代码修改后的版本，全部提交

Mtxfw.VipSite/artDialog/net/imageUp.ashx

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+<%@ WebHandler Language="C#" Class="Mtxfw.VipSite.imageUp" %>
+
+using System;
+using System.Web;
+using System.IO;
+using System.Collections;
+using System.Collections.Generic;
+using System.Web.SessionState;
+namespace Mtxfw.VipSite
+{
+    public class imageUp : IHttpHandler, IRequiresSessionState
+    {
+        public Mtxfw.Utility.Config config = new Mtxfw.Utility.Config("");
+        public void ProcessRequest(HttpContext context)
+        {
+            if (context.Session["MemberId"] != null && context.Session["MemberName"] != null)
+            {
+                context.Response.ContentEncoding = System.Text.Encoding.UTF8;
+                //上传配置
+                string pathbase = "/Files/Image/";                                                          //保存路径
+                int size = 10;                     //文件大小限制,单位mb                                                                                   //文件大小限制，单位KB
+                string[] filetype = config.webUpType.Split(',');                    //文件允许格式
+
+                string callback = context.Request["callback"];
+                string editorId = context.Request["editorid"];
+
+                //上传图片
+                Hashtable info;
+                Uploader up = new Uploader();
+                info = up.upFile(context, pathbase, filetype, size); //获取上传状态
+                string json = BuildJson(info);
+
+                context.Response.ContentType = "text/html";
+                if (callback != null)
+                {
+                    context.Response.Write(String.Format("<script>{0}(JSON.parse(\"{1}\"));</script>", callback, json));
+                }
+                else
+                {
+                    context.Response.Write(json);
+                }
+            }
+        }
+
+        public bool IsReusable
+        {
+            get
+            {
+                return false;
+            }
+        }
+
+        private string BuildJson(Hashtable info)
+        {
+            List<string> fields = new List<string>();
+            string[] keys = new string[] { "originalName", "name", "url", "size", "state", "type" };
+            for (int i = 0; i < keys.Length; i++)
+            {
+                fields.Add(String.Format("\"{0}\": \"{1}\"", keys[i], info[keys[i]]));
+            }
+            return "{" + String.Join(",", fields) + "}";
+        }
+
+    }
+}