查看本机开放的端口代码,CSharp代码库,德仔网

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【CSharp】查看本机开放的端口
作者:Dezai.CN / 发布于2011/6/6/ 525
本机开放的端口
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<div><span style="color: rgb(0,0,255)">using</span><span style="color: rgb(0,0,0)"> System.Diagnostics;
</span><span style="color: rgb(0,0,255)">using</span><span style="color: rgb(0,0,0)"> System.Text.RegularExpressions;

 </span><span style="color: rgb(0,0,255)">private</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">void</span><span style="color: rgb(0,0,0)"> ShowPort_Click(</span><span style="color: rgb(0,0,255)">object</span><span style="color: rgb(0,0,0)"> sender, EventArgs e)
 {
 StringBuilder str1 </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> StringBuilder();</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">用于存储截获DOS控制台的输出流</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> []str2</span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)">[</span><span style="color: rgb(128,0,128)">2000</span><span style="color: rgb(0,0,0)">];</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">存储端口号</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> Process p </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> Process();
p.StartInfo.FileName </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">cmd.exe</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">;
 p.StartInfo.RedirectStandardInput </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">true</span><span style="color: rgb(0,0,0)">;
p.StartInfo.RedirectStandardOutput </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">true</span><span style="color: rgb(0,0,0)">;
 p.StartInfo.RedirectStandardError </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">true</span><span style="color: rgb(0,0,0)">;
 p.StartInfo.CreateNoWindow </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">true</span><span style="color: rgb(0,0,0)">;
 p.StartInfo.UseShellExecute </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">false</span><span style="color: rgb(0,0,0)">;
 p.Start();
 p.StandardInput.WriteLine(</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">netstat -an</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">);
 p.StandardInput.WriteLine(</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">exit</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">);
</span><span style="color: rgb(0,0,0)"> str1.AppendLine(p.StandardOutput.ReadToEnd()) ;
 p.Close(); </span></div>
<div><span style="color: rgb(0,0,0)"> Regex rx </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> Regex(</span><span style="color: rgb(128,0,0)">@"</span><span style="color: rgb(128,0,0)">(:{1}\d+)</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">);</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">用正则表达式筛选端口号,即":"号后面全是</span></div>
<div><span style="color: rgb(0,0,0)"> MatchCollection mc </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> rx.Matches(str1.ToString());</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">得到一个前缀带":"端口号的的数组</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> Pcount </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">;</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">记录有效端口号个数</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">for</span><span style="color: rgb(0,0,0)"> (</span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> i </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">; i </span><span style="color: rgb(0,0,0)"><</span><span style="color: rgb(0,0,0)"> mc.Count; i</span><span style="color: rgb(0,0,0)">++</span><span style="color: rgb(0,0,0)">)
 {
 </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> temp </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">""</span><span style="color: rgb(0,0,0)">;
 temp </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> mc[i].ToString();
 </span><span style="color: rgb(0,0,255)">if</span><span style="color: rgb(0,0,0)"> (check(str2, temp.Remove(</span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(128,0,128)">1</span><span style="color: rgb(0,0,0)">)))</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">判断是否已存在的端口</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> {
 str2[Pcount</span><span style="color: rgb(0,0,0)">++</span><span style="color: rgb(0,0,0)">] </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> temp.Remove(</span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(128,0,128)">1</span><span style="color: rgb(0,0,0)">);</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">去掉前缀":"</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> }
 }
 </span><span style="color: rgb(0,0,255)">for</span><span style="color: rgb(0,0,0)"> (</span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> i </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">; i </span><span style="color: rgb(0,0,0)"><</span><span style="color: rgb(0,0,0)"> Pcount; i</span><span style="color: rgb(0,0,0)">++</span><span style="color: rgb(0,0,0)">)
 {
 comboBox1.Items.Add(str2[i]);</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">用一个comBox加载显示</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> }
 }

 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">static</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">bool</span><span style="color: rgb(0,0,0)"> check(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)">[] source, </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> checker)</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">检查是否有相同端口号</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> {
 </span><span style="color: rgb(0,0,255)">for</span><span style="color: rgb(0,0,0)"> (</span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> i </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">; i </span><span style="color: rgb(0,0,0)"><</span><span style="color: rgb(0,0,0)"> source.Length; i</span><span style="color: rgb(0,0,0)">++</span><span style="color: rgb(0,0,0)">)
 {
 </span><span style="color: rgb(0,0,255)">if</span><span style="color: rgb(0,0,0)"> (checker </span><span style="color: rgb(0,0,0)">==</span><span style="color: rgb(0,0,0)"> source[i])
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">false</span><span style="color: rgb(0,0,0)">;
 }
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">true</span><span style="color: rgb(0,0,0)">;
 }</span></div>
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