python一键生成验证码并部署（django)-凯发app官方网站

工具类代码

# coding=utf-8

import random

from io import bytesio

from pil import image,imagefont,imagedraw

def getcode():

    source = 'qwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnm1234567890'

    code = ""

    for i in range(4):

        code = random.choice(source)

    return code

def set_color():

    return random.randrange(255)

def send_code_img(request):

    color_bg = (set_color(), set_color(), set_color())

    image = image.new("rgb", size=(150, 50), color=color_bg)

    imagedraw = imagedraw.draw(image, "rgb")

    font = imagefont.truetype("/static/font/alger.ttf", 55)

    yanzhen_code = getcode()

    imagedraw.text(xy=(0, 0), text=yanzhen_code, font=font, fill=(255, 255, 255))

    request.session["verify_code"]=yanzhen_code

    for i in range(800):

        # 绘制干扰点

        imagedraw.point(xy=(random.randrange(150), random.randrange(50)), fill=(set_color(), set_color(), set_color()))

    # image.show()

    fp = bytesio()

    image.save(fp,"png")

    return fp.getvalue()

if __name__=="__main__":

    pass

views的代码

from django.http import httpresponse, httpresponseredirect

from django.shortcuts import render, redirect

from django.urls import reverse

from django.views.decorators.csrf import csrf_exempt

from app.tools.yanzhen import send_code_img

def mine(request):

    return httpresponse("欢迎登录")

@csrf_exempt

def login(request):

    if request.method == "get":

        return render(request, "yanzhen.html")

    elif request.method == "post":

        post_code = request.post.get("get_code")

        verify_code = request.session.get("verify_code")

        if post_code.lower() != verify_code.lower():

            return redirect(reverse("app:login"))

        return redirect(reverse("app:mine"))

def get_code_img(request):

    code_img = send_code_img(request)

    return httpresponse(code_img, content_type='image/png')

html代码

    

    {% load static %}