diff --git a/ruoyi-api/ruoyi-api-system/src/main/java/org/dromara/system/api/RemoteDeptService.java b/ruoyi-api/ruoyi-api-system/src/main/java/org/dromara/system/api/RemoteDeptService.java
index 2ece9281..a8ffb5d4 100644
--- a/ruoyi-api/ruoyi-api-system/src/main/java/org/dromara/system/api/RemoteDeptService.java
+++ b/ruoyi-api/ruoyi-api-system/src/main/java/org/dromara/system/api/RemoteDeptService.java
@@ -3,6 +3,7 @@ package org.dromara.system.api;
 import org.dromara.system.api.domain.vo.RemoteDeptVo;
 
 import java.util.List;
+import java.util.Map;
 
 /**
  * 部门服务
@@ -34,4 +35,12 @@ public interface RemoteDeptService {
      */
     List<RemoteDeptVo> selectDeptsByList();
 
+    /**
+     * 根据部门 ID 列表查询部门名称映射关系
+     *
+     * @param deptIds 部门 ID 列表
+     * @return Map，其中 key 为部门 ID，value 为对应的部门名称
+     */
+    Map<Long, String> selectDeptNamesByIds(List<Long> deptIds);
+
 }
diff --git a/ruoyi-api/ruoyi-api-system/src/main/java/org/dromara/system/api/RemotePostService.java b/ruoyi-api/ruoyi-api-system/src/main/java/org/dromara/system/api/RemotePostService.java
new file mode 100644
index 00000000..2e5ad1a8
--- /dev/null
+++ b/ruoyi-api/ruoyi-api-system/src/main/java/org/dromara/system/api/RemotePostService.java
@@ -0,0 +1,21 @@
+package org.dromara.system.api;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 岗位服务
+ *
+ * @author Lion Li
+ */
+public interface RemotePostService {
+
+    /**
+     * 根据岗位 ID 列表查询岗位名称映射关系
+     *
+     * @param postIds 岗位 ID 列表
+     * @return Map，其中 key 为岗位 ID，value 为对应的岗位名称
+     */
+    Map<Long, String> selectPostNamesByIds(List<Long> postIds);
+
+}
diff --git a/ruoyi-api/ruoyi-api-system/src/main/java/org/dromara/system/api/RemoteRoleService.java b/ruoyi-api/ruoyi-api-system/src/main/java/org/dromara/system/api/RemoteRoleService.java
new file mode 100644
index 00000000..9c976ee6
--- /dev/null
+++ b/ruoyi-api/ruoyi-api-system/src/main/java/org/dromara/system/api/RemoteRoleService.java
@@ -0,0 +1,21 @@
+package org.dromara.system.api;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 角色服务
+ *
+ * @author Lion Li
+ */
+public interface RemoteRoleService {
+
+    /**
+     * 根据角色 ID 列表查询角色名称映射关系
+     *
+     * @param roleIds 角色 ID 列表
+     * @return Map，其中 key 为角色 ID，value 为对应的角色名称
+     */
+    Map<Long, String> selectRoleNamesByIds(List<Long> roleIds);
+
+}
diff --git a/ruoyi-api/ruoyi-api-system/src/main/java/org/dromara/system/api/RemoteUserService.java b/ruoyi-api/ruoyi-api-system/src/main/java/org/dromara/system/api/RemoteUserService.java
index 3e8b5485..0bda9538 100644
--- a/ruoyi-api/ruoyi-api-system/src/main/java/org/dromara/system/api/RemoteUserService.java
+++ b/ruoyi-api/ruoyi-api-system/src/main/java/org/dromara/system/api/RemoteUserService.java
@@ -165,28 +165,4 @@ public interface RemoteUserService {
      */
     Map<Long, String> selectUserNamesByIds(List<Long> userIds);
 
-    /**
-     * 根据角色 ID 列表查询角色名称映射关系
-     *
-     * @param roleIds 角色 ID 列表
-     * @return Map，其中 key 为角色 ID，value 为对应的角色名称
-     */
-    Map<Long, String> selectRoleNamesByIds(List<Long> roleIds);
-
-    /**
-     * 根据部门 ID 列表查询部门名称映射关系
-     *
-     * @param deptIds 部门 ID 列表
-     * @return Map，其中 key 为部门 ID，value 为对应的部门名称
-     */
-    Map<Long, String> selectDeptNamesByIds(List<Long> deptIds);
-
-    /**
-     * 根据岗位 ID 列表查询岗位名称映射关系
-     *
-     * @param postIds 岗位 ID 列表
-     * @return Map，其中 key 为岗位 ID，value 为对应的岗位名称
-     */
-    Map<Long, String> selectPostNamesByIds(List<Long> postIds);
-
 }
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/system/SysPostController.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/system/SysPostController.java
index b48e6ecd..2fff6028 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/system/SysPostController.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/system/SysPostController.java
@@ -19,6 +19,7 @@ import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 /**
@@ -107,7 +108,7 @@ public class SysPostController extends BaseController {
     @Log(title = "岗位管理", businessType = BusinessType.DELETE)
     @DeleteMapping("/{postIds}")
     public R<Void> remove(@PathVariable Long[] postIds) {
-        return toAjax(postService.deletePostByIds(postIds));
+        return toAjax(postService.deletePostByIds(Arrays.asList(postIds)));
     }
 
     /**
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteDataScopeServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteDataScopeServiceImpl.java
index 92717394..858a436d 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteDataScopeServiceImpl.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteDataScopeServiceImpl.java
@@ -9,7 +9,6 @@ import org.apache.dubbo.config.annotation.DubboService;
 import org.dromara.common.core.constant.CacheNames;
 import org.dromara.common.core.utils.StreamUtils;
 import org.dromara.system.api.RemoteDataScopeService;
-import org.dromara.system.domain.SysDept;
 import org.dromara.system.domain.SysRoleDept;
 import org.dromara.system.mapper.SysDeptMapper;
 import org.dromara.system.mapper.SysRoleDeptMapper;
@@ -68,13 +67,8 @@ public class RemoteDataScopeServiceImpl implements RemoteDataScopeService {
         if (ObjectUtil.isNull(deptId)) {
             return "-1";
         }
-        List<SysDept> deptList = deptMapper.selectListByParentId(deptId);
-        List<Long> ids = StreamUtils.toList(deptList, SysDept::getDeptId);
-        ids.add(deptId);
-        if (CollUtil.isNotEmpty(ids)) {
-            return StreamUtils.join(ids, Convert::toStr);
-        }
-        return "-1";
+        List<Long> deptIds = deptMapper.selectDeptAndChildById(deptId);
+        return CollUtil.isNotEmpty(deptIds) ? StreamUtils.join(deptIds, Convert::toStr) : "-1";
     }
 
 }
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteDeptServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteDeptServiceImpl.java
index 892d4692..148f5f90 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteDeptServiceImpl.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteDeptServiceImpl.java
@@ -1,15 +1,23 @@
 package org.dromara.system.dubbo;
 
 import cn.hutool.core.bean.BeanUtil;
+import cn.hutool.core.collection.CollUtil;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import lombok.RequiredArgsConstructor;
 import org.apache.dubbo.config.annotation.DubboService;
+import org.dromara.common.core.constant.SystemConstants;
+import org.dromara.common.core.utils.StreamUtils;
 import org.dromara.system.api.RemoteDeptService;
 import org.dromara.system.api.domain.vo.RemoteDeptVo;
+import org.dromara.system.domain.SysDept;
 import org.dromara.system.domain.vo.SysDeptVo;
+import org.dromara.system.mapper.SysDeptMapper;
 import org.dromara.system.service.ISysDeptService;
 import org.springframework.stereotype.Service;
 
+import java.util.Collections;
 import java.util.List;
+import java.util.Map;
 
 /**
  * 部门服务
@@ -21,7 +29,8 @@ import java.util.List;
 @DubboService
 public class RemoteDeptServiceImpl implements RemoteDeptService {
 
-    private final ISysDeptService sysDeptService;
+    private final ISysDeptService deptService;
+    private final SysDeptMapper deptMapper;
 
     /**
      * 通过部门ID查询部门名称
@@ -31,7 +40,7 @@ public class RemoteDeptServiceImpl implements RemoteDeptService {
      */
     @Override
     public String selectDeptNameByIds(String deptIds) {
-        return sysDeptService.selectDeptNameByIds(deptIds);
+        return deptService.selectDeptNameByIds(deptIds);
     }
 
     /**
@@ -42,7 +51,7 @@ public class RemoteDeptServiceImpl implements RemoteDeptService {
      */
     @Override
     public Long selectDeptLeaderById(Long deptId) {
-        SysDeptVo vo = sysDeptService.selectDeptById(deptId);
+        SysDeptVo vo = deptService.selectDeptById(deptId);
         return vo.getLeader();
     }
 
@@ -53,8 +62,29 @@ public class RemoteDeptServiceImpl implements RemoteDeptService {
      */
     @Override
     public List<RemoteDeptVo> selectDeptsByList() {
-        List<SysDeptVo> list = sysDeptService.selectDeptsSimple();
+        List<SysDeptVo> list = deptMapper.selectDeptList(new LambdaQueryWrapper<SysDept>()
+            .select(SysDept::getDeptId, SysDept::getDeptName, SysDept::getParentId)
+            .eq(SysDept::getStatus, SystemConstants.NORMAL));
         return BeanUtil.copyToList(list, RemoteDeptVo.class);
     }
 
+    /**
+     * 根据部门 ID 列表查询部门名称映射关系
+     *
+     * @param deptIds 部门 ID 列表
+     * @return Map，其中 key 为部门 ID，value 为对应的部门名称
+     */
+    @Override
+    public Map<Long, String> selectDeptNamesByIds(List<Long> deptIds) {
+        if (CollUtil.isEmpty(deptIds)) {
+            return Collections.emptyMap();
+        }
+        List<SysDept> list = deptMapper.selectList(
+            new LambdaQueryWrapper<SysDept>()
+                .select(SysDept::getDeptId, SysDept::getDeptName)
+                .in(SysDept::getDeptId, deptIds)
+        );
+        return StreamUtils.toMap(list, SysDept::getDeptId, SysDept::getDeptName);
+    }
+
 }
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemotePostServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemotePostServiceImpl.java
new file mode 100644
index 00000000..ffe79755
--- /dev/null
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemotePostServiceImpl.java
@@ -0,0 +1,48 @@
+package org.dromara.system.dubbo;
+
+import cn.hutool.core.collection.CollUtil;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import lombok.RequiredArgsConstructor;
+import org.apache.dubbo.config.annotation.DubboService;
+import org.dromara.common.core.utils.StreamUtils;
+import org.dromara.system.api.RemotePostService;
+import org.dromara.system.domain.SysPost;
+import org.dromara.system.mapper.SysPostMapper;
+import org.springframework.stereotype.Service;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 岗位服务
+ *
+ * @author Lion Li
+ */
+@RequiredArgsConstructor
+@Service
+@DubboService
+public class RemotePostServiceImpl implements RemotePostService {
+
+    private final SysPostMapper postMapper;
+
+    /**
+     * 根据岗位 ID 列表查询岗位名称映射关系
+     *
+     * @param postIds 岗位 ID 列表
+     * @return Map，其中 key 为岗位 ID，value 为对应的岗位名称
+     */
+    @Override
+    public Map<Long, String> selectPostNamesByIds(List<Long> postIds) {
+        if (CollUtil.isEmpty(postIds)) {
+            return Collections.emptyMap();
+        }
+        List<SysPost> list = postMapper.selectList(
+            new LambdaQueryWrapper<SysPost>()
+                .select(SysPost::getPostId, SysPost::getPostName)
+                .in(SysPost::getPostId, postIds)
+        );
+        return StreamUtils.toMap(list, SysPost::getPostId, SysPost::getPostName);
+    }
+
+}
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteRoleServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteRoleServiceImpl.java
new file mode 100644
index 00000000..9ce4afde
--- /dev/null
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteRoleServiceImpl.java
@@ -0,0 +1,48 @@
+package org.dromara.system.dubbo;
+
+import cn.hutool.core.collection.CollUtil;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import lombok.RequiredArgsConstructor;
+import org.apache.dubbo.config.annotation.DubboService;
+import org.dromara.common.core.utils.StreamUtils;
+import org.dromara.system.api.RemoteRoleService;
+import org.dromara.system.domain.SysRole;
+import org.dromara.system.mapper.SysRoleMapper;
+import org.springframework.stereotype.Service;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 角色服务
+ *
+ * @author Lion Li
+ */
+@RequiredArgsConstructor
+@Service
+@DubboService
+public class RemoteRoleServiceImpl implements RemoteRoleService {
+
+    private final SysRoleMapper roleMapper;
+
+    /**
+     * 根据角色 ID 列表查询角色名称映射关系
+     *
+     * @param roleIds 角色 ID 列表
+     * @return Map，其中 key 为角色 ID，value 为对应的角色名称
+     */
+    @Override
+    public Map<Long, String> selectRoleNamesByIds(List<Long> roleIds) {
+        if (CollUtil.isEmpty(roleIds)) {
+            return Collections.emptyMap();
+        }
+        List<SysRole> list = roleMapper.selectList(
+            new LambdaQueryWrapper<SysRole>()
+                .select(SysRole::getRoleId, SysRole::getRoleName)
+                .in(SysRole::getRoleId, roleIds)
+        );
+        return StreamUtils.toMap(list, SysRole::getRoleId, SysRole::getRoleName);
+    }
+
+}
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteUserServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteUserServiceImpl.java
index 23fd16b4..974e54b8 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteUserServiceImpl.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/dubbo/RemoteUserServiceImpl.java
@@ -24,18 +24,21 @@ import org.dromara.system.api.model.LoginUser;
 import org.dromara.system.api.model.PostDTO;
 import org.dromara.system.api.model.RoleDTO;
 import org.dromara.system.api.model.XcxLoginUser;
-import org.dromara.system.domain.*;
+import org.dromara.system.domain.SysUser;
+import org.dromara.system.domain.SysUserPost;
+import org.dromara.system.domain.SysUserRole;
 import org.dromara.system.domain.bo.SysUserBo;
 import org.dromara.system.domain.vo.SysDeptVo;
 import org.dromara.system.domain.vo.SysPostVo;
 import org.dromara.system.domain.vo.SysRoleVo;
 import org.dromara.system.domain.vo.SysUserVo;
-import org.dromara.system.mapper.*;
+import org.dromara.system.mapper.SysUserMapper;
+import org.dromara.system.mapper.SysUserPostMapper;
+import org.dromara.system.mapper.SysUserRoleMapper;
 import org.dromara.system.service.*;
 import org.springframework.stereotype.Service;
 
 import java.util.*;
-import java.util.stream.Collectors;
 
 /**
  * 用户服务
@@ -54,9 +57,6 @@ public class RemoteUserServiceImpl implements RemoteUserService {
     private final ISysDeptService deptService;
     private final ISysPostService postService;
     private final SysUserMapper userMapper;
-    private final SysRoleMapper roleMapper;
-    private final SysDeptMapper deptMapper;
-    private final SysPostMapper postMapper;
     private final SysUserRoleMapper userRoleMapper;
     private final SysUserPostMapper userPostMapper;
 
@@ -403,74 +403,16 @@ public class RemoteUserServiceImpl implements RemoteUserService {
      * @param userIds 用户 ID 列表
      * @return Map，其中 key 为用户 ID，value 为对应的用户名称
      */
-    @Override
     public Map<Long, String> selectUserNamesByIds(List<Long> userIds) {
         if (CollUtil.isEmpty(userIds)) {
             return Collections.emptyMap();
         }
-        return userMapper.selectList(
-                new LambdaQueryWrapper<SysUser>()
-                    .select(SysUser::getUserId, SysUser::getNickName)
-                    .in(SysUser::getUserId, userIds)
-            ).stream()
-            .collect(Collectors.toMap(SysUser::getUserId, SysUser::getNickName));
-    }
-
-    /**
-     * 根据角色 ID 列表查询角色名称映射关系
-     *
-     * @param roleIds 角色 ID 列表
-     * @return Map，其中 key 为角色 ID，value 为对应的角色名称
-     */
-    @Override
-    public Map<Long, String> selectRoleNamesByIds(List<Long> roleIds) {
-        if (CollUtil.isEmpty(roleIds)) {
-            return Collections.emptyMap();
-        }
-        return roleMapper.selectList(
-                new LambdaQueryWrapper<SysRole>()
-                    .select(SysRole::getRoleId, SysRole::getRoleName)
-                    .in(SysRole::getRoleId, roleIds)
-            ).stream()
-            .collect(Collectors.toMap(SysRole::getRoleId, SysRole::getRoleName));
-    }
-
-    /**
-     * 根据部门 ID 列表查询部门名称映射关系
-     *
-     * @param deptIds 部门 ID 列表
-     * @return Map，其中 key 为部门 ID，value 为对应的部门名称
-     */
-    @Override
-    public Map<Long, String> selectDeptNamesByIds(List<Long> deptIds) {
-        if (CollUtil.isEmpty(deptIds)) {
-            return Collections.emptyMap();
-        }
-        return deptMapper.selectList(
-                new LambdaQueryWrapper<SysDept>()
-                    .select(SysDept::getDeptId, SysDept::getDeptName)
-                    .in(SysDept::getDeptId, deptIds)
-            ).stream()
-            .collect(Collectors.toMap(SysDept::getDeptId, SysDept::getDeptName));
-    }
-
-    /**
-     * 根据岗位 ID 列表查询岗位名称映射关系
-     *
-     * @param postIds 岗位 ID 列表
-     * @return Map，其中 key 为岗位 ID，value 为对应的岗位名称
-     */
-    @Override
-    public Map<Long, String> selectPostNamesByIds(List<Long> postIds) {
-        if (CollUtil.isEmpty(postIds)) {
-            return Collections.emptyMap();
-        }
-        return postMapper.selectList(
-                new LambdaQueryWrapper<SysPost>()
-                    .select(SysPost::getPostId, SysPost::getPostName)
-                    .in(SysPost::getPostId, postIds)
-            ).stream()
-            .collect(Collectors.toMap(SysPost::getPostId, SysPost::getPostName));
+        List<SysUser> list = userMapper.selectList(
+            new LambdaQueryWrapper<SysUser>()
+                .select(SysUser::getUserId, SysUser::getNickName)
+                .in(SysUser::getUserId, userIds)
+        );
+        return StreamUtils.toMap(list, SysUser::getUserId, SysUser::getNickName);
     }
 
 }
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/mapper/SysDeptMapper.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/mapper/SysDeptMapper.java
index cbfdf32f..655526fb 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/mapper/SysDeptMapper.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/mapper/SysDeptMapper.java
@@ -4,6 +4,7 @@ import com.baomidou.mybatisplus.core.conditions.Wrapper;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import org.apache.ibatis.annotations.Param;
+import org.dromara.common.core.utils.StreamUtils;
 import org.dromara.common.mybatis.annotation.DataColumn;
 import org.dromara.common.mybatis.annotation.DataPermission;
 import org.dromara.common.mybatis.core.mapper.BaseMapperPlus;
@@ -69,6 +70,19 @@ public interface SysDeptMapper extends BaseMapperPlus<SysDept, SysDeptVo> {
             .apply(DataBaseHelper.findInSet(parentId, "ancestors")));
     }
 
+    /**
+     * 查询某个部门及其所有子部门ID（含自身）
+     *
+     * @param parentId 父部门ID
+     * @return 部门ID集合
+     */
+    default List<Long> selectDeptAndChildById(Long parentId) {
+        List<SysDept> deptList = this.selectListByParentId(parentId);
+        List<Long> deptIds = StreamUtils.toList(deptList, SysDept::getDeptId);
+        deptIds.add(parentId);
+        return deptIds;
+    }
+
     /**
      * 根据角色ID查询部门树信息
      *
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysDeptService.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysDeptService.java
index 2e99357b..6d6d2105 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysDeptService.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysDeptService.java
@@ -144,10 +144,4 @@ public interface ISysDeptService {
      */
     int deleteDeptById(Long deptId);
 
-    /**
-     * 查询部门(简单查询)
-     *
-     * @return 部门列表
-     */
-    List<SysDeptVo> selectDeptsSimple();
 }
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysPostService.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysPostService.java
index a760d497..511d842e 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysPostService.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysPostService.java
@@ -110,7 +110,7 @@ public interface ISysPostService {
      * @param postIds 需要删除的岗位ID
      * @return 结果
      */
-    int deletePostByIds(Long[] postIds);
+    int deletePostByIds(List<Long> postIds);
 
     /**
      * 新增保存岗位信息
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysDeptServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysDeptServiceImpl.java
index 7107b4ac..389678a1 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysDeptServiceImpl.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysDeptServiceImpl.java
@@ -107,10 +107,7 @@ public class SysDeptServiceImpl implements ISysDeptService {
         if (ObjectUtil.isNotNull(bo.getBelongDeptId())) {
             //部门树搜索
             lqw.and(x -> {
-                Long parentId = bo.getBelongDeptId();
-                List<SysDept> deptList = baseMapper.selectListByParentId(parentId);
-                List<Long> deptIds = StreamUtils.toList(deptList, SysDept::getDeptId);
-                deptIds.add(parentId);
+                List<Long> deptIds = baseMapper.selectDeptAndChildById(bo.getBelongDeptId());
                 x.in(SysDept::getDeptId, deptIds);
             });
         }
@@ -384,16 +381,4 @@ public class SysDeptServiceImpl implements ISysDeptService {
         return baseMapper.deleteById(deptId);
     }
 
-    /**
-     * 查询部门(简单查询)
-     *
-     * @return 部门列表
-     */
-    @Override
-    public List<SysDeptVo> selectDeptsSimple() {
-        return baseMapper.selectDeptList(new LambdaQueryWrapper<SysDept>()
-            .select(SysDept::getDeptId, SysDept::getDeptName, SysDept::getParentId)
-            .eq(SysDept::getStatus, SystemConstants.NORMAL));
-    }
-
 }
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysPostServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysPostServiceImpl.java
index 942b0454..ced757f4 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysPostServiceImpl.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysPostServiceImpl.java
@@ -13,7 +13,6 @@ import org.dromara.common.core.utils.StreamUtils;
 import org.dromara.common.core.utils.StringUtils;
 import org.dromara.common.mybatis.core.page.PageQuery;
 import org.dromara.common.mybatis.core.page.TableDataInfo;
-import org.dromara.system.domain.SysDept;
 import org.dromara.system.domain.SysPost;
 import org.dromara.system.domain.SysUserPost;
 import org.dromara.system.domain.bo.SysPostBo;
@@ -24,7 +23,6 @@ import org.dromara.system.mapper.SysUserPostMapper;
 import org.dromara.system.service.ISysPostService;
 import org.springframework.stereotype.Service;
 
-import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
 
@@ -91,9 +89,7 @@ public class SysPostServiceImpl implements ISysPostService {
         } else if (ObjectUtil.isNotNull(bo.getBelongDeptId())) {
             //部门树搜索
             wrapper.and(x -> {
-                List<SysDept> deptList = deptMapper.selectListByParentId(bo.getBelongDeptId());
-                List<Long> deptIds = StreamUtils.toList(deptList, SysDept::getDeptId);
-                deptIds.add(bo.getBelongDeptId());
+                List<Long> deptIds = deptMapper.selectDeptAndChildById(bo.getBelongDeptId());
                 x.in(SysPost::getDeptId, deptIds);
             });
         }
@@ -216,14 +212,14 @@ public class SysPostServiceImpl implements ISysPostService {
      * @return 结果
      */
     @Override
-    public int deletePostByIds(Long[] postIds) {
-        for (Long postId : postIds) {
-            SysPost post = baseMapper.selectById(postId);
-            if (countUserPostById(postId) > 0) {
+    public int deletePostByIds(List<Long> postIds) {
+        List<SysPost> list = baseMapper.selectByIds(postIds);
+        for (SysPost post : list) {
+            if (this.countUserPostById(post.getPostId()) > 0) {
                 throw new ServiceException(String.format("%1$s已分配，不能删除!", post.getPostName()));
             }
         }
-        return baseMapper.deleteByIds(Arrays.asList(postIds));
+        return baseMapper.deleteByIds(postIds);
     }
 
     /**
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysUserServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysUserServiceImpl.java
index f4c4ccad..e347f1e9 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysUserServiceImpl.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysUserServiceImpl.java
@@ -77,10 +77,8 @@ public class SysUserServiceImpl implements ISysUserService {
             .between(params.get("beginTime") != null && params.get("endTime") != null,
                 "u.create_time", params.get("beginTime"), params.get("endTime"))
             .and(ObjectUtil.isNotNull(user.getDeptId()), w -> {
-                List<SysDept> deptList = deptMapper.selectListByParentId(user.getDeptId());
-                List<Long> ids = StreamUtils.toList(deptList, SysDept::getDeptId);
-                ids.add(user.getDeptId());
-                w.in("u.dept_id", ids);
+                List<Long> deptIds = deptMapper.selectDeptAndChildById(user.getDeptId());
+                w.in("u.dept_id", deptIds);
             }).orderByAsc("u.user_id");
         return baseMapper.selectUserExportList(wrapper);
     }
@@ -98,9 +96,7 @@ public class SysUserServiceImpl implements ISysUserService {
             .between(params.get("beginTime") != null && params.get("endTime") != null,
                 SysUser::getCreateTime, params.get("beginTime"), params.get("endTime"))
             .and(ObjectUtil.isNotNull(user.getDeptId()), w -> {
-                List<SysDept> deptList = deptMapper.selectListByParentId(user.getDeptId());
-                List<Long> ids = StreamUtils.toList(deptList, SysDept::getDeptId);
-                ids.add(user.getDeptId());
+                List<Long> ids = deptMapper.selectDeptAndChildById(user.getDeptId());
                 w.in(SysUser::getDeptId, ids);
             }).orderByAsc(SysUser::getUserId);
         if (StringUtils.isNotBlank(user.getExcludeUserIds())) {
diff --git a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwInstanceServiceImpl.java b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwInstanceServiceImpl.java
index 0c1f21b7..a55e7708 100644
--- a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwInstanceServiceImpl.java
+++ b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwInstanceServiceImpl.java
@@ -49,7 +49,7 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import java.util.*;
-import java.util.stream.Collectors;
+import java.util.function.Function;
 
 /**
  * 流程实例 服务层实现
@@ -203,9 +203,11 @@ public class FlwInstanceServiceImpl implements IFlwInstanceService {
             return false;
         }
         // 获取定义信息
-        Map<Long, Definition> definitionMap = defService.getByIds(
-            StreamUtils.toList(instances, Instance::getDefinitionId)
-        ).stream().collect(Collectors.toMap(Definition::getId, definition -> definition));
+        Map<Long, Definition> definitionMap = StreamUtils.toMap(
+            defService.getByIds(StreamUtils.toList(instances, Instance::getDefinitionId)),
+            Definition::getId,
+            Function.identity()
+        );
 
         // 逐一触发删除事件
         instances.forEach(instance -> {
diff --git a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwTaskAssigneeServiceImpl.java b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwTaskAssigneeServiceImpl.java
index ccb5106e..fab31c87 100644
--- a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwTaskAssigneeServiceImpl.java
+++ b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwTaskAssigneeServiceImpl.java
@@ -11,9 +11,7 @@ import org.apache.dubbo.config.annotation.DubboReference;
 import org.dromara.common.core.enums.FormatsType;
 import org.dromara.common.core.utils.DateUtils;
 import org.dromara.common.core.utils.StringUtils;
-import org.dromara.system.api.RemoteDeptService;
-import org.dromara.system.api.RemoteTaskAssigneeService;
-import org.dromara.system.api.RemoteUserService;
+import org.dromara.system.api.*;
 import org.dromara.system.api.domain.bo.RemoteTaskAssigneeBo;
 import org.dromara.system.api.domain.vo.RemoteDeptVo;
 import org.dromara.system.api.domain.vo.RemoteTaskAssigneeVo;
@@ -50,6 +48,10 @@ public class FlwTaskAssigneeServiceImpl implements IFlwTaskAssigneeService, Hand
     private RemoteUserService remoteUserService;
     @DubboReference
     private RemoteDeptService remoteDeptService;
+    @DubboReference
+    private RemoteRoleService remoteRoleService;
+    @DubboReference
+    private RemotePostService remotePostService;
 
     /**
      * 获取办理人权限设置列表tabs页签
@@ -226,9 +228,9 @@ public class FlwTaskAssigneeServiceImpl implements IFlwTaskAssigneeService, Hand
     private Map<Long, String> getNamesByType(TaskAssigneeEnum type, List<Long> ids) {
         return switch (type) {
             case USER -> remoteUserService.selectUserNamesByIds(ids);
-            case ROLE -> remoteUserService.selectRoleNamesByIds(ids);
-            case DEPT -> remoteUserService.selectDeptNamesByIds(ids);
-            case POST -> remoteUserService.selectPostNamesByIds(ids);
+            case ROLE -> remoteRoleService.selectRoleNamesByIds(ids);
+            case DEPT -> remoteDeptService.selectDeptNamesByIds(ids);
+            case POST -> remotePostService.selectPostNamesByIds(ids);
         };
     }