diff --git a/OpenAuth.App/DbExtension.cs b/OpenAuth.App/DbExtension.cs
index b09212bc..559869e4 100644
--- a/OpenAuth.App/DbExtension.cs
+++ b/OpenAuth.App/DbExtension.cs
@@ -85,6 +85,11 @@ namespace OpenAuth.App
         /// <returns></returns>
         public IList<SysTableColumn> GetDbTableStructure(string tableName)
         {
+            if(string.IsNullOrEmpty(tableName))
+            {
+                return new List<SysTableColumn>();
+            }
+
             //如果是空,说明没有通过ProcessExternalDb设置过，直接从本地读取
             if(string.IsNullOrEmpty(_dbTypeStr)){
                 _dbTypeStr = _appConfiguration.Value.DbTypes[_httpContextAccessor.GetTenantId()];
@@ -414,6 +419,22 @@ namespace OpenAuth.App
             return new List<SysTableColumn>();
         }
 
+        /// <summary>
+        /// 通过表名和外部数据源ID获取表结构
+        /// </summary>
+        /// <param name="tableName">表名</param>
+        /// <param name="externalDataSourceId">外部数据源ID</param>
+        /// <returns></returns>
+        public IList<SysTableColumn> GetDbTableStructure(string tableName, string externalDataSourceId){
+            var connection = SugarClient.Queryable<ExternalDataSource>().First(u => u.Id == externalDataSourceId);
+            if (connection != null)
+            {
+                var dbType = connection.Dbtype;
+                SetConnection(connection.Connectionstring, dbType);
+            }
+            return GetDbTableStructure(tableName);
+        }
+
         /// <summary>
         /// 处理外部数据库
         /// </summary>
diff --git a/OpenAuth.WebApi/Controllers/SysConfController.cs b/OpenAuth.WebApi/Controllers/SysConfController.cs
index 1e35cb67..f6daeb4c 100644
--- a/OpenAuth.WebApi/Controllers/SysConfController.cs
+++ b/OpenAuth.WebApi/Controllers/SysConfController.cs
@@ -1,8 +1,13 @@
-using Infrastructure;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Infrastructure;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Options;
 using OpenAuth.App;
+using OpenAuth.App.Response;
+using OpenAuth.Repository.QueryObj;
 
 namespace OpenAuth.WebApi.Controllers
 {
@@ -12,13 +17,15 @@ namespace OpenAuth.WebApi.Controllers
     [Route("api/[controller]/[action]")]
     [ApiController]
     [ApiExplorerSettings(GroupName = "系统配置_SysConf")]
-    public class SysConfController :ControllerBase
+    public class SysConfController : ControllerBase
     {
         private IOptions<AppSetting> _appConfiguration;
+        private DbExtension _dbExtension;
 
-        public SysConfController(IOptions<AppSetting> appConfiguration)
+        public SysConfController(IOptions<AppSetting> appConfiguration, DbExtension dbExtension)
         {
             _appConfiguration = appConfiguration;
+            _dbExtension = dbExtension;
         }
 
         /// <summary>
@@ -34,5 +41,53 @@ namespace OpenAuth.WebApi.Controllers
                 Result = _appConfiguration.Value.IsIdentityAuth
             };
         }
+
+        /// <summary>
+        /// 获取数据库表结构
+        /// </summary>
+        /// <param name="tableName">表名</param>
+        /// <param name="externalDataSourceId">外部数据源ID</param>
+        /// <returns></returns>
+        [HttpGet]
+        public Response<List<SysTableColumn>> GetDbTableStructure(string tableName, string externalDataSourceId)
+        {
+            var result = new Response<List<SysTableColumn>>();
+            try
+            {
+                result.Result = _dbExtension.GetDbTableStructure(tableName, externalDataSourceId).ToList();
+            }
+            catch (Exception ex)
+            {
+                result.Code = 500;
+                result.Message = ex.Message;
+            }
+            return result;
+        }
+
+        /// <summary>
+        /// 获取数据库表结构（用于下拉框）
+        /// </summary>
+        /// <param name="tableName">表名</param>
+        /// <param name="externalDataSourceId">外部数据源ID</param>
+        /// <returns></returns>
+        [HttpGet]
+        public TableData GetDbTableStructureForSelect(string tableName, string externalDataSourceId)
+        {
+            var result = new TableData();
+            try
+            {
+                result.data = _dbExtension.GetDbTableStructure(tableName, externalDataSourceId).Select(u => new
+                {
+                    Id = u.ColumnName,
+                    Name = u.ColumnName
+                });
+            }
+            catch (Exception ex)
+            {
+                result.code = 500;
+                result.msg = ex.Message;
+            }
+            return result;
+        }
     }
 }
diff --git a/newdocs/docs/notes/pro/devnew.md b/newdocs/docs/notes/pro/devnew.md
index f63780bc..6fb65f8d 100644
--- a/newdocs/docs/notes/pro/devnew.md
+++ b/newdocs/docs/notes/pro/devnew.md
@@ -129,7 +129,7 @@ create table stock
 
 选中刚刚添加的`Stock`表，依次点击【生成实体】【生成业务代码】【生成vue页面】;
 
-如果存在子表，也进行相同的操作。即选中刚刚添加的`StockDetail`表，依次点击【生成实体】【生成业务代码】，子表不需要生成vue页面;
+如果存在子表，也进行相同的操作。即选中刚刚添加的`StockDetail`表，依次点击【生成实体】【生成业务代码】【生成vue页面】，子表虽然不需要生成vue页面，但需要生成前端js api;
 
 成功后生成的后端.Net代码位置如下：
 
@@ -139,11 +139,13 @@ OpenAuth.App\StockApp\Request\AddOrUpdateStockReq.cs
 OpenAuth.App\StockApp\Request\QueryStockListReq.cs
 OpenAuth.WebApi\Controllers\StocksController.cs
 
-并且会在OpenAuth.Repository\OpenAuthDBContext.cs中自动添加：
-
+::: warning 注意
+以前代码生成器生成基于EF的代码时，会在OpenAuth.Repository\OpenAuthDBContext.cs中自动添加：
 ```
  public virtual DbSet<Stock> Stocks { get; set; }
 ```
+现在基于SqlSugar的代码生成器，已不需要。如果有其他开发方面需要，可自行手动添加。
+:::
 
 
 前端Vue代码：