【HttpWeb】Post和GET请求基本封装

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Security;
using System.Security.Authentication;
using System.Security.Cryptography.X509Certificates;
using System.IO;

namespace WXMaster.Models
{
public class PostHelp
{
public static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
{
//直接确认，否则打不开
return true;
}

#region 处理http POST请求，返回数据
/// <summary>
/// 处理http POST请求，返回数据
/// </summary>
/// <param name="json">请求参数</param>
/// <param name="url">请求接口地址</param>
/// <param name="isUseCert">是否使用证书</param>
/// <param name="timeout">设置超时时间</param>
/// <returns>http POST成功后返回的数据，失败抛WebException异常</returns>
public static string Post(string json, string url, bool isUseCert, int timeout)
{
System.GC.Collect();//垃圾回收，回收没有正常关闭的http连接

string result = "";//返回结果

HttpWebRequest request = null;
HttpWebResponse response = null;
Stream reqStream = null;

try
{
//设置最大连接数
ServicePointManager.DefaultConnectionLimit = 200;
//设置https验证方式
if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
{
ServicePointManager.ServerCertificateValidationCallback =
new RemoteCertificateValidationCallback(CheckValidationResult);
}

/***************************************************************
* 下面设置HttpWebRequest的相关属性
* ************************************************************/
request = (HttpWebRequest)WebRequest.Create(url);

request.Method = "POST";
request.Timeout = timeout * 1000;

//设置POST的数据类型和长度
request.ContentType = "application/json;charset=UTF-8";
byte[] data = System.Text.Encoding.UTF8.GetBytes(json);
request.ContentLength = data.Length;

//往服务器写入数据
reqStream = request.GetRequestStream();
reqStream.Write(data, 0, data.Length);
reqStream.Close();

//获取服务端返回
response = (HttpWebResponse)request.GetResponse();

//获取服务端返回数据
StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
result = sr.ReadToEnd().Trim();
sr.Close();
}
catch (System.Threading.ThreadAbortException e)
{

System.Threading.Thread.ResetAbort();
}
catch (WebException e)
{

if (e.Status == WebExceptionStatus.ProtocolError)
{

}
}
catch (Exception e)
{

}
finally
{
//关闭连接和流
if (response != null)
{
response.Close();
}
if (request != null)
{
request.Abort();
}
}
return result;
}
#endregion

#region 处理http GET请求，返回数据
/// <summary>
/// 处理http GET请求，返回数据
/// </summary>
/// <param name="url">请求的url地址</param>
/// <returns>http GET成功后返回的数据，失败抛WebException异常</returns>
public static string Get(string url)
{
System.GC.Collect();
string result = "";

HttpWebRequest request = null;
HttpWebResponse response = null;

//请求url以获取数据
try
{
//设置最大连接数
ServicePointManager.DefaultConnectionLimit = 200;
//设置https验证方式
if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
{
ServicePointManager.ServerCertificateValidationCallback =
new RemoteCertificateValidationCallback(CheckValidationResult);
}

/***************************************************************
* 下面设置HttpWebRequest的相关属性
* ************************************************************/
request = (HttpWebRequest)WebRequest.Create(url);

request.Method = "GET";

//获取服务器返回
response = (HttpWebResponse)request.GetResponse();

//获取HTTP返回数据
StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
result = sr.ReadToEnd().Trim();
sr.Close();
}
catch (System.Threading.ThreadAbortException e)
{

System.Threading.Thread.ResetAbort();
}
catch (WebException e)
{

}
catch (Exception e)
{

}
finally
{
//关闭连接和流
if (response != null)
{
response.Close();
}
if (request != null)
{
request.Abort();
}
}
return result;
}
#endregion
}

}