最近项目上的一个上传文件功能，项目是MVC+EF+LigerUI 来做的，贴出来大家一起分享下
1、页面需要引用这个JS 和 CSS
<script type="text/javascript" src="/Content/uploadify/jquery.uploadify.min.js"></script>
<link href="/Content/uploadify/uploadify.css" type="text/css" rel="stylesheet" />
2、页面添加Upload.ashx
3、代码如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.IO;
using System.Web.Security;
namespace AL.Web {
/// <summary>
/// Upload 的摘要说明
/// </summary>
public class Upload : IHttpHandler {
public void ProcessRequest(HttpContext context) {
context.Response.ContentType = "text/plain" ;
//context.Response.Write("Hello World");
string r = "" ;
//此处有时候穿过来的sn后面还有一些乱七八糟的字符，没研究什么意思，就判断一下，截取一下就完事了，小项目~
string sn = context.Request.QueryString[ "sn" ];
if (sn != null && sn.Length > 14) sn = sn.Substring(0, 14);
if (context.User.Identity.IsAuthenticated == false ) {
// 未登录用户
}
try {
//获取上传的文件数据
HttpPostedFile file = context.Request.Files[ "Filedata" ];
string fileName = file.FileName;
string fileType = Path.GetExtension(fileName).ToLower();
//由于不同浏览器取出的FileName不同（有的是文件绝对路径，有的是只有文件名），故要进行处理
if (fileName.IndexOf( ' ' ) > -1) {
fileName = fileName.Substring(fileName.LastIndexOf( ' ' ) + 1);
} else if (fileName.IndexOf( '/' ) > -1) {
fileName = fileName.Substring(fileName.LastIndexOf( '/' ) + 1);
}
//上传的目录
string uploadDir = "~/Content/uploadfile/TMP/" + System.DateTime.Now.ToString( "yyyyMM" ) + "/" ;
//上传的路径
//生成年月文件夹及日文件夹
if (Directory.Exists(context.Server.MapPath(uploadDir)) == false ) {
Directory.CreateDirectory(context.Server.MapPath(uploadDir));
}
if (Directory.Exists(context.Server.MapPath(uploadDir + System.DateTime.Now.ToString( "dd" ) + "/" )) == false ) {
Directory.CreateDirectory(context.Server.MapPath(uploadDir + System.DateTime.Now.ToString( "dd" ) + "/" ));
}
uploadDir = uploadDir + System.DateTime.Now.ToString( "dd" ) + "/" ;
string uploadPath = uploadDir + FormsAuthentication.HashPasswordForStoringInConfigFile(fileName, "MD5" ).Substring(0, 8) + fileType;
//保存文件
file.SaveAs(context.Server.MapPath(uploadPath));
//下面这句代码缺少的话，上传成功后上传队列的显示不会自动消失
//DbHelperOleDb.ExecuteSql("insert into [temp](temp_sn,temp_Content) values('" + sn + "','" + uploadPath + "')");
//Response.Write("1");
//context.Response.Write("{'IsError':false, 'Data':'" + uploadPath + "'}");
r = "{'IsError':false, 'Data':'" + uploadPath + "'}" ;
} catch (Exception ex) {
//Response.Write("0");
//throw ex;
//context.Response.Write("{IsError: true, data:'" + ex.Message + "'}");
r = "{'IsError':true, 'Data':'" + ex.Message + "'}" ;
} finally {
r = r.Replace( "'" , "\"" );
context.Response.Write(r);
context.Response.End();
}
}
public bool IsReusable {
get {
return false ;
}
}
}
}
页面前台处理如下图：
#FilesUrl 是一个文本框，将上传文件的路径赋值进去，将地址存入数据库，后续直接根据地址可以下载查看。
以上就是实现C#文件上传功能的简单三步，希望对大家的学习有所帮助。
dy("nrwz");