505 lines
18 KiB
C#
505 lines
18 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Configuration;
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using System.Drawing;
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using System.IO;
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using System.Linq;
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using System.Net;
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using System.Web;
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namespace BLL
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{
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public static class AttachFileService
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{
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public static Model.SGGLDB db = Funs.DB;
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/// <summary>
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/// 添加附件存储信息
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/// </summary>
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/// <param name="workArea"></param>
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public static void AddAttachFile(Model.AttachFile attachFile)
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{
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string newKeyID = SQLHelper.GetNewID(typeof(Model.AttachFile));
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Model.AttachFile newAttachFile = new Model.AttachFile();
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newAttachFile.AttachFileId = newKeyID;
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newAttachFile.ToKeyId = attachFile.ToKeyId;
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newAttachFile.AttachSource = attachFile.AttachSource;
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newAttachFile.AttachUrl = attachFile.AttachUrl;
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newAttachFile.MenuId = attachFile.MenuId;
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db.AttachFile.InsertOnSubmit(newAttachFile);
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db.SubmitChanges();
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}
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/// <summary>
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/// 修改附件存储信息
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/// </summary>
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/// <param name="workArea"></param>
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public static void updateAttachFile(Model.AttachFile attachFile)
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{
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Model.AttachFile newAttachFile = db.AttachFile.FirstOrDefault(x => x.AttachFileId == attachFile.AttachFileId);
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newAttachFile.ToKeyId = attachFile.ToKeyId;
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newAttachFile.AttachSource = attachFile.AttachSource;
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newAttachFile.AttachUrl = attachFile.AttachUrl;
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newAttachFile.MenuId = attachFile.MenuId;
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db.SubmitChanges();
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}
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/// <summary>
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/// 根据对应Id删除附件信息及文件存放的物理位置
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/// </summary>
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/// <param name="workAreaId"></param>
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public static void DeleteAttachFile(string rootPath, string toKeyId, string menuId)
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{
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Model.AttachFile att = db.AttachFile.FirstOrDefault(e => e.ToKeyId == toKeyId && e.MenuId == menuId);
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if (att != null)
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{
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BLL.UploadFileService.DeleteFile(rootPath, att.AttachUrl);
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db.AttachFile.DeleteOnSubmit(att);
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db.SubmitChanges();
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}
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}
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/// <summary>
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/// 根据对应主键和菜单获取文件信息
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/// </summary>
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/// <param name="toKey">对应主键</param>
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/// <param name="menuId">对应菜单</param>
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/// <returns>文件信息</returns>
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public static Model.AttachFile GetAttachFile(string toKey, string menuId)
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{
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return Funs.DB.AttachFile.FirstOrDefault(e => e.ToKeyId == toKey && e.MenuId == menuId);
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}
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/// <summary>
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/// 根据对应主键获取文件信息
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/// </summary>
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/// <param name="toKey">对应主键</param>
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/// <returns>文件信息</returns>
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public static string GetBtnFileUrl(object toKey)
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{
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string fileUrl = string.Empty;
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if (toKey != null)
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{
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Model.AttachFile file = Funs.DB.AttachFile.FirstOrDefault(e => e.ToKeyId == toKey.ToString());
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if (file != null && !string.IsNullOrEmpty(file.AttachUrl))
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{
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string url = file.AttachUrl.Replace('\\', '/');
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fileUrl = BLL.UploadAttachmentService.ShowAttachment2("../../", url);
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}
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}
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return fileUrl;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="toKeyId"></param>
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/// <returns></returns>
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public static string getFileUrl(string toKeyId)
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{
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try
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{
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using (var db = new Model.SGGLDB(Funs.ConnString))
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{
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string res = "";
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var list = db.AttachFile.Where(p => p.ToKeyId == toKeyId).ToList();
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if (list != null && list.Count > 0)
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{
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foreach (var item in list)
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{
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if (!string.IsNullOrEmpty(item.AttachUrl))
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res += item.AttachUrl.ToLower().TrimEnd(',') + ",";
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}
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res = res.Substring(0, res.Length - 1);
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}
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return res.Replace('\\', '/');
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}
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}
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catch (Exception e)
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{
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return "";
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}
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="toKeyId"></param>
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/// <param name="menuId"></param>
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/// <returns></returns>
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public static Boolean Getfile(string toKeyId, string menuId)
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{
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bool res = false;
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var q = Funs.DB.AttachFile.FirstOrDefault((x => x.ToKeyId == toKeyId && x.MenuId == menuId));
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if (q != null)
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{
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var file = q.AttachUrl;
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if (!string.IsNullOrEmpty(file))
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{
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res = true;
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}
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}
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return res;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="toKeyId"></param>
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/// <param name="menuId"></param>
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/// <returns></returns>
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public static IList<Model.AttachFile> Getfilelist(string toKeyId, string menuId)
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{
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List<string> listToKeyId = new List<string>();
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listToKeyId.Add(toKeyId);
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listToKeyId.Add(toKeyId + "r");
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listToKeyId.Add(toKeyId + "re");
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var list = Funs.DB.AttachFile.Where(p => listToKeyId.Contains(p.ToKeyId) && p.MenuId == menuId).ToList();
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return list;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="url"></param>
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/// <param name="toKeyId"></param>
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/// <param name="menuId"></param>
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/// <returns></returns>
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public static bool updateAttachFile(string url, string toKeyId, string menuId)
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{
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if (!string.IsNullOrEmpty(url))
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{
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string fileDir = "WebApi";
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switch (menuId)
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{
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case Const.CheckEquipmentMenuId:
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fileDir = "CheckEquipment";
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break;
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case Const.CheckListMenuId:
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fileDir = "CheckControl";
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break;
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case Const.JointCheckMenuId:
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fileDir = "JointCheck";
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break;
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case Const.TechnicalContactListMenuId:
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fileDir = "TechnicalContactList";
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break;
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case Const.WorkContactMenuId:
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fileDir = "WorkContact";
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break;
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case Const.DesignMenuId:
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fileDir = "Design";
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break;
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case Const.CQMSConstructSolutionMenuId:
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fileDir = "Solution";
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break;
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}
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using (var db = new Model.SGGLDB(Funs.ConnString))
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{
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var query = from f in db.AttachFile
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where f.ToKeyId == toKeyId
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select f;
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Model.AttachFile temp = query.FirstOrDefault();
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if (temp == null)
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{
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temp = new Model.AttachFile();
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temp.AttachFileId = BLL.SQLHelper.GetNewID(typeof(Model.AttachFile));
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temp.ToKeyId = toKeyId;
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temp.AttachUrl = reNameUrl(url, fileDir);
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temp.AttachSource = getAttachSource(url, fileDir);
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temp.MenuId = menuId;
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db.AttachFile.InsertOnSubmit(temp);
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db.SubmitChanges();
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}
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else
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{
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temp.AttachUrl = reNameUrl(url, fileDir);
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temp.AttachSource = getAttachSource(url, fileDir);
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db.SubmitChanges();
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}
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return true;
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}
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}
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else
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{
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using (var db = new Model.SGGLDB(Funs.ConnString))
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{
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var query = from f in db.AttachFile
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where f.ToKeyId == toKeyId
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select f;
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Model.AttachFile temp = query.FirstOrDefault();
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if (temp != null)
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{
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db.AttachFile.DeleteOnSubmit(temp);
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db.SubmitChanges();
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}
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return true;
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}
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}
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return false;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="url"></param>
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/// <param name="fileDir"></param>
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/// <returns></returns>
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public static string reNameUrl(string url, string fileDir)
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{
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string[] urls = url.Split(',');
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string res = "";
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foreach (var item in urls)
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{
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string size = "0";
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int strInt = item.LastIndexOf("~");
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if (strInt < 0)
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{
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strInt = item.LastIndexOf("\\");
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}
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if (strInt < 0)
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{
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strInt = item.LastIndexOf("/");
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}
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res += "FileUpLoad/" + fileDir + "/" + item.Substring(strInt + 1) + ",";
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}
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if (!string.IsNullOrEmpty(res))
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return res.Substring(0, res.Length - 1);
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return res;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="url"></param>
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/// <param name="fileDir"></param>
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/// <returns></returns>
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public static string getAttachSource(string url, string fileDir)
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{
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string res = "";
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string attachSource = string.Empty;
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if (!string.IsNullOrEmpty(url))
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{
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string[] urls = url.Split(',');
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foreach (var item in urls)
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{
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string size = "0";
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int strInt = item.LastIndexOf("~");
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if (strInt < 0)
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{
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strInt = item.LastIndexOf("\\");
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}
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if (strInt < 0)
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{
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strInt = item.LastIndexOf("/");
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}
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string filepath = ConfigurationManager.AppSettings["localRoot"] + "/FileUpLoad/" + fileDir + "/" + item.Substring(strInt + 1);
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strInt = filepath.LastIndexOf("~");
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if (strInt < 0)
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{
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strInt = filepath.LastIndexOf("\\");
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}
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if (strInt < 0)
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{
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strInt = filepath.LastIndexOf("/");
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}
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if (File.Exists(ConfigurationManager.AppSettings["localRoot"] + "/" + item))
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{
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if (!Directory.Exists(filepath.Substring(0, strInt)))
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{
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Directory.CreateDirectory(filepath.Substring(0, strInt));
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}
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if (!File.Exists(filepath))
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{
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File.Copy(ConfigurationManager.AppSettings["localRoot"] + "/" + item, filepath);
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}
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FileInfo fileInfo = new System.IO.FileInfo(filepath);
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size = System.Math.Ceiling(fileInfo.Length / 1024.0) + "";
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}
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string name = filepath.Substring(strInt + 1);
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string type = filepath.Substring(filepath.LastIndexOf(".") + 1);
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string id = SQLHelper.GetNewID(typeof(Model.AttachFile));
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attachSource += "{ \"name\": \"" + name + "\", \"type\": \"" + type + "\", \"savedName\": \"" + name
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+ "\", \"size\": " + size + ", \"id\": \"" + SQLHelper.GetNewID(typeof(Model.AttachFile)) + "\" },";
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}
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}
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if (!string.IsNullOrEmpty(attachSource))
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{
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attachSource = attachSource.Substring(0, attachSource.Length - 1);
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}
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return "[" + attachSource + "]";
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}
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/// <summary>
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/// 根据id获取url地址
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/// </summary>
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/// <param name="toKeyId"></param>
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/// <returns></returns>
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public static string GetfileUrl(string toKeyId)
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{
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try
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{
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string file = string.Empty;
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var result = Funs.DB.AttachFile.FirstOrDefault((x => x.ToKeyId == toKeyId && x.MenuId == Const.UserMenuId));
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if (result != null && !string.IsNullOrEmpty(result.AttachUrl))
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{
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file = result.AttachUrl.ToLower();
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file = file.Replace('\\', '/').TrimEnd(',');
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}
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return file;
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}
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catch (Exception e)
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{
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return "";
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}
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="toKeyId"></param>
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/// <param name="menuId"></param>
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/// <returns></returns>
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public static Model.AttachFile Getfiles(string toKeyId, string menuId)
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{
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var list = Funs.DB.AttachFile.FirstOrDefault((x => x.ToKeyId == toKeyId && x.MenuId == menuId));
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return list;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="toKeyId"></param>
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/// <param name="menuId"></param>
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/// <returns></returns>
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public static IList<Model.AttachFile> GetfileDetaillist(List<string> toKeyId, string menuId)
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{
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if (toKeyId.Count > 0)
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{
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var list = Funs.DB.AttachFile.Where(p => toKeyId.Contains(p.ToKeyId) && p.MenuId == menuId).ToList();
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return list;
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}
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else
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{
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return null;
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}
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}
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#region 根据图片路径转换为base64
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/// <summary>
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/// 根据图片路径转换为base64
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/// </summary>
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/// <param name="imageUrl"></param>
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/// <returns></returns>
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public static byte[] SetImageToByteArray(string imageUrl)
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{
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try
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{
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FileStream fs = new FileStream(imageUrl, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
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int streamLength = (int)fs.Length;
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byte[] image = new byte[streamLength];
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fs.Read(image, 0, streamLength);
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fs.Close();
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return image;
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}
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catch
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{
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return null;
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}
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}
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#endregion
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/// <summary>
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///
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/// </summary>
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/// <param name="base64Str"></param>
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/// <param name="path"></param>
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/// <param name="imgName"></param>
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/// <returns></returns>
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public static string Base64ToImage(string base64Str, string path, string imgName)
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{
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string filename = "";//声明一个string类型的相对路径
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String base64 = base64Str.Substring(base64Str.IndexOf(",") + 1); //将‘，’以前的多余字符串删除
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System.Drawing.Bitmap bitmap = null;//定义一个Bitmap对象，接收转换完成的图片
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try//会有异常抛出，try，catch一下
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{
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byte[] arr = Convert.FromBase64String(base64);//将纯净资源Base64转换成等效的8位无符号整形数组
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System.IO.MemoryStream ms = new System.IO.MemoryStream(arr);//转换成无法调整大小的MemoryStream对象
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bitmap = new System.Drawing.Bitmap(ms);//将MemoryStream对象转换成Bitmap对象
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filename = path + imgName + ".jpg";//所要保存的相对路径及名字
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string url = ConfigurationManager.AppSettings["localRoot"];
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string tmpRootDir = System.Web.HttpContext.Current.Server.MapPath(System.Web.HttpContext.Current.Request.ApplicationPath.ToString()); //获取程序根目录
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string imagesurl2 = tmpRootDir + filename; //转换成绝对路径
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bitmap.Save(imagesurl2, System.Drawing.Imaging.ImageFormat.Jpeg);//保存到服务器路径
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//bitmap.Save(filePath + ".bmp", System.Drawing.Imaging.ImageFormat.Bmp);
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//bitmap.Save(filePath + ".gif", System.Drawing.Imaging.ImageFormat.Gif);
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//bitmap.Save(filePath + ".png", System.Drawing.Imaging.ImageFormat.Png);
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ms.Close();//关闭当前流，并释放所有与之关联的资源
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bitmap.Dispose();
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}
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catch (Exception e)
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{
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string massage = e.Message;
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}
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return filename;//返回相对路径
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="toKeyId"></param>
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/// <param name="menuId"></param>
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/// <returns></returns>
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public static IList<Model.AttachFile> GetBeforeFileList(string toKeyId, string menuId)
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{
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List<string> listToKeyId = new List<string>();
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listToKeyId.Add(toKeyId);
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// listToKeyId.Add(toKeyId + "r");
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//listToKeyId.Add(toKeyId + "re");
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var list = Funs.DB.AttachFile.Where(p => listToKeyId.Contains(p.ToKeyId) && p.MenuId == menuId).ToList();
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return list;
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}
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/// <summary>
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/// 判断文件类型是否支持的预览
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/// </summary>
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/// <param name="FiletExtension"></param>
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/// <returns></returns>
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public static bool IsSupportFileType(string FiletExtension)
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{
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bool result = false;
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List<String> list = new List<string>();
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list.Add(".doc");
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list.Add(".docx");
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list.Add(".pdf");
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list.Add(".txt");
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list.Add(".xlsx");
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list.Add(".xls");
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foreach (var item in list)
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{
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if (item == FiletExtension)
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{
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result = true;
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break;
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}
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}
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return result;
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}
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}
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}
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