发布于 2016-05-01 21:16:11 | 225 次阅读 | 评论: 0 | 来源: 网友投递

这里有新鲜出炉的Django教程,程序狗速度看过来!

Django Python WEB开发框架

Django是一个开放源代码的Web应用框架,由Python写成。采用了MVC的软件设计模式,即模型M,视图V和控制器C。它最初是被开发来用于管理劳伦斯出版集团旗下的一些以新闻内容为主的网站的,即是CMS(内容管理系统)软件。并于2005年7月在BSD许可证下发布。这套框架是以比利时的吉普赛爵士吉他手Django Reinhardt来命名的。


这篇文章主要介绍了Centos5.4+Nginx-0.8.50+UWSGI-0.9.6.2+Django-1.2.3搭建高性能WEB服务器的相关资料,需要的朋友可以参考下

之前一直使用Nginx+Fastcgi来搭建python web服务器,本文介绍Nginx+UWSGI组合来实现。uWSGI 是一个快速的、纯C语言开发的、自维护的、对开发者友好的WSGI服务器,旨在提供专业的 Python web应用发布和开发。它更符合python web的标准协议,速度要比Fastcgi要快、性能更加稳定。

一、安装平台
1、安装pcre



cd /home

mkdir -p /home/install/nginx && cd /home/install/nginx

wget http://ftp.exim.llorien.org/pcre/pcre-8.00.tar.gz

tar -zxvf pcre-8.00.tar.gz

cd pcre-8.00

./configure

make && make install

cd ..

2、安装Nginx



wget http://nginx.org/download/nginx-0.8.50.tar.gz

tar -zxvf nginx-0.8.50.tar.gz

cd nginx-0.8.50/

./configure --user=nobody --group=nobody --prefix=/usr/local/nginx --with-http_stub_status_module --with-cc-opt='-O3' --with-cpu-opt=opteron

make && make install

cd ..

3、安装python&Mysql-python



wget http://www.python.org/ftp/python/2.5.1/Python-2.5.1.tgz

tar -zxvf Python-2.5.1.tgz

cd Python-2.5.1

./configure && make && make install

echo "export PATH=\$PATH:/usr/local/bin" >> /etc/profile

source /etc/profile

4、安装MySql-python



cd ../

wget http://downloads.sourceforge.net/project/mysql-python/mysql-python/1.2.2/MySQL-python-1.2.2.tar.gz?r=&ts=1285248455&use_mirror=nchc

cd MySQL-python-1.2.2

python setup.py install

5、安装Django



wget http://www.djangoproject.com/download/1.2.3/tarball/

tar -zxvf Django-1.2.3.tar.gz

cd Django-1.2.3

python setup.py install

cd ..

6、安装uWSGI



wget http://projects.unbit.it/downloads/uwsgi-0.9.6.2.tar.gz

tar -zxvf uwsgi-0.9.6.2.tar.gz

cd uwsgi-0.9.6.2

make

cp uwsgi /usr/bin

二、平台配置

1、平台环境说明
  1.1、项目位置:/opt/www/Purgesys
   创建项目方法:



cd /opt/www

django-admin.py startproject Purgesys

  1.2、查看项目(出现以下文件结构说明项目已创建成功)
  #tree Purgesys



Purgesys

|-- __init__.py

|-- manage.py

|-- settings.py

`-- urls.py

2、Nginx相关配置

#cd /usr/local/nginx/conf
#vi django_uwsgi.conf


# Django project
server {
        listen  80;
        server_name purgesys.domain.com;


        location / {
            uwsgi_pass   127.0.0.1:9000;
            include     uwsgi_params;
            access_log  off;
        }

        location ^~ /static {
                root   /opt/www/Purgesys;
        }

        location ^~ /admin/ {
            uwsgi_pass   127.0.0.1:9000;
            include  uwsgi_params;
            access_log   off;
        }

        location ~* ^.+\.(mpg|avi|mp3|swf|zip|tgz|gz|rar|bz2|doc|xls|exe|ppt|txt|tar|mid|midi|wav|rtf|mpeg)$ {
            root   /opt/www/Purgesys/static;
            access_log   off;
        }

}

*Nginx-0.8.50默认已添加uwsgi输出头支持
include uwsgi_params;

#vi nginx.conf
追加子配置文件django_uwsgi.conf


http{ 
........ 
include django_uwsgi.conf; 
} 

3、UWSGI配置
#mkdir -p /home/uwsgi;cd /home/uwsgi
#mkdir -p /opt/www/logs
#echo "" > /opt/www/logs/django.log
#vi uwsgi.xml


<uwsgi>
 <socket>127.0.0.1:9000</socket>
 <listen>200</listen>
 <master>true</master>
 <pidfile>/usr/local/nginx/uwsgi.pid</pidfile>
 <processes>8</processes>
 <pythonpath>/opt/www/Purgesys</pythonpath>
 <pythonpath>/opt/www/</pythonpath>
 <module>django_wsgi</module>
 <profiler>true</profiler>
 <memory-report>true</memory-report>
 <enable-threads>true</enable-threads>
 <logdate>true</logdate>
 <limit-as>6048</limit-as>
 <daemonize>/opt/www/logs/django.log</daemonize>
</uwsgi>

4、创建应用模块
cd /opt/www/Purgesys
vi django_wsgi.py


import os
os.environ['DJANGO_SETTINGS_MODULE'] = 'Purgesys.settings'
import django.core.handlers.wsgi
application = django.core.handlers.wsgi.WSGIHandler()

5、启动服务
#/usr/bin/uwsgi -x /home/uwsgi/uwsgi.xml
#/usr/local/nginx/sbin/nginx

6、查看进程
#[liuts@webserver nginx]# ps -ef|grep uwsgi|grep -v grep



root     21652     1  0 17:12 ?        00:00:00 /usr/bin/uwsgi -x /home/uwsgi/uwsgi.xml

root     21653 21652  0 17:12 ?        00:00:00 /usr/bin/uwsgi -x /home/uwsgi/uwsgi.xml

root     21654 21652  0 17:12 ?        00:00:00 /usr/bin/uwsgi -x /home/uwsgi/uwsgi.xml

root     21655 21652  0 17:12 ?        00:00:00 /usr/bin/uwsgi -x /home/uwsgi/uwsgi.xml

root     21656 21652  0 17:12 ?        00:00:00 /usr/bin/uwsgi -x /home/uwsgi/uwsgi.xml

root     21657 21652  0 17:12 ?        00:00:00 /usr/bin/uwsgi -x /home/uwsgi/uwsgi.xml

root     21658 21652  0 17:12 ?        00:00:00 /usr/bin/uwsgi -x /home/uwsgi/uwsgi.xml

root     21659 21652  0 17:12 ?        00:00:00 /usr/bin/uwsgi -x /home/uwsgi/uwsgi.xml

root     21660 21652  0 17:12 ?        00:00:00 /usr/bin/uwsgi -x /home/uwsgi/uwsgi.xml

7、监听端口
#[liuts@webserver nginx]# netstat -an|grep 9000
引用

tcp 0 127.0.0.1:9000 0.0.0.0:* LISTEN

8、访问测试
输入http://serverip/

大功告成!

*附uwsgi启动脚本
#cd /home/uwsgi
#vi uwsgiserver.sh


#!/bin/bash
if [ $1 = start ];then
 psid=`ps aux|grep "uwsgi"|grep -v "grep"|wc -l`
 if [ $psid -gt 2 ];then
 echo "uwsgi is running!"
 exit 0
 else
 /usr/bin/uwsgi -x /home/uwsgi/uwsgi.xml
 fi
 echo "Start uwsgi service [OK]"
elif [ $1 = stop ];then
 killall -9 uwsgi
 echo "Stop uwsgi service [OK]"
elif [ $1 = restart ];then
 killall -9 uwsgi
 /usr/bin/uwsgi -x /home/uwsgi/uwsgi.xml
 echo "Restart uwsgi service [OK]"
else
 echo "Usages: sh uwsgiserver.sh [start|stop|restart]"
fi

#sh uwsgiserver.sh start
[uWSGI] parsing config file /home/uwsgi/uwsgi.xml
Start uwsgi service [OK]

如大家有什么疑问或感兴趣的话题可以通过weibo与我交流:http://t.qq.com/yorkoliu

以下是补充:

1、MySQL-python 安装错误如下
from setuptools import setup ImportError:

先安装
python ez_setup.py

在安装
python setup.py install

贴一下,方便其他兄弟了

2、我的nginx+uwsgi+django遇到大header的request,经常出现502,uwsgi报的是 invalid request header size,何解我的uwsgi配置为[uwsgi]socket = :8010master = truemodule = django_wsgiprocesses = 8home = /path/to/virtualenvharakiri = 20daemonize = /path/to/uwsgi.logpidfile = /path/to/uwsgi.pidpythonpath = /path/to/projectpythonpath = /path/to/uwsgibuffer-size = 32768reload-mercy = 8max-requests = 5000socket-timeout = 4

解决方法:大header可以修改nginx http head部分参数。

3、Nginx报502,但是uwsgi正常启动端口9000也正常监听。有可能是应用程序有错误导致。



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