页面代码：
1.引入js和css文件
<link href="~/Scripts/uploadify/uploadify.css" rel="external nofollow" rel="stylesheet" />
<style type="text/css">
#upDiv {
width: 550px;
height: 400px;
border: 2px solid red;
margin-top: 30px;
margin-left: 50px;
float: left;
}
div form {
text-align: center;
vertical-align: middle;
}
h2, h3 {
text-align: center;
color: #00B2EE;
}
#upList {
width: 900px;
height: 400px;
float: left;
margin-top: 30px;
margin-left: 50px;
overflow-y: scroll;
border: 2px solid red;
}
#filelist {
width: 45%;
height: 400px;
float: left;
}
#lineDiv {
width: 50px;
height: 400px;
float: left;
}
#imglist {
width: 45%;
height: 400px;
float: left;
}
#form1 {
margin-top: 25px;
}
img {
width: 25px;
height: 25px;
}
.btn {
width: 150px;
height: 40px;
text-align: center;
background-color: #b58061;
color: white;
}
p {
cursor: pointer;
}
</style>
<script src="/UploadFiles/2021-04-02/jquery-1.8.2.min.js">
2.body内代码
<body style="background: url(../../Images/bg.jpg) no-repeat; background-size: 1600px; width: 1600px; height: 700px; ">
<h2 style="text-align:center;">ASP .NET MVC4 多文件文件上传实例</h2>
<form id="form1">
<div>
<input type="file" id="myfile" name="myfile" />
</div>
<div>
<a class="btn" href="javascript:$('#myfile').uploadify('upload');" rel="external nofollow" >上传第一个</a>
<a class="btn" href="javascript:$('#myfile').uploadify('upload','*');" rel="external nofollow" >上传队列</a>
<a class="btn" href="javascript:$('#myfile').uploadify('cancel');" rel="external nofollow" >取消第一个</a>
<a class="btn" href="javascript:$('#myfile').uploadify('cancel', '*');" rel="external nofollow" >取消队列</a>
</div>
</form>
<div id="upList">
<div id="filelist">
<h3>文件列表</h3>
</div>
<div id="lineDiv"></div>
<div id="imglist">
<h3>图片列表</h3>
</div>
</div>
</body>
后台代码：
public ActionResult loadFileInfo()
{
StringBuilder sb = new StringBuilder();
DirectoryInfo theFolder = new DirectoryInfo(Server.MapPath("~/UploadFile/"));
DirectoryInfo[] dirInfo = theFolder.GetDirectories();
//遍历文件夹
foreach (DirectoryInfo NextFolder in dirInfo)
{
FileInfo[] fileInfo = NextFolder.GetFiles();
//遍历文件
foreach (FileInfo NextFile in fileInfo)
{
string exStr = NextFile.Extension;
string str = NextFile.Name;
if (exStr == ".zip" || exStr == ".7z" || exStr == ".rar" || exStr.ToLower() == ".rars")
{
sb.Append("<p onclick='openFile(this)'><img src='../../Images/zip.png' width='25' height='25' />" + str + "</p>");
}
else if (exStr == ".doc" || exStr == ".docx")
{
sb.Append("<p onclick='openFile(this)'><img src='../../Images/words.png' width='25' height='25' />" + str + "</p>");
}
else if (exStr == ".ppt" || exStr == ".pptx")
{
sb.Append("<p onclick='openFile(this)'><img src='../../Images/ppt.jpg' width='25' height='25' />" + str + "</p>");
}
else if (exStr == ".xlsx" || exStr == ".xls" || exStr == ".XLS")
{
sb.Append("<p onclick='openFile(this)'><img src='../../Images/excel.png' width='25' height='25' />" + str + "</p>");
}
else if (exStr == ".pdf")
{
sb.Append("<p onclick='openFile(this)'><img src='../../Images/pdf.jpg' width='25' height='25' />" + str + "</p>");
}
else if (exStr == ".js" || exStr == ".JS")
{
sb.Append("<p onclick='openFile(this)'><img src='../../Images/js.png' width='25' height='25' />" + str + "</p>");
}
else if (exStr == ".html" || exStr == ".HTML")
{
sb.Append("<p onclick='openFile(this)'><img src='../../Images/html.png' width='25' height='25' />" + str + "</p>");
}
else if (exStr == ".txt" || exStr == ".TXT")
{
sb.Append("<p onclick='openFile(this)'><img src='../../Images/txt.png' width='25' height='25' />" + str + "</p>");
}
else if (exStr == ".mp3" || exStr == ".wmv" || exStr == ".aac")
{
sb.Append("<p onclick='openFile(this)'><img src='../../Images/mp3.png' width='25' height='25' />" + str + "</p>");
}
else if (exStr == ".avi" || exStr == ".mov" || exStr == ".mp4" || exStr == ".ram" || exStr == ".flv")
{
sb.Append("<p onclick='openFile(this)'><img src='../../Images/video.png' width='25' height='25' />" + str + "</p>");
}
else {
sb.Append("<p onclick='openFile(this)'><img src='../../Images/file.jpg' width='25' height='25' />" + str + "</p>");
}
}
}
return Content(sb.ToString());
}
public ActionResult loadImgInfo()
{
StringBuilder sb = new StringBuilder();
DirectoryInfo theFolder = new DirectoryInfo(Server.MapPath("~/UploadImg/"));
DirectoryInfo[] dirInfo = theFolder.GetDirectories();
//遍历文件夹
foreach (DirectoryInfo NextFolder in dirInfo)
{
FileInfo[] fileInfo = NextFolder.GetFiles();
//遍历文件
foreach (FileInfo NextFile in fileInfo)
{
string str = NextFile.Name;
sb.Append("<p onclick='openImg(this)'><img src='../../Images/img.png' width='25' height='25' />" + str + "</p>");
}
}
return Content(sb.ToString());
}
public ActionResult UploadFile()
{
string filepath = "";
bool fileOK = false;
//判断是否已经选择上传文件
HttpPostedFileBase file = Request.Files["myfile"];
if (file != null && file.ContentLength > 0)
{
String fileExtension = System.IO.Path.GetExtension(file.FileName).ToLower();
//判断是否为图片类型
String[] allowedExtensions = { ".gif", ".png", ".bmp", ".jpg" };
for (int i = 0; i < allowedExtensions.Length; i++)
{
if (fileExtension == allowedExtensions[i])
{
fileOK = true;
}
}
if (fileOK)
{
//设置上传目录
string path = Server.MapPath("~/UploadImg/Img/");
if (!Directory.Exists(path))
Directory.CreateDirectory(path);
string filenNamer = file.FileName;
//文件路径
filepath = path + filenNamer;
file.SaveAs(filepath);
return RedirectToAction("Upload", "Home");
}
else
{
//设置上传目录
string path = Server.MapPath("~/UploadFile/File/");
if (!Directory.Exists(path))
Directory.CreateDirectory(path);
//不为图片类型的文件存入到File目录中
string filenNamer = file.FileName;
//文件路径
filepath = path + filenNamer;
file.SaveAs(filepath);
return RedirectToAction("Upload", "Home");
}
}
else
{
var script = String.Format("<script>alert('请选择文件后再上传！');location.href='{0}'</script>", Url.Action("Upload"));
return Content(script, "text/html");
}
}
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