winform如何上传图片到服务器
有BS网站一个，然后，我添加产品要通过winform来添加，可是，图片怎么上传到服务器指定目录呢？
C#初学者，所以提的问题对各位前辈朋友来说可能很简单，也可能问法也不对，非常期待大家的回答……
您好
請參考 WebClient.UploadFile 方法 : 将本地文件上载到具有指定 URI 的资源。
http://msdn.microsoft.com/zh-cn/library/bcfh1hw9(v=VS.80).aspx
您好，
winform 上传图片到服务器，您可以根据不同的需求使用不同的方法，之前 Stone 和小欧的方法都可以，下面还有一些您可以参考一下：
1 、通过 TextBox 上传图片到服务器： http://blog.csdn.net/anya/archive/2009/06/15/4270508.aspx
2 、自己写一个 SOCKET 客户端，和一个 SOCKET 服务端： http://www.cnblogs.com/steven-mo/archive/2008/06/24/1228857.html
3 、使用 Uploader.ashx 方法： http://hi.baidu.com/longyi98/blog/item/7247b924a0b11b26d507426c.html
希望以上内容对您有所帮助。最后请把对您有帮助的回复 “ 标记为答复 ” ，这样可以更好的帮助论坛里其他和您遇到类似问题的朋友。
谢谢您的理解和支持！
放到同一目录，只记住文件名，然后用一次传上去
http://feiyun0112.cnblogs.com/
Socket网络传输（C#）
如果想要利用C#通过Socket进
行网络传输文件，一般情况下，大家会首先考虑使用.NET自带的Socket.SendFile Method
(String)这个方法。不过这个方法没有相应的文件接受方法，而且据说会有8KB的限制。所以，我尝试了另外一种方法，发现效果不错。下面，我就来简
单介绍一下其原理。
Socket.Send()和Socket.Receive()方法都是传递byte[]的，所以就要想办法把文件给变成byte[]。一开始试过用
StreamReader来读取string，然后用Encoding来进行编码得到byte[]，接收以后再还原成string写入文件。结果发现不可
行，只有纯文本文件以这种方法传输是正常的。
无奈之下，只好另想办法。后来在File类下找到了这两个方法——File.ReadAllBytes()和
File.WriteAllBytes()。试了一下用这两个方法来把文件变成byte[]，再把byte[]还原成文件，结果成功了！（试过了传输图片
和rar压缩文件，都OK！）
有兴趣的朋友，可以到这里下载源码：http://download.csdn.net/source/511058（原创代码）
网上有很多方案，起初用时，因为对asp.net不太了解，觉得FTP实现不错，可是后来发现，如果机器在域控下，就会有问题。
一年过去了，asp.net也熟悉了，知道ajax没事应该用ashx，验证码也用ashx，当然这里要说的WinForm上传也应该是ashx了 吧，哈哈，先提供简单思路：
接收文件的asp.net是：Uploader.ashx，相关代码：
view plain copy to clipboard print ?
<%@ WebHandler Language= "C#" Class= "Uploader" %> using System; using System.IO; using System.Web; public class Uploader : IHttpHandler { public void ProcessRequest(HttpContext hc) { foreach ( string fileKey in hc.Request.Files) { HttpPostedFile file = hc.Request.Files[fileKey]; file.SaveAs(Path.Combine(hc.Server.MapPath( "." ), file.FileName)); } } public bool IsReusable { get { return true ; } } }发送图片或文件的WinForm.cs 相关代码：
view plain copy to clipboard print ?
System.Net.WebClient myWebClient = new System.Net.WebClient(); myWebClient.UploadFile( "http://www.yongfa365.com/Uploader.ashx" , "POST" , "C:\\WINDOWS\\system32\\cmd.exe" );OK,完了，这样操作后，再也不用管是不是在域控内了，只要能上网，就能上传。够方便吧。
如果你要批量上传，还有上传后保存在哪个目录等操作可以参考 柳永法 (yongfa365)'Blog 写的：
接收文件的asp.net是：Uploader.ashx，相关代码：
view plain copy to clipboard print ?
<%@ WebHandler Language= "C#" Class= "Uploader" %> using System; using System.IO; using System.Web; public class Uploader : IHttpHandler { public void ProcessRequest(HttpContext hc) { string NowPath = Path.Combine(hc.Server.MapPath( "." ), hc.Request[ "path" ]); if (!Directory.Exists(NowPath)) { Directory.CreateDirectory(NowPath); } foreach ( string fileKey in hc.Request.Files) { HttpPostedFile file = hc.Request.Files[fileKey]; string FilePath = Path.Combine(NowPath, file.FileName); if (File.Exists(FilePath)) { if (Convert.ToBoolean(hc.Request[ "overwrite" ])) { File.Delete(FilePath); } else { continue ; } } file.SaveAs(FilePath); } } public bool IsReusable { get { return true ; } } }发送图片或文件的WinForm.cs 相关代码：
view plain copy to clipboard print ?
string url = @ "http://www.yongfa365.com/Uploader.ashx?Overwrite=true&PATH=Logs\" + DateTime.Now.ToString(" yyyy-MM-dd"); foreach ( string file in Directory.GetFiles(item)) { System.Net.WebClient myWebClient = new System.Net.WebClient(); myWebClient.UploadFile(url, "POST" , file); }
Winform如何通过TextBox上传图片到服务器
2009-06-15 15:11 1045人阅读 评论(9) 收藏 举报
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要
/// 使用代码编辑器修改此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.button1 = new System.Windows.Forms.Button();
this.textBox1 = new System.Windows.Forms.TextBox();
this.linkLabel1 = new System.Windows.Forms.LinkLabel();
this.button2 = new System.Windows.Forms.Button();
this.txtFileName = new System.Windows.Forms.TextBox();
this.label3 = new System.Windows.Forms.Label();
this.txtServerPath = new System.Windows.Forms.TextBox();
this.label2 = new System.Windows.Forms.Label();
this.button3 = new System.Windows.Forms.Button();
this.label1 = new System.Windows.Forms.Label();
this.timer1 = new System.Windows.Forms.Timer(this.components);
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.button4 = new System.Windows.Forms.Button();
((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(84, 15);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(113, 45);
this.button1.TabIndex = 0;
this.button1.Text = "监听";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(263, 28);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(292, 21);
this.textBox1.TabIndex = 1;
//
// linkLabel1
//
this.linkLabel1.Location = new System.Drawing.Point(144, 266);
this.linkLabel1.Name = "linkLabel1";
this.linkLabel1.Size = new System.Drawing.Size(440, 24);
this.linkLabel1.TabIndex = 15;
this.linkLabel1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
this.linkLabel1.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.linkLabel1_LinkClicked);
//
// button2
//
this.button2.Location = new System.Drawing.Point(498, 178);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(80, 23);
this.button2.TabIndex = 14;
this.button2.Text = "浏览文件…";
//
// txtFileName
//
this.txtFileName.Location = new System.Drawing.Point(256, 178);
this.txtFileName.Name = "txtFileName";
this.txtFileName.Size = new System.Drawing.Size(232, 21);
this.txtFileName.TabIndex = 12;
//
// label3
//
this.label3.AutoSize = true;
this.label3.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.label3.ForeColor = System.Drawing.Color.DarkBlue;
this.label3.Location = new System.Drawing.Point(136, 184);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(122, 12);
this.label3.TabIndex = 13;
this.label3.Text = "请输入上传文件名：";
this.label3.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// txtServerPath
//
this.txtServerPath.Location = new System.Drawing.Point(256, 154);
this.txtServerPath.Name = "txtServerPath";
this.txtServerPath.Size = new System.Drawing.Size(320, 21);
this.txtServerPath.TabIndex = 9;
this.txtServerPath.Text = "http://www.x.com/WeUpload/";
//
// label2
//
this.label2.AutoSize = true;
this.label2.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.label2.ForeColor = System.Drawing.Color.Navy;
this.label2.Location = new System.Drawing.Point(136, 158);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(122, 12);
this.label2.TabIndex = 10;
this.label2.Text = "请输入服务器地址：";
this.label2.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// button3
//
this.button3.Location = new System.Drawing.Point(320, 210);
this.button3.Name = "button3";
this.button3.Size = new System.Drawing.Size(75, 23);
this.button3.TabIndex = 11;
this.button3.Text = "上载文件";
this.button3.Click += new System.EventHandler(this.button3_Click);
this.button3.MouseDown += new System.Windows.Forms.MouseEventHandler(this.button3_MouseDown);
//
// label1
//
this.label1.ForeColor = System.Drawing.Color.Red;
this.label1.Location = new System.Drawing.Point(136, 242);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(448, 16);
this.label1.TabIndex = 8;
this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// timer1
//
this.timer1.Enabled = true;
this.timer1.Interval = 35000;
this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
//
// pictureBox1
//
this.pictureBox1.Location = new System.Drawing.Point(387, 74);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(100, 50);
this.pictureBox1.TabIndex = 16;
this.pictureBox1.TabStop = false;
//
// button4
//
this.button4.Location = new System.Drawing.Point(319, 266);
this.button4.Name = "button4";
this.button4.Size = new System.Drawing.Size(75, 23);
this.button4.TabIndex = 17;
this.button4.Text = "打水印";
this.button4.UseVisualStyleBackColor = true;
this.button4.Click += new System.EventHandler(this.button4_Click);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(662, 317);
this.Controls.Add(this.button4);
this.Controls.Add(this.pictureBox1);
this.Controls.Add(this.linkLabel1);
this.Controls.Add(this.button2);
this.Controls.Add(this.txtFileName);
this.Controls.Add(this.label3);
this.Controls.Add(this.txtServerPath);
this.Controls.Add(this.label2);
this.Controls.Add(this.button3);
this.Controls.Add(this.label1);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.button1);
this.Name = "Form1";
this.Text = "Form1";
this.Resize += new System.EventHandler(this.Form1_Resize);
((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
private System.Windows.Forms.Button button1;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.LinkLabel linkLabel1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.TextBox txtFileName;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.TextBox txtServerPath;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Timer timer1;
private System.Windows.Forms.PictureBox pictureBox1;
private System.Windows.Forms.Button button4;
后台代码:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using System.Data.SqlClient;
using System.Drawing.Imaging;
using System.Net;
using System.IO;
using System.Runtime.InteropServices;
using System.Net.Sockets;
using Microsoft.Win32;
#region 上传图片到服务器
private void button3_Click(object sender, EventArgs e)
{
// 需要注意的是：txtServerPath文件夹有匿名可写的权限。
// 可以自己定义新文件名字
if (txtFileName.Text.Trim() == "" || txtServerPath.Text.Trim() == "")
{
MessageBox.Show("请输入你要上载的文件名字！", "错误：", MessageBoxButtons.OK,
MessageBoxIcon.Information);
}
else
{
/// 得到文件名，文件扩展名字，服务器路径
string fileNamePath = txtFileName.Text.Trim();
string uriString = txtServerPath.Text.Trim();
string fileName = fileNamePath.Substring(fileNamePath.LastIndexOf("//") + 1);
string fileNameExt = fileName.Substring(fileName.LastIndexOf(".") + 1);
if (uriString.EndsWith("/") == false) uriString = uriString + "/";
uriString = uriString + fileName;
/// 创建WebClient实例
WebClient myWebClient = new WebClient();
myWebClient.Credentials = CredentialCache.DefaultCredentials;
// 要上传的文件
FileStream fs = new FileStream(this.txtFileName.Text, FileMode.Open, FileAccess.Read);
//FileStream fs = OpenFile();
BinaryReader r = new BinaryReader(fs);
try
{
//使用UploadFile方法可以用下面的格式
//myWebClient.UploadFile(uriString,"PUT",fileNamePath);
byte[] postArray = r.ReadBytes((int)fs.Length);
Stream postStream = myWebClient.OpenWrite(uriString, "PUT");
if (postStream.CanWrite)
{
postStream.Write(postArray, 0, postArray.Length);
label1.Text = fileName + "上传成功！";
}
else
{
label1.Text = "文件目前不可写！";
}
postStream.Close();
linkLabel1.Text = "查看上载的文件";
for (int i = linkLabel1.Links.Count - 1; i > -1; i--)
linkLabel1.Links.Remove(linkLabel1.Links[i]);
linkLabel1.Links.Add(0, linkLabel1.Text.Length, uriString);
}
catch (WebException errMsg)
{
label1.Text = "上传失败：" + errMsg.Message;
}
}
}
private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
this.WindowState = FormWindowState.Minimized;
this.linkLabel1.Links[linkLabel1.Links.IndexOf(e.Link)].Visited = true;
string target = e.Link.LinkData as string;
if (null != target)
{
System.Diagnostics.Process.Start(target);
}
else
{
MessageBox.Show("请用浏览器访问：" + target);
}
}
private void Form1_Resize(object sender, EventArgs e)
{
if (this.WindowState == FormWindowState.Maximized) this.WindowState = FormWindowState.Normal;
}
private void button3_MouseDown(object sender, MouseEventArgs e)
{
if (txtFileName.Text.Trim() != "" && txtServerPath.Text.Trim() != "")
label1.Text = "正在上传文件，请稍侯……！";
}
#endregion
作者： Leo_wl
出处： http://www.cnblogs.com/Leo_wl/
本文版权归作者和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。
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