C#实现把图片下载到服务器代码
ASPX页面代码：
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<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="GetPictureByUrl.aspx.cs" Inherits="HoverTreeMobile.GetPictureByUrl" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>根据网址把图片下载到服务器</title>
</head>
<body>
<form id="form1" runat="server">
<div>
图片网址：<br /><asp:TextBox runat="server" ID="textBoxImgUrl" Width="500" Text="/hvtimg/201508/cnvkv745.jpg" />
<br /> <asp:Button runat="server" ID="btnImg" Text="下载" OnClick="btnImg_Click" />
<br /><asp:Image runat="server" ID="hvtImg" />
<br />
<asp:Literal runat="server" ID="ltlTips" />
</div>
</form>
</body>
</html>
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cs页面代码：
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using System;
namespace HoverTreeMobile
{
public partial class GetPictureByUrl : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnImg_Click(object sender, EventArgs e)
{
try
{
System.Net.WebClient m_hvtWebClient = new System.Net.WebClient();
string m_keleyiPicture = Server.MapPath("/hovertreeimages/keleyi.jpg");
//根据网址下载文件
m_hvtWebClient.DownloadFile(textBoxImgUrl.Text, m_keleyiPicture);
hvtImg.ImageUrl = "/hovertreeimages/keleyi.jpg";
ltlTips.Text = string.Empty;
}
catch(Exception ex)
{
ltlTips.Text = ex.ToString();
}
}
}
}
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另外给大家分享一下下载图片的核心方法的思路
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using System.Net;
WebClient myclient = new WebClient();
myclient.DownloadFile("http://www.baidu.com/img/sslm_logo.gif",@"c:\baidu.gif");
DownloadFile方法里的address就是你要拼成的远程服务器上的URL.
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好了，小伙伴们是否有了新的认识了呢，希望大家能够喜欢。