Django微信小程序后台开发教程的实现

<!--index.wxml-->
<view class="container">
 <input type="text" class="input" bindinput='input'/>
 <button bindtap="calculate">cal</button>
 <view>{{ result }}</view>
</view>

/**index.wxss**/
.input {
 border: 1px solid black;
 margin-bottom: 5px;
}

//index.js
//获取应用实例
const app = getApp()

Page({
 data: {
  result: "暂无结果",
  formula: ''
 },
 //事件处理函数
 calculate: function () {
  wx.request({
   url: 'https://shatter.xin/calculate',
   data: {
    formula: this.data.formula
   },
   success: res => {
    if (res.statusCode == 200) {
     this.setData({
      result: res.data
     })
    }
   }
  })
 },
 input: function (e) {
  this.setData({
   formula: e.detail.value
  })
 }
})

pip3 install django

django-admin startproject calculator
cd calculator

cd calculator
python3 manage.py runserver 0.0.0.0:8000

python3 manage.py startapp CalculateApi

INSTALLED_APPS = [
  'django.contrib.admin',
  'django.contrib.auth',
  'django.contrib.contenttypes',
  'django.contrib.sessions',
  'django.contrib.messages',
  'django.contrib.staticfiles',
  'CalculateApi'
]

from django.contrib import admin
from django.urls import path
from django.conf.urls import url, include

urlpatterns = [
  path('admin/', admin.site.urls),
  url('^', include('CalculateApi.urls')),
]

from django.conf.urls import url
from . import views

urlpatterns = [
  url('calculate', views.calculate)
]

from django.http import HttpResponse


def calculate(request):
  formula = request.GET['formula']
  try:
    result = eval(formula, {})
  except:
    result = 'Error formula'
  return HttpResponse(result)

pip3 install uwsgi

touch uwsgi.ini
vi uwsgi.ini

[uwsgi]
# django项目监听的socket文件（可以使用端口代替）
socket = ./calculator.sock
# django项目所在目录
chdir = .
# django项目wsgi文件
wsgi-file = ./calculator/wsgi.py

master = true
processes = 2
threads = 4
vacuum = true

# 通过touch reload可以重启uwsgi服务器
touch-reload = ./reload
# 日志输出
daemonize = calculator.log

uwsgi --ini uwsgi.ini
touch reload

sudo apt-get install nginx
cd /etc/nginx

vi nginx.conf

user root;

cd conf.d
sudo touch calculator.conf
sudo vi calculator.conf

server{
  listen     80;
  server_name  服务器ip;
  charset UTF-8;

  client_max_body_size 75M;

  location ~ ^/calculate {
  		// replace "path" to the path of your project
    uwsgi_pass unix:///"path"/calculator/calculator.sock;
    include /etc/nginx/uwsgi_params;
  }
}

sudo service nginx restart

server{
  listen     443;
  server_name  your.domain;
  ssl on;
  ssl_certificate path/to/your/ssl.pem;
  ssl_certificate_key path/to/your/ssl.key;
  ssl_session_timeout 5m;
  ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
  ssl_prefer_server_ciphers on;

  charset UTF-8;

  client_max_body_size 75M;

  location ~ ^/calculate {
    uwsgi_pass unix:///path/to/calculator/calculator.sock;
    include /etc/nginx/uwsgi_params;
  }
}