Project_Net4/010_浙江高速/002_高速驿站-分支/HighWay.WebSite/API/upload/upimg.ashx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

using System.Collections;
using System.Text;
using SuperMap.RealEstate.HousingSecurity.APIPlugs;
using SuperMap.RealEstate.HousingSecurity.APIPlugs.flashuploader;
using System.Web.Script.Serialization;

namespace SuperMap.RealEstate.HousingSecurity.API.upload
{
    /// <summary>
    /// upimg 的摘要说明
    /// 【提供给文章编辑的ueditor编辑器上传图片】
    /// </summary>
    public class upimg : IHttpHandler
    {
        private static int _USER_ID = 1;//MOCK
        private static string _USER_NAME = "admin";

        private const string SUCCESS = "SUCCESS";
        private const string ERROR = "ERROR";


        private HttpContext context;
        public void ProcessRequest(HttpContext context)
        {
            this.context = context;

            //context.Response.ContentType = "text/plain";
            //context.Response.Write("Hello World");
            FlashUpJsonInfo _json = UpHousePhotos(0);

            //直接输出json
            //context.Response.ContentType = "application/json";
            //context.Response.Write("{");
            //context.Response.Write("'state':'" + _json.state + "'");
            //context.Response.Write(",'msg':'" + _json.msg + "'");
            //context.Response.Write(",'title':'" + _json.title + "'");
            //context.Response.Write(",'url':'" + _json.url + "'");
            //context.Response.Write(",'original':'" + _json.original + "'");
            //context.Response.Write(",'fid':" + _json.fid);
            //context.Response.Write("}");

            context.Response.ContentType = "application/json";
            Hashtable ht = new Hashtable();
            ht.Add("state", _json.state);
            ht.Add("msg", _json.msg);
            ht.Add("title", _json.title);
            ht.Add("url", _json.url);
            ht.Add("original", _json.original);
            ht.Add("fid", _json.fid);

            StringBuilder buider = new StringBuilder();
            JavaScriptSerializer json = new JavaScriptSerializer(new SimpleTypeResolver());
            json.MaxJsonLength = Int32.MaxValue;
            json.Serialize(ht, buider);
            context.Response.Write(buider.ToString());
        }


        #region [图片上传] -> UpHousePhotos <- 上传房源相关图片
        public FlashUpJsonInfo UpHousePhotos(int houseid)
        {
            FlashUpJsonInfo _json = new FlashUpJsonInfo();

            MyUpFileInfo myupfileinfo = null;
            if (doupload(_json, out myupfileinfo))
            {
                //同时添加到房源图片目录
                //try
                //{
                //    //using (Ctrl_photos _ctrl = new Ctrl_photos())
                //    //{
                //    //    _ctrl.FieldValues.Add("fk_type", Ctrl_photos.FK_TYPE_HOUSE);
                //    //    _ctrl.FieldValues.Add("fk_id", houseid);//关联houseid

                //    //    _ctrl.FieldValues.Add("fid", myupfileinfo.Entity.fid);
                //    //    _ctrl.FieldValues.Add("imgurl", myupfileinfo.GetUri());
                //    //    _ctrl.FieldValues.Add("imgtitle", myupfileinfo.Entity.memo);

                //    //    _ctrl.FieldValues.Add("add_userid", LoginHelper.Sess_UserId);
                //    //    _ctrl.FieldValues.Add("add_usernick", LoginHelper.Sess_UserNick);
                //    //    _ctrl.FieldValues.Add("add_ip", LoginHelper.Sess_UserId);
                //    //    _ctrl.FieldValues.Add("addtime", DateTime.Now);
                //    //    _ctrl.FieldValues.Add("edittime", DateTime.Now);

                //    //    _ctrl.Insert();
                //    //}
                //}
                //catch (Exception ex)
                //{
                //    _json.state = ERROR;
                //    _json.msg = "upload file success,but save photos is error:" + ex.Message;
                //}
            }
            return _json;
        }
        #endregion

        private bool doupload(FlashUpJsonInfo _json, out MyUpFileInfo _upfileinfo)
        {
            bool _isok = false;
            _upfileinfo = null;


            HttpRequestBase request = new HttpRequestWrapper(this.context.Request);

            //Hashtable _ht = new Hashtable();
            if (request.Files != null && request.Files.Count > 0)
            {
                //处理出需要上传的文件对象（单文件处理）
                _upfileinfo = new MyUpFileInfo(request.Files[0], _USER_ID, true);// 设定为新闻图片目录：isnews=true

                //[处理返回的参数]
                _upfileinfo.Entity.memo = GetFileFieldVal(context, "pictitle");//ueditor专用字段,用于标识title,并且记录到数据库
                string _msg = string.Empty;
                if (UpFlashHelper.TrySaveUpFile(_upfileinfo.HttpPostedFileBase, _USER_ID, _USER_NAME, ref _upfileinfo, out _msg))
                {
                    _isok = true;//标记成功
                    _json.state = SUCCESS;
                    _json.msg = _msg;

                    _json.url = _upfileinfo.GetUri();
                    //_json.sUrl = _upfileinfo.GetUri();
                    _json.title = _upfileinfo.Entity.memo;
                    _json.original = _upfileinfo.Entity.filename;
                    _json.fid = _upfileinfo.Entity.fid;

                    //if (currentType != null)
                    //    infoList.Add("currentType", currentType);
                    //if (originalName != null)
                    //    infoList.Add("originalName", originalName);

                }
                else
                {
                    _json.state = ERROR;
                    _json.msg = _msg;
                    //Zoyoa.Core.Utility.SecurityHelper.HtmlEncode(_msg)
                    //显示信息需要编码，防止JSON解析错误无法显示信息
                }
            }
            else
            {
                _json.state = ERROR;
                _json.msg = "Request.Files is null";
            }

            return _isok;
        }
        private static string GetFileFieldVal(HttpContext cxt, string field)
        {
            string info = null;
            if (cxt.Request.Form[field] != null && !String.IsNullOrEmpty(cxt.Request.Form[field]))
            {
                info = cxt.Request.Form[field].Trim();
            }
            return info;
        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}