第C#后臺調(diào)用WebApi接口的實(shí)現(xiàn)方法目錄1.WebRequest方式2.HttpClient方式

1.WebRequest方式

privatevoidbutton1_Click(objectsender,EventArgse)

{

stringss=HttpPost("http://localhost:41558/api/Demo/PostXXX","{Code:\"test089\",Name:\"test1\"}");

}

publicstaticstringHttpPost(stringurl,stringbody)

{

//ServicePointManager.ServerCertificateValidationCallback=newRemoteCertificateValidationCallback(CheckValidationResult);

Encodingencoding=Encoding.UTF8;

HttpWebRequestrequest=(HttpWebRequest)WebRequest.Create(url);

request.Method="POST";

request.Accept="text/html,application/xhtml+xml,*/*";

request.ContentType="application/json";

byte[]buffer=encoding.GetBytes(body);

request.ContentLength=buffer.Length;

request.GetRequestStream().Write(buffer,0,buffer.Length);

HttpWebResponseresponse=(HttpWebResponse)request.GetResponse();

using(StreamReaderreader=newStreamReader(response.GetResponseStream(),Encoding.UTF8))

{

returnreader.ReadToEnd();

}

}

Get：

privatevoidbutton1_Click(objectsender,EventArgse)

{

stringss=HttpGet("http://localhost:41558/api/Demo/GetXXXName=北京");

}

publicstaticstringHttpGet(stringurl)

{

//ServicePointManager.ServerCertificateValidationCallback=newRemoteCertificateValidationCallback(CheckValidationResult);

Encodingencoding=Encoding.UTF8;

HttpWebRequestrequest=(HttpWebRequest)WebRequest.Create(url);

request.Method="GET";

request.Accept="text/html,application/xhtml+xml,*/*";

request.ContentType="application/json";

HttpWebResponseresponse=(HttpWebResponse)request.GetResponse();

using(StreamReaderreader=newStreamReader(response.GetResponseStream(),Encoding.UTF8))

{

returnreader.ReadToEnd();

}

}

2.HttpClient方式

Post:

privateasyncvoidbutton2_Click(objectsender,EventArgse)

HttpClientclient=newHttpClient();

//由HttpClient發(fā)出DeleteMethod

HttpResponseMessageresponse=awaitclient.DeleteAsync("http://localhost:41558/api/Demo"+"/1");

if(response.IsSuccessStatusCode)

MessageBox.Show("成功");

privateasyncvoidbutton3_Click(objectsender,EventArgse)

//創(chuàng)建一個處理序列化的DataContractJsonSerializer

DataContractJsonSerializerserializer=newDataContractJsonSerializer(typeof(People));

MemoryStreamms=newMemoryStream();

//將資料寫入MemoryStream

serializer.WriteObject(ms,newPeople(){Id=1,Name="Helloni"});

//一定要在這設(shè)定Position

ms.Position=0;

HttpContentcontent=newStreamContent(ms);//將MemoryStream轉(zhuǎn)成HttpContent

content.Headers.ContentType=newSystem.Net.Http.Headers.MediaTypeHeaderValue("application/json");

HttpClientclient=newHttpClient();

//由HttpClient發(fā)出PutMethod

HttpResponseMessageresponse=awaitclient.PutAsync("http://localhost:41558/api/Demo"+"/1",content);

if(response.IsSuccessStatusCode)

MessageBox.Show("成功");

}

Get:

using(WebClientclient=newWebClient())

client.Headers["Type"]="GET";

client.Headers["Accept"]="application/json";