c# HttpWebResponse 调用WebApi
新建WebApiCaller类，内容如下：
1 public static class WebApiCaller 2 { 3 public static string HttpPost(string url, string body) 4 { 5 try 6 { 7 //ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); 8 Encoding encoding = Encoding.UTF8; 9 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); 10 request.Method = "POST"; 11 request.Accept = "application/json, text/javascript, */*"; //"text/html, application/xhtml+xml, */*"; 12 request.ContentType = "application/json; charset=utf-8"; 13 14 byte[] buffer = encoding.GetBytes(body); 15 request.ContentLength = buffer.Length; 16 request.GetRequestStream().Write(buffer, 0, buffer.Length); 17 HttpWebResponse response = (HttpWebResponse)request.GetResponse(); 18 using (StreamReader reader = new StreamReader(response.GetResponseStream(), encoding)) 19 { 20 return reader.ReadToEnd(); 21 } 22 } 23 catch (WebException ex) 24 { 25 var res = (HttpWebResponse)ex.Response; 26 StringBuilder sb = new StringBuilder(); 27 StreamReader sr = new StreamReader(res.GetResponseStream(), Encoding.UTF8); 28 sb.Append(sr.ReadToEnd()); 29 //string ssb = sb.ToString(); 30 throw new Exception(sb.ToString()); 31 } 32 } 33 34 /// <summary> 35 /// GET Method 36 /// </summary> 37 /// <returns></returns> 38 public static string HttpGet(string url) 39 { 40 HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url); 41 myRequest.Method = "GET"; 42 43 HttpWebResponse myResponse = null; 44 try 45 { 46 myResponse = (HttpWebResponse)myRequest.GetResponse(); 47 StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8); 48 string content = reader.ReadToEnd(); 49 return content; 50 } 51 //异常请求 52 catch (WebException e) 53 { 54 myResponse = (HttpWebResponse)e.Response; 55 using (Stream errData = myResponse.GetResponseStream()) 56 { 57 using (StreamReader reader = new StreamReader(errData)) 58 { 59 string text = reader.ReadToEnd(); 60 61 return text; 62 } 63 } 64 } 65 } 66 }
用法：
string result = WebApiCaller.HttpPost("http://localhost:8082/api/Patient/SavePatient", jsonString); string result1 = WebApiCaller.HttpGet("http://localhost:8080/api/Patient/GetPatientInfoById?Id=55");
