当前文件路径：AJAXGetWeather/Core/ValidateOnline.cs

		            
 1using System;
 2using System.Collections.Generic;
 3using System.Text;
 4using System.Net;
 5
 6namespace Core
 7...{
 8    public class ValidateOnline
 9    ...{
10        public bool IsValidateOnline()
11        ...{
12            try
13            ...{
14                Uri MyUri = new Uri("Http://www.qq.com");
15
16                WebRequest wb = WebRequest.Create(MyUri);
17
18                wb.Proxy = new System.Net.WebProxy();
19
20                WebResponse wsp = wb.GetResponse();
21
22                return true;
23            }
24            catch (Exception ex)
25            ...{
26                return false;
27            }
28        }
29    }
30}
31