tornado zbar 二维码识别 ，配合nginx 反向代理，supervisord 监控

tornado zbar 二维码识别 ，配合nginx 反向代理，supervisord 监控

1、zbar识别二维码程序，python2.6.6

#!/usr/bin/env python

# coding: u8

import os

import zbar

import Image

import urllib

import uuid

import requests

import sys

import tornado.httpserver

import tornado.ioloop

import tornado.options

import tornado.web

import requests

import sys

import re

from tornado.options import define, options

define("port", default=9000, help="run on the given port", type=int)

def qrRead(url):

    proxies = {"http": "http://weibh:[email protected]:2012/",}

    uuid1 = uuid.uuid1()

    filename=str(uuid1)+".jpg"

    #print uuid1 

    #urllib.urlretrieve(url, filename)

    r=requests.get(url,proxies=proxies,stream=True)

    with open(filename, 'wb') as f:  

        for chunk in r.iter_content(chunk_size=1024):  

            if chunk: # filter out keep-alive new chunks  

                f.write(chunk)  

                f.flush()  

        f.close() 

    # create a reader

    scanner = zbar.ImageScanner()

 

    # configure the reader

    scanner.parse_config('enable')

 

    # obtain image data

    pil = Image.open(filename).convert('L')

    width, height = pil.size

    #pil.show()

    raw = pil.tostring()

 

    # wrap image data

    image = zbar.Image(width, height, 'Y800', raw)

 

    # scan the image for barcodes

    scanner.scan(image)

 

    tmpdata=''

    # extract results

    for symbol in image:

        # do something useful with results

        print symbol.type, '图片内容为:\n%s' % symbol.data

        tmpdata=tmpdata+symbol.data

         

     

    # clean up

    del(image)

    os.remove(filename)

    return tmpdata

    

class MainHandler(tornado.web.RequestHandler):

    def get(self):

        #self.write('hello'+sys.argv[1])

        self.set_header("Content-Type", "text/plain")

        #url = 'http://www.prepolino.ch/sprache/trennen/bilder/test.gif' 

        #qrRead(url)

        url=self.get_argument("url")    

        

        self.write(qrRead(url))   

    def post(self):

        self.set_header("Content-Type", "text/plain")

        #url = 'http://www.prepolino.ch/sprache/trennen/bilder/test.gif' 

        #qrRead(url)

        url=self.get_argument("url")    

        

        self.write(qrRead(url))    

    

def main(port):

    tornado.options.parse_command_line()

    application = tornado.web.Application([

        (r"/", MainHandler),

    ])

    http_server = tornado.httpserver.HTTPServer(application)

    http_server.listen(port)

    tornado.ioloop.IOLoop.instance().start()

if __name__ == '__main__':

    port=int(sys.argv[1])

    main(port)

    

 

 

2、下面给出我的supervisord的配置。请各位看官根据自己的实际情况修改对应的root用户。

;/etc/supervisord.conf

[unix_http_server]

file = /var/run/supervisor.sock

chmod = 0777

chown= root:dabao



[inet_http_server]

# Web管理界面设定

port=127.0.0.1:9001

username = dabao

password = dabao



[supervisorctl]

; 必须和'unix_http_server'里面的设定匹配

serverurl = unix:///var/run/supervisord.sock



[supervisord]

logfile=/var/log/supervisord.log ; (main log file;default $CWD/supervisord.log)

logfile_maxbytes=50MB       ; (max main logfile bytes b4 rotation;default 50MB)

logfile_backups=10          ; (num of main logfile rotation backups;default 10)

loglevel=info               ; (log level;default info; others: debug,warn,trace)

pidfile=/var/run/supervisord.pid ; (supervisord pidfile;default supervisord.pid)

nodaemon=true              ; (start in foreground if true;default false)

minfds=1024                 ; (min. avail startup file descriptors;default 1024)

minprocs=200                ; (min. avail process descriptors;default 200)

user=root                 ; (default is current user, required if root)

childlogdir=/var/log/            ; ('AUTO' child log dir, default $TEMP)



[rpcinterface:supervisor]

supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface









[program:groupworker]

command=python3 /home/dabao/8887.py 88%(process_num)02d

process_name=%(program_name)s_%(process_num)02d

numprocs=3

numprocs_start=1

autostart = true

startsecs = 5

redirect_stderr = true

stdout_logfile_maxbytes = 20MB

stdoiut_logfile_backups = 20

stdout_logfile = /var/log/groupworker.log

 3、最后第三个配置文件是nginx的反向代理配置。

nginx 1.4.4

/etc/nginx/conf.d/tornado.conf	



upstream tornado {

		server 127.0.0.1:8887;

		server 127.0.0.1:8888;

		server 127.0.0.1:8889;

	}	 

	server {

		listen 8090;

		location / {

			proxy_pass_header Server;

			proxy_set_header Host $http_host;

			proxy_set_header X-Real-IP $remote_addr;

			proxy_set_header X-Scheme $scheme;

			proxy_pass http://tornado;

		}

	}