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建立时间:2006年5月29日 |
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 [Pylons学习]Pylons实战（一） 
软件技术
lhwork 发表于 2007/1/10 9:49:54 |
| 时候不早了，废话也不多说了。开始吧！1. paster create --template=pylons minispider2. MySQL，建立数据库minispider
500)this.width=500'> CREATE TABLE minispider.titleinfo500)this.width=500'>( id INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,500)this.width=500'> link VARCHAR ( 255 ) NOT NULL DEFAULT '' ,500)this.width=500'> description VARCHAR ( 255 ) NOT NULL DEFAULT '' ,500)this.width=500'> sitename VARCHAR ( 255 ) NOT NULL DEFAULT '' ,500)this.width=500'> updatetime TIMESTAMP NOT NULL DEFAULT 0 ,500)this.width=500'> PRIMARY KEY (id)500)this.width=500'>) 3. The Model1) 修改development.ini，代码如下：
1500)this.width=500'># 2500)this.width=500'># minispider - Pylons development environment configuration 3500)this.width=500'># 4500)this.width=500'># The %(here)s variable will be replaced with the parent directory of this file 5500)this.width=500'># 6500)this.width=500'>[DEFAULT] 7500)this.width=500'>debug = true 8500)this.width=500'>email_to = you@yourdomain.com 9500)this.width=500'>smtp_server = localhost10500)this.width=500'>error_email_from = paste@localhost11500)this.width=500'>12500)this.width=500'>[server:main]13500)this.width=500'>use = egg:Paste#http14500)this.width=500'>host = 0.0.0.015500)this.width=500'>port = 500016500)this.width=500'>17500)this.width=500'>[app:main]18500)this.width=500'>use = egg:minispider19500)this.width=500'>cache_dir = %(here)s/data20500)this.width=500'>session_key = minispider21500)this.width=500'>session_secret = somesecret22500)this.width=500'>23500)this.width=500'># If you'd like to fine-tune the individual locations of the cache data dirs24500)this.width=500'># for Myghty, the Cache data, or the Session saves, un-comment the desired25500)this.width=500'># settings here:26500)this.width=500'>#myghty_data_dir = %(here)s/data/templates27500)this.width=500'>#cache_data_dir = %(here)s/data/cache28500)this.width=500'>#session_data_dir = %(here)s/data/sessions29500)this.width=500'>30500)this.width=500'># Specify the database for SQLObject to use via pylons.database.PackageHub.31500)this.width=500'># %(here) may include a ':' character on Windows environments; this can32500)this.width=500'># invalidate the URI when specifying a SQLite db via path name. Refer to the33500)this.width=500'># SQLObject documentation for a special syntax to preserve the URI.34500)this.width=500'>#sqlobject.dburi = sqlite:%(here)s/somedb.db35500)this.width=500'>sqlobject.dburi = mysql://root:123456@localhost:3306/minispider36500)this.width=500'>37500)this.width=500'># WARNING: *THE LINE BELOW MUST BE UNCOMMENTED ON A PRODUCTION ENVIRONMENT*38500)this.width=500'># Debug mode will enable the interactive debugging tool, allowing ANYONE to39500)this.width=500'># execute malicious code after an exception is raised.40500)this.width=500'>#set debug = false第35行为添加的部分。2）在models目录下，建立msmodel.py，代码如下：
500)this.width=500'>from sqlobject import *500)this.width=500'>from pylons.database import PackageHub500)this.width=500'>hub = PackageHub("minispider")500)this.width=500'>__connection__ = hub500)this.width=500'>500)this.width=500'>class titleinfo(SQLObject):500)this.width=500'> link = StringCol(length=255)500)this.width=500'> description = StringCol(length=255)500)this.width=500'> sitename = StringCol(length=255)500)this.width=500'> updatetime = DateTimeCol()修改__init__.py，代码如下：
500)this.width=500'>## NOTE500)this.width=500'>## If you plan on using SQLObject, the following should be un-commented and provides500)this.width=500'>## a starting point for setting up your schema500)this.width=500'>500)this.width=500'>#from sqlobject import *500)this.width=500'>#from pylons.database import PackageHub500)this.width=500'>#hub = PackageHub("minispider")500)this.width=500'>#__connection__ = hub500)this.width=500'>500)this.width=500'># You should then import your SQLObject classes500)this.width=500'># from myclass import MyDataClass500)this.width=500'>from msmodel import titleinfo4.The view在templates文件夹下建立ms文件夹，在ms文件中建立list.myt，代码如下：
500)this.width=500'><html>500)this.width=500'><head>500)this.width=500'><title>Generated by Mini Spider v0.1</title>500)this.width=500'></head>500)this.width=500'><body>500)this.width=500'><table width="80%" border="0">500)this.width=500'> <tr>500)this.width=500'> <td width="60%"><strong>What</strong></td>500)this.width=500'> <td width="20%"><strong>Where</strong></td>500)this.width=500'> <td width="20%"><strong>When</strong></td>500)this.width=500'> </tr>500)this.width=500'>% for ti in c.titleinfo:500)this.width=500'> <tr>500)this.width=500'> <td><a href="<% ti.link %>" target="_blank"><% ti.description %></a></td>500)this.width=500'> <td><% ti.sitename %></td>500)this.width=500'> <td><% ti.updatetime %></td>500)this.width=500'> </tr>500)this.width=500'>% #endfor500)this.width=500'></table>500)this.width=500'></body>500)this.width=500'></html>务必注意代码的缩进！浪费了偶半个多小时！5.The controller命令行运行：cd minispiderpaster controller ms将controllers文件夹下ms.py修改，代码如下：
500)this.width=500'>from minispider.lib.base import *500)this.width=500'>500)this.width=500'>class MsController(BaseController):500)this.width=500'> 500)this.width=500'> template_prefix = '/ms'500)this.width=500'> 500)this.width=500'> def index(self):500)this.width=500'> redirect_to(action='list')500)this.width=500'> 500)this.width=500'> def list(self):500)this.width=500'> c.titleinfo = list(model.titleinfo.select())500)this.width=500'> return render_response(self.template_prefix + '/list.myt')6. run命令行运行：paster serve --reload development.iniok，访问：http://127.0.0.1:5000/ms结果类似：
What
Where
When
Baidu
Baidu
2006-12-05 22:18:12
Google
Google
2006-12-05 22:18:42初试，功能之强大，操作之简便，初见端倪。 |
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