572 lines
23 KiB
C#
572 lines
23 KiB
C#
using System;
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using System.IO;
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using System.Linq;
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using System.Web.UI.WebControls;
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namespace BLL
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{
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/// <summary>
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/// 上传附件相关
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/// </summary>
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public class UploadAttachmentService
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{
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#region 附件显示不带删除
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/// <summary>
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/// 附件显示
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/// </summary>
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public static string ShowAttachment(string rootPath, string path)
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{
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string htmlStr = string.Empty;
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if (!string.IsNullOrEmpty(path))
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{
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htmlStr = "<table runat='server' cellpadding='5' cellspacing='5' style=\"width: 100%\">";
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string[] arrStr = path.Split(new string[] { "," }, System.StringSplitOptions.RemoveEmptyEntries);
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for (int i = 0; i < arrStr.Length; i++)
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{
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if (!string.IsNullOrEmpty(arrStr[i]))
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{
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string[] urlArray = arrStr[i].Split('\\');
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string scanUrl = string.Empty;
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for (int j = 0; j < urlArray.Length; j++)
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{
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scanUrl += urlArray[j] + "|";
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}
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string url = rootPath + arrStr[i].Replace('\\', '/');
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string[] subUrl = url.Split('/');
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string fileName = subUrl[subUrl.Count() - 1];
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string newFileName = fileName.Substring(fileName.IndexOf("~") + 1);
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htmlStr += "<tr><td style=\"width: 60%\" align=\"left\"><span style='cursor:pointer;cursor:pointer;cursor:pointer;TEXT-DECORATION: underline;color:blue' onclick=\"window.open('" + url + "')\">" + newFileName + "</span></td>";
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}
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}
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htmlStr += "</table>";
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}
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return htmlStr;
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}
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#endregion
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#region 附件显示不带删除
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/// <summary>
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/// 附件显示
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/// </summary>
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public static string ShowAttachment2(string rootPath, string path)
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{
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string htmlStr = string.Empty;
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if (!string.IsNullOrEmpty(path))
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{
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htmlStr = "<table runat='server' cellpadding='5' cellspacing='5' style=\"width: 100%\">";
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string[] arrStr = path.Split(new string[] { "," }, System.StringSplitOptions.RemoveEmptyEntries);
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for (int i = 0; i < arrStr.Length; i++)
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{
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if (!string.IsNullOrEmpty(arrStr[i]))
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{
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string[] urlArray = arrStr[i].Split('\\');
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string scanUrl = string.Empty;
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for (int j = 0; j < urlArray.Length; j++)
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{
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scanUrl += urlArray[j] + "|";
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}
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string url = rootPath + arrStr[i].Replace('\\', '/');
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string[] subUrl = url.Split('/');
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string fileName = subUrl[subUrl.Count() - 1];
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string newFileName = fileName.Substring(fileName.IndexOf("_") + 1);
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htmlStr += "<tr><td style=\"width: 60%\" align=\"left\"><span style='cursor:pointer;cursor:pointer;cursor:pointer;TEXT-DECORATION: underline;color:blue' onclick=\"window.open('" + url + "')\">" + newFileName + "</span></td>";
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}
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}
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htmlStr += "</table>";
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}
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return htmlStr;
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}
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#endregion
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#region 附件显示带删除 页面单个附件
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/// <summary>
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/// 附件显示
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/// </summary>
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public static string ShowAndDeleteAttachment(string rootPath, string path)
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{
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string htmlStr = string.Empty;
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if (!string.IsNullOrEmpty(path))
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{
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htmlStr = "<table runat='server' cellpadding='5' cellspacing='5' style=\"width: 100%\">";
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string[] arrStr = path.Split(new string[] { "," }, System.StringSplitOptions.RemoveEmptyEntries);
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for (int i = 0; i < arrStr.Length; i++)
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{
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if (!string.IsNullOrEmpty(arrStr[i]))
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{
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string[] urlArray = arrStr[i].Split('\\');
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string scanUrl = string.Empty;
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for (int j = 0; j < urlArray.Length; j++)
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{
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scanUrl += urlArray[j] + "|";
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}
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string url = rootPath + arrStr[i].Replace('\\', '/');
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string[] subUrl = url.Split('/');
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string fileName = subUrl[subUrl.Count() - 1];
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string newFileName = fileName.Substring(fileName.IndexOf("~") + 1);
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htmlStr += "<tr><td style=\"width: 60%\" align=\"left\"><span style='cursor:pointer;cursor:pointer;cursor:pointer;TEXT-DECORATION: underline;color:blue' onclick=\"window.open('" + url + "')\">" + newFileName + "</span></td>";
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htmlStr += "<td style=\"width: 40%\" align=\"left\"><a style='cursor:pointer;cursor:pointer;cursor:pointer;TEXT-DECORATION: underline;color:blue' onclick='DelAttachment(" + "\"" + scanUrl + "\"" + ")' >删除</a></td></tr>";
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}
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}
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htmlStr += "</table>";
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}
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return htmlStr;
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}
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#endregion
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#region 附件显示带删除 页面存在多个附件
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/// <summary>
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/// 附件显示
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/// </summary>
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public static string ShowAndDeleteNameAttachment(string rootPath, string path, string delName)
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{
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string htmlStr = string.Empty;
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if (!string.IsNullOrEmpty(path))
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{
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htmlStr = "<table runat='server' cellpadding='5' cellspacing='5' style=\"width: 100%\">";
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string[] arrStr = path.Split(new string[] { "," }, System.StringSplitOptions.RemoveEmptyEntries);
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for (int i = 0; i < arrStr.Length; i++)
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{
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if (!string.IsNullOrEmpty(arrStr[i]))
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{
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string[] urlArray = arrStr[i].Split('\\');
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string scanUrl = string.Empty;
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for (int j = 0; j < urlArray.Length; j++)
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{
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scanUrl += urlArray[j] + "|";
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}
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string url = rootPath + arrStr[i].Replace('\\', '/');
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string[] subUrl = url.Split('/');
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string fileName = subUrl[subUrl.Count() - 1];
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string newFileName = fileName.Substring(fileName.IndexOf("~") + 1);
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htmlStr += "<tr><td style=\"width: 60%\" align=\"left\"><span style='cursor:pointer;cursor:pointer;cursor:pointer;TEXT-DECORATION: underline;color:blue' onclick=\"window.open('" + url + "')\">" + newFileName + "</span></td>";
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htmlStr += "<td style=\"width: 40%\" align=\"left\"><a style='cursor:pointer;cursor:pointer;cursor:pointer;TEXT-DECORATION: underline;color:blue' onclick='" + delName + "(" + "\"" + scanUrl + "\"" + ")' >删除</a></td></tr>";
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}
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}
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htmlStr += "</table>";
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}
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return htmlStr;
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}
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#endregion
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#region 附件在Image中显示
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/// <summary>
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/// 附件在Image中显示
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/// </summary>
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/// <param name="rootValue">文件夹路径</param>
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/// <param name="path">附件路径</param>
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/// <returns>附件显示HTML</returns>
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public static string ShowImage(string rootValue, string path)
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{
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string htmlStr = string.Empty;
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if (!string.IsNullOrEmpty(path))
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{
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htmlStr = "<div id=\"img\" runat='server' style=\"width: 100%;height:100%;display: flex;flex-direction: row;justify-content: flex-start;align-items: flex-start;flex-wrap: wrap;\">";
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string[] arrStr = path.Split(new string[] { "," }, System.StringSplitOptions.RemoveEmptyEntries);
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for (int i = 0; i < arrStr.Length; i++)
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{
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if (!string.IsNullOrEmpty(arrStr[i]))
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{
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string[] urlArray = arrStr[i].Split('\\');
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string scanUrl = string.Empty;
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for (int j = 0; j < urlArray.Length; j++)
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{
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scanUrl += urlArray[j] + "|";
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}
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string url = rootValue + arrStr[i].Replace('\\', '/');
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string[] subUrl = url.Split('/');
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string fileName = subUrl[subUrl.Count() - 1];
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string newFileName = fileName.Substring(fileName.IndexOf("~") + 1);
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htmlStr += "<img width='60' height='60' style=\"margin-right:6px;margin-bottom:6px;\" src='" + url + "'></img>";
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}
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}
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htmlStr += "</div>";
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}
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return htmlStr;
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}
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#endregion
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#region 附件上传
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/// <summary>
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/// 附件上传
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/// </summary>
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/// <param name="fileUpload">上传控件</param>
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/// <param name="fileUrl">上传路径</param>
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/// <param name="constUrl">定义路径</param>
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/// <returns></returns>
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public static string UploadAttachment(string rootPath, FileUpload fileUpload, string fileUrl, string constUrl)
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{
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string initFullPath = rootPath + constUrl;
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if (!Directory.Exists(initFullPath))
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{
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Directory.CreateDirectory(initFullPath);
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}
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string filePath = fileUpload.PostedFile.FileName;
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string fileName = Funs.GetNewFileName() + "~" + Path.GetFileName(filePath);
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int count = fileUpload.PostedFile.ContentLength;
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string savePath = constUrl + fileName;
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string fullPath = initFullPath + fileName;
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if (!File.Exists(fullPath))
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{
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byte[] buffer = new byte[count];
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Stream stream = fileUpload.PostedFile.InputStream;
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stream.Read(buffer, 0, count);
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MemoryStream memoryStream = new MemoryStream(buffer);
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FileStream fs = new FileStream(fullPath, FileMode.Create, FileAccess.Write);
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memoryStream.WriteTo(fs);
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memoryStream.Flush();
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memoryStream.Close();
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fs.Flush();
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fs.Close();
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memoryStream = null;
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fs = null;
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if (!string.IsNullOrEmpty(fileUrl))
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{
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fileUrl += "," + savePath;
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}
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else
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{
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fileUrl += savePath;
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}
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}
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else
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{
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fileUrl = string.Empty;
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}
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return fileUrl;
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}
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#endregion
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#region 附件上传 同时上传到服务器端
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/// <summary>
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/// 附件上传 同时上传到服务器端
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/// </summary>
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/// <param name="fileUpload">上传控件</param>
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/// <param name="fileUrl">上传路径</param>
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/// <param name="constUrl">定义路径</param>
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/// <param name="serverUrl">服务端地址</param>
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/// <returns></returns>
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public static string UploadAttachmentAndServer(string rootPath, FileUpload fileUpload, string fileUrl, string constUrl, string serverUrl)
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{
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string initFullPath = rootPath + constUrl;
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if (!Directory.Exists(initFullPath))
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{
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Directory.CreateDirectory(initFullPath);
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}
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string initFullPathServer = serverUrl + constUrl;
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if (!Directory.Exists(initFullPathServer))
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{
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Directory.CreateDirectory(initFullPathServer);
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}
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string filePath = fileUpload.PostedFile.FileName;
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string fileName = Funs.GetNewFileName() + "~" + Path.GetFileName(filePath);
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int count = fileUpload.PostedFile.ContentLength;
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string savePath = constUrl + fileName;
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string fullPath = initFullPath + fileName;
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string fullPathServer = initFullPathServer + fileName;
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if (!File.Exists(fullPath))
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{
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byte[] buffer = new byte[count];
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Stream stream = fileUpload.PostedFile.InputStream;
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stream.Read(buffer, 0, count);
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MemoryStream memoryStream = new MemoryStream(buffer);
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FileStream fs = new FileStream(fullPath, FileMode.Create, FileAccess.Write);
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memoryStream.WriteTo(fs);
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memoryStream.Flush();
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memoryStream.Close();
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fs.Flush();
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fs.Close();
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memoryStream = null;
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fs = null;
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if (!string.IsNullOrEmpty(fileUrl))
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{
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fileUrl += "," + savePath;
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}
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else
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{
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fileUrl += savePath;
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}
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MemoryStream memoryStreamEng = new MemoryStream(buffer);
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FileStream fsServer = new FileStream(fullPathServer, FileMode.Create, FileAccess.Write);
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memoryStreamEng.WriteTo(fsServer);
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memoryStreamEng.Flush();
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memoryStreamEng.Close();
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fsServer.Flush();
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fsServer.Close();
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memoryStreamEng = null;
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fsServer = null;
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}
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else
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{
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fileUrl = string.Empty;
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}
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return fileUrl;
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}
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#endregion
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#region 附件虚删除
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/// <summary>
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/// 附件删除
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/// </summary>
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/// <param name="fileUrl">附件路径</param>
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/// <param name="hiddenUrl">隐藏列路径</param>
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/// <returns></returns>
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public static string DeleteAttachment(string fileUrl, string hiddenUrl)
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{
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string hdAttachUrlStr = hiddenUrl;
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string[] urlArray = hdAttachUrlStr.Split('|');
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string scanUrl = string.Empty;
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for (int j = 0; j < urlArray.Length; j++)
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{
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if (!string.IsNullOrEmpty(urlArray[j]))
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{
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if (j == 0)
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{
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scanUrl += urlArray[j];
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}
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else
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{
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scanUrl += "\\" + urlArray[j];
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}
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}
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}
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if (!String.IsNullOrEmpty(fileUrl))
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{
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string[] arrStr = fileUrl.Split(new string[] { "," }, System.StringSplitOptions.RemoveEmptyEntries);
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fileUrl = null;
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for (int i = 0; i < arrStr.Length; i++)
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{
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if (scanUrl != arrStr[i])
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{
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if (i != arrStr.Length - 1)
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{
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fileUrl += arrStr[i] + ",";
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}
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else
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{
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fileUrl += arrStr[i];
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}
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}
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}
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}
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return fileUrl;
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}
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#endregion
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#region 附件资源删除
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/// <summary>
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/// 附件资源删除
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/// </summary>
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/// <param name="fileUrl">附件路径</param>
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/// <param name="hiddenUrl">隐藏列路径</param>
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/// <returns></returns>
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public static void DeleteFile(string rootPath, string fileUrl)
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{
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if (!string.IsNullOrEmpty(fileUrl))
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{
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string[] strs = fileUrl.Trim().Split(',');
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foreach (var item in strs)
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{
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string urlFullPath = rootPath + item;
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if (File.Exists(urlFullPath))
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{
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File.Delete(urlFullPath);
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}
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}
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}
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}
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#endregion
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#region 附件打开公共方法
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/// <summary>
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/// 显示附件文件
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/// </summary>
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public static void ShowAttachmentsFile(string rootPath, string path)
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{
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string[] arrStr = path.Split(new string[] { "," }, System.StringSplitOptions.RemoveEmptyEntries);
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for (int i = 0; i < arrStr.Length; i++)
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{
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if (!string.IsNullOrEmpty(arrStr[i]))
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{
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string[] urlArray = arrStr[i].Split('\\');
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string scanUrl = string.Empty;
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for (int j = 0; j < urlArray.Length; j++)
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{
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scanUrl += urlArray[j] + "|";
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}
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string url = rootPath + arrStr[i].Replace('\\', '/');
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System.Web.HttpContext.Current.Response.Write("<script type='text/javascript' language='javascript'>window.open('" + url + "')</script>");
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}
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}
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}
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#endregion
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#region 附件在Image中显示
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/// <summary>
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/// 附件在Image中显示
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/// </summary>
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/// <param name="rootValue">文件夹路径</param>
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/// <param name="path">附件路径</param>
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/// <returns>附件显示HTML</returns>
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public static string ShowImage(string rootValue, string path, decimal width, decimal height)
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{
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string htmlStr = string.Empty;
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if (!string.IsNullOrEmpty(path))
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{
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htmlStr = "<table runat='server' cellpadding='5' cellspacing='5' style=\"width: 100%\">";
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string[] arrStr = path.Split(new string[] { "," }, System.StringSplitOptions.RemoveEmptyEntries);
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for (int i = 0; i < arrStr.Length; i++)
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{
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if (!string.IsNullOrEmpty(arrStr[i]))
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{
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string[] urlArray = arrStr[i].Split('\\');
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string scanUrl = string.Empty;
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for (int j = 0; j < urlArray.Length; j++)
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{
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scanUrl += urlArray[j] + "|";
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}
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string url = rootValue + arrStr[i].Replace('\\', '/');
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string[] subUrl = url.Split('/');
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string fileName = subUrl[subUrl.Count() - 1];
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string newFileName = fileName.Substring(fileName.IndexOf("~") + 1);
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htmlStr += "<tr><td style=\"width: 100%\" align=\"left\"><img width='" + width + "' height='" + height + "' src='" + url + "'></img></td>";
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}
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}
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htmlStr += "</table>";
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}
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return htmlStr;
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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="FileName"></param>
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/// <param name="JpgSize"></param>
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/// <param name="Wpx"></param>
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/// <param name="Hpx"></param>
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/// <returns></returns>
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public static int getJpgSize(string FileName, out System.Drawing.Size JpgSize, out float Wpx, out float Hpx)
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{//C#快速获取JPG图片大小及英寸分辨率
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JpgSize = new System.Drawing.Size(0, 0);
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Wpx = 0; Hpx = 0;
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int rx = 0;
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if (!File.Exists(FileName)) return rx;
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FileStream F_Stream = File.OpenRead(FileName);
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int ff = F_Stream.ReadByte();
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int type = F_Stream.ReadByte();
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if (ff != 0xff || type != 0xd8)
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{//非JPG文件
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F_Stream.Close();
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return rx;
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}
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long ps = 0;
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do
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{
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do
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{
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ff = F_Stream.ReadByte();
|
||
if (ff < 0) //文件结束
|
||
{
|
||
F_Stream.Close();
|
||
return rx;
|
||
}
|
||
} while (ff != 0xff);
|
||
do
|
||
{
|
||
type = F_Stream.ReadByte();
|
||
} while (type == 0xff);
|
||
//MessageBox.Show(ff.ToString() + "," + type.ToString(), F_Stream.Position.ToString());
|
||
ps = F_Stream.Position;
|
||
switch (type)
|
||
{
|
||
case 0x00:
|
||
case 0x01:
|
||
case 0xD0:
|
||
case 0xD1:
|
||
case 0xD2:
|
||
case 0xD3:
|
||
case 0xD4:
|
||
case 0xD5:
|
||
case 0xD6:
|
||
case 0xD7:
|
||
break;
|
||
case 0xc0: //SOF0段
|
||
ps = F_Stream.ReadByte() * 256;
|
||
ps = F_Stream.Position + ps + F_Stream.ReadByte() - 2; //加段长度
|
||
F_Stream.ReadByte(); //丢弃精度数据
|
||
//高度
|
||
JpgSize.Height = F_Stream.ReadByte() * 256;
|
||
JpgSize.Height = JpgSize.Height + F_Stream.ReadByte();
|
||
//宽度
|
||
JpgSize.Width = F_Stream.ReadByte() * 256;
|
||
JpgSize.Width = JpgSize.Width + F_Stream.ReadByte();
|
||
//后面信息忽略
|
||
if (rx != 1 && rx < 3) rx = rx + 1;
|
||
break;
|
||
case 0xe0: //APP0段
|
||
ps = F_Stream.ReadByte() * 256;
|
||
ps = F_Stream.Position + ps + F_Stream.ReadByte() - 2; //加段长度
|
||
F_Stream.Seek(5, SeekOrigin.Current); //丢弃APP0标记(5bytes)
|
||
F_Stream.Seek(2, SeekOrigin.Current); //丢弃主版本号(1bytes)及次版本号(1bytes)
|
||
int units = F_Stream.ReadByte(); //X和Y的密度单位,units=0：无单位,units=1：点数/英寸,units=2：点数/厘米
|
||
//水平方向(像素/英寸)分辨率
|
||
Wpx = F_Stream.ReadByte() * 256;
|
||
Wpx = Wpx + F_Stream.ReadByte();
|
||
if (units == 2) Wpx = (float)(Wpx * 2.54); //厘米变为英寸
|
||
//垂直方向(像素/英寸)分辨率
|
||
Hpx = F_Stream.ReadByte() * 256;
|
||
Hpx = Hpx + F_Stream.ReadByte();
|
||
if (units == 2) Hpx = (float)(Hpx * 2.54); //厘米变为英寸
|
||
//后面信息忽略
|
||
if (rx != 2 && rx < 3) rx = rx + 2;
|
||
break;
|
||
default: //别的段都跳过////////////////
|
||
ps = F_Stream.ReadByte() * 256;
|
||
ps = F_Stream.Position + ps + F_Stream.ReadByte() - 2; //加段长度
|
||
break;
|
||
}
|
||
if (ps + 1 >= F_Stream.Length) //文件结束
|
||
{
|
||
F_Stream.Close();
|
||
return rx;
|
||
}
|
||
F_Stream.Position = ps; //移动指针
|
||
} while (type != 0xda); // 扫描行开始
|
||
F_Stream.Close();
|
||
return rx;
|
||
}
|
||
}
|
||
}
|