|
加上你的准备的时间，估计30分钟完全够用了，因为最近在做爬虫管理平台，想着快速开发，没想到python web平台下有这么非常方便的框架，简洁而优雅。将自己的一些坑总结出来，方便给大家的使用。准备环境：系统：win7 or ubuntudjango版本：1.8.5python版本：2.7.6数据库：自带的SQLLITE3IDE: sublime text 3===========================Read ? go===================================一，选择文件夹，用命令行创建文件夹sudo django-admin startproject mysite可以看到mysite文件夹，用命令行切换下mysite文件夹里面情况.├── manage.py└── mysite ├── __init__.py ├── settings.py ├── urls.py └── wsgi.py1 directory, 5 files而manage.py就是我们管理mysite文件夹管理命令文件，用sublime text 3打开该文件夹。二，在site下建立app ，输入命令：sudo python manage.py startapp spiderinfo这个时候文件夹的情况如下： 2015-10-18 17:09:24 ☆ BruceUbuntu in ~/Desktop/djangoprojects/mysite○ → tree.├── manage.py├── mysite│ ├── __init__.py│ ├── __init__.pyc│ ├── settings.py│ ├── settings.pyc│ ├── urls.py│ └── wsgi.py└── spiderinfo ├── admin.py ├── __init__.py ├── migrations │ └── __init__.py ├── models.py ├── tests.py └── views.py三，app情况已经创建好了，django自带了ORM，我们只需要关注代码层的情况就可以了。这个时候打开spiderinfo文件夹下的models.py，我们来简单的设计两张表spider爬虫表，spiderconfig爬虫配置表代码如下：from django.db import models# Create your models here.class SpiderConfig(models.Model): '''docstring for SpiderConfig''' cid = models.AutoField(primary_key = True) configname = models.CharField(max_length = 200) createtime = models.DateTimeField()class Spider(models.Model): Sid = models.AutoField(primary_key = True) SpiderName = models.CharField(max_length=200) Config = models.ForeignKey(SpiderConfig,to_field='cid') Enable = models.BooleanField(default = True) 每个Spider有一个SpiderConfig配置方案，这样就有一个主外键的关系，我们先将写好的关系同步到数据库：python manage.py migrate这个时候会自动产生脚本：Operations to perform: Synchronize unmigrated apps: staticfiles, messages Apply all migrations: admin, contenttypes, auth, sessionsSynchronizing apps without migrations: Creating tables... Running deferred SQL... Installing custom SQL...Running migrations: Rendering model states... DONE Applying contenttypes.0001_initial... OK Applying auth.0001_initial... OK Applying admin.0001_initial... OK Applying contenttypes.0002_remove_content_type_name... OK Applying auth.0002_alter_permission_name_max_length... OK Applying auth.0003_alter_user_email_max_length... OK Applying auth.0004_alter_user_username_opts... OK Applying auth.0005_alter_user_last_login_null... OK Applying auth.0006_require_contenttypes_0002... OK Applying sessions.0001_initial... OK同步到数据库：python manage.py syncdb这个时候会产生同步的过程○ → python manage.py syncdb/usr/local/lib/python2.7/dist-packages/django/core/management/commands/syncdb.py:24: RemovedInDjango19Warning: The syncdb command will be removed in Django 1.9 warnings.warn('The syncdb command will be removed in Django 1.9', RemovedInDjango19Warning)Operations to perform: Synchronize unmigrated apps: staticfiles, messages Apply all migrations: admin, contenttypes, auth, sessionsSynchronizing apps without migrations: Creating tables... Running deferred SQL... Installing custom SQL...Running migrations: No migrations to apply.You have installed Django's auth system, and don't have any superusers defined.Would you like to create one now? (yes/no): yesUsername (leave blank to use 'bruce'): Email address: [email protected] Password: Password (again): Superuser created successfully.这个时候会让你输入管理界面的用户名密码，正常输入就可以了。四，运行server，打开从网页中打开。python manage.py runserver打开server,输入网址：http://127.0.0.1:8000/admin/我们就可以在后台中看到管理界面了：五，管理的后台看不到里面的内容，这个时候我们要编辑admin.py的内容，在后台管理界面来显示代码：from django.contrib import adminimport spiderinfo.models as app# Register your models here.class SpiderConfigAdmin(admin.ModelAdmin): #要显示的字段列表 list_display = ['Cid','Configname','Createtime'] #要搜索的字段列表 search_fields = ['Configname','Createtime'] list_filter = ['Createtime'] #max show count #list_max_show_all = 100#Config_idclass SpiderAdmin(admin.ModelAdmin): list_display =['SpiderName','Config','Enable'] #这里特别说明，比如我要根据外键的ConfigName来在Spider实体中的 search_fields = ['SpiderName','Config__Configname'] list_filter = ['Enable','SpiderName']admin.site.register(app.Spider ,SpiderAdmin)admin.site.register(app.SpiderConfig , SpiderConfigAdmin) 最的一步，在settings.py里面为我们的应用注册效果如下：总结：说30分钟，其实只是建立一个快速搭建的界面，django写的这么优雅和简洁，30分钟怎么可能了解全部呢，一个好的东西是需要花时间好好学习的。
(以上内容不代表本站观点。) --------------------------------- |
本網站是"非商業"(non-commercial)。
