diff --git a/EdgeManager.php b/EdgeManager.php
index ccd34a8..d7b174a 100644
--- a/EdgeManager.php
+++ b/EdgeManager.php
@@ -53,92 +53,89 @@ $worker -> onMessage = function(TcpConnection $connection, Request $request) {
         }
     }
 
-    if (isset($post) and is_array($post)) {
-        if (count($post) !== 0) {
-            // Axios：发送的POST是array
-            if (is_array($post) and isset($post['action'])) {
-                if (str_ends_with($post['action'], 'node')) {
-                    // 用这种方式自动匹配调用和action相对应的方法
-                    $action = $post['action'];
-                    unset($post['action']);
-                    $enode_configure = new ENodeConfigure($dbconn, post: $post);
-                    $res = $enode_configure -> $action();
-                    if ($res === true)
-                        $connection -> send(json_encode(array(
-                            'code'  => 0,
-                            'msg'   => 'Success'
-                        )));
-                    else if ($res === "REPLICATED")
-                        $connection -> send(json_encode(array(
-                            'code'  => 1,
-                            'msg'   => '节点编码不可重复！'
-                        )));
-                    else if ($res === false) {
-                        $connection -> send(json_encode(array(
-                            'code'  => 1,
-                            'msg'   => '服务器内部逻辑错误，请联系开发者！'
-                        )));
-                    }
+    if (isset($post) and !(is_array($post) and count($post) === 0)) {
+        // Axios：发送的POST是array
+        if (isset($post -> action)) {
+            if (str_ends_with($post -> action, 'node')) {
+                // 用这种方式自动匹配调用和action相对应的方法
+                // 因为pg_insert()不需要action字段
+                $action = $post -> action;
+                unset($post -> action);
+                $enode_configure = new ENodeConfigure($dbconn, post: $post);
+                $res = $enode_configure -> $action();
+                if ($res === true)
+                    $connection -> send(json_encode(array(
+                        'code'  => 0,
+                        'msg'   => 'Success'
+                    )));
+                else if ($res === "REPLICATED")
+                    $connection -> send(json_encode(array(
+                        'code'  => 1,
+                        'msg'   => '节点编码不可重复！'
+                    )));
+                else if ($res === false) {
+                    $connection -> send(json_encode(array(
+                        'code'  => 1,
+                        'msg'   => '服务器内部逻辑错误，请联系开发者！'
+                    )));
+                }
+            } else if ($post -> action === 'set_node_data') {
+                $data_capture = new EDataCapture($dbconn, post: $post);
+                if ($data_capture -> check_res === 'WRONG_WORKING_SUBCLASS') {
+                    $response = new Response(200, [
+                        'Content-Type' => 'application/json;charset=utf-8',
+                    ], json_encode(array(
+                        'action' => 'result_set_node_data',
+                        'errcode' => 4002,
+                        'errmsg' => '未登记过的工序单元！'
+                    )));
+                    $connection -> send($response);
+                } else if ($data_capture -> check_res === 'MISMATCH_TYPE') {
+                    $response = new Response(200, [
+                        'Content-Type' => 'application/json;charset=utf-8',
+                    ], json_encode(array(
+                        'action' => 'result_set_node_data',
+                        'errcode' => 4002,
+                        'errmsg' => '节点编码和数值类型不匹配！'
+                    )));
+                    $connection -> send($response);
+                }
+                $res = $data_capture -> set_node_data();
+                if ($res === true) {
+                    $connection -> send(json_encode(array(
+                        'action' => 'result_set_node_data',
+                        'errcode' => 0,
+                        'errmsg' => ''
+                    )));
+                } else {
+                    $connection -> send(json_encode(array(
+                        'action' => 'result_set_node_data',
+                        'errcode' => 4002,
+                        'errmsg' => 'ROLLBACKed: Bad data received (structure and/or values)'
+                    )));
                 }
-            }
-        }
-    } else if (isset($post -> action)) {
-        if ($post -> action === 'set_node_data') {
-            $data_capture = new EDataCapture($dbconn, post: $post);
-            if ($data_capture -> check_res === 'WRONG_WORKING_SUBCLASS') {
-                $response = new Response(200, [
-                    'Content-Type' => 'application/json;charset=utf-8',
-                ], json_encode(array(
-                    'action' => 'result_set_node_data',
-                    'errcode' => 4002,
-                    'errmsg' => '未登记过的工序单元！'
-                )));
-                $connection -> send($response);
-            } else if ($data_capture -> check_res === 'MISMATCH_TYPE') {
-                $response = new Response(200, [
-                    'Content-Type' => 'application/json;charset=utf-8',
-                ], json_encode(array(
-                    'action' => 'result_set_node_data',
-                    'errcode' => 4002,
-                    'errmsg' => '节点编码和数值类型不匹配！'
-                )));
-                $connection -> send($response);
-            }
-            $res = $data_capture -> set_node_data();
-            if ($res === true) {
-                $connection -> send(json_encode(array(
-                    'action' => 'result_set_node_data',
-                    'errcode' => 0,
-                    'errmsg' => ''
-                )));
             } else {
-                $connection -> send(json_encode(array(
-                    'action' => 'result_set_node_data',
+                // 有action，但是不知道是什么鬼动作
+                $response = new Response(200, [
+                    'Content-Type' => 'application/json;charset=utf-8',
+                ], json_encode(array(
+                    'action' => $post -> action,
                     'errcode' => 4002,
-                    'errmsg' => 'ROLLBACKed: Bad data received (structure and/or values)'
+                    'errmsg' => '乜Q action吖？同朕check check佢'
                 )));
+                $connection -> send($response);
             }
         } else {
-            // 有action，但是不知道是什么鬼动作
+            // action都无
             $response = new Response(200, [
                 'Content-Type' => 'application/json;charset=utf-8',
             ], json_encode(array(
-                'action' => $post -> action,
-                'errcode' => 4002,
-                'errmsg' => '同朕check check佢'
+                'action' => '缺少action字段',
+                'errcode' => 4001,
+                'errmsg' => '你请求紧乜撚动作吖？'
             )));
             $connection -> send($response);
         }
-    } else {
-        // action都无
-        $response = new Response(200, [
-            'Content-Type' => 'application/json;charset=utf-8',
-        ], json_encode(array(
-            'action' => '缺少action字段',
-            'errcode' => 4001,
-            'errmsg' => '你请求紧乜撚动作吖？'
-        )));
-        $connection -> send($response);
     }
 
     $get = $request -> get();
@@ -206,7 +203,7 @@ $worker -> onMessage = function(TcpConnection $connection, Request $request) {
                 'msg'   => '你请求紧乜撚嘢啊？'
             )));
         }
-    }    
+    }
 };
 
 Worker::runAll();
diff --git a/app/EDataCapture/ENodeConfigure.php b/app/EDataCapture/ENodeConfigure.php
index a8108e7..5af7b5f 100644
--- a/app/EDataCapture/ENodeConfigure.php
+++ b/app/EDataCapture/ENodeConfigure.php
@@ -12,13 +12,13 @@ class ENodeConfigure {
         $exists = pg_query(sprintf(
             "SELECT EXISTS(
                 SELECT 1 FROM hf_mes_scada_data_capture_node_configure WHERE code='%s'
-            )", $this -> post['code']
+            )", $this -> post -> code
         ));
         if (pg_fetch_assoc($exists)['exists'] == 't') {
             return "REPLICATED";
         }
 
-        $table_name = "hf_mes_scada_data_capture_node_data_" . $this -> post['working_subclass'];
+        $table_name = "hf_mes_scada_data_capture_node_data_" . $this -> post -> working_subclass;
 
         pg_query($this -> dbconn, "BEGIN");
         $res[] = pg_query($this -> dbconn, sprintf(
@@ -37,7 +37,7 @@ class ENodeConfigure {
         $res[] = pg_insert(
             $this -> dbconn,
             'hf_mes_scada_data_capture_node_configure',
-            $this -> post
+            (array) $this -> post
         );
         // 检查一下，如果超表已经有了就不要尝试重复创建了
         $table_exists = pg_query(sprintf(
@@ -69,17 +69,17 @@ class ENodeConfigure {
         $res[] = pg_delete(
             $this -> dbconn,
             'hf_mes_scada_data_capture_node_configure',
-            $this -> post,
+            (array) $this -> post,
         );
         $exists = pg_query(sprintf(
             "SELECT EXISTS(
                 SELECT 1 FROM hf_mes_scada_data_capture_node_configure WHERE code='%s'
-            )", $this -> post['working_subclass']
+            )", $this -> post -> working_subclass
         ));
         if (pg_fetch_assoc($exists)['exists'] == 'f') {
             $res[] = pg_query(sprintf(
                 "DROP TABLE hf_mes_scada_data_capture_node_data_%s",
-                $this -> post['working_subclass']
+                $this -> post -> working_subclass
             ));
         }
         
@@ -96,8 +96,8 @@ class ENodeConfigure {
         return pg_update(
             $this -> dbconn,
             'hf_mes_scada_data_capture_node_configure',
-            $this -> post,
-            ['code' => $this -> post['code']]
+            (array) $this -> post,
+            ['code' => $this -> post -> code]
         );
     }