tornado zbar 二維碼識別 ，配合nginx 反向代理，supervisord 監控

tornado zbar 二維碼識別 ，配合nginx 反向代理，supervisord 監控

一、zbar識別二維碼程序，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:loveme@134.44.36.120:2012/",}
    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, '圖片內容爲:\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)
    

 

 

二、下面給出個人supervisord的配置。請各位看官根據本身的實際狀況修改對應的root用戶。

;/etc/supervisord.conf
[unix_http_server]
file = /var/run/supervisor.sock
chmod = 0777
chown= root:dabao

[inet_http_server]
# Web管理界面設定
port=127.0.0.1:9001
username = dabao
password = dabao

[supervisorctl]
; 必須和'unix_http_server'裏面的設定匹配
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

 三、最後第三個配置文件是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;
		}
	}