C# SYSTEM.NET命名空间之WebRequest类和WebResponse类

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Threading.Tasks;
 9 using System.Windows.Forms;
10 using System.Net;
11 using System.IO;
12
13 namespace WindowsFormsApplication3
14 {
15     public partial class Form1 : Form
16     {
17         public Form1()
18         {
19             InitializeComponent();
20         }
21
22         private void button1_Click(object sender, EventArgs e)
23         {
24             richTextBox1.Text = string.Empty;
25             WebRequest webrequest = WebRequest.Create(textBox1.Text);
26             webrequest.Credentials = CredentialCache.DefaultCredentials;
27             richTextBox1.Text = "对象数据的内容长度： " + webrequest.ContentLength;
28             richTextBox1.Text += "\n该请求的协议方法： " + webrequest.Method;
29             richTextBox1.Text += "\n访问Internet的网络代理： " + webrequest.Proxy;
30             richTextBox1.Text += "\n与该请求关联的InternetURI： " + webrequest.RequestUri;
31             richTextBox1.Text += "\n超时时间： " + webrequest.Timeout;
32             WebResponse webresponse = webrequest.GetResponse();
33             richTextBox1.Text += "\n响应该请求的Internet URI: " + webresponse.ResponseUri;
34             Stream stream = webresponse.GetResponseStream();
35             StreamReader sreader = new StreamReader(stream);
36             richTextBox1.Text += "\n" + sreader.ReadToEnd();
37             sreader.Close();
38             stream.Close();
39             webresponse.Close();
40         }
41     }
42 }