Mole详细说明文档

[TOC]
###最简单的示例
```python
@route('/')
def index():
	return "hello mole!"

if __name__  == "__main__":
	run(host='127.0.0.1', port=8080)

```
可以看出，mole中讲究的是简洁、直接，不做过多封装，尽量保持Python语言的原生特性

下面是mole中一些重要模块的介绍，由于mole已经在代码上做了比较清晰的模块化，所以建议在需要知道某个模块有哪些 API 的时候直接参看对应的类的源码，类源码和模块的对应关系参照 [附表](#jump)

###模块解析

####路由器route

#####基础路由
```python
@route('/')
@route('/index.html')
def index():
	return '<a href="/hello">Go to Hello World Page</a>'

```
以装饰器的方式声明url路由，支持多url批量声明

#####动态路由
```python
@route('/hello/:name')
def hello(name = 'World'):
    return 'Hello {}!'.format(name)
```
简洁的url模式匹配基本满足大部分声明场景

动态路由典型的使用例子——**静态资源路由**
```python
@route('/static/:filename')
def server_static(filename):
    return static_file(filename, root='/path/to/your/static/files')
```
以上即声明了一个web的静态资源url的映射，需要用到js,css等静态资源的站点均可以这样使用

#### HTTP请求(request对象)

##### 请求方法(Request Methods)
```python
@route('/test/', method=["GET","POST"])
@dbop
def test():
	return 'ok'
```
##### HTTP头
```python
@route('js_ajax')
def is_ajax():
    if request.header.get('X-Requested-With') == 'XMLHttpRequest':
        return 'This is an AJAX request'
    else:
        return 'This is a normal request'
```

##### URL参数
```python
@route('/forum')
def display_forum():
    forum_id = request.GET.get('id')
    page = request.GET.get('page','1')
return 'Forum ID: {} ( Page: {} )'.format(forum_id, page)
```

##### Form参数
```python
@route('/upload', method = 'POST')
def do_upload():
    name = request.forms.get('name')
    data = request.files.get('data')
    if name and data.file:
        raw = data.file.read()
        filename = data.filename
        return "Hello {}! You uploaded {} ( {} bytes ).".format(name, filename, len(raw))
	return "You missed a field"
```

##### WSGI(请求上下文信息)
```python
route('/my_ip')
def show_ip():
    ip = request.environ.get('REMOTE_ADDR')
	return 'Your IP is : {}'.format(ip)
```

#### HTTP响应(response对象)

#####设置响应头
```python
@route('/wiki/page')
def wiki(page):
    response.set_header('Content-Language', 'en')
    response.set_header('Set-Cookie','name=value')
```

##### Cookies
```python
@route('/visit')
def visit():
    if request.get_cookie("visited"):
        return "Welcome back! Nice to see you again"
    else:
        response.set_cookie("visited", "yes")
        return "Hello there! Nice to meet you"
```

#### 模板(Templates)
```python
from mole.template import template

@route('/hello/:name'):
def hello(name = 'World')
    return template('hello.tpl', name = name)
```

#### <span id="jump"/>附：源码和模块对应关系
> * route.py ——URL路由
> * request.py ——请求
> * response.py ——响应
> * template.py ——模板引擎
> * cookie.py ——cookie模块
> * sessions.py ——会话
> * server.py ——Web容器适配
> * mole.py  ——Mole app整体类(WSGI APP)

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