diff --git a/app/BaseController.php b/app/BaseController.php
index 951f66f..7980d44 100644
--- a/app/BaseController.php
+++ b/app/BaseController.php
@@ -74,6 +74,8 @@ abstract class BaseController
         if (is_array($validate)) {
             $v = new Validate();
             $v->rule($validate);
+        } else if ($validate instanceof Validate) {
+            $v = $validate;
         } else {
             if (strpos($validate, '.')) {
                 // 支持场景
diff --git a/app/admin/controller/system/Admin.php b/app/admin/controller/system/Admin.php
index cbdd35b..4635f53 100644
--- a/app/admin/controller/system/Admin.php
+++ b/app/admin/controller/system/Admin.php
@@ -11,6 +11,8 @@ use app\common\controller\AdminController;
 use app\admin\service\annotation\ControllerAnnotation;
 use app\admin\service\annotation\NodeAnotation;
 use think\App;
+use think\facade\Validate;
+use think\validate\ValidateRule;
 
 /**
  * Class Admin
@@ -76,12 +78,23 @@ class Admin extends AdminController
             $post = $this->request->post();
             $authIds = $this->request->post('auth_ids', []);
             $post['auth_ids'] = implode(',', array_keys($authIds));
-            $rule = [];
+            $rule = Validate::rule('username|用户登录名', ValidateRule::isRequire());
+            $post['password'] = password(sysconfig('site', 'site_default_password', '123456'));
             $this->validate($post, $rule);
+
+
+
             try {
+
+                $model_admin = SystemAdmin::where('username', $post['username'])->find();
+
+                if (!empty($model_admin)) {
+                    throw new \Exception('同名用户已存在');
+                }
+
                 $save = $this->model->save($post);
             } catch (\Exception $e) {
-                $this->error('保存失败');
+                $this->error('保存失败:' . $e->getMessage());
             }
             $save ? $this->success('保存成功') : $this->error('保存失败');
         }
diff --git a/app/admin/traits/Curd.php b/app/admin/traits/Curd.php
index 44ebcf1..304461a 100644
--- a/app/admin/traits/Curd.php
+++ b/app/admin/traits/Curd.php
@@ -79,7 +79,7 @@ trait Curd
             try {
                 $save = $row->save($post);
             } catch (\Exception $e) {
-                $this->error('保存失败');
+                $this->error('保存失败:' . $e->getMessage());
             }
             $save ? $this->success('保存成功') : $this->error('保存失败');
         }
@@ -98,7 +98,7 @@ trait Curd
         try {
             $save = $row->delete();
         } catch (\Exception $e) {
-            $this->error('删除失败');
+            $this->error('删除失败:' . $e->getMessage());
         }
         $save ? $this->success('删除成功') : $this->error('删除失败');
     }
@@ -156,7 +156,7 @@ trait Curd
                 $post['field'] => $post['value'],
             ]);
         } catch (\Exception $e) {
-            $this->error($e->getMessage());
+            $this->error('修改失败:' . $e->getMessage());
         }
         $this->success('保存成功');
     }
diff --git a/app/admin/view/system/config/site.html b/app/admin/view/system/config/site.html
index 18e61c3..512f0c6 100644
--- a/app/admin/view/system/config/site.html
+++ b/app/admin/view/system/config/site.html
@@ -49,6 +49,13 @@
             <tip>填写站点域名。以http://或https://开头,内置的定时任务用到了这个配置项，修改之后需要重启定时任务</tip>
         </div>
     </div>
+    <div class="layui-form-item">
+        <label class="layui-form-label">默认密码</label>
+        <div class="layui-input-block">
+            <input type="text" name="site_default_password" class="layui-input" placeholder="请输入默认密码" value="{:sysconfig('site','site_default_password')}">
+            <tip>添加账号时自动填充的密码，默认为：123456 。建议填写为您系统特有的默认密码规则，比如：ul-aa@@123</tip>
+        </div>
+    </div>
     <div class="layui-form-item">
         <label class="layui-form-label">js脚本</label>
         <div class="layui-input-block">
diff --git a/database/migrations/20220419022952_system_admin.php b/database/migrations/20220419022952_system_admin.php
index ac28b93..2143d14 100644
--- a/database/migrations/20220419022952_system_admin.php
+++ b/database/migrations/20220419022952_system_admin.php
@@ -32,13 +32,13 @@ class SystemAdmin extends Migrator
             ->setComment('系统用户表')
             ->addColumn(Column::char('auth_ids')->setDefault('')->setComment('角色权限ID'))
             ->addColumn(Column::char('head_img')->setDefault('')->setComment('头像'))
-            ->addColumn(Column::char('username', 50)->setDefault('')->setUnique()->setComment('用户登录名'))
+            ->addColumn(Column::char('username', 50)->setDefault('')->setComment('用户登录名'))
             ->addColumn(Column::char('password', 40)->setDefault('')->setComment('用户密码'))
             ->addColumn(Column::char('phone',16)->setDefault('')->setComment('联系手机号'))
             ->addColumn(Column::char('remark')->setDefault('')->setComment('备注说明'))
             ->addColumn(Column::bigInteger('login_num')->setUnsigned()->setDefault(0)->setComment('登录次数'))
             ->addColumn(Column::integer('sort')->setDefault(0)->setComment('排序'))
-            ->addColumn(Column::tinyInteger('status')->setLimit(1)->setUnsigned()->setDefault(0)->setComment('状态 {radio} (0:禁用,1:启用,)'))
+            ->addColumn(Column::tinyInteger('status')->setLimit(1)->setUnsigned()->setDefault(1)->setComment('状态 {radio} (0:禁用,1:启用,)'))
             ->addColumn(Column::integer('create_time')->setLimit(11)->setUnsigned()->setDefault(0)->setComment('创建时间'))
             ->addColumn(Column::integer('update_time')->setLimit(11)->setUnsigned()->setDefault(0))
             ->addColumn(Column::integer('delete_time')->setLimit(11)->setUnsigned()->setDefault(0))