diff --git a/README.md b/README.md
index 19ec754176d22120ee1d3614dcf35943cdc90da8..82323fdfe3dd963dcd9d989677a54f249665e84f 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ composer create-project apiadmin/apiadmin4
 > 第二步：检测环境以及配置数据库
 
 ```
-php think apiadmin:install --db mysql://root:123456@127.0.0.1:3306/apiadmin#utf8
+php think apiadmin:install --db mysql://root:123456@127.0.0.1:3306/apiadmin#utf8mb4
 ```
 
 > 第三步：数据库迁移
diff --git a/application/admin/controller/Index.php b/application/admin/controller/Index.php
index f96529224614f97da852b49a98efaafc42cb2819..95598b3f6790b596646e7b5e28184f2f04ef01c3 100644
--- a/application/admin/controller/Index.php
+++ b/application/admin/controller/Index.php
@@ -2,13 +2,9 @@
 
 namespace app\admin\controller;
 
-
 use app\util\ReturnCode;
 
 class Index extends Base {
-    public function index() {
-        return json(['welcome']);
-    }
 
     public function upload() {
         $path = '/upload/' . date('Ymd', time()) . '/';
@@ -18,19 +14,19 @@ class Index extends Base {
         //过滤错误
         if ($error) {
             switch ($error) {
-                case 1 :
+                case 1:
                     $error_message = '您上传的文件超过了PHP.INI配置文件中UPLOAD_MAX-FILESIZE的大小';
                     break;
-                case 2 :
+                case 2:
                     $error_message = '您上传的文件超过了PHP.INI配置文件中的post_max_size的大小';
                     break;
-                case 3 :
+                case 3:
                     $error_message = '文件只被部分上传';
                     break;
-                case 4 :
+                case 4:
                     $error_message = '文件不能为空';
                     break;
-                default :
+                default:
                     $error_message = '未知错误';
             }
             die($error_message);
diff --git a/database/migrations/20190425073802_admin_app.php b/database/migrations/20190425073802_admin_app.php
index 91d8253d06bd376b7bbe2b04c50df48fbf50af4b..3d56af753bf4f47f34358cb8603cd0d9f7f15344 100644
--- a/database/migrations/20190425073802_admin_app.php
+++ b/database/migrations/20190425073802_admin_app.php
@@ -3,6 +3,7 @@
 use think\migration\Migrator;
 
 class AdminApp extends Migrator {
+
     /**
      * Change Method.
      *
@@ -43,7 +44,7 @@ class AdminApp extends Migrator {
      */
     public function change() {
         $table = $this->table('admin_app', [
-            'comment'     => 'appId和appSecret表'
+            'comment' => 'appId和appSecret表',
         ])->setCollation('utf8mb4_general_ci');
         $table->addColumn('app_id', 'string', [
             'limit'   => 50,
diff --git a/database/migrations/20190425094427_admin_app_group.php b/database/migrations/20190425094427_admin_app_group.php
index c5e1dcc1f1594206f21abf02ab533ef34602eff0..84c618bd5d882b8cabeb6717edb6f9442c5565c4 100644
--- a/database/migrations/20190425094427_admin_app_group.php
+++ b/database/migrations/20190425094427_admin_app_group.php
@@ -3,6 +3,7 @@
 use think\migration\Migrator;
 
 class AdminAppGroup extends Migrator {
+
     /**
      * Change Method.
      *
@@ -35,7 +36,6 @@ class AdminAppGroup extends Migrator {
      *   PRIMARY KEY (`id`)
      * ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='应用组，目前只做管理使用，没有实际权限控制';
      */
-
     public function change() {
         $table = $this->table('admin_app_group', [
             'comment' => '应用组，目前只做管理使用，没有实际权限控制'
diff --git a/database/migrations/20190508070533_admin_auth_group.php b/database/migrations/20190508070533_admin_auth_group.php
index dde6e81fcdf39798c2767ba234b2fa6bacab5aae..c0d9d4a5f867cf255a219a32f6aa6a83d61cf9da 100644
--- a/database/migrations/20190508070533_admin_auth_group.php
+++ b/database/migrations/20190508070533_admin_auth_group.php
@@ -3,6 +3,7 @@
 use think\migration\Migrator;
 
 class AdminAuthGroup extends Migrator {
+
     /**
      * Change Method.
      *
@@ -34,7 +35,6 @@ class AdminAuthGroup extends Migrator {
      *   PRIMARY KEY (`id`)
      * ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='权限组';
      */
-
     public function change() {
         $table = $this->table('admin_auth_group', [
             'comment' => '权限组'
diff --git a/database/migrations/20190508100337_admin_auth_group_access.php b/database/migrations/20190508100337_admin_auth_group_access.php
index 77923387cc45813f2a273cb6a5e376807aa474fd..f9eb42f557fe7511227dcd208460f0ef63df0c6a 100644
--- a/database/migrations/20190508100337_admin_auth_group_access.php
+++ b/database/migrations/20190508100337_admin_auth_group_access.php
@@ -3,6 +3,7 @@
 use think\migration\Migrator;
 
 class AdminAuthGroupAccess extends Migrator {
+
     /**
      * Change Method.
      *
@@ -35,7 +36,6 @@ class AdminAuthGroupAccess extends Migrator {
      *   KEY `groupId` (`groupId`)
      * ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用户和组的对应关系';
      */
-
     public function change() {
         $table = $this->table('admin_auth_group_access', [
             'comment' => '用户和组的对应关系'
diff --git a/database/migrations/20190508101122_admin_auth_rule.php b/database/migrations/20190508101122_admin_auth_rule.php
index 9280fdafb7dff598c96f56b067faa2cafa4ce630..91efbe9cb39ec2faedf8f86406142eef01687bdf 100644
--- a/database/migrations/20190508101122_admin_auth_rule.php
+++ b/database/migrations/20190508101122_admin_auth_rule.php
@@ -3,6 +3,7 @@
 use think\migration\Migrator;
 
 class AdminAuthRule extends Migrator {
+
     /**
      * Change Method.
      *
@@ -35,7 +36,6 @@ class AdminAuthRule extends Migrator {
      *   PRIMARY KEY (`id`)
      * ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='权限细节';
      */
-
     public function change() {
         $table = $this->table('admin_auth_rule', [
             'comment' => '权限细节'
diff --git a/database/migrations/20190508152801_admin_fields.php b/database/migrations/20190508152801_admin_fields.php
index af5cd6102a09beb1f7ad20d67d2bcfd4143d6a50..49de1743611912b19eec9fadd789421a32cc9530 100644
--- a/database/migrations/20190508152801_admin_fields.php
+++ b/database/migrations/20190508152801_admin_fields.php
@@ -3,6 +3,7 @@
 use think\migration\Migrator;
 
 class AdminFields extends Migrator {
+
     /**
      * Change Method.
      *
@@ -41,7 +42,6 @@ class AdminFields extends Migrator {
      *   KEY `hash` (`hash`)
      * ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用于保存各个API的字段规则';
      */
-
     public function change() {
         $table = $this->table('admin_fields', [
             'comment' => '用于保存各个API的字段规则'
diff --git a/database/migrations/20190508153800_admin_group.php b/database/migrations/20190508153800_admin_group.php
index 6dd61bfd4253bd594cff1ecd572e5067607760c3..68edb471d2a3ac247928d3e0725441069db2a663 100644
--- a/database/migrations/20190508153800_admin_group.php
+++ b/database/migrations/20190508153800_admin_group.php
@@ -3,6 +3,7 @@
 use think\migration\Migrator;
 
 class AdminGroup extends Migrator {
+
     /**
      * Change Method.
      *
@@ -39,7 +40,6 @@ class AdminGroup extends Migrator {
      *   PRIMARY KEY (`id`)
      * ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='接口组管理';
      */
-
     public function change() {
         $table = $this->table('admin_group', [
             'comment' => '接口组管理'
diff --git a/database/migrations/20190513065521_admin_list.php b/database/migrations/20190513065521_admin_list.php
index 2b48480659d9318daf3a56286ce1fcb4c04e1902..321efade333a5af95cff245860fdbf7c99137f6f 100644
--- a/database/migrations/20190513065521_admin_list.php
+++ b/database/migrations/20190513065521_admin_list.php
@@ -3,6 +3,7 @@
 use think\migration\Migrator;
 
 class AdminList extends Migrator {
+
     /**
      * Change Method.
      *
@@ -42,7 +43,6 @@ class AdminList extends Migrator {
      *   KEY `hash` (`hash`)
      * ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用于维护接口信息';
      */
-
     public function change() {
         $table = $this->table('admin_list', [
             'comment' => '用于维护接口信息'
@@ -87,6 +87,5 @@ class AdminList extends Migrator {
             'default' => 'default',
             'comment' => '当前接口所属的接口分组'
         ])->addIndex(['hash'])->create();
-
     }
 }
diff --git a/database/migrations/20190513070628_admin_menu.php b/database/migrations/20190513070628_admin_menu.php
index a15d1edba8fb2c69e52f3d289e730e490ceafd71..6a40e6f9b966375f8b7b425f25141d0c23428bbd 100644
--- a/database/migrations/20190513070628_admin_menu.php
+++ b/database/migrations/20190513070628_admin_menu.php
@@ -3,6 +3,7 @@
 use think\migration\Migrator;
 
 class AdminMenu extends Migrator {
+
     /**
      * Change Method.
      *
@@ -39,7 +40,6 @@ class AdminMenu extends Migrator {
      *   PRIMARY KEY (`id`)
      * ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='目录信息';
      */
-
     public function change() {
         $table = $this->table('admin_menu', [
             'comment' => '目录信息'
diff --git a/database/migrations/20190513081034_admin_user.php b/database/migrations/20190513081034_admin_user.php
index 3cc651bc8189f74fe3e7bf25f6ab6fa51b83ac3e..d346b58ccfa356f0aae2583020d18fdbf231bdd6 100644
--- a/database/migrations/20190513081034_admin_user.php
+++ b/database/migrations/20190513081034_admin_user.php
@@ -3,6 +3,7 @@
 use think\migration\Migrator;
 
 class AdminUser extends Migrator {
+
     /**
      * Change Method.
      *
@@ -40,7 +41,6 @@ class AdminUser extends Migrator {
      *   KEY `create_time` (`create_time`)
      * ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='管理员认证信息';
      */
-
     public function change() {
         $table = $this->table('admin_user', [
             'comment' => '管理员认证信息'
diff --git a/database/migrations/20190513082503_admin_user_action.php b/database/migrations/20190513082503_admin_user_action.php
index e478a49e50f66a044296c41ad8e6d5811f548e85..faefe2469a9cf37051a4ab286be942e9900406af 100644
--- a/database/migrations/20190513082503_admin_user_action.php
+++ b/database/migrations/20190513082503_admin_user_action.php
@@ -3,6 +3,7 @@
 use think\migration\Migrator;
 
 class AdminUserAction extends Migrator {
+
     /**
      * Change Method.
      *
@@ -38,7 +39,6 @@ class AdminUserAction extends Migrator {
      *   KEY `uid` (`uid`)
      * ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用户操作日志';
      */
-
     public function change() {
         $table = $this->table('admin_user_action', [
             'comment' => '用户操作日志'
diff --git a/database/migrations/20190513085755_admin_user_data.php b/database/migrations/20190513085755_admin_user_data.php
index 772294d93ac5c9b006f741a06082bc598eae1b09..ee8395043797ee05219af1965e631b324b61c89b 100644
--- a/database/migrations/20190513085755_admin_user_data.php
+++ b/database/migrations/20190513085755_admin_user_data.php
@@ -1,10 +1,9 @@
 <?php
 
 use think\migration\Migrator;
-use think\migration\db\Column;
 
-class AdminUserData extends Migrator
-{
+class AdminUserData extends Migrator {
+
     /**
      * Change Method.
      *
@@ -39,7 +38,6 @@ class AdminUserData extends Migrator
      *   KEY `uid` (`uid`)
      * ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='管理员数据表';
      */
-
     public function change() {
         $table = $this->table('admin_user_data', [
             'comment' => '管理员数据表'
diff --git a/database/migrations/20190513155519_ini_admin_menu.php b/database/migrations/20190513155519_ini_admin_menu.php
index 6bad843176a81aa6f9d0e9070ddcae701bfa1906..bc838d6633e3d06a41815f7e13af720a0d298689 100644
--- a/database/migrations/20190513155519_ini_admin_menu.php
+++ b/database/migrations/20190513155519_ini_admin_menu.php
@@ -3,6 +3,7 @@
 use think\migration\Migrator;
 
 class IniAdminMenu extends Migrator {
+
     /**
      * 初始化数据
      * @author zhaoxiang <zhaoxiang051405@gmail.com>
diff --git a/database/migrations/20190514034923_ini_admin_group.php b/database/migrations/20190514034923_ini_admin_group.php
index dcaba812fb9da0579ddd62e3b817e0e882ac6f62..9f9bd5de7239e2c82055cd2a69dfc995a90ae6fc 100644
--- a/database/migrations/20190514034923_ini_admin_group.php
+++ b/database/migrations/20190514034923_ini_admin_group.php
@@ -1,9 +1,9 @@
 <?php
 
 use think\migration\Migrator;
-use think\migration\db\Column;
 
 class IniAdminGroup extends Migrator {
+
     /**
      * Change Method.
      *
@@ -30,7 +30,6 @@ class IniAdminGroup extends Migrator {
      * VALUES
      * (1, '默认分组', '默认分组', 1, 'default', 0, 0, '', 0);
      */
-
     public function up() {
         $data = [
             'name'        => '默认分组',
@@ -40,7 +39,7 @@ class IniAdminGroup extends Migrator {
             'create_time' => time(),
             'update_time' => time(),
             'image'       => '',
-            'hot'         => 0,
+            'hot'         => 0
         ];
 
         $this->table('admin_group')->insert($data)->saveData();
diff --git a/database/migrations/20190515031308_ini_admin_user.php b/database/migrations/20190515031308_ini_admin_user.php
index dd382f9ed6ee9c62b6af7197ff2e97431668b8fd..6e525b63f7f03d897ff59d8ce4a8703a740602e5 100644
--- a/database/migrations/20190515031308_ini_admin_user.php
+++ b/database/migrations/20190515031308_ini_admin_user.php
@@ -6,6 +6,7 @@ use \app\util\Strs;
 use \app\util\Tools;
 
 class IniAdminUser extends Migrator {
+
     /**
      * Change Method.
      *
@@ -27,7 +28,6 @@ class IniAdminUser extends Migrator {
      * Remember to call "create()" or "update()" and NOT "save()" when working
      * with the Table class.
      */
-
     public function up() {
         $pass = Strs::randString(8);
         $data = [