diff --git a/Falcon.SugarApi/DatabaseManager/DbContextBase.cs b/Falcon.SugarApi/DatabaseManager/DbContextBase.cs
index 6a94a61..10c810c 100644
--- a/Falcon.SugarApi/DatabaseManager/DbContextBase.cs
+++ b/Falcon.SugarApi/DatabaseManager/DbContextBase.cs
@@ -2,6 +2,7 @@
 using Microsoft.Extensions.Logging;
 using SqlSugar;
 using System;
+using System.Linq;
 
 namespace Falcon.SugarApi.DatabaseManager
 {
@@ -24,6 +25,17 @@ namespace Falcon.SugarApi.DatabaseManager
             this.Logger = service.GetService(typeof(ILogger<>).MakeGenericType(GetType())) as ILogger;
             ConfigureExternalServices(this.CurrentConnectionConfig);
         }
+        /// <summary>
+        /// 使用服务提供程序和配置集合初始化数据库上下文
+        /// </summary>
+        /// <param name="service">服务提供程序</param>
+        /// <param name="configs">数据库上下文配置集合</param>
+        public DbContextBase(IServiceProvider service,params ConnectionConfig[] configs) : base(configs.ToList()) {
+            this.Logger = service.GetService(typeof(ILogger<>).MakeGenericType(GetType())) as ILogger;
+            foreach(var c in configs) {
+                ConfigureExternalServices(this.GetConnection(c.ConfigId).CurrentConnectionConfig);
+            }
+        }
 
         private static void ConfigureExternalServices(ConnectionConfig config) {
             config.ConfigureExternalServices ??= new ConfigureExternalServices();