如何調用外部的Web API，調用WebAPI

如何調用外部的Web API，調用WebAPI

1. Uri uri = new Uri(url + "?" + postData);  
2.             System.Net.HttpWebRequest request = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(uri);  
3.             request.Method = "GET";  
4.             request.ContentType = "application/x-www-form-urlencoded";  
5.             request.AllowAutoRedirect = false;  
6.             request.Timeout = 5000;  
7.             System.Net.HttpWebResponse response = (System.Net.HttpWebResponse)request.GetResponse();  
8.             Stream responseStream = response.GetResponseStream();  
9.             StreamReader readStream = new StreamReader(responseStream, System.Text.Encoding.UTF8);  
10.             string retext = readStream.ReadToEnd().ToString();  
11.             readStream.Close();  
12.             return retext;  
13.   
14. }