短篇小说：我无法使用composer安装Laravel容器进行方法注入(https://packagist.org/packages/illuminate/container)。只有在对象的构造函数中使用注入时才有效。例如：
class SomeClass {
function __construct(InjectedClassWorksHere $obj) {}
function someFunction(InjectedClassFailsHere $obj) {}
}
长话短说：我曾考虑将一个重大项目重新考虑使用Laravel，但由于业务压力，我无法在我想要的时间内进行投资。为了不让"婴儿和洗澡水一起倒掉"，我使用了单独的Laravel组件来提升旧分支中正在开发的代码的优雅性。在评估Laravel时，我最喜欢的新技术之一是依赖注入的概念。后来我很高兴地发现，我可以在Laravel项目之外使用它。我现在已经完成了这项工作，一切都很好，除了在线找到的容器的开发版本似乎不支持方法注入。
有没有其他人能够让容器工作，并在Laravel项目之外进行方法注入？
到目前为止我的方法。。。
composer.json
"illuminate/support": "5.0.*@dev",
"illuminate/container": "5.0.*@dev",
应用程序引导程序代码：
use Illuminate'Container'Container;
$container = new Container();
$container->bind('app', self::$container); //not sure if this is necessary
$dispatcher = $container->make('MyCustomDispatcher');
$dispatcher->call('some URL params to find controller');
有了以上内容，我可以注入控制器的构造函数，但不能注入它们的方法方法。我错过了什么？
完整来源。。。（C:''workspace''LMS>php cmd''test_container.php）
<?php
// This sets up my include path and calls the composer autoloader
require_once "bare_init.php";
use Illuminate'Container'Container;
use Illuminate'Support'ClassLoader;
use Illuminate'Support'Facades'Facade;
// Get a reference to the root of the includes directory
$basePath = dirname(dirname(__FILE__));
ClassLoader::register();
ClassLoader::addDirectories([
$basePath
]);
$container = new Container();
$container->bind('app', $container);
$container->bind('path.base', $basePath);
class One {
public $two;
public $say = 'hi';
function __construct(Two $two) {
$this->two = $two;
}
}
Class Two {
public $some = 'thing';
public function doStuff(One $one) {
return $one->say;
}
}
/* @var $one One */
$one = $container->make(One);
var_dump($one);
print $one->two->doStuff();
当我运行以上内容时，我得到。。。
C:'workspace'LMS>php cmd'test_container.php
object(One)#9 (2) {
["two"]=>
object(Two)#11 (1) {
["some"]=>
string(5) "thing"
}
["say"]=>
string(2) "hi"
}
PHP Catchable fatal error: Argument 1 passed to Two::doStuff() must be an instance of One, none
given, called in C:'workspace'LMS'cmd'test_container.php on line 41
and defined in C:'workspace'LMS'cmd'test_container.php on line 33
Catchable fatal error: Argument 1 passed to Two::doStuff() must be an instance of One, none
given, called in C:'workspace'LMS'cmd'test_container.php on line 41 and
defined in C:'workspace'LMS'cmd'test_container.php on line 33
或者，一个更基本的例子说明了注入在构造函数中工作，而不是在方法中。。。
class One {
function __construct(Two $two) {}
public function doStuff(Three $three) {}
}
class Two {}
class Three {}
$one = $container->make(One); // totally fine. Injection works
$one->doStuff(); // Throws Exception. (sad trombone)
只需将One的实例传递到对Two:的调用中
$one = $container->make('One');
var_dump($one);
print $one->two->doStuff($one);
返回。。。
object(One)#8 (2) {
["two"]=>
object(Two)#10 (1) {
["some"]=>
string(5) "thing"
}
["say"]=>
string(2) "hi"
}
hi
更新：经过进一步研究后更正了答案
如下所述，在Laravel 5.0中，方法注入仅在路由和控制器上可用。因此，你也可以将这些纳入你的项目中，并在这个过程中获得更多的Laravel-y。方法如下：
在composer.json中，需要添加illuminate/routing和illuminate/events:
{
"require-dev": {
"illuminate/contracts": "5.0.*@dev",
"illuminate/support": "5.0.*@dev",
"illuminate/container": "5.0.*@dev",
"illuminate/routing": "5.0.*@dev",
"illuminate/events": "5.0.*@dev"
},
"autoload": {
"psr-4": {
"App''": "app/"
}
},
"minimum-stability": "dev",
"prefer-stable": true
}
在routing.php中，设置Laravel的路由和控制器服务：
/**
* routing.php
*
* Sets up Laravel's routing and controllers
*
* adapted from http://www.gufran.me/post/laravel-components
* and http://www.gufran.me/post/laravel-illuminate-router-package-in-your-application
*/
$basePath = str_finish(dirname(__FILE__), '/app/');
$controllersDirectory = $basePath . 'Controllers';
// Register directories into the autoloader
Illuminate'Support'ClassLoader::register();
Illuminate'Support'ClassLoader::addDirectories($controllersDirectory);
// Instantiate the container
$app = new Illuminate'Container'Container();
$app['env'] = 'production';
$app->bind('app', $app); // optional
$app->bind('path.base', $basePath); // optional
// Register service providers
with (new Illuminate'Events'EventServiceProvider($app))->register();
with (new Illuminate'Routing'RoutingServiceProvider($app))->register();
require $basePath . 'routes.php';
$request = Illuminate'Http'Request::createFromGlobals();
$response = $app['router']->dispatch($request);
$response->send();
在Controllers/One.php中，将类创建为控制器，这样我们就可以使用L5的方法注入：
/**
* Controllers/One.php
*/
Class One extends Illuminate'Routing'Controller {
public $some = 'thingOne';
public $two;
public $three;
function __construct(Two $two) {
$this->two = $two;
echo('<pre>');
var_dump ($two);
echo ($two->doStuffWithTwo().'<br><br>');
}
public function doStuff(Three $three) {
var_dump ($three);
return ($three->doStuffWithThree());
}
}
在routes.php中，定义我们的测试路线：
$app['router']->get('/', 'One@dostuff');
最后，在index.php中，启动一切并定义我们的类来测试依赖注入：
/**
* index.php
*/
// turn on error reporting
ini_set('display_errors',1);
error_reporting(E_ALL);
require 'vendor/autoload.php';
require 'routing.php';
// the classes we wish to inject
Class Two {
public $some = 'thing Two';
public function doStuffWithTwo() {
return ('Doing stuff with Two');
}
}
Class Three {
public $some = 'thing Three';
public function doStuffWithThree() {
return ('Doing stuff with Three');
}
}
点击index.php，你应该得到这个：
object(Two)#40 (1) {
["some"]=>
string(9) "thing Two"
}
Doing stuff with Two
object(Three)#41 (1) {
["some"]=>
string(11) "thing Three"
}
Doing stuff with Three
一些笔记。。。
- 没有必要显式绑定这些类。拉拉维尔负责处理这件事
- 现在您有了Laravel的路由和控制器的额外奖励
- 这是因为现在我们不必使用抛出异常的空参数来调用
$one->doStuff();（因为doStuff需要一个实例）。相反，路由器调用doStuff并为我们解析IoC容器 - 贷记至http://www.gufran.me/post/laravel-illuminate-router-package-in-your-application它将带你了解所有这些，这似乎是Matt Stauffer上述项目的灵感来源。两者都很酷，值得一读