有在yii2下用easyWeChat开发的么 [ 2.0 版本 ]

`<?php
namespace backend\controllers;

use Yii;
use \yii\web\Controller;
use yii\web\HttpException;
use backend\models\WechatUser;
use EasyWeChat\Server\BadRequestException;

class WebchatController extends Controller
{

public $enableCsrfValidation = false; //取消_csrf 数据验证

/**
 * actionIndex 微信验证
 * @return mixed
 */
public function actionIndex()
{

    try{
        $app    = Yii::$app->wechat->getApp();

        $server = $app->server;

        $server->setMessageHandler(function ($message) {
            // $message->FromUserName // 用户的 openid
            // $message->MsgType // 消息类型：event, text....
            switch ($message->MsgType) {
                case 'event':
                    //订阅公众号
                    if($message->Event == 'subscribe'){
                        return $this->subscribe($message);
                    }

                    //取消订阅事件
                    if($message->Event == 'unsubscribe'){
                        return $this->unsubscribe($message);
                    }

                    //已经订阅事件
                    if($message->Event == 'SCAN'){
                        //return $this->unsubscribe($message);
                    }

                    return '收到事件消息';
                    break;
                case 'text':
                    return '收到文字消息';
                    break;
                case 'image':
                    return '收到图片消息';
                    break;
                case 'voice':
                    return '收到语音消息';
                    break;
                case 'video':
                    return '收到视频消息';
                    break;
                case 'location':
                    return '收到坐标消息';
                    break;
                case 'link':
                    return '收到链接消息';
                    break;
                // ... 其它消息
                default:
                    return '收到其它消息';
                    break;
            }
        });

        $response = $server->serve();

        return $response->send();
    }catch (BadRequestException $e){

        if($e->getMessage() === 'Invalid request.'){
            throw  new HttpException(404);
        }

    }

}

/**
 * subscribe 微信订阅事件
 * @param $message
 */
private function subscribe($message)
{
    $userInfo = WechatUser::findUserByOpenId($message->FromUserName);

    if(!$userInfo){ //添加关注的用户到数据库中
        $app    = Yii::$app->wechat->getApp();

        $userService = $app->user;

        $userInfo = $userService->get($message->FromUserName);

        if($userInfo->subscribe){
            Yii::$app->db->createCommand()->insert(WechatUser::tableName(),[
                'openid'        => $userInfo->openid,
                'unionid'       => $userInfo->unionid,
                'nickname'      => $userInfo->nickname,
                'sex'           => $userInfo->sex,
                'headimgurl'    => $userInfo->headimgurl,
                'country'       => $userInfo->country,
                'province'      => $userInfo->province,
                'city'          => $userInfo->city,
                'language'      => $userInfo->language,
            ])->execute();
        }

    }else{
        $userInfo->sataus = 10;
        $userInfo->save();
    }

    return Yii::$app->params['WeChatMessage']['subscribe'];
}

/**
 * unsubscribe 微信取消订阅事件
 * @param $message
 */
private function unsubscribe($message)
{
    $userInfo = WechatUser::findUserByOpenId($message->FromUserName);
    if($userInfo){
        $userInfo->status = 0;

        $userInfo->save();
    }

    return '';
}

}`