads(body_json)
                # btitle = body_dict.get('btitle')
                # print(btitle)
                # bpub_date = body_dict.get('bpub_date')
                # bread = body_dict.get('bread')
                # bcomment = body_dict.get('bcomment')
                # book = Books(btitle=btitle, bpub_date=bpub_date, bread=bread, bcomment=bcomment)
                # book.save()
                Books.objects.create(**body_dict)
                return JsonResponse({"code": 0, "msg": "success"})
        
            def put(self, request):
                body_json = request.body.decode()
                body_dict = json.loads(body_json)
                id = body_dict.get('id')
                btitle = body_dict.get('btitle')
                bpub_date = body_dict.get('bpub_date')
                bread = body_dict.get('bread')
                bcomment = body_dict.get('bcomment')
                book = Books.objects.get(id=id)
                book.btitle = btitle
                book.bpub_date = bpub_date
                book.bread = bread
                book.bcomment = bcomment
                book.save()
                return JsonResponse({"code": 0, "msg": "success"})
        
            def delete(self, request):
                body_json = request.body.decode()
                body_dict = json.loads(body_json)
                id = body_dict.get('id')
                book = Books.objects.get(id=id)
                book.is_delete = True
                book.save()
                return JsonResponse({"code": 0, "msg": "success"})
        
        
    2. 2.测试接口

      1. 测试获取所有图书接口

        http://192.168.56.100:8888/books/book
        

        在这里插入图片描述

      2. 测试创建图书接口

        添加数据
        {
        "btitle":"dsad","bpub_date":"2020-10-29","bread":100,"bcomment":10
        }
        

        在这里插入图片描述

      3. 测试修改图书接口

        http://192.168.56.100:8888/books/book/
        

        在这里插入图片描述

      4. 测试删除数据接口 逻辑删除

        http://192.168.56.100:8888/books/book/
        

    在这里插入图片描述
    在这里插入图片描述

    前端

    1. 图书管理vue页面
      1. http/apis.js 添加后端请求路由

             /* eslint-disable */
             import {get, post, put, del} from './index'
             // 书籍管理接口
             export const getBookList = (params, headers) => get("/books/book/", params, headers)
             export const addBook = (params, headers) => post("/books/book/", params, headers)
             export const editBook = (params, headers) => put("/books/book/", params, headers)
             export const delBook = (params, headers) => del("/books/book/", params, headers)
         ```
        

      1.1 http/index.js 添加后端请求路由

       /* eslint-disable */
      // 第一步:实例化axios对象,简单封装
      const axios = require('axios'); // 生成一个axios实例
      axios.defaults.baseURL = 'http://192.168.56.100:8888'; // 设置请求后端的URL地址
      axios.defaults.timeout = 10000; // axios请求超时时间
      axios.defaults.withCredentials = true;
      axios.defaults.headers['Content-Type'] = 'application/json'; // axios发送数据时使用json格式
      axios.defaults.transformRequest = data => JSON.stringify(data); // 发送数据前进行json格式化
      // 第二:设置拦截器
      /**
      * 请求拦截器(当前端发送请求给后端前进行拦截)
      * 例1:请求拦截器获取token设置到axios请求头中,所有请求接口都具有这个功能
      * 例2:到用户访问某一个页面,但是用户没有登录,前端页面自动跳转 /login/ 页面
      */
      axios.interceptors.request.use(config => {
      // 从localStorage中获取token
      // let token = localStorage.getItem('token');
      // 如果有token, 就把token设置到请求头中Authorization字段中
      // token && (config.headers.Authorization = token);
       return config;
      }, error => {
       return Promise.reject(error);
      });
      /**
      * 响应拦截器(当后端返回数据的时候进行拦截)
      * 例1:当后端返回状态码是401/403时,跳转到 /login/ 页面
      */
      axios.interceptors.response.use(response => {
      // 当响应码是 2xx 的情况, 进入这里
      // debugger
       return response.data;
      }, error => {
      // 当响应码不是 2xx 的情况, 进入这里
      // debugger
       return error
      });
      
      /**
      * get方法,对应get请求
      * @param {String} url [请求的url地址]
      * @param {Object} params [请求时携带的参数]
      */
      export function get(url, params, headers) {
       return new Promise((resolve, reject) => {
         // debugger
         axios.get(url, {params, headers}).then(res => {
           resolve(res)
         }).catch(err => {
           reject(err)
         })
       })
      }
      
      // 第三:根据上面分装好的axios对象,封装 get、post、put、delete请求
      /**
      * post方法,对应post请求
      * @param {String} url [请求的url地址]
      * @param {Object} params [请求时携带的参数]
      **/
      export function post(url, params, headers) {
       return new Promise((resolve, reject) => {
         axios.post(url, params, headers).then((res) => {
           resolve(res)
         }).catch((err) => {
      // debugger
           reject(err)
         })
       })
      }
      
      export function put(url, params, headers) {
       return new Promise((resolve, reject) => {
         axios.put(url, params, headers).then((res) => {
           resolve(res)
         }).catch((err) => {
      // debugger
           reject(err)
         })
       })
      }
      
      export function del(url, params, headers) {
       return new Promise((resolve, reject) => {
         axios.delete(url, {data: params, headers}).then((res) => {
           resolve(res)
         }).catch((err) => {
      // debugger
           reject(err)
         })
       })
      }
      
      export default axios;
      
      
      1. router/index.js 添加路由

        import Vue from 'vue'
        import Router from 'vue-router'
        import HelloWorld from '@/components/HelloWorld'
        import Books from '@/views/books/Books'
        import Father from "../components/Father";
        import Login from "../views/Login";
        
        
        Vue.use(Router)
        
        export default new Router({
          routes: [
            {path: '/', name: 'Books', component: Books}, // 图书增删改查
          ]
        })
        
        
        
      2. srcviewsooksBooks.vue 父组件

        <template>
          <div>
            <div>
              <h1>图书管理系统</h1>
              <div style="margin: 30px;">
                <button @click="addNew">新增图书</button>
                <BookEdit
                  v-show='dialogVisible'
                  :visible.sync='dialogVisible'
                  :data='editData'
                  @save='save'
                ></BookEdit>
              </div>
              <div>
                <table style='margin: auto; border: solid 1px black;'>
                  <tr>
                    <th>图书编号</th>
                    <th>图书名字</th>
                    <th>出版时间</th>
                    <th>阅读数</th>
                    <th>评论数</th>
                    <th>操作</th>
                  </tr>
                  <tr
                    v-for="(book, index) in books"
                    :key="book.id">
                    <td>{{book.id}}</td>
                    <td>{{book.btitle}}</td>
                    <td>{{book.bpub_date}}</td>
                    <td>{{book.bread}}</td>
                    <td>{{book.bcomment}}</td>
                    <td>
                      <button @click="edit(index)">修改</button>
                      <button @click="del(index)">删除</button>
                    </td>
                  </tr>
                </table>
              </div>
            </div>
        
          </div>
        
        
        </template>
        
        <script>
            import {getBookList, addBook, editBook, delBook} from '@/http/apis'
            import BookEdit from '@/components/BookEdit'
        
            export default {
                components: {
                    BookEdit
                },
        
                data() {
                    return {
                        dialogVisible: false,
                        books: [
                            // {
                            //     id: 3, btitle: "...", bpub_date: "2020-08-11", bread: 100, bcomment: 50
                            // }
                        ],
                        editData: { // 编辑的内容
                            btitle: "",
                            bpub_date: "",
                            bread: 0,
                            bcomment: 0
                        },
        
                    }
                },
                methods: {
                    addNew() {
                        this.editData = { // 初始化 编辑内容
                            btitle: "",
                            bpub_date: "",
                            bread: 100,
                            bcomment: 0
                        }
                        this.dialogVisible = true // 显示弹框
                    },
                    // 2.获取图书列表
                    get() {
                        getBookList().then((data) => {
                            console.log(123123123123)
                            console.log(data)
                            // books: [{btitle: "西游记", bpub_date: "2020-08-11", bread: 100,bcomment: 50}]
                            this.books = data.books
                        })
                    },
                    // 3.修改或者添加图书
                    save() {
                        // 根据editData中的id判断是更新还是新增
                    // debugger
                        console.log(this.editData)
                        if (this.editData.id) {
                            // 如果有id, 修改图书
                            // 修改请求
                            let params = this.editData
                            editBook(params).then((res) => {
                                console.log(res)
                                this.get()
                            })
                        } else {
                            // 增加图书
                            addBook(this.editData).then((res) => {
                                this.get()
                            })
                        }
                    },
                    // 点击修改弹出修改页面
                    edit(index) {
                        this.editData = JSON.parse(JSON.stringify(this.books[index])) // 复制this.books[index]的数据
                        // this.editData = this.books[index] //
                        this.dialogVisible = true
                    },
                    // 删除
                    del(index) {
                        let params = {
                            id: this.books[index].id
                        }
                        delBook(params).then((res) => {
                            console.log(res)
                            this.get()
                        })
                    },
                },
                created() {
                    this.get()
                }
            }
        
        
        </script>
        
        <style scoped>
          table tr td {
            width: 150px;
            border: solid 1px black;
          }
        
        </style>
        
    1. srccomponentsBookEdit.vue 子组件
        <template>
          <div>
            <el-dialog
              title="新增图书"
              :visible="visible"
            >
              <div><span>图书名称:</span>
                <el-input
                  class='elinput'
                  v-model="data.btitle"
                ></el-input>
              </div>
              <div><span>发布日期:</span>
                <el-input
                  class='elinput'
                  v-model="data.bpub_date"
                >
                </el-input>
              </div>
              <div><span>阅读量:</span>
                <el-input
                  class='elinput'
                  v-model="data.bread"
                ></el-input>
              </div>
              <div><span>评论量:</span>
                <el-input
                  class='elinput'
                  v-model="data.bcomment"
                ></el-input>
              </div>
              <el-button @click="cancel">取 消</el-button>
              <el-button
                type="primary"
                @click="addBook"
              >确 定
              </el-button>
            </el-dialog>
          </div>
        </template>
        
        <script>
            // import { addbook } from '@/http/apis'
            export default {
                props: ['data', 'visible'],
                data() {
                    return {}
                },
                methods: {
                    addBook() {
                        this.$emit('update:visible', false)
                        this.$emit('save')
                    },
                    cancel() {
                        this.$emit('update:visible', false)
                    }
                },
                mounted() {
                }
            }
        </script>
        
        <style scoped>
          .elinput {
            width: 220px;
            height: 40px;
          }
        </style>
    
    1. src/mian.js 引入ElementUI

      // 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'
      
      Vue.config.productionTip = false
      // 使用 elementui
      // npm i element-ui -S 安装到当前项目
      import ElementUI from 'element-ui'
      import 'element-ui/lib/theme-chalk/index.css'
      
      Vue.use(ElementUI)
      /* eslint-disable no-new */
      new Vue({
        el: '#app',
        router,
        components: {App},
        template: '<App/>'
      })
      
      
      Vue.config.productionTip = false
      // 使用 elementui
      // npm i element-ui -S 安装到当前项目
      import ElementUI from 'element-ui'
      import 'element-ui/lib/theme-chalk/index.css'
      
      Vue.use(ElementUI)
      /* eslint-disable no-new */
      new Vue({
        el: '#app',
        router,
        components: {App},
        template: '<App/>'
      })
      
      

    展示

    在这里插入图片描述
    在这里插入图片描述

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  • 原文地址:https://www.cnblogs.com/sq1995liu/p/14167068.html
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