diff --git a/framework/yii/base/Controller.php b/framework/yii/base/Controller.php
index 543605f..756f34a 100644
--- a/framework/yii/base/Controller.php
+++ b/framework/yii/base/Controller.php
@@ -151,43 +151,13 @@ class Controller extends Component
 	/**
 	 * Binds the parameters to the action.
 	 * This method is invoked by [[Action]] when it begins to run with the given parameters.
-	 * This method will check the parameter names that the action requires and return
-	 * the provided parameters according to the requirement. If there is any missing parameter,
-	 * an exception will be thrown.
 	 * @param Action $action the action to be bound with parameters
 	 * @param array $params the parameters to be bound to the action
 	 * @return array the valid parameters that the action can run with.
-	 * @throws InvalidRequestException if there are missing parameters.
 	 */
 	public function bindActionParams($action, $params)
 	{
-		if ($action instanceof InlineAction) {
-			$method = new \ReflectionMethod($this, $action->actionMethod);
-		} else {
-			$method = new \ReflectionMethod($action, 'run');
-		}
-
-		$args = array();
-		$missing = array();
-		foreach ($method->getParameters() as $param) {
-			$name = $param->getName();
-			if (array_key_exists($name, $params)) {
-				$args[] = $params[$name];
-				unset($params[$name]);
-			} elseif ($param->isDefaultValueAvailable()) {
-				$args[] = $param->getDefaultValue();
-			} else {
-				$missing[] = $name;
-			}
-		}
-
-		if (!empty($missing)) {
-			throw new InvalidRequestException(Yii::t('yii', 'Missing required parameters: {params}', array(
-				'{params}' => implode(', ', $missing),
-			)));
-		}
-
-		return $args;
+		return array();
 	}
 
 	/**
diff --git a/framework/yii/base/InvalidRequestException.php b/framework/yii/base/InvalidRequestException.php
deleted file mode 100644
index f4806ce..0000000
--- a/framework/yii/base/InvalidRequestException.php
+++ /dev/null
@@ -1,26 +0,0 @@
-<?php
-/**
- * @link http://www.yiiframework.com/
- * @copyright Copyright (c) 2008 Yii Software LLC
- * @license http://www.yiiframework.com/license/
- */
-
-namespace yii\base;
-
-/**
- * InvalidRequestException represents an exception caused by incorrect end user request.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @since 2.0
- */
-class InvalidRequestException extends UserException
-{
-	/**
-	 * @return string the user-friendly name of this exception
-	 */
-	public function getName()
-	{
-		return \Yii::t('yii', 'Invalid Request');
-	}
-}
-
diff --git a/framework/yii/web/Controller.php b/framework/yii/web/Controller.php
index 517f4b4..026c078 100644
--- a/framework/yii/web/Controller.php
+++ b/framework/yii/web/Controller.php
@@ -8,6 +8,8 @@
 namespace yii\web;
 
 use Yii;
+use yii\base\HttpException;
+use yii\base\InlineAction;
 
 /**
  * Controller is the base class of Web controllers.
@@ -19,6 +21,48 @@ use Yii;
 class Controller extends \yii\base\Controller
 {
 	/**
+	 * Binds the parameters to the action.
+	 * This method is invoked by [[Action]] when it begins to run with the given parameters.
+	 * This method will check the parameter names that the action requires and return
+	 * the provided parameters according to the requirement. If there is any missing parameter,
+	 * an exception will be thrown.
+	 * @param \yii\base\Action $action the action to be bound with parameters
+	 * @param array $params the parameters to be bound to the action
+	 * @return array the valid parameters that the action can run with.
+	 * @throws HttpException if there are missing parameters.
+	 */
+	public function bindActionParams($action, $params)
+	{
+		if ($action instanceof InlineAction) {
+			$method = new \ReflectionMethod($this, $action->actionMethod);
+		} else {
+			$method = new \ReflectionMethod($action, 'run');
+		}
+
+		$args = array();
+		$missing = array();
+		foreach ($method->getParameters() as $param) {
+			$name = $param->getName();
+			if (array_key_exists($name, $params)) {
+				$args[] = $params[$name];
+				unset($params[$name]);
+			} elseif ($param->isDefaultValueAvailable()) {
+				$args[] = $param->getDefaultValue();
+			} else {
+				$missing[] = $name;
+			}
+		}
+
+		if (!empty($missing)) {
+			throw new HttpException(400, Yii::t('yii', 'Missing required parameters: {params}', array(
+				'{params}' => implode(', ', $missing),
+			)));
+		}
+
+		return $args;
+	}
+
+	/**
 	 * Creates a URL using the given route and parameters.
 	 *
 	 * This method enhances [[UrlManager::createUrl()]] by supporting relative routes.