代码：
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading;
namespace Utils
{
/// <summary>
/// Http上传下载文件
/// </summary>
public class HttpUtil
{
#region HttpDownloadFile 下载文件
/// <summary>
/// 下载文件
/// </summary>
/// <param name="url">下载文件url路径</param>
/// <param name="cookie">cookie</param>
public static MemoryStream HttpDownloadFile(string url, CookieContainer cookie = null, WebHeaderCollection headers = null)
{
try
{
// 设置参数
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
request.Method = "GET";
request.CookieContainer = cookie;
if (headers != null)
{
foreach (string key in headers.Keys)
{
request.Headers.Add(key, headers[key]);
}
}
//发送请求并获取相应回应数据
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
//直到request.GetResponse()程序才开始向目标网页发送Post请求
Stream responseStream = response.GetResponseStream();
//创建写入流
MemoryStream stream = new MemoryStream();
byte[] bArr = new byte[1024];
int size = responseStream.Read(bArr, 0, (int)bArr.Length);
while (size > 0)
{
stream.Write(bArr, 0, size);
size = responseStream.Read(bArr, 0, (int)bArr.Length);
}
stream.Seek(0, SeekOrigin.Begin);
responseStream.Close();
return stream;
}
catch (Exception ex)
{
LogUtil.Error(ex);
return null;
}
}
#endregion
#region HttpUploadFile 上传文件
/// <summary>
/// Http上传文件
/// </summary>
/// <param name="url">上传文件url路径</param>
/// <param name="bArr">byte数据上传文件</param>
/// <param name="fileName">文件名称</param>
/// <param name="cookie">cookie</param>
public static string HttpUploadFile(string url, byte[] bArr, string fileName, CookieContainer cookie = null, WebHeaderCollection headers = null)
{
try
{
// 设置参数
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
CookieContainer cookieContainer = new CookieContainer();
request.CookieContainer = cookieContainer;
request.AllowAutoRedirect = true;
request.Method = "POST";
string boundary = DateTime.Now.Ticks.ToString("X"); // 随机分隔线
request.ContentType = "text/plain;charset=utf-8";
request.CookieContainer = cookie;
if (headers != null)
{
foreach (string key in headers.Keys)
{
request.Headers.Add(key, headers[key]);
}
}
Stream postStream = request.GetRequestStream();
postStream.Write(bArr, 0, bArr.Length);
postStream.Close();
//发送请求并获取相应回应数据
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
//直到request.GetResponse()程序才开始向目标网页发送Post请求
Stream instream = response.GetResponseStream();
StreamReader sr = new StreamReader(instream, Encoding.UTF8);
//返回结果网页（html）代码
string content = sr.ReadToEnd();
instream.Close();
return content;
}
catch (Exception ex)
{
LogUtil.Error(ex);
return string.Empty;
}
}
#endregion
#region HttpPost
/// <summary>
/// HttpPost
/// </summary>
/// <param name="url">url路径名称</param>
/// <param name="data">需要传输的数据</param>
/// <param name="cookie">cookie</param>
public static string HttpPost(string url, string data, CookieContainer cookie = null, WebHeaderCollection headers = null)
{
try
{
// 设置参数
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
request.CookieContainer = cookie;
request.Method = "POST";
request.ContentType = "application/json";
if (headers != null)
{
foreach (string key in headers.Keys)
{
request.Headers.Add(key, headers[key]);
}
}
if (data != null)
{
byte[] bArr = ASCIIEncoding.UTF8.GetBytes(data);
request.ContentLength = bArr.Length;
Stream postStream = request.GetRequestStream();
postStream.Write(bArr, 0, bArr.Length);
postStream.Close();
}
//发送请求并获取相应回应数据
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
//直到request.GetResponse()程序才开始向目标网页发送Post请求
Stream instream = response.GetResponseStream();
StreamReader sr = new StreamReader(instream, Encoding.UTF8);
//返回结果网页（html）代码
string content = sr.ReadToEnd();
instream.Close();
return content;
}
catch (Exception ex)
{
LogUtil.Error(ex);
return string.Empty;
}
}
#endregion
#region HttpPost
/// <summary>
/// HttpPost
/// </summary>
/// <param name="url">url路径名称</param>
/// <param name="cookie">cookie</param>
public static string HttpPost(string url, CookieContainer cookie = null, WebHeaderCollection headers = null)
{
// 设置参数
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
request.CookieContainer = cookie;
request.Method = "POST";
request.ContentType = "application/json";
if (headers != null)
{
foreach (string key in headers.Keys)
{
request.Headers.Add(key, headers[key]);
}
}
//发送请求并获取相应回应数据
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
//直到request.GetResponse()程序才开始向目标网页发送Post请求
Stream instream = response.GetResponseStream();
StreamReader sr = new StreamReader(instream, Encoding.UTF8);
//返回结果网页（html）代码
string content = sr.ReadToEnd();
instream.Close();
return content;
}
#endregion
#region HttpGet
/// <summary>
/// HttpGet
/// </summary>
/// <param name="url">url路径名称</param>
/// <param name="cookie">cookie</param>
public static string HttpGet(string url, CookieContainer cookie = null, WebHeaderCollection headers = null)
{
try
{
// 设置参数
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
request.CookieContainer = cookie;
request.Method = "GET";
request.ContentType = "text/plain;charset=utf-8";
if (headers != null)
{
foreach (string key in headers.Keys)
{
request.Headers.Add(key, headers[key]);
}
}
//发送请求并获取相应回应数据
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
//直到request.GetResponse()程序才开始向目标网页发送Post请求
Stream instream = response.GetResponseStream();
StreamReader sr = new StreamReader(instream, Encoding.UTF8);
//返回结果网页（html）代码
string content = sr.ReadToEnd();
instream.Close();
return content;
}
catch (Exception ex)
{
LogUtil.Error(ex);
return string.Empty;
}
}
#endregion
#region HttpGet
/// <summary>
/// HttpGet
/// </summary>
/// <param name="url">url路径名称</param>
/// <param name="cookieOut">传出的cookie</param>
/// <param name="cookie">cookie</param>
public static string HttpGet(string url, out Cookie cookieOut, CookieContainer cookie = null, WebHeaderCollection headers = null)
{
try
{
// 设置参数
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
request.CookieContainer = cookie;
request.Method = "GET";
request.ContentType = "text/plain;charset=utf-8";
if (headers != null)
{
foreach (string key in headers.Keys)
{
request.Headers.Add(key, headers[key]);
}
}
//发送请求并获取相应回应数据
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
//直到request.GetResponse()程序才开始向目标网页发送Post请求
Stream instream = response.GetResponseStream();
StreamReader sr = new StreamReader(instream, Encoding.UTF8);
//返回结果网页（html）代码
string content = sr.ReadToEnd();
instream.Close();
//获取Cookie
CookieCollection cookieCollection = request.CookieContainer.GetCookies(request.RequestUri);
if (cookieCollection != null && cookieCollection.Count > 0)
{
cookieOut = cookieCollection[0];
}
else
{
cookieOut = null;
}
return content;
}
catch (Exception ex)
{
LogUtil.Error(ex);
cookieOut = null;
return string.Empty;
}
}
#endregion
}
}
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标签：HTTP Post
