Discuz.Album/App_Code/Albums.cs

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using System;
using System.Data;
using System.Collections.Generic;
using System.Text;

using Discuz.Common.Generic;
using Discuz.Entity;
using Discuz.Common;
using Discuz.Config;
using System.IO;
using Discuz.Forum;
using System.Drawing;
using Discuz.Album.Data;
using Discuz.Cache;

namespace Discuz.Album
{
    public class Albums
    {

        #region AlbumJson
        /// <summary>
        /// 获得相册的JSON格式数据
        /// </summary>
        /// <param name="albumid">相册ID</param>
        /// <returns></returns>
        public static string GetAlbumJsonData(int albumid)
        {
            DataTable dtAlbum = Data.DbProvider.GetInstance().GetPhotosByAlbumid(albumid);
            StringBuilder builder = new StringBuilder();
            builder.Append("{\"items\":[");
            foreach (DataRow dr in dtAlbum.Rows)
            {
                if (dr["filename"].ToString().Trim().ToLower().IndexOf("http") == 0)
                {
                    builder.AppendFormat(@"{{""photoid"":{0},""userid"":{1},""title"":""{2}"",""image"":""{3}"",""square"":""{4}"",""thumbnail"":""{5}""}},", dr["photoid"], dr["userid"], dr["title"].ToString().Trim().Replace("\"", "\\\""), dr["filename"].ToString().Trim(), Globals.GetSquareImage(dr["filename"].ToString().Trim()), Globals.GetThumbnailImage(dr["filename"].ToString().Trim()));
                }
                else
                {
                    builder.AppendFormat(@"{{""photoid"":{0},""userid"":{1},""title"":""{2}"",""image"":""{3}"",""square"":""{4}"",""thumbnail"":""{5}""}},", dr["photoid"], dr["userid"], dr["title"].ToString().Trim().Replace("\"", "\\\""), BaseConfigs.GetForumPath + dr["filename"].ToString().Trim(), Globals.GetSquareImage(BaseConfigs.GetForumPath + dr["filename"].ToString().Trim()), Globals.GetThumbnailImage(BaseConfigs.GetForumPath + dr["filename"].ToString().Trim()));
                }
            }
            builder.Remove(builder.Length - 1, 1);
            builder.Append("]}");
            return builder.ToString();
        }

        /// <summary>
        /// 生成json文件
        /// </summary>
        /// <param name="albumid">相册ID</param>
        /// <returns>json数据是否生成</returns>
        public static bool CreateAlbumJsonData(int albumid)
        {
            string json = GetAlbumJsonData(albumid);
            string cachedir = ForumUtils.GetCacheDir("album/") + (albumid / 1000 + 1).ToString() + "/";
            if (!Directory.Exists(Utils.GetMapPath(cachedir)))
                Utils.CreateDir(Utils.GetMapPath(cachedir));

            string filename = Utils.GetMapPath(cachedir + albumid.ToString() + "_json.txt");