fix回调时的bug

Author: 李仕鹏

CurlHttp.php

@@ -57,7 +57,7 @@ public function getAction()
  return $this->_action;
  }
 
- public function setAction($action) 
+ private function setAction($action) 
  {
  $this->_action = $action;
  }
@@ -131,12 +131,13 @@ public function getCurl()
 
  public function httpExec($action = "/", $params = array())
  {
- $ch = $this->getCurl();
  $this->setAction($action);
  if($this->beforeRequest instanceof Closure) {
  $params = call_user_func($this->beforeRequest, $params, $this);
  empty($params) && $params = []; 
  }
+ $ch = $this->getCurl();
+ $this->setAction($action);
  $url = $this->getUrl();
  if ($this->method == self::METHOD_POST) {
  curl_setopt($ch, CURLOPT_POST, 1);