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wx/V3/WxV3PaymentTait.php

@@ -53,8 +53,10 @@ trait WxV3PaymentTait
         $client = new Client('api.mch.weixin.qq.com', 443, TRUE);
         $client->withAddedHeader('Authorization', $sign)
                ->withContentType('application/json')->withAddedHeader('User-Agent', 'application/json')
-               ->withBody($json)->withAddedHeader("Accept", "*/*");
-
+               ->withAddedHeader("Accept", "*/*");
+        if (empty($json)) {
+            $client->withBody($json);
+        }
         $proxyHost = $this->getPayConfig()->getProxyHost();
         $proxyPort = $this->getPayConfig()->getProxyPort();
         if (!empty($proxyHost) && $proxyPort > 0) {
@@ -75,7 +77,7 @@ trait WxV3PaymentTait
 
         $sign = $this->signature('POST', '/v3/pay/transactions/out-trade-no/' . $orderNo . '?mchid=' . $config->pay->wx->mchId, "");
 
-        $client = $this->createClient($sign, null);
+        $client = $this->createClient($sign, "");
         $client->get('/v3/pay/transactions/out-trade-no/' . $orderNo, ['mchid' => $config->pay->wx->mchId]);
         $client->close();