Lumen 初体验

摘要：介绍为速度而生的框架。是官方给出的例子，直接拷贝命名为。一般来说，我们应该避免使用末尾带斜杠的。因为它如果找不到文件，就会自动在末尾加个斜杠，尝试寻找目录下的文件等等，具体是在中配置。方案修改修改的配置文件，将指向重启。

Lumen：“为速度而生的 Laravel 框架”。

Lumen 是 Laravel 的作者（Taylor Otwell）的又一力作。简单、快速、优雅的它的特点，适合用于构建微服务架构和 API 应用。
官网：http://lumen.laravel.com
介绍：https://phphub.org/topics/701
中文文档：http://lumen.laravel-china.org/docs

使用 composer 安装：

bashcomposer create-project laravel/lumen --prefer-dist

bashcd lumen
cp .env.example .env

bashAPP_DEBUG=true

bashSorry, the page you are looking for could not be found.

NotFoundHttpException in Application.php line 1121:

in Application.php line 1121
at Application->handleDispatcherResponse(array("0")) in Application.php line 1091
at Application->dispatch(null) in Application.php line 1026
at Application->run() in index.php line 28

php$app->get("/", function() use ($app) {
    return $app->welcome();
});

php$app->get("/test", function() use ($app) {
    return $app->welcome();
});

bashRewriteRule ^(.*)/$ /$1 [L,R=301]

php    /**
     * Dispatch the incoming request.
     *
     * @param  SymfonyRequest|null  $request
     * @return Response
     */
    public function dispatch($request = null)
    {
        if ($request) {
            $this->instance("IlluminateHttpRequest", $request);
            $this->ranServiceBinders["registerRequestBindings"] = true;

            $method = $request->getMethod();
            $pathInfo = $request->getPathInfo();
        } else {
            $method = $this->getMethod();
            $pathInfo = $this->getPathInfo();
        }        

        try {
            if (isset($this->routes[$method.$pathInfo])) {
                return $this->handleFoundRoute([true, $this->routes[$method.$pathInfo]["action"], []]);
            }

            return $this->handleDispatcherResponse(
                $this->createDispatcher()->dispatch($method, $pathInfo)
            );
        } catch (Exception $e) {
            return $this->sendExceptionToHandler($e);
        }
    }

phpvar_dump($method);  // string(3) "GET"
var_dump($pathInfo);  // string(14) "/lumen/public/"

phpvar_dump(array_keys($this->routes));  // array(2) { [0]=> string(4) "GET/" [1]=> string(8) "GET/test" }

bashDocumentRoot "/sites/lumen/public"

bashInclude etc/extra/httpd-vhosts.conf

bash
    DocumentRoot "/sites"
    ServerName 127.0.0.1


    DocumentRoot "/sites/lumen/public"
    ServerName lumen.app

bash127.0.0.1 lumen.app

php
define("ROUTE_BASE", "lumen/public");

$app->get(ROUTE_BASE . "/index", function() use ($app) {
    return $app->welcome();
});
$app->get(ROUTE_BASE . "/test", function() use ($app) {
    return $app->welcome();
});

php    /**
     * Add a route to the collection.
     *
     * @param  string  $method
     * @param  string  $uri
     * @param  mixed  $action
     */
    protected function addRoute($method, $uri, $action)
    {
        $action = $this->parseAction($action);

        $uri = $uri === "/" ? $uri : "/".trim($uri, "/");

        if (isset($action["as"])) {
            $this->namedRoutes[$action["as"]] = $uri;
        }

        if (isset($this->groupAttributes)) {
            if (isset($this->groupAttributes["prefix"])) {
                $uri = rtrim("/".trim($this->groupAttributes["prefix"], "/").$uri, "/");
            }

            $action = $this->mergeGroupAttributes($action);
        }

        $this->routes[$method.$uri] = ["method" => $method, "uri" => $uri, "action" => $action];
    }