Web/WebApp/LxFileBuffer.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using CityMgr;
using CityMgr.Base;
using CityMgr.Report;

namespace WebApp
{
    /// <summary>
    /// 文件缓存管理器
    /// </summary>
    public static class LxFileBuffer
    {
        /// <summary>
        /// 获取所有文件缓存信息
        /// </summary>
        /// <returns>文件缓存信息列表</returns>
        [AjaxPro.AjaxMethod(AjaxPro.HttpSessionStateRequirement.Read)]
        public static List<LxFileBufferInfo> GetFileBufferInfos()
        {
            object obj = HttpContext.Current.Session["FileBufferInfo"];
            if (obj == null)
                return null;
            return obj as List<LxFileBufferInfo>;
        }

        /// <summary>
        /// 设置文件缓存信息
        /// </summary>
        /// <param name="infos">文件缓存信息列表</param>
        private static void SetFileBufferInfos(List<LxFileBufferInfo> infos)
        {
            HttpContext.Current.Session["FileBufferInfo"] = infos;
        }

        /// <summary>
        /// 清除缓存
        /// </summary>
        [AjaxPro.AjaxMethod(AjaxPro.HttpSessionStateRequirement.ReadWrite)]
        public static void Clear()
        {
            List<LxFileBufferInfo> infos = GetFileBufferInfos();
            if (infos == null)
                return;
            foreach (var info in infos)
                HttpContext.Current.Session.Remove("FileBuffer_" + info.BufferName);
            HttpContext.Current.Session.Remove("FileBufferInfo");
        }

        /// <summary>
        /// 保存文件数据到缓存中
        /// </summary>
        /// <param name="name">缓存名称</param>
        /// <param name="fileName">文件名称</param>
        /// <param name="data">数据</param>
        public static void Save(string name, string fileName, byte[] data,Guid gCityRptItem,bool IsLocatePic,string PsCode,string strDescription,bool IsSaveRes)
        {
            if (!CityMgr.ValidateHelperr.CheckName(name))