using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
// 添加新的命名空间。
using System.Net;
using System.IO;

namespace Proxy
{
/// <summary>
/// 使用代理服务器。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.RichTextBox richTextBox1;
/// <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 );
}

#region Windows Form Designer generated code
/// <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.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.richTextBox1 = new System.Windows.Forms.RichTextBox();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(120, 8);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(56, 23);
this.button1.TabIndex = 2;
this.button1.Text = "默认";
this.button1.TextAlign = System.Drawing.ContentAlignment.TopCenter;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(232, 8);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(56, 23);
this.button2.TabIndex = 3;
this.button2.Text = "专门";
this.button2.TextAlign = System.Drawing.ContentAlignment.TopCenter;
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// richTextBox1
//
this.richTextBox1.Dock = System.Windows.Forms.DockStyle.Bottom;
this.richTextBox1.Location = new System.Drawing.Point(0, 40);
this.richTextBox1.Name = "richTextBox1";
this.richTextBox1.ScrollBars = System.Windows.Forms.RichTextBoxScrollBars.ForcedBoth;
this.richTextBox1.Size = new System.Drawing.Size(408, 256);
this.richTextBox1.TabIndex = 4;
this.richTextBox1.Text = "";
this.richTextBox1.WordWrap = false;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(8, 18);
this.ClientSize = new System.Drawing.Size(408, 296);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.richTextBox1,
this.button2,
this.button1});
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
this.MaximizeBox = false;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "Proxy";
this.ResumeLayout(false);

}
#endregion

/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
// 定义私有变量。
public HttpWebRequest req;
public HttpWebResponse res;
public WebProxy proxy;
public Stream s;
public StreamReader r;
// 使用默认代理。
private void button1_Click(object sender, System.EventArgs e)
{
button1.Enabled = false;
proxy = new WebProxy("http://127.0.0.1:8888", true);
GlobalProxySelection.Select = proxy;
req = (HttpWebRequest)WebRequest.Create("http://www.microsoft.com");
res = (HttpWebResponse)req.GetResponse();
s = res.GetResponseStream();
r = new StreamReader(s);
richTextBox1.Text = r.ReadToEnd();
r.Close();
s.Close();
res.Close();
button1.Enabled = true;
}
// 使用专门代理。
private void button2_Click(object sender, System.EventArgs e)
{
button2.Enabled = false;
proxy = new WebProxy("http://127.0.0.1:8887", true);
req = (HttpWebRequest)WebRequest.Create("http://www.microsoft.com");
req.Proxy = proxy;
res = (HttpWebResponse)req.GetResponse();
s = res.GetResponseStream();
r = new StreamReader(s);
richTextBox1.Text = r.ReadToEnd();
r.Close();
s.Close();
res.Close();
button2.Enabled = true;
}
}
}