代码改变世界

WebForm 上传图片

2020-07-25 17:11  idea555  阅读(202)  评论(0)    收藏  举报

前端：
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Test1.aspx.cs" Inherits="WebFrom.Test1" %>
<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>

</head>
<body>
<form id="form1" runat="server">
<div>
<asp:FileUpload ID="FileUpload1" runat="server" /><br />
<asp:Button ID="Button1" runat="server" Text="上传" OnClick="Button1_Click" />
<asp:Label ID="Label1" runat="server" Text=""></asp:Label>
<br />
<asp:Image ID="Image1" runat="server" visible="false" />
<br />
</div>
</form>
</body>
</html>

 后端：

using My.Framework.Page;
using My.Framework.TrSqlHelper;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Wuqi.Webdiyer;

namespace WebFrom
{
public partial class Test1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{


}

 

protected void Button1_Click(object sender, EventArgs e)
{
if (FileUpload1.HasFile) //判断是否上传了文件
{
string savePath = Server.MapPath("~/upload/");//指定上传文件在服务器上的保存路径
//检查服务器上是否存在这个物理路径，如果不存在，则创建
if (!System.IO.Directory.Exists(savePath))
{
//对该路径应该有足够的权限，否则报错
System.IO.Directory.CreateDirectory(savePath);
}
savePath = savePath + "\\" + FileUpload1.FileName;
FileUpload1.SaveAs(savePath); //保存文件
Label1.Text = string.Format("<a href='upload/{0}'>upload/{0}</a>", FileUpload1.FileName);
Image1.Visible = true;
Image1.ImageUrl = "~/upload/" + FileUpload1.FileName;
}

}
}
}