1.场景
- 将URL动态生成二维码前端展示(微信支付等,)--》
1.静态文件路径访问
返回URL_name,(a标签,src 静态路由访问)
2.流传输,前端渲染
二进制流返回前端,前端根据二进制流编码类型显示
3.前端js生成
后台获取到微信支付的code_url,前端js将code_url生成二维码,并渲染
- 实际代码
使用python_web 框架--》tornado
manager.py
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import os
import asyncio
import tornado.ioloop
import tornado.httpserver
import tornado.web
import tornado.options
from tornado.options import define, options, parse_command_line
from apps import UrlHandler, Url2Handler, Url3Handler
define( "port" , default = 8000 , type = int )
def create_app():
settings = {
"template_path" : os.path.join(os.path.dirname(__file__), "templates" ),
"static_path" : os.path.join(os.path.dirname(__file__), "static" ),
}
application = tornado.web.Application(
handlers = [
(r "/url" , UrlHandler),
(r "/url2" , Url2Handler),
(r "/url3" , Url3Handler),
],
debug = True ,
* * settings,
)
return application
if __name__ = = '__main__' :
parse_command_line()
app = create_app()
server = tornado.httpserver.HTTPServer(app)
server.listen(options.port)
asyncio.get_event_loop().run_forever()
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apps.py
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import tornado.web
from manager_handler import gen_qrcode, gen_qrcode_obj,gen_qrcode_buf
class BaseHandler(tornado.web.RequestHandler):
pass
class UrlHandler(BaseHandler):
def get( self ):
# 获取链接
self .render( 'qrcode.html' , title = 'url' , data = 'URL-提交' , img_stream = '')
async def post( self ):
# 生成二维码
url = self .get_argument( 'url_str' )
# URL转换二维码
img_stream = gen_qrcode(url)
await self .render( 'qrcode.html' , title = 'qrcode' , data = '扫码支付' , img_stream = img_stream)
class Url2Handler(BaseHandler):
def get( self ):
# 获取链接
self .render( 'qrcode.html' , title = 'url' , data = 'URL-提交' , img_stream = '')
async def post( self ):
# 生成二维码
url = self .get_argument( 'url_str' )
# URL转换二维码
img_stream = gen_qrcode_obj(url = url)
# await self.render('qrcode.html', id="codetool">
manager_handler.py
base.html
qrcode.html
以上就是python-图片流传输的思路及示例(url转换二维码)的详细内容,更多关于python 图片流传输的资料请关注服务器之家其它相关文章! 原文链接:https://www.cnblogs.com/yblackd/p/13224404.html 延伸 · 阅读
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