diff --git a/hsweb-core/src/main/java/org/hswebframework/web/id/IDGenerator.java b/hsweb-core/src/main/java/org/hswebframework/web/id/IDGenerator.java
index 5215fef8d..90eef6aca 100644
--- a/hsweb-core/src/main/java/org/hswebframework/web/id/IDGenerator.java
+++ b/hsweb-core/src/main/java/org/hswebframework/web/id/IDGenerator.java
@@ -34,6 +34,16 @@ import java.security.NoSuchAlgorithmException;
 public interface IDGenerator<T> {
     T generate();
 
+    /**
+     * 空ID生成器
+     */
+    IDGenerator<?> NULL = () -> null;
+
+    @SuppressWarnings("unchecked")
+    static <T> IDGenerator<T> getNullGenerator() {
+        return (IDGenerator) NULL;
+    }
+
     /**
      * 使用UUID生成id
      */
@@ -60,7 +70,7 @@ public interface IDGenerator<T> {
     /**
      * 雪花算法
      */
-    IDGenerator<Long>   SNOW_FLAKE        = SnowflakeIdGenerator.getInstance()::nextId;
+    IDGenerator<Long> SNOW_FLAKE = SnowflakeIdGenerator.getInstance()::nextId;
 
     /**
      * 雪花算法转String
diff --git a/hsweb-system/hsweb-system-authorization/hsweb-system-authorization-local/src/main/java/org/hswebframework/web/service/authorization/simple/SimpleUserService.java b/hsweb-system/hsweb-system-authorization/hsweb-system-authorization-local/src/main/java/org/hswebframework/web/service/authorization/simple/SimpleUserService.java
index 831e798dd..db8582aa1 100644
--- a/hsweb-system/hsweb-system-authorization/hsweb-system-authorization-local/src/main/java/org/hswebframework/web/service/authorization/simple/SimpleUserService.java
+++ b/hsweb-system/hsweb-system-authorization/hsweb-system-authorization-local/src/main/java/org/hswebframework/web/service/authorization/simple/SimpleUserService.java
@@ -16,6 +16,7 @@ import org.hswebframework.web.service.AbstractService;
 import org.hswebframework.web.service.DefaultDSLQueryService;
 import org.hswebframework.web.service.authorization.events.ClearUserAuthorizationCacheEvent;
 import org.hswebframework.web.service.authorization.events.UserModifiedEvent;
+import org.hswebframework.web.service.authorization.simple.terms.UserInRoleSqlTerm;
 import org.hswebframework.web.validate.ValidationException;
 import org.hswebframework.utils.ListUtils;
 import org.hswebframework.web.validator.group.CreateGroup;
@@ -76,6 +77,10 @@ public class SimpleUserService extends AbstractService<UserEntity, String>
         return entityFactory.newInstance(BindRoleUserEntity.class);
     }
 
+    protected IDGenerator<String> getIdGenerator() {
+        return IDGenerator.MD5;
+    }
+
     @Override
     @Transactional(readOnly = true)
     public UserEntity selectByUsername(String username) {
@@ -135,7 +140,7 @@ public class SimpleUserService extends AbstractService<UserEntity, String>
         //密码强度验证
         tryValidateProperty(passwordStrengthValidator, UserEntity.password, userEntity.getPassword());
         userEntity.setCreateTime(System.currentTimeMillis());
-        userEntity.setId(IDGenerator.MD5.generate());
+        userEntity.setId(getIdGenerator().generate());
         userEntity.setSalt(IDGenerator.RANDOM.generate());
         userEntity.setStatus(DataStatus.STATUS_ENABLED);
         //验证其他属性
@@ -168,9 +173,6 @@ public class SimpleUserService extends AbstractService<UserEntity, String>
     @Override
     @Caching(evict = {
             @CacheEvict(value = CacheConstants.USER_CACHE_NAME, key = "#userId")
-//           , @CacheEvict(value = CacheConstants.USER_AUTH_CACHE_NAME, key = "#userId"),
-//            @CacheEvict(value = CacheConstants.USER_AUTH_CACHE_NAME, key = "'user-menu-list:'+#userId"),
-//            @CacheEvict(value = CacheConstants.USER_AUTH_CACHE_NAME, key = "'menu-tree:'+#userId")
     })
     public void update(String userId, UserEntity userEntity) {
         userEntity.setId(userId);
@@ -298,6 +300,7 @@ public class SimpleUserService extends AbstractService<UserEntity, String>
         if (CollectionUtils.isEmpty(roleIdList)) {
             return new java.util.ArrayList<>();
         }
+        // org.hswebframework.web.service.authorization.simple.terms.UserInRoleSqlTerm
         return createQuery()
                 .where("id", "user-in-role", roleIdList)
                 .listNoPaging();