using System;
using System.IO;
using System.Net;
using System.Text;
public enum HttpVerb
{
GET, //method 常用的就這幾樣,當然你也可以添加其他的 get:獲取 post:修改 put:寫入 delete:刪除
POST,
PUT,
DELETE
}
namespace HttpUtils
{
public class RestClient
{
public string EndPoint { get; set; } //請求的url地址 eg: http://215.23.12.45:8080/order/order_id=1&isdel=0
public HttpVerb Method { get; set; } //請求的方法
public string ContentType { get; set; } //格式類型:我用的是application/json,text/xml具體使用什麼,看需求吧
public string PostData { get; set; } //傳送的數據,當然了我使用的是json字符串
public RestClient()
{
EndPoint = "";
Method = HttpVerb.GET;
ContentType = "application/json";
PostData = "";
}
public RestClient(string endpoint)
{
EndPoint = endpoint;
Method = HttpVerb.GET;
ContentType = "application/json";
PostData = "";
}
public RestClient(string endpoint, HttpVerb method)
{
EndPoint = endpoint;
Method = method;
ContentType = "application/json";
PostData = "";
}
public RestClient(string endpoint, HttpVerb method, string postData)
{
EndPoint = endpoint;
Method = method;
ContentType = "application/json";
PostData = postData;
}
public string MakeRequest()
{
return MakeRequest("");
}
public string MakeRequest(string parameters)
{
var request = (HttpWebRequest)WebRequest.Create(EndPoint + parameters);
request.Method = Method.ToString();
request.ContentLength = 0;
request.ContentType = ContentType;
if (!string.IsNullOrEmpty(PostData) && Method == HttpVerb.POST)//如果傳送的數據不爲空,並且方法是post
{
var encoding = new UTF8Encoding();
var bytes = Encoding.GetEncoding("iso-8859-1").GetBytes(PostData);//編碼方式按自己需求進行更改,我在項目中使用的是UTF-8
request.ContentLength = bytes.Length;
using (var writeStream = request.GetRequestStream())
{
writeStream.Write(bytes, 0, bytes.Length);
}
}
if (!string.IsNullOrEmpty(PostData) && Method == HttpVerb.PUT)//如果傳送的數據不爲空,並且方法是put
{
var encoding = new UTF8Encoding();
var bytes = Encoding.GetEncoding("iso-8859-1").GetBytes(PostData);//編碼方式按自己需求進行更改,我在項目中使用的是UTF-8
request.ContentLength = bytes.Length;
using (var writeStream = request.GetRequestStream())
{
writeStream.Write(bytes, 0, bytes.Length);
}
}
using (var response = (HttpWebResponse)request.GetResponse())
{
var responseValue = string.Empty;
if (response.StatusCode != HttpStatusCode.OK)
{
var message = String.Format("Request failed. Received HTTP {0}", response.StatusCode);
throw new ApplicationException(message);
}
// grab the response
using (var responseStream = response.GetResponseStream())
{
if (responseStream != null)
using (var reader = new StreamReader(responseStream))
{
responseValue = reader.ReadToEnd();
}
}
return responseValue;
}
}
} // class
}
1,基本的調用:
var client = new RestClient();
string endPoint = @"http:\\myRestService.com\api\";
var client = new RestClient(endPoint);
var json = client.MakeRequest();
2,如果你想帶入參數
var json = client.MakeRequest("?param=0");
3,使用最多的方式
var client = new RestClient();
client.EndPoint = @"http:\\myRestService.com\api\"; ;
client.ContentType = "application/json";
client.Method = HttpVerb.POST;
client.PostData = "{postData: value}";
var json = client.MakeRequest();
一般情況,MakeRequest返回的json格式的字符串(不排除有的接口開發商返回xml,html),我們可以把他轉化爲json對象,然後通過C#代碼操控json對象,就會方便的很。當然jquery也很方便。