Web API后端调用接口 (Get,POST,Put,Delete)

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Threading.Tasks;namespace Edc.Dao
{
public class HttpAPI
{
private const string DefaultUserAgent = "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36";
public string Compleatehtml = "";
private void BugFix_CookieDomain(CookieContainer cookieContainer)
{
System.Type _ContainerType = typeof(CookieContainer);
Hashtable table = (Hashtable)_ContainerType.InvokeMember("m_domainTable",
System.Reflection.BindingFlags.NonPublic |
System.Reflection.BindingFlags.GetField |
System.Reflection.BindingFlags.Instance,
null,
cookieContainer,
new object[] { });
ArrayList keys = new ArrayList(table.Keys);
foreach (string keyObj in keys)
{
string key = (keyObj as string);
if (key[0] == '.')
{
string newKey = key.Remove(0, 1);
table[newKey] = table[keyObj];
}
}
} public String DoGet(String url)
{
String html = "";
StreamReader reader = null;
HttpWebRequest webReqst = (HttpWebRequest)WebRequest.Create(url);
webReqst.Method = "GET";
webReqst.UserAgent = DefaultUserAgent;
webReqst.KeepAlive = true;
webReqst.CookieContainer = new CookieContainer();
webReqst.Timeout = 30000;
webReqst.ReadWriteTimeout = 30000;
try
{
HttpWebResponse webResponse = (HttpWebResponse)webReqst.GetResponse();
BugFix_CookieDomain(webReqst.CookieContainer);
if (webResponse.StatusCode == HttpStatusCode.OK)//&& webResponse.ContentLength < 1024 * 1024
{
Stream stream = webResponse.GetResponseStream();
stream.ReadTimeout = 30000;
if (webResponse.ContentEncoding == "gzip")
{
reader = new StreamReader(new GZipStream(stream, CompressionMode.Decompress), Encoding.Default);
}
else
{
reader = new StreamReader(stream, Encoding.UTF8);
}
html = reader.ReadToEnd();
}
}
catch (Exception ex)
{
throw ex;
} return html;
} public bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
{
return true; //总是接受
} public void DoPost(String url, String Content)
{
HttpWebRequest webReqst = null;
//如果是发送HTTPS请求
if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
{
ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
webReqst = WebRequest.Create(url) as HttpWebRequest;
webReqst.ProtocolVersion = HttpVersion.Version10;
}
else
{
webReqst = WebRequest.Create(url) as HttpWebRequest;
}
webReqst.Method = "POST";
webReqst.UserAgent = DefaultUserAgent;
webReqst.ContentType = "application/x-www-form-urlencoded";
webReqst.ContentLength = Content.Length;
webReqst.CookieContainer = new CookieContainer();
webReqst.Timeout = 30000;
webReqst.ReadWriteTimeout = 30000;
try
{
//System.Text.Encoding encoding = System.Text.Encoding.GetEncoding("gb2312");
byte[] data = Encoding.UTF8.GetBytes(Content);
webReqst.ContentLength = data.Length;
Stream stream = webReqst.GetRequestStream();
stream.Write(data, 0, data.Length); webReqst.BeginGetRequestStream(new AsyncCallback(Compleate), webReqst);
}
catch (Exception ex)
{
throw ex;
}
} private void Compleate(IAsyncResult asyncResult)
{
//Console.WriteLine("异步完成");
if (asyncResult == null)
{
return;
}
HttpWebRequest req = (asyncResult.AsyncState as HttpWebRequest);
HttpWebResponse res = req.GetResponse() as HttpWebResponse;
StreamReader reader = new StreamReader(res.GetResponseStream());
var html = reader.ReadToEnd();
//Console.WriteLine(reader.ReadToEnd());
Compleatehtml = html;
} public static string str;
public static HttpWebRequest request;
public string DoDelete(String url)
{
string urlPath = url;
//urlPath = urlPath + id;
int millisecond = 30000;
WebResponse response = null;
StreamReader reader = null;
try
{
request = (HttpWebRequest)WebRequest.Create(urlPath);
//request.Proxy = null;//关闭代理（重要）
request.Timeout = millisecond;
request.Method = "DELETE";
//request.Accept = "application/json";
//request.ContentType = "application/json";
request.ServicePoint.Expect100Continue = false;
response = (WebResponse)request.GetResponse();
reader = new StreamReader(response.GetResponseStream());
str = reader.ReadToEnd();
}
catch (Exception ex)
{ str = "";
}
return str;
}
public void DoPut(String url, String Content)
{ HttpWebRequest webReqst = null;
//如果是发送HTTPS请求
if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
{
ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
webReqst = WebRequest.Create(url) as HttpWebRequest;
webReqst.ProtocolVersion = HttpVersion.Version10;
}
else
{
webReqst = WebRequest.Create(url) as HttpWebRequest;
}
webReqst.Method = "PUT";
webReqst.UserAgent = DefaultUserAgent;
webReqst.ContentType = "application/x-www-form-urlencoded";
webReqst.ContentLength = Content.Length;
webReqst.CookieContainer = new CookieContainer();
webReqst.Timeout = 30000;
webReqst.ReadWriteTimeout = 30000;
try
{
//System.Text.Encoding encoding = System.Text.Encoding.GetEncoding("gb2312");
byte[] data = Encoding.UTF8.GetBytes(Content);
webReqst.ContentLength = data.Length;
Stream stream = webReqst.GetRequestStream();
stream.Write(data, 0, data.Length); webReqst.BeginGetRequestStream(new AsyncCallback(Compleate), webReqst);
}
catch
{ }
} }
}