Django from getting started to giving up 001. Preliminary study

Environment : To enable the server to develop multiple applications, the environment version does not affect each other, using virtualenv to create isolated isolated environments for development use.

#安装virtualenv:

[Email protected] django]# PIP3 install virtualenv

#创建一个虚拟环境

[Email protected] django]# virtualenv django_env

Using base prefix '/usr/local '

New Python executable in/django/django_env/bin/python3.5

Also Creating executable In/django/django_env/bin/python

Installing Setuptools, Pip, Wheel...done.

#使用虚拟环境

[Email protected] django]# source Django_env/bin/activate

#在虚拟环境下安装django

(django_env) [Email protected] django]# PIP3 install django==1.10

Terms:

The role of project is to provide configuration files, such as where to define database connection information, installed app lists, Template_dirs, and so on.

An app is a set of Django features, often including models and views, in the way Python's package structure exists.

For example, Django itself has some apps, such as a comment system and an automated management interface. One key point of the app is that they are easily ported to other project and reused by multiple project.

#1. Create a project

(django_env) [Email protected] django]# django-admin startproject my_project

After you create a project, several files are generated

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#2. Create App app, here are two ways to

(django_env) [Email protected] my_project]# django-admin Startapp First_app

(django_env) [Email protected] my_project]# Python3 manage.py Startapp Second_app

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#3. Connect to the database, use Pymsql to connect mysqldb in Python3, or you will encounter the pit below

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Workaround:

1). Install the Pymysql wheel:

(django_env) [[email protected] my_project]# PIP3 install Pymysql

2). After successful execution, open __init__.py and add the following:

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3). Modify settings.py:

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4). Synchronize the database:

This method creates a table, and when you add a class to the models.py, you can run it to automatically create a table in the database without creating it manually.

(django_env) [[email protected] my_project]#python3 manage.py Migrate

After the database synchronization succeeds, some tables are generated in the connected library.

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#4. Use your own development server and use it only for debugging at development time, not recommended online

(django_env) [Email protected] my_project]# Python3 manage.py runserver 0.0.0.0:8000

Performing system checks ...

System Check identified no issues (0 silenced).

January 04, 2017-02:24:16

Django version 1.10, using Settings ' my_project.settings '

Starting development Server at Http://0.0.0.0:8000/

Quit the server with Control-c.

[04/jan/2017 02:25:15] "get/http/1.1" 200 1767

Not Found:/favicon.ico

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#创建后台登录账号密码

(django_env) [Email protected] my_project]# Python3 manage.py createsuperuser

Username (leave blank to use ' root '): admin

Email address: [Email protected]

Password:

Password (again):

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The true face of Lushan

This article is from the "unplug the Operational Space" blog, please be sure to keep this source http://zhangdj.blog.51cto.com/9210512/1890535

Django from getting started to giving up 001. Preliminary study