关于Web程序框架的思考概览如下。
base
/------------------\
/ args[] \
/ +-----+ \
/ | | \
http://www.site.com/subsite/c-021/app/subapp/arg1/arg2?q=qstring
\___________/\______/\____/\_________/\________/ \_______/
server root |realm app argv[] | qstring
|_________________________|
path
============================ $env[] ==============================
+----------+ +----------+ +-------------+
| Client | | Server | | HttpApp |
|----------| |----------| |-------------|
| | HttpRequest | | | |
| cookie +--------------> Session | | |
| .css | | Auth +------> dispatch() |
| .js <--------------+ | | |
| | HttpResponse | | | |
| | | | | |
+----------+ +----------+ +-----+-------+
|
$env[] |
+---------------------+
|
|
+---------------+ +-----v-------+ +--------------+
| HttpPageModel | | HttpPage | | HttpPageView |
| --------------| |-------------| |--------------|
| | | $env[] | | |
| | | $argc | | |
| +------> $argv[] +------> |
| | | $args[] | | |
| | | | | |
| | | | | |
+------^--------+ +-----^-------+ +-------^------+
| | |
| | |
| | |
+------+---------------------+----------------------+------+
| Helper & Model |
|----------------------------------------------------------|
| DbUtil Paginator |
| |
+----------------------------------------------------------+
所有的一切从一个客户端(Client)发出的URL请求开始。这个URL在服务器端(Server)被解析并映射到一个特定的程序(HttpPage)。
这个HttpPage调用各种资源，生成响应返回给客户端。