增加异常定义和描述

Falcon.SugarApi/Plugin/Service/IServiceCollectionExtend.cs

@@ -2,7 +2,6 @@
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using System;
-using System.Collections.Generic;
 using System.IO;
 using System.Reflection;
 
@@ -25,6 +24,7 @@ namespace Falcon.SugarApi.Plugin.Service
         /// <param name="services">服务集合</param>
         /// <param name="config">应用程序配置</param>
         /// <param name="pluginNames">插件名称数组</param>
+        /// <exception cref="FileNotFoundException"></exception>
         /// <returns>服务集合</returns>
         public static IServiceCollection AddPluginService(this IServiceCollection services,IConfiguration config,params string[] pluginNames) {
             var name = typeof(IServicePlugin).FullName;
@@ -63,6 +63,7 @@ namespace Falcon.SugarApi.Plugin.Service
         /// <param name="services">服务集合</param>
         /// <param name="config">应用程序配置</param>
         /// <param name="plugins">插件程序集数组</param>
+        /// <exception cref="PluginExecAddServicesException"></exception>
         /// <returns>服务集合</returns>
         public static IServiceCollection AddPluginService(this IServiceCollection services,IConfiguration config,params Assembly[] plugins) {
             var name = typeof(IServicePlugin).FullName;
@@ -86,7 +87,7 @@ namespace Falcon.SugarApi.Plugin.Service
                         obj.AddServices(services,config);
                     }
                     catch(Exception ex) {
-                        throw new Exception($"调用插件{type.FullName}.IServicePlugin.AddServices]方法时发生异常。",ex);
+                        throw new PluginExecAddServicesException(type,ex);
                     }
                 }
             }

Falcon.SugarApi/Plugin/Service/PluginExecAddServicesException.cs

@@ -0,0 +1,19 @@
+using System;
+
+namespace Falcon.SugarApi.Plugin.Service
+{
+    /// <summary>
+    /// 插件执行AddServices方法时发生错误
+    /// </summary>
+    public class PluginExecAddServicesException:Exception
+    {
+        /// <summary>
+        /// 通过插件类型和异常类型引发异常
+        /// </summary>
+        /// <param name="type">插件注册类型</param>
+        /// <param name="innExecption">已发的异常</param>
+        public PluginExecAddServicesException(Type type,Exception innExecption)
+            : base($"调用插件{type.FullName}.IServicePlugin.AddServices]方法时发生异常。",innExecption) {
+        }
+    }
+}