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