2.2.2 服務器端代碼

// 服務器端登錄邏輯

public function wechatLogin(Request $request) {

    $code = $request->input('code');

    $appid = 'your-wechat-appid';

    $secret = 'your-wechat-secret';



    // 通過 code 獲取 openid 和 session_key

    $url = "https://api.weixin.qq.com/sns/jscode2session?appid={$appid}&secret={$secret}&js_code={$code}&grant_type=authorization_code";

    $response = file_get_contents($url);

    $data = json_decode($response, true);



    if (isset($data['openid'])) {

        $openid = $data['openid'];

        $user = User::where('wechat_openid', $openid)->first();



        if (!$user) {

            // 創建新用戶

            $user = new User();

            $user->wechat_openid = $openid;

            $user->save();

        }



        // 生成 token

        $token = $this->generateToken($user);



        return response()->json(['token' => $token]);

    } else {

        return response()->json(['error' => '登錄失敗'], 400);

    }

}



private function generateToken($user) {

    // 生成 token 的邏輯，可以使用 JWT 或其他方式

    return md5($user->id . time());

}

3. 微信支付對接

3.1 微信支付流程

1. 用戶在小程序端選擇套餐并點擊支付按鈕。
2. 小程序端調用服務器端接口生成支付訂單。
3. 服務器端調用微信支付統一下單接口生成預支付訂單，并返回支付參數給小程序端。
4. 小程序端調用微信支付接口完成支付。
5. 服務器端接收微信支付回調，更新訂單狀態。

3.2 代碼示例

3.2.1 小程序端代碼

// 小程序端支付邏輯

wx.request({

  url: 'https://your-server-domain.com/api/wechat/pay',

  method: 'POST',

  data: {

    package_id: 1, // 套餐 ID

    user_id: wx.getStorageSync('user_id')

  },

  success: function (res) {

    const paymentData = res.data;

    wx.requestPayment({

      timeStamp: paymentData.timeStamp,

      nonceStr: paymentData.nonceStr,

      package: paymentData.package,

      signType: paymentData.signType,

      paySign: paymentData.paySign,

      success: function (res) {

        console.log('支付成功', res);

      },

      fail: function (err) {

        console.error('支付失敗', err);

      }

    });

  },

  fail: function (err) {

    console.error('生成支付訂單失敗', err);

  }

});

3.2.2 服務器端代碼

// 服務器端支付邏輯

public function wechatPay(Request $request) {

    $packageId = $request->input('package_id');

    $userId = $request->input('user_id');



    // 獲取套餐信息

    $package = Package::find($packageId);

    if (!$package) {

        return response()->json(['error' => '套餐不存在'], 400);

    }



    // 生成訂單

    $order = new Order();

    $order->user_id = $userId;

    $order->package_id = $packageId;

    $order->amount = $package->price;

    $order->status = 'pending';

    $order->save();



    // 調用微信支付統一下單接口

    $appid = 'your-wechat-appid';

    $mch_id = 'your-wechat-mch-id';

    $key = 'your-wechat-api-key';

    $nonceStr = md5(uniqid());

    $body = '套餐購買';

    $out_trade_no = $order->id;

    $total_fee = $order->amount * 100; // 單位為分

    $spbill_create_ip = $request->ip();

    $notify_url = 'https://your-server-domain.com/api/wechat/pay/notify';

    $trade_type = 'JSAPI';

    $openid = User::find($userId)->wechat_openid;



    $params = [

        'appid' => $appid,

        'mch_id' => $mch_id,

        'nonce_str' => $nonceStr,

        'body' => $body,

        'out_trade_no' => $out_trade_no,

        'total_fee' => $total_fee,

        'spbill_create_ip' => $spbill_create_ip,

        'notify_url' => $notify_url,

        'trade_type' => $trade_type,

        'openid' => $openid

    ];



    // 生成簽名

    ksort($params);

    $stringA = '';

    foreach ($params as $key => $value) {

        $stringA .= $key . '=' . $value . '&';

    }

    $stringSignTemp = $stringA . 'key=' . $key;

    $sign = strtoupper(md5($stringSignTemp));



    $params['sign'] = $sign;



    // 發送請求

    $xml = $this->arrayToXml($params);

    $response = $this->postXmlCurl($xml, 'https://api.mch.weixin.qq.com/pay/unifiedorder');

    $result = $this->xmlToArray($response);



    if ($result['return_code'] == 'SUCCESS' && $result['result_code'] == 'SUCCESS') {

        // 返回支付參數給小程序端

        $paymentData = [

            'timeStamp' => time(),

            'nonceStr' => $nonceStr,

            'package' => 'prepay_id=' . $result['prepay_id'],

            'signType' => 'MD5',

            'paySign' => $this->generatePaySign($appid, $result['prepay_id'], $nonceStr, $key)

        ];



        return response()->json($paymentData);

    } else {

        return response()->json(['error' => '生成支付訂單失敗'], 400);

    }

}



private function arrayToXml($arr) {

    $xml = "<xml>";

    foreach ($arr as $key => $val) {

        if (is_numeric($val)) {

            $xml .= "<" . $key . ">" . $val . "</" . $key . ">";

        } else {

            $xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";

        }

    }

    $xml .= "</xml>";

    return $xml;

}



private function xmlToArray($xml) {

    libxml_disable_entity_loader(true);

    $values = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);

    return $values;

}



private function postXmlCurl($xml, $url, $useCert = false, $second = 30) {

    $ch = curl_init();

    curl_setopt($ch, CURLOPT_URL, $url);

    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);

    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);

    curl_setopt($ch, CURLOPT_POST, 1);

    curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

    curl_setopt($ch, CURLOPT_TIMEOUT, $second);

    $data = curl_exec($ch);

    curl_close($ch);

    return $data;

}



private function generatePaySign($appid, $prepay_id, $nonceStr, $key) {

    $params = [

        'appId' => $appid,

        'timeStamp' => (string)time(),

        'nonceStr' => $nonceStr,

        'package' => 'prepay_id=' . $prepay_id,

        'signType' => 'MD5'

    ];



    ksort($params);

    $stringA = '';

    foreach ($params as $key => $value) {

        $stringA .= $key . '=' . $value . '&';

    }

    $stringSignTemp = $stringA . 'key=' . $key;

    $sign = strtoupper(md5($stringSignTemp));



    return $sign;

}

3.2.3 支付回調處理

// 支付回調處理

public function wechatPayNotify(Request $request) {

    $xml = file_get_contents('php://input');

    $data = $this->xmlToArray($xml);



    if ($data['return_code'] == 'SUCCESS' && $data['result_code'] == 'SUCCESS') {

        $orderId = $data['out_trade_no'];

        $order = Order::find($orderId);



        if ($order && $order->status == 'pending') {

            $order->status = 'paid';

            $order->save();



            // 更新用戶套餐信息

            $user = User::find($order->user_id);

            $user->package_id = $order->package_id;

            $user->save();

        }



        return response()->xml(['return_code' => 'SUCCESS', 'return_msg' => 'OK']);

    } else {

        return response()->xml(['return_code' => 'FAIL', 'return_msg' => '支付失敗']);

    }

}

4. 微信小程序通知對接

4.1 微信小程序通知流程

1. 用戶在 SSPanel-Uim 中觸發某些操作（如套餐到期、流量不足等）。
2. SSPanel-Uim 調用微信小程序通知接口，發送模板消息給用戶。

4.2 代碼示例

4.2.1 發送模板消息

// 發送模板消息

public function sendTemplateMessage($openid, $templateId, $data, $page = null) {

    $accessToken = $this->getAccessToken();

    $url = "https://api.weixin.qq.com/cgi-bin/message/wxopen/template/send?access_token={$accessToken}";



    $params = [

        'touser' => $openid,

        'template_id' => $templateId,

        'page' => $page,

        'data' => $data

    ];



    $response = $this->postJsonCurl($url, $params);

    return json_decode($response, true);

}



private function getAccessToken() {

    $appid = 'your-wechat-appid';

    $secret = 'your-wechat-secret';

    $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$appid}&secret={$secret}";

    $response = file_get_contents($url);

    $data = json_decode($response, true);

    return $data['access_token'];

}



private function postJsonCurl($url, $data) {

    $ch = curl_init();

    curl_setopt($ch, CURLOPT_URL, $url);

    curl_setopt($ch, CURLOPT_POST, 1);

    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

    curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);

    $result = curl_exec($ch);

    curl_close($ch);

    return $result;

}

4.2.2 示例：套餐到期通知

// 套餐到期通知

public function sendPackageExpireNotice($userId) {

    $user = User::find($userId);

    $openid = $user->wechat_openid;

    $templateId = 'your-template-id';

    $data = [

        'keyword1' => ['value' => '套餐即將到期'],

        'keyword2' => ['value' => date('Y-m-d H:i:s', strtotime('+7 days'))],

        'keyword3' => ['value' => '請及時續費']

    ];



    $this->sendTemplateMessage($openid, $templateId, $data);

}

5. 總結

通過本文的介紹，你已經了解了如何將 SSPanel-Uim 與微信小程序進行對接，包括用戶登錄、支付、通知等功能的實現。這些功能的實現不僅提升了用戶體驗，還為 SSPanel-Uim 的管理和運營帶來了極大的便利。希望本文的內容能夠幫助你在實際項目中順利實現 SSPanel-Uim 與微信小程序的對接。

如果你在對接過程中遇到任何問題，歡迎在評論區留言，我們將盡力為你解答。

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