:art 增加easywechat 自动获取token

README.md

@@ -80,6 +80,7 @@ class WechatNotification extends Notification
 - 直接传递 accesstoken 值到 `WechatMessage::create($accesstoken)` 方法中，如上例所示；
 - 传递一个 `Yansongda\LaravelNotificatinoWechat\Contracts\AccessTokenInterface` 类到 `WechatMessage::create($CredentialClass)` 方法；
 - 直接在 config 文件夹中的 services.php 中添加 `'wechat' => ['appid' => 'xxx', 'appsecret' => 'xxx']`，系统将自动获取 accesstoken 并缓存，缓存的 key 为 `wechatAccessToken您的APPID` 您可以直接通过 laravel 的 Cache Facade 获取缓存的 accesstoken，当然，最保险的方案是通过 `(new Yansongda\LaravelNotificationWechat\Credential($appid, $appsecret))->getAccessToken()` 去获取 accesstoken。
+- 若使用EasyWechat(laravel包)且正常通信后，`WechatMessage::create()` 参数留空即可
 
 具体可查看源码。
 

src/EasyWechatCredential.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace Yansongda\LaravelNotificationWechat;
+
+use Yansongda\LaravelNotificationWechat\Contracts\AccessTokenInterface;
+
+class EasyWechatCredential implements AccessTokenInterface
+{
+    /**
+     * Wechat access token.
+     *
+     * @var string
+     */
+    public $accessToken;
+
+    /**
+     * Bootstap.
+     *
+     * @author osi <yaoiluo@gmail.cn>
+     */
+    public function __construct()
+    {
+    }
+
+    /**
+     * Set wechat accesstoken.
+     *
+     * @author yansongda <me@yansongda.cn>
+     *
+     * @param string $token
+     */
+    public function setAccessToken($token)
+    {
+        $this->accessToken = $token;
+
+        return $this;
+    }
+
+    /**
+     * Get wechat accesstoken.
+     *
+     * @author osi <yaoiluo@gmail.cn>
+     *
+     * @return string
+     */
+    public function getAccessToken()
+    {
+        if (!isset($this->accessToken)) {
+            $app = app('wechat.official_account');
+
+            return $app->access_token->getToken()['access_token'];
+        }
+
+        return $this->accessToken;
+    }
+}

src/WechatServiceProvider.php

@@ -11,13 +11,22 @@ class WechatServiceProvider extends ServiceProvider
      */
     public function boot()
     {
-        $this->app->when(WechatChannel::class)
-            ->needs(Wechat::class)
-            ->give(function () {
-                return new Wechat(
-                    new Credential(config('services.wechat.appid'), config('services.wechat.appsecret'))
-                );
-            });
+        if (class_exists('EasyWeChat\Factory')) {
+            // 如果用了easywechat
+            $this->app->when(WechatChannel::class)
+                ->needs(Wechat::class)
+                ->give(function () {
+                    return new Wechat(new EasyWechatCredential());
+                });
+        } else {
+            $this->app->when(WechatChannel::class)
+                ->needs(Wechat::class)
+                ->give(function () {
+                    return new Wechat(
+                        new Credential(config('services.wechat.appid'), config('services.wechat.appsecret'))
+                    );
+                });
+        }
     }
 
     /**