yii2页面缓存

public function behaviors()
	{
		return [
			[
				"class" => "yiifiltersPageCache",
				"only" => ["dashboard"],
				"duration" => 60000,
				"dependency" => [
					"class" => "yiicachingFileDependency",
					"fileName" => "robots.txt",
				],
			],
		];
	}