diff --git a/extend/catcher/generate/Generator.php b/extend/catcher/generate/Generator.php
index fc6abc1..80464db 100644
--- a/extend/catcher/generate/Generator.php
+++ b/extend/catcher/generate/Generator.php
@@ -10,6 +10,13 @@ use catcher\generate\factory\SQL;
 
 class Generator
 {
+    /**
+     * generate
+     *
+     * @time 2020年04月29日
+     * @param $params
+     * @return array
+     */
     public function done($params)
     {
         $params = \json_decode($params['data'], true);
@@ -44,11 +51,29 @@ class Generator
         return $message;
     }
 
-    public function preview($type, $params)
+    /**
+     * preview
+     *
+     * @time 2020年04月29日
+     * @param $params
+     * @return bool|string|string[]
+     */
+    public function preview($params)
     {
-        $class = ucfirst($type);
+        $params = \json_decode($params['data'], true);
 
-        return (new $class)->getContent($params);
+        $type = $params['type'];
+
+        [$controller, $model] = $this->parseParams($params);
+
+        switch ($type) {
+            case 'controller':
+                return (new Controller())->getContent($controller);
+            case 'model':
+                return (new Model())->getContent($model);
+            default:
+                break;
+        }
     }
 
 
@@ -61,12 +86,14 @@ class Generator
      */
     protected function parseParams($params)
     {
-        if (!$params['controller']['module'] ?? false) {
+        $module = $params['controller']['module'] ?? false;
+
+        if (!$module) {
             throw new FailedException('请设置模块');
         }
 
         $controller = [
-            'module' => $params['controller']['module'],
+            'module' => $module,
             'model'  => $params['controller']['model'] ?? '',
             'controller' => $params['controller']['controller'] ?? '',
             'restful' => $params['controller']['restful'],
@@ -74,8 +101,8 @@ class Generator
         ];
 
         $model = [
-            'table' => $params['controller']['table'],
-            'model' => $params['controller']['model'],
+            'table' => $params['controller']['table'] ?? '',
+            'model' => $params['controller']['model'] ?? '',
             'sql'   => $params['model']['data'],
             'extra' => $params['model']['extra'],
         ];
diff --git a/extend/catcher/generate/factory/Controller.php b/extend/catcher/generate/factory/Controller.php
index 9a86050..0a9c8df 100644
--- a/extend/catcher/generate/factory/Controller.php
+++ b/extend/catcher/generate/factory/Controller.php
@@ -35,7 +35,7 @@ class Controller extends Factory
      * @param $params
      * @return bool|string|string[]
      */
-    protected function getContent($params)
+    public function getContent($params)
     {
         if (!$params['controller']) {
             throw new FailedException('params has lost～');
@@ -47,7 +47,7 @@ class Controller extends Factory
         if (!$className) {
             throw new FailedException('未填写控制器名称');
         }
-
+        
         // parse model
         [$model, $modelNamespace] = $this->parseFilename($params['model']);
 
diff --git a/extend/catcher/generate/factory/Model.php b/extend/catcher/generate/factory/Model.php
index f5b2431..3bf4116 100644
--- a/extend/catcher/generate/factory/Model.php
+++ b/extend/catcher/generate/factory/Model.php
@@ -39,7 +39,7 @@ class Model extends Factory
         [$modelName, $namespace] = $this->parseFilename($params['model']);
 
         if (!$modelName) {
-            throw new FailedException('create Model Failed');
+            throw new FailedException('model name not set');
         }
 
         $content = $template->useTrait($extra['soft_delete']) .
diff --git a/extend/catcher/generate/template/Model.php b/extend/catcher/generate/template/Model.php
index 8a5ea4e..eeab635 100644
--- a/extend/catcher/generate/template/Model.php
+++ b/extend/catcher/generate/template/Model.php
@@ -55,12 +55,13 @@ TMP;
      */
     public function name($name)
     {
-        return <<<TMP
+        if ($name) {
+            return <<<TMP
 protected \$name = '{$name}';
 
 
 TMP;
-
+        }
     }
 
     /**