django rest framework vue 实现用户登录详解

前端  /  管理员 发布于 2年前   345

后端代码就不介绍了，可以参考 django rest framework 实现用户登录认证

这里介绍一下前端代码，和前后端的联调过程

在components下新建login.vue 文件

<template> <div class="login">  <el-form label-width="80px">  <el-form-item label="用户名">   <el-input v-model="form.username"></el-input>  </el-form-item>  <el-form-item label="密码">   <el-input v-model="form.password" type="password"></el-input>  </el-form-item>  <el-form-item>   <el-button type="primary" @click="onLogin">登录</el-button>   <el-button>取消</el-button>  </el-form-item>  </el-form> </div></template><script>import axios from 'axios';export default { name: "login", data() { return {  form: {  username: null,  password: null  } } }, methods: { onLogin() {  axios.post('http://127.0.0.1:8000/api/v1/auth/',this.form,{withCredentials:true}).then((res)=> {  console.log(res);  this.$router.go({path:'/'});  }); } }}</script><style scoped>.login { width: 50%; margin: 0 auto;}</style>

修改rounter下index.js

import Vue from 'vue'import Router from 'vue-router'import HelloWorld from '@/components/HelloWorld'import test from '@/components/test'import runoob from '@/components/runoob'import vhtml from '@/components/vhtml'import Login from '@/components/login'Vue.use(Router)var router = new Router({ routes: [ {  path: '/',  name: 'HelloWorld',  component: HelloWorld }, {  path: '/test',  name: 'test',  component: test } , {  path: '/login',  name: 'login',  component: Login } , {  path: '/runoob',  name: 'runoob',  component: runoob }, {  path: '/vhtml',  name: 'vhtml',  component: vhtml }, ]})router.beforeEach((to,from,next)=> { if(to.path==='/login') { window.hideLogin = false; } // if(!window.token&&to.path!=='/login') { // router.go('/login'); // }else { // next(); // } next();})export default router;

修改项目 man.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 ElementUI from 'element-ui'import axios from 'axios'Vue.prototype.axios = axiosVue.config.productionTip = falseVue.use(ElementUI); // 引入elementui/* eslint-disable no-new */new Vue({ el: '#app', router, components: { App }, template: '<App/>'})

启动项目 npm run dev

输入url,访问查看页面

启动服务端

浏览器打开检查功能

数据用户名和密码，点击登录 如下图。

因为还没做登录跳转页。所以 先通过这种方式，检验是否登录成功。

查看后台返回信息

遇到的问题：

1、跨域问题

因为vue 和django项目是两个前后端独立的项目，分别启动后，存在端口不一致的跨域问题。

如这里vue端口是8080，django 是8000,会一直存在找不到服务的问题。

解决方法：修改jango settings.py 文件

首先安装 corsheaders

# 安装pip install django-cors-headers

# 添加 corsheaders 应用# Application definitionINSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'rest_framework', 'api', 'corsheaders', # 解决跨域问题 修改1]

# 中间层设置# 添加如下MIDDLEWARE = [  ... 'corsheaders.middleware.CorsMiddleware', 'django.middleware.common.CommonMiddleware', ...]

# CORS 设置跨域域名 配置白名单CORS_ORIGIN_WHITELIST = [ "https://example.com", "https://sub.example.com", "http://localhost:8080", "http://localhost:8000", "http://127.0.0.1:8000"]

#直接允许所有主机跨域CORS_ORIGIN_ALLOW_ALL = True 默认为False

CORS_ALLOW_CREDENTIALS = True # 允许携带cookie

# 下面这两个设置 经测试无用 ## # 解决跨域问题 修改5# CORS_ALLOW_METHODS = (#  'DELETE',#  'GET',#  'OPTIONS',#  'PATCH',#  'POST',#  'PUT',#  'VIEW',# )# # 解决跨域问题 修改6# CORS_ALLOW_HEADERS = (#  'XMLHttpRequest',#  'X_FILENAME',#  'accept-encoding',#  'authorization',#  'content-type',#  'dnt',#  'origin',#  'user-agent',#  'x-csrftoken',#  'x-requested-with',#  'Pragma',# )

settings.py文件

"""Django settings for logintest project.Generated by 'django-admin startproject' using Django 2.1.2.For more information on this file, seehttps://docs.djangoproject.com/en/2.1/topics/settings/For the full list of settings and their values, seehttps://docs.djangoproject.com/en/2.1/ref/settings/"""import os# Build paths inside the project like this: os.path.join(BASE_DIR, ...)BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))# Quick-start development settings - unsuitable for production# See https://docs.djangoproject.com/en/2.1/howto/deployment/checklist/# SECURITY WARNING: keep the secret key used in production secret!SECRET_KEY = 'zj9a#c4al&@_up8^g46ke44a1l%p^_wa1_5xgx60ertwu9$y(%'# SECURITY WARNING: don't run with debug turned on in production!# DEBUG = TrueDEBUG = FalseALLOWED_HOSTS = ['localhost', '127.0.0.1']# Application definitionINSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'rest_framework', 'api', 'corsheaders', # 解决跨域问题 修改1]MIDDLEWARE = [ 'django.middleware.security.SecurityMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', 'corsheaders.middleware.CorsMiddleware', # 解决跨域问题 修改2 'django.middleware.common.CommonMiddleware', # 注意顺序 解决跨域问题 修改3]ROOT_URLCONF = 'logintest.urls'## #跨域增加忽略 修改4CORS_ALLOW_CREDENTIALS = TrueCORS_ORIGIN_ALLOW_ALL = True# # CORS_ORIGIN_WHITELIST = (# #  '*'# # )CORS_ORIGIN_WHITELIST = [ "https://example.com", "https://sub.example.com", "http://localhost:8080", "http://localhost:8000", "http://127.0.0.1:8000"]### # 解决跨域问题 修改5# CORS_ALLOW_METHODS = (#  'DELETE',#  'GET',#  'OPTIONS',#  'PATCH',#  'POST',#  'PUT',#  'VIEW',# )# # 解决跨域问题 修改6# CORS_ALLOW_HEADERS = (#  'XMLHttpRequest',#  'X_FILENAME',#  'accept-encoding',#  'authorization',#  'content-type',#  'dnt',#  'origin',#  'user-agent',#  'x-csrftoken',#  'x-requested-with',#  'Pragma',# )TEMPLATES = [ {  'BACKEND': 'django.template.backends.django.DjangoTemplates',  # 'DIRS': [],  'DIRS': ['vuefront/dist'], # 修改1  'APP_DIRS': True,  'OPTIONS': {   'context_processors': [    'django.template.context_processors.debug',    'django.template.context_processors.request',    'django.contrib.auth.context_processors.auth',    'django.contrib.messages.context_processors.messages',   ],  }, },]# 新增2# Add for vue.jsSTATICFILES_DIRS = [ os.path.join(BASE_DIR, "vuefront/dist/static"),]WSGI_APPLICATION = 'logintest.wsgi.application'# Database# https://docs.djangoproject.com/en/2.1/ref/settings/#databases# DATABASES = {#  'default': {#   'ENGINE': 'django.db.backends.sqlite3',#   'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),#  }# }# MySQL adil 密码：helloyyjDATABASES = { 'default':{  'ENGINE':'django.db.backends.mysql',  'HOST':'127.0.0.1',  'PORT':'3306',  'NAME':'pyweb', # 数据库名  'USER':'adil',  'PASSWORD':'helloyyj',  'OPTIONS':{   'sql_mode': 'traditional'  }, }}# Password validation# https://docs.djangoproject.com/en/2.1/ref/settings/#auth-password-validatorsAUTH_PASSWORD_VALIDATORS = [ {  'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator', }, {  'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator', }, {  'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator', }, {  'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator', },]# Internationalization# https://docs.djangoproject.com/en/2.1/topics/i18n/# LANGUAGE_CODE = 'en-us'## TIME_ZONE = 'UTC'LANGUAGE_CODE = 'zh-Hans'TIME_ZONE = 'Asia/Shanghai'USE_I18N = TrueUSE_L10N = TrueUSE_TZ = True# Static files (CSS, JavaScript, Images)# https://docs.djangoproject.com/en/2.1/howto/static-files/STATIC_URL = '/static/'

更多设置可以参考  https://github.com/ottoyiu/django-cors-headers/

2、ESlint代码检测，启动vue时系统报错错误警告

解决方式

1、如果对自己信不过。最好的办法就是创建项目的时候不要ESlint 直接N

2、注释掉ESlint

在自己的项目目录下build.js――webpack.base.conf.js文件里面有段代码注释掉就行

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。