diff --git a/README.md b/README.md
index 715de8714843850414e92b1e04d8a409cb796bf6..df82d775cf6c54b776e9c74e5df41c408c98b82f 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@
 ## change log
 | tag version | change logs | date |
 | --- | --- | --- |
+| v4.0.0 | 1.使用jwt令牌功能<br/>2.客户端信息保存到数据库，用户授权码保存到数据库</br>3.新增common模块保存公共功能| 2020-01-11 |
 | v3.0.0 | 1. 新增资源服务，可进行接口测试<br/>2. 修改了auth-center/docs/sql/init.sql | 2020-01-10 |
 | v2.0.0 | 实现自定义登陆页面、自定义授权页面 | 2021-01-07|
 | v1.0.0 | 实现初版认证服务器，可进行接口测试<br/>遗留问题：<br/>1. 登录页面加载速度太慢<br/>2. 授权页面太丑 | 2021-01-07 |
@@ -12,7 +13,8 @@
 | --- | ---|
 | [auth-center](auth-center) | 认证服务 |
 | [resource-server](resource-server)| 资源服务|
-| [register-center](register-center)| 注册中心（未实现）|
+| [register-center](register-center)| 注册中心服务（未实现）|
+| [common](common) |公共模块，保存公共功能|
 
 
 未完待续
diff --git a/auth-center/docs/sql/init.sql b/auth-center/docs/sql/init.sql
index dc7a682261ff804196b03076321de5ec9e7497d5..3633317d0f34e9a175a3b64bb55480936485103b 100644
--- a/auth-center/docs/sql/init.sql
+++ b/auth-center/docs/sql/init.sql
@@ -41,8 +41,8 @@ CREATE TABLE `oauth_client_details` (
 /*Data for the table `oauth_client_details` */
 
 insert  into `oauth_client_details`(`client_id`,`resource_ids`,`client_secret`,`scope`,`authorized_grant_types`,`web_server_redirect_uri`,`authorities`,`access_token_validity`,`refresh_token_validity`,`additional_information`,`create_time`,`archived`,`trusted`,`autoapprove`) values
-('c1','res1','$2a$10$Tq3x4CjWgd5Fz92v.FvRoOQTnsG8eIlNj7dfHTD/ZQ28XfdbNuA/S','ROLE_ADMIN,ROLE_USER,ROLE_API','client_credentials,password,authorization_code,implicit,refresh_token','https://www.baidu.com',NULL,7200,259200,NULL,'2021-01-11 09:09:53',0,0,'false'),
-('c2','res2','$2a$10$a3SXX5msIFfb2UlN65WrUuZVZCgSqp3ZynnOUq.MJHuSyH7QndJeW','ROLE_API','client_credentials,password,authorization_code,implicit,refresh_token','https://www.baidu.com',NULL,31536000,2592000,NULL,'2021-01-11 09:09:56',0,0,'false');
+('c1','res1','$2a$10$X2xVwW.7cOEh2niPqHYAne9EnjRJFj7QI4TqfmnDou9fT/45sCFEm','ROLE_ADMIN,ROLE_USER,ROLE_API','client_credentials,password,authorization_code,implicit,refresh_token','https://www.baidu.com',NULL,7200,259200,NULL,'2021-01-11 09:09:53',0,0,'false'),
+('c2','res2','$2a$10$X2xVwW.7cOEh2niPqHYAne9EnjRJFj7QI4TqfmnDou9fT/45sCFEm','ROLE_API','client_credentials,password,authorization_code,implicit,refresh_token','https://www.baidu.com',NULL,31536000,2592000,NULL,'2021-01-11 09:09:56',0,0,'false');
 
 /*Table structure for table `oauth_code` */
 
diff --git a/common/README.md b/common/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..a30a9467945b3b266413d968782907df57f66be1
--- /dev/null
+++ b/common/README.md
@@ -0,0 +1,4 @@
+# README
+
+该模块并非是一个单独的server，而是作为一个公共模块提供依赖给其它服务使用，比如accesslog
+的集成（authcenter不生效，可能是因为都是基于过滤器做的，并没有Controller方法）。
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