django rest framework vue 实现用户登录详解

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 = axios

Vue.config.productionTip = false

Vue.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 definition
INSTALLED_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, see
https://docs.djangoproject.com/en/2.1/topics/settings/
For the full list of settings and their values, see
https://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 = True
DEBUG = False
ALLOWED_HOSTS = ['localhost', '127.0.0.1']
# Application definition
INSTALLED_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4
CORS_ALLOW_CREDENTIALS = True
CORS_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.js
STATICFILES_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：helloyyj
DATABASES = {
'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-validators

AUTH_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 = True
USE_L10N = True
USE_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

来源：https://www.cnblogs.com/BlueSkyyj/p/11214122.html