扫描端口的简单实现方法

时间：2010年04月12日 点击：99

using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

using System.Data;

using System.Net.Sockets;

namespace PortCheck

{

/// <summary>

/// Form1 的摘要说明。

/// </summary>

public class Form1 : System.Windows.Forms.Form

{

private System.Windows.Forms.Label label1;

private System.Windows.Forms.TextBox textBox1;

private System.Windows.Forms.Label label2;

private System.Windows.Forms.NumericUpDown numericUpDown1;

private System.Windows.Forms.Label label3;

private System.Windows.Forms.NumericUpDown numericUpDown2;

private System.Windows.Forms.Button button1;

private System.Windows.Forms.RichTextBox richTextBox1;

private System.Windows.Forms.ProgressBar progressBar1;

/// <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 );

}

Windows 窗体设计器生成的代码#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.label1 = new System.Windows.Forms.Label();

this.textBox1 = new System.Windows.Forms.TextBox();

this.label2 = new System.Windows.Forms.Label();

this.numericUpDown1 = new System.Windows.Forms.NumericUpDown();

this.label3 = new System.Windows.Forms.Label();

this.numericUpDown2 = new System.Windows.Forms.NumericUpDown();

this.button1 = new System.Windows.Forms.Button();

this.richTextBox1 = new System.Windows.Forms.RichTextBox();

this.progressBar1 = new System.Windows.Forms.ProgressBar();

((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).BeginInit();

((System.ComponentModel.ISupportInitialize)(this.numericUpDown2)).BeginInit();

this.SuspendLayout();

// label1

this.label1.Location = new System.Drawing.Point(8, 16);

this.label1.Name = "label1";

this.label1.Size = new System.Drawing.Size(80, 16);

this.label1.TabIndex = 0;

this.label1.Text = "目标主机名：";

// textBox1

this.textBox1.Location = new System.Drawing.Point(88, 8);

this.textBox1.Name = "textBox1";

this.textBox1.Size = new System.Drawing.Size(72, 21);

this.textBox1.TabIndex = 1;

this.textBox1.Text = "127.0.0.1";

// label2

this.label2.Location = new System.Drawing.Point(168, 16);

this.label2.Name = "label2";

this.label2.Size = new System.Drawing.Size(80, 16);

this.label2.TabIndex = 2;

this.label2.Text = "起始端口号：";

// numericUpDown1

this.numericUpDown1.Location = new System.Drawing.Point(248, 8);

this.numericUpDown1.Maximum = new System.Decimal(new int[] {

65536,

0});

this.numericUpDown1.Name = "numericUpDown1";

this.numericUpDown1.Size = new System.Drawing.Size(80, 21);

this.numericUpDown1.TabIndex = 3;

// label3

this.label3.Location = new System.Drawing.Point(8, 40);

this.label3.Name = "label3";

this.label3.Size = new System.Drawing.Size(80, 16);

this.label3.TabIndex = 4;

this.label3.Text = "结束端口号：";

// numericUpDown2

this.numericUpDown2.Location = new System.Drawing.Point(88, 32);

this.numericUpDown2.Maximum = new System.Decimal(new int[] {

65536,

0});

this.numericUpDown2.Name = "numericUpDown2";

this.numericUpDown2.Size = new System.Drawing.Size(72, 21);

this.numericUpDown2.TabIndex = 5;

this.numericUpDown2.Value = new System.Decimal(new int[] {

50,

0});

// button1

this.button1.Location = new System.Drawing.Point(248, 32);

this.button1.Name = "button1";

this.button1.Size = new System.Drawing.Size(80, 23);

this.button1.TabIndex = 6;

this.button1.Text = "开始扫描";

this.button1.Click += new System.EventHandler(this.button1_Click);

// richTextBox1

this.richTextBox1.Location = new System.Drawing.Point(8, 56);

this.richTextBox1.Name = "richTextBox1";

this.richTextBox1.Size = new System.Drawing.Size(320, 168);

this.richTextBox1.TabIndex = 7;

this.richTextBox1.Text = "";

// progressBar1

this.progressBar1.Location = new System.Drawing.Point(8, 224);

this.progressBar1.Name = "progressBar1";

this.progressBar1.Size = new System.Drawing.Size(320, 23);

this.progressBar1.Step = 1;

this.progressBar1.TabIndex = 10;

// Form1

this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);

this.ClientSize = new System.Drawing.Size(336, 254);

this.Controls.Add(this.progressBar1);

this.Controls.Add(this.richTextBox1);

this.Controls.Add(this.button1);

this.Controls.Add(this.numericUpDown2);

this.Controls.Add(this.label3);

this.Controls.Add(this.numericUpDown1);

this.Controls.Add(this.label2);

this.Controls.Add(this.textBox1);

this.Controls.Add(this.label1);

this.MaximizeBox = false;

this.Name = "Form1";

this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;

this.Text = "演示端口扫描";

((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).EndInit();

((System.ComponentModel.ISupportInitialize)(this.numericUpDown2)).EndInit();

this.ResumeLayout(false);

}

#endregion

/// <summary>

/// 应用程序的主入口点。

/// </summary>

[STAThread]

static void Main()

{

Application.Run(new Form1());

}

private void button1_Click(object sender, System.EventArgs e)

{//扫描端口

int iStart=(int)this.numericUpDown1.Value;

int iEnd=(int)this.numericUpDown2.Value;

try

{

this.progressBar1.Minimum=iStart;

this.progressBar1.Maximum=iEnd;

this.richTextBox1.Text="程序开始扫描端口：\n";

this.richTextBox1.Update();

for(int i=iStart ;i<iEnd;i++)

{

this.progressBar1.Value=i;

TcpClient MyTCP=null;

try

{

MyTCP = new TcpClient(this.textBox1.Text,i);

this.richTextBox1.Text+="端口 " + i.ToString() + " 开放!\n";

this.richTextBox1.Update();

}

catch

{

}

this.richTextBox1.Text+="扫描端口结束！\n";

}

catch(Exception Err)

{

MessageBox.Show("扫描端口操作发生错误，错误信息是："+Err.Message,"信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);

}

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