diff --git a/src/main/java/tech/riemann/ims/controller/platform/acl/RoleController.java b/src/main/java/tech/riemann/ims/controller/platform/acl/RoleController.java
index 0be8ac9..e0e407f 100644
--- a/src/main/java/tech/riemann/ims/controller/platform/acl/RoleController.java
+++ b/src/main/java/tech/riemann/ims/controller/platform/acl/RoleController.java
@@ -1,34 +1,25 @@
 package tech.riemann.ims.controller.platform.acl;
 
-import java.util.List;
-
-import org.nutz.lang.Strings;
-import org.springframework.http.HttpStatus;
-import org.springframework.validation.annotation.Validated;
-import org.springframework.web.bind.annotation.DeleteMapping;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.PutMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.ResponseStatus;
-import org.springframework.web.bind.annotation.RestController;
-
+import club.zhcs.lina.starter.exception.BizException;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
-
-import club.zhcs.lina.starter.exception.BizException;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import lombok.RequiredArgsConstructor;
+import org.nutz.lang.Strings;
+import org.nutz.lang.random.R;
+import org.springframework.http.HttpStatus;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
 import tech.riemann.ims.dto.response.PermissionInfo;
 import tech.riemann.ims.entity.acl.Permission;
 import tech.riemann.ims.entity.acl.Role;
 import tech.riemann.ims.service.acl.IRoleService;
 
+import java.util.List;
+
 /**
  * <p>
  * 角色 前端控制器
@@ -81,6 +72,7 @@ public class RoleController {
                 throw BizException.create("更新角色失败!");
             }
         } else {
+            role.setKey(R.UU16());
             if (roleService.save(role)) {
                 return role;
             } else {
diff --git a/src/main/java/tech/riemann/ims/controller/platform/acl/UserController.java b/src/main/java/tech/riemann/ims/controller/platform/acl/UserController.java
index 4f06d44..c390671 100644
--- a/src/main/java/tech/riemann/ims/controller/platform/acl/UserController.java
+++ b/src/main/java/tech/riemann/ims/controller/platform/acl/UserController.java
@@ -11,6 +11,7 @@ import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.validation.constraints.NotBlank;
 import lombok.RequiredArgsConstructor;
 import org.nutz.lang.Strings;
 import org.springframework.http.HttpStatus;
@@ -86,6 +87,7 @@ public class UserController {
     public User saveOrUpdateUser(@Validated @Parameter(description = "用户") @RequestBody User user) {
         if (user.getId() == null || user.getId() <= 0) {
             user.setPassword(PasswordUtils.randomSaltEncode(user.getPassword()));
+            if(existName(user.getName())) throw BizException.create("用户名已经存在");
             if (userService.save(user)) {
                 return user;
             } else {
@@ -100,6 +102,13 @@ public class UserController {
         }
     }
 
+    @GetMapping("user/exist-name")
+    @Operation(summary = "检查用户名是否存在,true存在,false不存在")
+    public boolean existName(@NotBlank String name) {
+        User one = userService.getOne(Wrappers.<User>lambdaQuery().eq(User::getName, name));
+        return one != null;
+    }
+
     @DeleteMapping("user/{id}")
     @Operation(summary = "删除用户")
     @ResponseStatus(HttpStatus.OK)
diff --git a/src/main/java/tech/riemann/ims/entity/acl/Role.java b/src/main/java/tech/riemann/ims/entity/acl/Role.java
index 02573e4..b3e44f8 100644
--- a/src/main/java/tech/riemann/ims/entity/acl/Role.java
+++ b/src/main/java/tech/riemann/ims/entity/acl/Role.java
@@ -42,7 +42,7 @@ public class Role extends IdBaseEntity {
     @Serial
     private static final long serialVersionUID = 1L;
 
-    @Schema(description = "角色key,英文,用来做业务", requiredMode = RequiredMode.REQUIRED)
+    @Schema(description = "角色key,英文,用来做业务")
     @TableField("r_key")
     @Column("r_key")
     @Comment("角色key,英文,用来做业务")