HttpService帮助类，POST方法和Get方法 

  1 public class HttpServiceHelper
  2     {
  3         public static string Post(string xml, string url, int timeout)
  4         {
  5             System.GC.Collect();//垃圾回收，回收没有正常关闭的http连接
  6             string result = "";//返回结果
  7             HttpWebRequest request = null;
  8             HttpWebResponse response = null;
  9             Stream reqStream = null;
 10 
 11             try
 12             {
 13                 //设置最大连接数
 14                 ServicePointManager.DefaultConnectionLimit = 200;
 15                 request = (HttpWebRequest)WebRequest.Create(url);
 16 
 17                 request.Method = "POST";
 18                 request.Timeout = timeout * 1000;
 19 
 20                 //设置POST的数据类型和长度
 21                 request.ContentType = "application/json";
 22                 byte[] data = System.Text.Encoding.UTF8.GetBytes(xml);
 23                 request.ContentLength = data.Length;
 24                 //往服务器写入数据
 25                 reqStream = request.GetRequestStream();
 26                 reqStream.Write(data, 0, data.Length);
 27                 reqStream.Close();
 28 
 29                 //获取服务端返回
 30                 response = (HttpWebResponse)request.GetResponse();
 31 
 32                 //获取服务端返回数据
 33                 StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
 34                 result = sr.ReadToEnd().Trim();
 35                 sr.Close();
 36             }
 37             catch (Exception ex)
 38             {
 39                 return ex.Message.ToString();
 40             }
 41             finally
 42             {
 43                 //关闭连接和流
 44                 if (response != null)
 45                 {
 46                     response.Close();
 47                 }
 48                 if (request != null)
 49                 {
 50                     request.Abort();
 51                 }
 52             }
 53             return result;
 54         }
 55 
 56         /// <summary>
 57         /// 处理http GET请求，返回数据
 58         /// </summary>
 59         /// <param name="url">请求的url地址</param>
 60         /// <returns>http GET成功后返回的数据，失败抛WebException异常</returns>
 61         public static string Get(string url)
 62         {
 63             System.GC.Collect();
 64             string result = "";
 65 
 66             HttpWebRequest request = null;
 67             HttpWebResponse response = null;
 68 
 69             //请求url以获取数据
 70             try
 71             {
 72                 //设置最大连接数
 73                 ServicePointManager.DefaultConnectionLimit = 200;
 74 
 75                 request = (HttpWebRequest)WebRequest.Create(url);
 76 
 77                 request.Method = "GET";               
 78                 //获取服务器返回
 79                 response = (HttpWebResponse)request.GetResponse();
 80 
 81                 //获取HTTP返回数据
 82                 StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
 83                 result = sr.ReadToEnd().Trim();
 84                 sr.Close();
 85             }
 86             catch (Exception ex)
 87             {
 88                 return ex.Message.ToString();
 89             }
 90             finally
 91             {
 92                 //关闭连接和流
 93                 if (response != null)
 94                 {
 95                     response.Close();
 96                 }
 97                 if (request != null)
 98                 {
 99                     request.Abort();
100                 }
101             }
102             return result;
103         }
104     }

 

posted @ 2022-07-07 13:50  进击的黑大帅  阅读(198)  评论(0)    收藏  举报