摘要：先從開始參照規(guī)定設(shè)定接口方法分別為，當(dāng)然也是規(guī)范了以上標(biāo)準(zhǔn)請(qǐng)求。查看存儲(chǔ)是否符合預(yù)期。包括測(cè)試對(duì)路由創(chuàng)建后是否為的實(shí)現(xiàn)。具體可查看致謝上述已完成了路由的基本設(shè)計(jì)，下一章將講解從啟動(dòng)到請(qǐng)求路由映射到服務(wù)腳本的過程。

上一篇的標(biāo)題改了一下，以一、二、三為章節(jié)對(duì)讀者來說是種困擾，現(xiàn)在的標(biāo)題是依照項(xiàng)目進(jìn)度來編寫的。上篇文章地址為 https://segmentfault.com/a/11...

這一系列文章并不準(zhǔn)備寫太多章節(jié)，大概規(guī)劃的只有4~5章左右，具體實(shí)現(xiàn)代碼還請(qǐng)移步Github
https://github.com/CrazyCodes...

本章詳細(xì)講解一下Route(路由的實(shí)現(xiàn))，Come on Up Image

上圖大概說明了實(shí)現(xiàn)路由要經(jīng)過兩個(gè)步驟

將所有路由信息存儲(chǔ)到超全局變量中

用戶請(qǐng)求時(shí)從全局變量中查找路由映射的服務(wù)腳本并實(shí)例化

OK,大概流程就是醬紫，下面開始“擼”

路由的代碼暫分為以下幾個(gè)文件（這并不是確定的，詳細(xì)可查看Github）

莫急,我們一個(gè)一個(gè)文件來看。先從RouteInterface開始

參照RESTful規(guī)定設(shè)定接口方法分別為 GET、POST、PATCH、PUT、DELETE、OPTIONS，當(dāng)然Laravel也是規(guī)范了以上標(biāo)準(zhǔn)請(qǐng)求。

GitHub : https://github.com/CrazyCodes...

interface RouteInterface
{
    /**
     * @param      $uri
     * @param null $action
     *
     * @return mixed
     */
    public function get($uri, $action = null);

    /**
     * @param      $uri
     * @param null $action
     *
     * @return mixed
     */
    public function post($uri, $action = null);

    /**
     * @param      $uri
     * @param null $action
     *
     * @return mixed
     */
    public function patch($uri, $action = null);

    /**
     * @param      $uri
     * @param null $action
     *
     * @return mixed
     */
    public function put($uri, $action = null);

    /**
     * @param      $uri
     * @param null $action
     *
     * @return mixed
     */
    public function delete($uri, $action = null);

    /**
     * @param      $uri
     * @param null $action
     *
     * @return mixed
     */
    public function options($uri, $action = null);
}

先寫一個(gè)栗子

public function get($uri, $action = null)
{
    return $this->addRoute("GET", $uri, $action);
}

用戶調(diào)用下方代碼會(huì)指向上述方法,方法既調(diào)用addRoute方法將路由信息存儲(chǔ)到$_SERVER中

Route::get("/","Controller")

以下為addRoute部分的代碼

public function addRoute($methods, $uri, $action)
{
    // 這里判斷請(qǐng)求方式是否合規(guī),既是否存在  GET、POST、PATCH、PUT、DELETE、OPTIONS其中之一
    if ($this->verify($methods) == false) {
        return false;
    }
    
    // 之后我們?nèi)ネ鵕outeCollection路由信息的處理類中
    return $this->routes->add($uri, $this->createRoute($methods, $action));
}

最終達(dá)到 add 方法，將路由信息存儲(chǔ)到$_SERVER中

public function add($uri, RouteModel $model)
{
    if (empty($_SERVER["routes"][$uri])) {
        $_SERVER["routes"][$uri] = $model;
    }
}

第二個(gè)參數(shù)RouteModel開始我們說過這是路由模型,將每個(gè)路由以結(jié)構(gòu)體的方式存儲(chǔ)到變量中,存儲(chǔ)后的結(jié)果

"routes" =>
  array(6) {
    "test/get" =>
    class ZeroRoutingRouteModel#13 (2) {
      public $method =>
      string(3) "GET"
      public $action =>
      string(19) "testController@test"
    }
    "test/post" =>
    class ZeroRoutingRouteModel#14 (2) {
      public $method =>
      string(4) "POST"
      public $action =>
      string(19) "testController@test"
    }
    "test/put" =>
    class ZeroRoutingRouteModel#15 (2) {
      public $method =>
      string(3) "PUT"
      public $action =>
      string(18) "testController@put"
    }
    "test/del" =>
    class ZeroRoutingRouteModel#16 (2) {
      public $method =>
      string(6) "DELETE"
      public $action =>
      string(18) "testController@del"
    }
    "test/patch" =>
    class ZeroRoutingRouteModel#17 (2) {
      public $method =>
      string(5) "PATCH"
      public $action =>
      string(20) "testController@patch"
    }
    "test/opt" =>
    class ZeroRoutingRouteModel#18 (2) {
      public $method =>
      string(7) "OPTIONS"
      public $action =>
      string(18) "testController@opt"
    }
  }

最后通過__callStatic將代碼重定向到核心類中

public static function __callStatic($name, $arguments)
{
    $router = new Router;
    
    return $router->{$name}($arguments[0], $arguments[1]);
}

上述套路部分是Laravel的設(shè)計(jì)思想，通過這款簡(jiǎn)單的框架可對(duì)Laravel核心設(shè)計(jì)有丁點(diǎn)的理解。

測(cè)試上次做的有點(diǎn)糙，從本章到系列結(jié)束，我們都以PHPunit來測(cè)試。

/**
 * @content tests all methods storage -> $_SERVER["routes"]
 */
public function testAllMethodsStorage()
{
    $this->routes->get($methodGet = "test/get", "testController@test");
    $this->assertArrayHasKey($methodGet, $_SERVER[$this->methodsDataKey]);
    
    $this->routes->post($methodPost = "test/post", "testController@test");
    $this->assertArrayHasKey($methodPost, $_SERVER[$this->methodsDataKey]);
    
    $this->routes->put($methodPut = "test/put", "testController@put");
    $this->assertArrayHasKey($methodPut, $_SERVER[$this->methodsDataKey]);
    
    $this->routes->delete($methodDel = "test/del", "testController@del");
    $this->assertArrayHasKey($methodDel, $_SERVER[$this->methodsDataKey]);
    
    $this->routes->patch($methodPatch = "test/patch", "testController@patch");
    $this->assertArrayHasKey($methodPatch, $_SERVER[$this->methodsDataKey]);
    
    $this->routes->options($methodOpt = "test/opt", "testController@opt");
    $this->assertArrayHasKey($methodOpt, $_SERVER[$this->methodsDataKey]);
}

上述貼出部分代碼，以過程化的方法去測(cè)試。查看存儲(chǔ)是否符合預(yù)期。

/**
 * @content RouteModel Success
 */
public function testCreateRoute()
{
    $response = $this->routes->createRoute("GET", "TestController@Get");
    
    $this->assertInstanceOf(RouteModel::class, $response);
}

包括測(cè)試對(duì)路由創(chuàng)建后是否為RouteModel的實(shí)現(xiàn)。具體可查看Github
https://github.com/CrazyCodes...

上述已完成了路由的基本設(shè)計(jì)，下一章將講解從啟動(dòng)到請(qǐng)求路由映射到服務(wù)腳本的過程。

希望本章可以幫到你，謝謝。