diff --git a/README.md b/README.md
index 69ea68c3d66305e572b09d5fa98bfb81331c0b65..ffac8543994e6603ad4128f02ec77731d445b50a 100644
--- a/README.md
+++ b/README.md
@@ -93,7 +93,7 @@ DDK-动态字典键，接入方只需要接入字典键SDK，即可以完成相
 | desc | varchar(80) | 功能描述 |
 | create_time | datetime | 创建时间 |
 | update_time | datetime | 更新时间 |
-| is_delete | int(11) | 状态 1有效，0无效 |
+| is_delete | int(11) | 状态 状态 1删除，0未删除 |
 | env | varchar(16) | 环境 |
 
 ### 事业群
@@ -332,11 +332,11 @@ CREATE TABLE `ddk_group`
 DROP TABLE IF EXISTS `ddk_lock`;
 CREATE TABLE `ddk_lock`
 (
-    `id`       bigint(20) NOT NULL AUTO_INCREMENT,
-    `resource` varchar(200) NOT NULL COMMENT '锁定的资源',
-    `desc`     varchar(200) NOT NULL DEFAULT '' COMMENT '描述',
-    `create_time`   datetime NOT NULL COMMENT '创建时间',
-    `env`      varchar(16)  NOT NULL COMMENT '环境',
+    `id`          bigint(20) NOT NULL AUTO_INCREMENT,
+    `resource`    varchar(200) NOT NULL COMMENT '锁定的资源',
+    `desc`        varchar(200) NOT NULL DEFAULT '' COMMENT '描述',
+    `create_time` datetime     NOT NULL COMMENT '创建时间',
+    `env`         varchar(16)  NOT NULL COMMENT '环境',
     PRIMARY KEY (`id`),
     UNIQUE KEY `uiq_idx_resource` (`resource`)
 ) ENGINE=InnoDB AUTO_INCREMENT=667 DEFAULT CHARSET=utf8mb4 COMMENT='数据库分布式锁表';
@@ -438,48 +438,44 @@ FOREIGN_KEY_CHECKS = 1;
 - 加锁的实现如下，比较简单的实现，一般分布式锁实现都是使用Redis等
 
 ```java
-@Service
-public class LockServiceImpl implements LockService {
-
-  private static final org.slf4j.Logger LOGGER  = LoggerFactory.getLogger(LockServiceImpl.class);
-
-  @Resource
-  private LockMapper                    lockMapper;
-
-  private static final int              TIMEOUT = 3000;
-
-  @Override
-  public Long acquire(String key) {
-    // 查询
-    String env = EnvUtils.getEnv();
-    LockDO oldLock = lockMapper.queryByResource(key, env);
-    if (oldLock != null) {
-      if (System.currentTimeMillis() - oldLock.getCreateTime().getTime() > TIMEOUT) {
-        release(key, oldLock.getId());
-      }
-      return null;
-    }
+@Service public class LockServiceImpl implements LockService {
+
+    private static final org.slf4j.Logger LOGGER = LoggerFactory.getLogger(LockServiceImpl.class);
+
+    @Resource private LockMapper lockMapper;
+
+    private static final int TIMEOUT = 3000;
 
-    try {
-      LockDO lockDO = new LockDO();
-      lockDO.setResource(key);
-      lockDO.setDesc(key);
-      lockDO.setEnv(env);
-      lockDO.setCreateTime(new Date());
-      lockMapper.insert(lockDO);
-      return lockDO.getId();
-    } catch (DuplicateKeyException ex) {
-      LOGGER.warn("[LockService][acquire][DuplicateKeyException] lock acquire error:{}", ThrowableUtil.stackTraceToString(ex));
-    } catch (Exception ex) {
-      LOGGER.warn("[LockService][acquire][Exception] lock acquire error:{}", ThrowableUtil.stackTraceToString(ex));
+    @Override public Long acquire(String key) {
+        // 查询
+        String env = EnvUtils.getEnv();
+        LockDO oldLock = lockMapper.queryByResource(key, env);
+        if (oldLock != null) {
+            if (System.currentTimeMillis() - oldLock.getCreateTime().getTime() > TIMEOUT) {
+                release(key, oldLock.getId());
+            }
+            return null;
+        }
+
+        try {
+            LockDO lockDO = new LockDO();
+            lockDO.setResource(key);
+            lockDO.setDesc(key);
+            lockDO.setEnv(env);
+            lockDO.setCreateTime(new Date());
+            lockMapper.insert(lockDO);
+            return lockDO.getId();
+        } catch (DuplicateKeyException ex) {
+            LOGGER.warn("[LockService][acquire][DuplicateKeyException] lock acquire error:{}", ThrowableUtil.stackTraceToString(ex));
+        } catch (Exception ex) {
+            LOGGER.warn("[LockService][acquire][Exception] lock acquire error:{}", ThrowableUtil.stackTraceToString(ex));
+        }
+        return null;
     }
-    return null;
-  }
 
-  @Override
-  public boolean release(String key, Long lockId) {
-    return lockMapper.delete(lockId, key, EnvUtils.getEnv()) > 0;
-  }
+    @Override public boolean release(String key, Long lockId) {
+        return lockMapper.delete(lockId, key, EnvUtils.getEnv()) > 0;
+    }
 }