使用karloop开发一个媒体网站的demo

大家好，今天为大家介绍一款非常轻量级的的web开发框架，karloop框架。使用python开发

首先我们下载karloop源码进行安装。

源码地址

下载成功后解压，进入解压后的路径，进入终端，运行命令：sudo python setup.py install

如果是window系统，则打开cmd，运行：python setup.py install

我们按照如下路径创建一个项目：

├── base.py

├── config.py

├── handlers

│   ├── __init__.py

│   ├── handlers.py

│   └── pages.py

├── index.py

├── static

│   ├── js

│   │   ├── jquery-1.11.3.js

│   │   └── request.js

│   └── media

│       ├── 1.mp3

│       ├── 1.mp4

│       ├── 2.mp3

│       ├── 3.mp3

│       ├── 4.mp3

│       └── 5.mp3

└── template

├── main.html

└── media_list.html

首先我们来写一个base.py，所有的handler都可以继承，代码如下：

# coding=utf-8

__author__ = 'karl'

import json
from karloop.KarlBaseResponse import BaseResponse

class BaseHandler(BaseResponse):
    def response_as_json(self, body):
        self.set_header('application/json; charset="utf-8"')
        response_data = json.dumps(body)
        return self.response(response_data)

然后写config.py,代码如下：

# coding=utf-8

__author__ = 'karl'

import os

settings = {
    "static": os.path.join(os.path.dirname(__file__), "static/"),
    "template": os.path.join(os.path.dirname(__file__), "template/"),
    "cookie_code": "85701729"
}

再来个index.py

# coding=utf-8

__author__ = 'karl'

from config import settings
from karloop.KarlBaseApplication import BaseApplication
from handlers.pages import MainPage, MediaPage
from handlers.handlers import ListAllMediaHandler
from karloop.parse_command import parse_command_line

handlers = {
    "/main": MainPage,
    "/media": ListAllMediaHandler,
    "/media_page": MediaPage
}

class MediaWebApplication(BaseApplication):
    def __init__(self):
        super(MediaWebApplication, self).__init__(
            handlers=handlers,
            settings=settings
        )

if __name__ == '__main__':
    media_web_application = MediaWebApplication()
    parse_command_line(application=media_web_application, default=8888)
    media_web_application.run()

上handlers.py的代码：

# coding=utf-8

__author__ = 'karl'

from base import BaseHandler

class ListAllMediaHandler(BaseHandler):
    def get(self):
        extension = self.get_argument("extension", "")
        if not extension:
            return self.response_as_json(
                {
                    "error": "no valid parameter"
                }
            )
        extension = extension.lower()
        media_dict = {
            "mp3": ["1.mp3", "2.mp3", "3.mp3", "4.mp3", "5.mp3"],
            "mp4": ["1.mp4", "2.mp4", "3.mp4"]
        }
        if extension not in media_dict.keys():
            return self.response_as_json(
                {
                    "error": "no data"
                }
            )
        response_data = media_dict[extension]
        return self.response_as_json(response_data)

pages.py的代码

# coding=utf-8

__author__ = 'karl'

from karloop.KarlBaseResponse import BaseResponse

class MainPage(BaseResponse):
    def get(self):
        dictionary = {
            "title": "Main Page"
        }
        main_string = "Welcome!"
        test_list = ["This is a demo.", "Developed use karloop."]
        return self.render(
            "main.html",
            {
                "test_dic": dictionary,
                "test_string": main_string,
                "test_list": test_list
            }
        )

class MediaPage(BaseResponse):
    def get(self):
        return self.render("media_list.html")

整个项目的python 代码就这些，总体很简单，毕竟只是一个demo吗，项目的代码下载地址：点击

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