feat：服务

@@ -22,7 +22,7 @@ class SimpleRequest
         $this->method = $data['method'];
         $this->header = $data['header'];
         $this->cookie = $data['cookie'];
-        $this->rawContent = $data['rawContent'];
+        $this->rawContent = isset($data['rawContent']) ? $data['rawContent'] : '';
         if ($this->method == 'POST') {
             if (count($this->post) == 0) {
                 $data = json_decode($this->rawContent, true);