如题,如何在WinForm下实现对远端服务器上文件的上传下载?
望高手们不吝赐教。

解决方案 »

  1.   

    怎么个远法?局域网的话共享路径就可以访问,否则的话ftp吧。
      

  2.   

    简单点儿,你可以使用webclient或者httpwebrequest来完成,
    上传
    uploadFileEx: C#'s webclient.uploadFile with more functionality 
    http://www.codeproject.com/csharp/uploadfileex.asp下载
    An easy to use URL file downloader class for .NET
    http://www.codeproject.com/useritems/filedownloader.asp复杂点儿,你可以通过socket来完成ftp上传和下载。
      

  3.   

    我刚刚做了一个局域网内部互发消息的服务器和客户端利用SOCKET和TCP做的,已经成功了.
    不知道对你有没有帮助,如有的话给我消息:)现在在尝试做一个在客房端用动态数据交换进行处理,我也在向别人请教这个问题:)
      

  4.   

    如果文件比较大的话,最好用socket来处理,否则用webclient/webrequest处理即时可,前提是远端服务器需要是一个web服务器。
      

  5.   

    using System;
    using System.Drawing;
    using System.Collections;
    using System.ComponentModel;
    using System.Windows.Forms;
    using System.Data;
    using System.Net;
    namespace Network
    {
    /// <summary>
    /// Form1 的摘要说明。
    /// </summary>
    public class Form1 : System.Windows.Forms.Form
    {
    private System.Windows.Forms.GroupBox groupBox1;
    private System.Windows.Forms.TextBox textBox2;
    private System.Windows.Forms.Label label2;
    private System.Windows.Forms.TextBox textBox1;
    private System.Windows.Forms.Label label1;
    private System.Windows.Forms.Button button1;
    private System.Windows.Forms.Button button2;
    private System.Windows.Forms.GroupBox groupBox2;
    private System.Windows.Forms.Button button3;
    private System.Windows.Forms.Button button4;
    private System.Windows.Forms.TextBox textBox3;
    private System.Windows.Forms.Label label3;
    private System.Windows.Forms.TextBox textBox4;
    private System.Windows.Forms.Label label4;
    private System.Windows.Forms.OpenFileDialog openFileDialog1;
    private System.Windows.Forms.SaveFileDialog saveFileDialog1;
    /// <summary>
    /// 必需的设计器变量。
    /// </summary>
    private System.ComponentModel.Container components = null; public Form1()
    {
    //
    // Windows 窗体设计器支持所必需的
    //
    InitializeComponent(); //
    // TODO: 在 InitializeComponent 调用后添加任何构造函数代码
    //
    } /// <summary>
    /// 清理所有正在使用的资源。
    /// </summary>
    protected override void Dispose( bool disposing )
    {
    if( disposing )
    {
    if (components != null) 
    {
    components.Dispose();
    }
    }
    base.Dispose( disposing );
    }
      

  6.   

    #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.groupBox1 = new System.Windows.Forms.GroupBox();
    this.textBox2 = new System.Windows.Forms.TextBox();
    this.label2 = new System.Windows.Forms.Label();
    this.textBox1 = new System.Windows.Forms.TextBox();
    this.label1 = new System.Windows.Forms.Label();
    this.button1 = new System.Windows.Forms.Button();
    this.button2 = new System.Windows.Forms.Button();
    this.groupBox2 = new System.Windows.Forms.GroupBox();
    this.button3 = new System.Windows.Forms.Button();
    this.button4 = new System.Windows.Forms.Button();
    this.textBox3 = new System.Windows.Forms.TextBox();
    this.label3 = new System.Windows.Forms.Label();
    this.textBox4 = new System.Windows.Forms.TextBox();
    this.label4 = new System.Windows.Forms.Label();
    this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
    this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
    this.groupBox1.SuspendLayout();
    this.groupBox2.SuspendLayout();
    this.SuspendLayout();
    // 
    // groupBox1
    // 
    this.groupBox1.Controls.Add(this.button2);
    this.groupBox1.Controls.Add(this.button1);
    this.groupBox1.Controls.Add(this.textBox2);
    this.groupBox1.Controls.Add(this.label2);
    this.groupBox1.Controls.Add(this.textBox1);
    this.groupBox1.Controls.Add(this.label1);
    this.groupBox1.Location = new System.Drawing.Point(8, 8);
    this.groupBox1.Name = "groupBox1";
    this.groupBox1.Size = new System.Drawing.Size(328, 120);
    this.groupBox1.TabIndex = 0;
    this.groupBox1.TabStop = false;
    this.groupBox1.Text = "下载文件";
    // 
    // textBox2
    // 
    this.textBox2.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
    this.textBox2.Location = new System.Drawing.Point(16, 88);
    this.textBox2.Name = "textBox2";
    this.textBox2.Size = new System.Drawing.Size(296, 21);
    this.textBox2.TabIndex = 7;
    this.textBox2.Text = "";
    // 
    // label2
    // 
    this.label2.Location = new System.Drawing.Point(16, 64);
    this.label2.Name = "label2";
    this.label2.Size = new System.Drawing.Size(72, 16);
    this.label2.TabIndex = 6;
    this.label2.Text = "下载网址:";
    // 
    // textBox1
    // 
    this.textBox1.Location = new System.Drawing.Point(16, 40);
    this.textBox1.Name = "textBox1";
    this.textBox1.Size = new System.Drawing.Size(296, 21);
    this.textBox1.TabIndex = 5;
    this.textBox1.Text = "";
    // 
    // label1
    // 
    this.label1.Location = new System.Drawing.Point(16, 24);
    this.label1.Name = "label1";
    this.label1.Size = new System.Drawing.Size(80, 16);
    this.label1.TabIndex = 4;
    this.label1.Text = "保存文件名:";
    // 
    // button1
    // 
    this.button1.Location = new System.Drawing.Point(232, 16);
    this.button1.Name = "button1";
    this.button1.Size = new System.Drawing.Size(80, 23);
    this.button1.TabIndex = 8;
    this.button1.Text = "浏览";
    this.button1.Click += new System.EventHandler(this.button1_Click_1);
    // 
    // button2
    // 
    this.button2.Location = new System.Drawing.Point(232, 64);
    this.button2.Name = "button2";
    this.button2.Size = new System.Drawing.Size(80, 23);
    this.button2.TabIndex = 9;
    this.button2.Text = "下载";
    this.button2.Click += new System.EventHandler(this.button2_Click);
    // 
    // groupBox2
    // 
    this.groupBox2.Controls.Add(this.button3);
    this.groupBox2.Controls.Add(this.button4);
    this.groupBox2.Controls.Add(this.textBox3);
    this.groupBox2.Controls.Add(this.label3);
    this.groupBox2.Controls.Add(this.textBox4);
    this.groupBox2.Controls.Add(this.label4);
    this.groupBox2.Location = new System.Drawing.Point(8, 136);
    this.groupBox2.Name = "groupBox2";
    this.groupBox2.Size = new System.Drawing.Size(328, 120);
    this.groupBox2.TabIndex = 1;
    this.groupBox2.TabStop = false;
    this.groupBox2.Text = "上载文件";
    // 
    // button3
    // 
    this.button3.Location = new System.Drawing.Point(232, 64);
    this.button3.Name = "button3";
    this.button3.Size = new System.Drawing.Size(80, 23);
    this.button3.TabIndex = 9;
    this.button3.Text = "上载";
    this.button3.Click += new System.EventHandler(this.button3_Click);
    // 
    // button4
    // 
    this.button4.Location = new System.Drawing.Point(232, 16);
    this.button4.Name = "button4";
    this.button4.Size = new System.Drawing.Size(80, 23);
    this.button4.TabIndex = 8;
    this.button4.Text = "浏览";
    this.button4.Click += new System.EventHandler(this.button4_Click);
    // 
    // textBox3
    // 
    this.textBox3.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
    this.textBox3.Location = new System.Drawing.Point(16, 40);
    this.textBox3.Name = "textBox3";
    this.textBox3.Size = new System.Drawing.Size(296, 21);
    this.textBox3.TabIndex = 7;
    this.textBox3.Text = "";
    // 
    // label3
    // 
    this.label3.Location = new System.Drawing.Point(16, 64);
    this.label3.Name = "label3";
    this.label3.Size = new System.Drawing.Size(72, 16);
    this.label3.TabIndex = 6;
    this.label3.Text = "上载网址:";
    // 
    // textBox4
    // 
    this.textBox4.Location = new System.Drawing.Point(16, 88);
    this.textBox4.Name = "textBox4";
    this.textBox4.Size = new System.Drawing.Size(296, 21);
    this.textBox4.TabIndex = 5;
    this.textBox4.Text = "";
    // 
    // label4
    // 
    this.label4.Location = new System.Drawing.Point(16, 24);
    this.label4.Name = "label4";
    this.label4.Size = new System.Drawing.Size(80, 16);
    this.label4.TabIndex = 4;
    this.label4.Text = "上载文件名:";
    // 
    // Form1
    // 
    this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
    this.ClientSize = new System.Drawing.Size(344, 262);
    this.Controls.Add(this.groupBox2);
    this.Controls.Add(this.groupBox1);
    this.MaximizeBox = false;
    this.Name = "Form1";
    this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
    this.Text = "演示上下载文件";
    this.groupBox1.ResumeLayout(false);
    this.groupBox2.ResumeLayout(false);
    this.ResumeLayout(false); }
    #endregion
      

  7.   

    /// <summary>
    /// 应用程序的主入口点。
    /// </summary>
    [STAThread]
    static void Main() 
    {
    Application.Run(new Form1());
    }
    private void button1_Click_1(object sender, System.EventArgs e)
    {//浏览保存文件
    if(this.saveFileDialog1.ShowDialog()==DialogResult.OK)
    {
    this.textBox1.Text=this.saveFileDialog1.FileName;
    }
    }
    private void button4_Click(object sender, System.EventArgs e)
    {//浏览上载文件
    if(this.openFileDialog1.ShowDialog()==DialogResult.OK)
    {
    this.textBox3.Text=this.openFileDialog1.FileName;
    }
    } private void button2_Click(object sender, System.EventArgs e)
    {//下载文件
    if(this.textBox1.Text==""|this.textBox2.Text=="")
    return;
    WebClient MyClient=new WebClient();
    string URL=this.textBox2.Text;
    string SaveFileName=this.textBox1.Text;
    try
    {
    MyClient.DownloadFile(URL , SaveFileName);
    MessageBox.Show("文件下载成功!","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
    }
    catch(Exception Err)
    {
    MessageBox.Show("文件下载失败!错误是:"+Err.Message,"信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
    }
    } private void button3_Click(object sender, System.EventArgs e)
    {//上载文件
    if(this.textBox3.Text==""|this.textBox4.Text=="")
    return;
    WebClient MyClient=new WebClient();
    string URL=this.textBox3.Text;
    string FileName=this.textBox4.Text;
    byte[] MyResponseArray=null;
    try
    {
    MyResponseArray = MyClient.UploadFile(URL,FileName);
    MessageBox.Show("文件上载成功!","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
    }
    catch(Exception Err)
    {
    MessageBox.Show("文件上载失败!错误是:"+Err.Message,"信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
    }
    finally
    {
    MessageBox.Show("\n服务器的回复为: \n"+System.Text.Encoding.ASCII.GetString(MyResponseArray));
    }
    }
    }
    }这个不知道行不? CSDN现在不能发长帖子?