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前端代码: 使用visual studio开发实现文件上传 前端页面代码: <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="scientist.WebForm1" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <script type="text/javascript"> var baseText = null; function upOpen() { var xzOpen = document.getElementById("xzOpen"); xzOpen.style.top = "200px"; //窗口距离浏览器内容区最上方的偏移值 xzOpen.style.left = "500px"; //窗口距离浏览器内容区最左边的偏移值 xzOpen.style.width = "500px"; //窗口的宽度 xzOpen.style.height = "300px"; //窗口的高度 if (baseText == null) baseText = xzOpen.innerHTML; xzOpen.innerHTML = baseText + "<div id=\"statusbar\"><button onclick=\"hidePopup(); \">Close window<button></div>" var sbar = document.getElementById("statusbar"); sbar.style.marginTop = (parseInt(100)-20) + "px"; xzOpen.style.visibility = "visible"; document.getElementById("xzOpen").click(); } </script> <title>上传文档</title> <style type="text/css"> *{ margin:0; padding:0;} .exDiv{} .boxmain{float:left;margin-right:0px;width:100%;} .xzOpen{position: absolute; visibility: hidden; overflow: hidden; border:2px solid #CCC; background-color: #FFCBB3; border:2px solid #333; padding:5px; } .F1{float:left;margin-top:5px;} .B1{float:right;margin-top:80px;} .left{position:absolute;left:0; background:#BBFFBB;height:300px;width:20%} .main{margin-right:200px;background:#79FF79; height:300px;;width:100%;margin-left:auto;} .up{margin-right:1px;background:#984B4B; height:30px;width:64px; margin-left:0px; } </style> </head> <body> <form id="form1" runat="server"> <div class="exDiv" > <font >上传文件</font> </div> <div class="xzOpen" id="xzOpen" > <div class="F1" id="F1"> <asp:FileUpload ID="FileUpload1" runat="server" Width="224px" /> </div> <div class="B1" id="B1"> <asp:Button ID="Button1" runat="server" Text="提交" onclick="Button1_Click" Width="107px" /> </div> </div> </form> <div class="boxmain"> <div class="main">main</div> </div> <div class="left"><input type="file" id="xzFile" /> <button type="button" class="up" onclick="upOpen()">选择文件</button> </div> </body> </html> 后台C#部分: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; namespace scientist { public partial class WebForm1 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void Button1_Click(object sender, EventArgs e) { HttpPostedFile postedFile = this.FileUpload1.PostedFile; //获取到要上传的文件 String fileName = "";//文件名 String filePath = "filesNameTest/";//文件保存路径 fileName = System.IO.Path.GetFileName(postedFile.FileName);//获取文件名称 if (System.IO.Directory.Exists(Server.MapPath(filePath)) == false)//判断文件夹是否存在 { System.IO.Directory.CreateDirectory(Server.MapPath(filePath));//如果不存在就创建file文件夹 } if (System.IO.File.Exists(Server.MapPath(filePath+fileName)) == true)//判断同名文件是否存在 { Page.ClientScript.RegisterStartupScript(this.GetType(), "message", "alert('同名文件已存在')", true);//弹窗提示文件已存在 } else//文件不存在则保存文件 { if (fileName != "")//判断前端是否有文件传过来 { String fileSuffix = System.IO.Path.GetExtension(fileName); //获取上传文件的扩展名 postedFile.SaveAs(System.Web.HttpContext.Current.Request.MapPath(filePath) + fileName);//保存文件至根目录下的files文件夹里 Page.ClientScript.RegisterStartupScript(this.GetType(), "message", "alert('已经保存成功')", true);//弹窗提示保存成功 } else { Page.ClientScript.RegisterStartupScript(this.GetType(), "message", "alert('请选择文件')", true);//弹窗提示未选择文件 } } } } }
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