Python生成验证码实例
程序员文章站
2023-11-26 16:54:22
本文实例展示了python生成验证码的方法,具有很好的实用价值。分享给大家供大家参考。具体实现方法如下:
前台页面代码如下:
<...
本文实例展示了python生成验证码的方法,具有很好的实用价值。分享给大家供大家参考。具体实现方法如下:
前台页面代码如下:
<div> <img id="authcode_img" alt="验证码" src="/registration/makeimage/{{time}}"/> <!-- time 任意随机数(时间戳),防止页面缓存 导致验证码不能更新--> <a href="javascript:refreshcode();" rel="external nofollow" style="color:blue;">看不清换一张</a> </div> <script> function refreshcode() { $('authcode_img').src = "/registration/makeimage/" + math.random(); } </script>
后台程序如下:
import stringio import image, imagedraw, imagefont, random #相应的模块需要安装 from xxx.settings import authcode_font #请确保改字体存在 def make_image(request): mp = hashlib.md5() mp.update(str(datetime.datetime.now())+str(random.random())) mp_src = mp.hexdigest() rand_str = mp_src[0:6] font = imagefont.truetype(authcode_font, 25) width = 75 height = 30 im = image.new('rgb',(width,height),'#%s'%mp_src[-7:-1]) draw = imagedraw.draw(im) draw.line((random.randint(0,width),random.randint(0,height),random.randint(0,width),random.randint(0,height))) draw.line((random.randint(0,width),random.randint(0,height),random.randint(0,width),random.randint(0,height))) draw.line((random.randint(0,width),random.randint(0,height),random.randint(0,width),random.randint(0,height))) draw.line((random.randint(0,width),random.randint(0,height),random.randint(0,width),random.randint(0,height))) draw.line((random.randint(0,width),random.randint(0,height),random.randint(0,width),random.randint(0,height))) draw.text((5,2), rand_str, font=font) del draw buffer = stringio.stringio() im.save(buffer,'jpeg') httpresponse = httpresponse(content=buffer.getvalue(),mimetype="image/jpeg") request.session['auth_code'] = rand_str return httpresponse
程序效果如下:
上一篇: Python3基础之基本运算符概述
下一篇: 基于Python的身份证号码自动生成程序