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 }
