C# httphelper 学习

 

一直在用webservice对接，后来新项目用到了restful api   从其他同事地方拿来学习

 

 

using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Drawing;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Reflection;
using System.Text;
using System.Xml.Serialization;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;

namespace OpenHttp
{
/// <summary>
/// Http头信息
/// </summary>
public class HttpHead
{

/// <summary>
/// 初始化HttpHread
/// </summary>
public static HttpHead Builder => new HttpHead();

#region 请求头

/// <summary>
/// 请求的Url
/// </summary>
public string Url { get; set; }

/// <summary>
/// 希望接受的数据类型,默认text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
/// </summary>
public string Accept { get; set; } = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";

/// <summary>
/// 自动重定向,默认开启
/// </summary>
public bool AllowAutoRedirect { get; set; } = true;

/// <summary>
/// 请求的参数集合
/// </summary>
public Object Data { get; private set; } = new NameValueCollection();

/// <summary>
/// 上传的文件
/// </summary>
public List<Tuple<string, string, byte[]>> Files { get; private set; } = new List<Tuple<string, string, byte[]>>();

/// <summary>
/// Post数据方式
/// </summary>
public ContentType ContentType { get; private set; } = ContentType.Default;

/// <summary>
/// 当前Head是否使用Cookie,默认开启
/// </summary>
public bool CookieState { get; set; } = true;

/// <summary>
/// 请求头
/// </summary>
public WebHeaderCollection RequestHeaders { get; } = new WebHeaderCollection { { "Accept-Encoding", "gzip,deflate" }, { "Accept-Language", "zh-CN,zh;q=0.8" } };

/// <summary>
/// 请求的Host
/// </summary>
public string Host { get; set; }

/// <summary>
/// 是否建立持久性连接,true
/// </summary>
public bool KeepAlive { get; set; } = true;

/// <summary>
/// 自动重定向的次数,默认50
/// </summary>
public int MaximumAutomaticRedirections { get; set; } = 50;

/// <summary>
/// 请求方式,默认Get
/// </summary>
public Method Method { get; private set; } = Method.Get;

/// <summary>
/// http协议版本 默认1.1
/// </summary>
public Version Version { get; set; } = HttpVersion.Version11;

/// <summary>
/// 代理 默认无
/// </summary>
public IWebProxy Proxy { get; set; }

/// <summary>
/// 请求的Referer
/// </summary>
public string Referer { get; set; }

/// <summary>
/// 浏览器标识
/// </summary>
public string UserAgent { get; set; } = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36";

/// <summary>
/// 固定端口代理
/// </summary>
public BindIPEndPoint BindIpEndPointDelegate { get; set; }
#endregion

/// <summary>
/// 返回的头
/// </summary>
public WebHeaderCollection ResponseHeaders { get; set; }

/// <summary>
/// 返回的资源编码
/// </summary>
public Encoding Encod { get; set; }

/// <summary>
/// 开启自动重定向,默认开启
/// </summary>
/// <returns></returns>
public HttpHead AllowAutoRedirectEnable()
{
AllowAutoRedirect = true;
return this;
}

/// <summary>
/// 关闭自动重定向,默认开启
/// </summary>
/// <returns></returns>
public HttpHead AllowAutoRedirectDisable()
{
AllowAutoRedirect = false;
return this;
}

/// <summary>
/// 当前Head使用Cookie
/// </summary>
/// <returns></returns>
public HttpHead CookieStateEnable()
{
CookieState = true;
return this;
}

/// <summary>
/// 当前Head禁用Cookie
/// </summary>
/// <returns></returns>
public HttpHead CookieStateDisable()
{
CookieState = false;
return this;
}

/// <summary>
/// 添加请求头,若已存在则覆盖
/// </summary>
/// <param name="key">Http头Key</param>
/// <param name="value">值</param>
/// <returns>HttpHead</returns>
public HttpHead AddRequestHeader(string key, string value)
{
var firstOrDefault = RequestHeaders.AllKeys.FirstOrDefault(c => c == key);
if (!string.IsNullOrWhiteSpace(firstOrDefault)) RequestHeaders.Remove(key);
RequestHeaders.Add(key, value);
return this;
}

/// <summary>
/// 设置ClientIp
/// </summary>
/// <param name="ip"></param>
/// <returns></returns>
public HttpHead ClientIp(string ip)
{
return AddRequestHeader("Client-Ip", ip);
}

/// <summary>
/// 设置RemoteAddr
/// </summary>
/// <param name="ip"></param>
/// <returns></returns>
public HttpHead RemoteAddr(string ip)
{
return AddRequestHeader("RemoteAddr", ip);
}

/// <summary>
/// 设置XForwardedFor
/// </summary>
/// <param name="ip"></param>
/// <returns></returns>
public HttpHead XForwardedFor(string ip)
{
return AddRequestHeader("X-Forwarded-For", ip);
}

/// <summary>
/// 同时设置ClientIp,RemoteAddr,XForwardedFor
/// </summary>
/// <param name="ip"></param>
/// <returns></returns>
public HttpHead Ip(string ip)
{
return ClientIp(ip).RemoteAddr(ip).XForwardedFor(ip);
}

/// <summary>
/// 设置支持的Accept-Encoding,默认支持gzip,deflate
/// </summary>
/// <param name="acceptEncoding"></param>
/// <returns></returns>
public HttpHead AcceptEncoding(string acceptEncoding)
{
return AddRequestHeader("Accept-Encoding", acceptEncoding);
}

/// <summary>
/// 设置支持的Accept-Language,默认zh-CN,zh;q=0.8
/// </summary>
/// <param name="acceptlanguange"></param>
/// <returns></returns>
public HttpHead Acceptlanguange(string acceptlanguange)
{
return AddRequestHeader("Accept-Language", acceptlanguange);
}

/// <summary>
/// 设置X-Requested-With请求方式,默认为普通
/// </summary>
/// <param name="xRequestedWith"></param>
/// <returns></returns>
public HttpHead SetXRequestedWith(XRequestedWith xRequestedWith)
{
if (xRequestedWith != XRequestedWith.Default) return AddRequestHeader("X-Requested-With", xRequestedWith.ToDescriptionName());

var firstOrDefault = RequestHeaders.AllKeys.FirstOrDefault(c => c == "X-Requested-With");
if (string.IsNullOrWhiteSpace(firstOrDefault)) return this;

RequestHeaders.Remove("X-Requested-With");
return this;
}

/// <summary>
/// 设置Origin
/// </summary>
/// <param name="origin">origin</param>
/// <returns>HttpHead</returns>
public HttpHead Origin(string origin)
{
return AddRequestHeader("Origin", origin);
}

/// <summary>
/// 通过Get获取网络资源
/// </summary>
/// <returns></returns>
public DefaultData MethodGet()
{
Method = Method.Get;
return new DefaultData(this);
}

/// <summary>
/// 通过From方式Post获取网络资源
/// </summary>
/// <returns></returns>
public DefaultData MethodPostDefault()
{
Method = Method.Post;
ContentType = ContentType.Default;
return new DefaultData(this);
}

/// <summary>
/// 通过Json方式Post获取网络资源
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public HttpHead MethodPostJson(Object data = null)
{
Method = Method.Post;
ContentType = ContentType.Json;
if (null != data) Data = data;
return this;
}

/// <summary>
/// 通过Xml方式Post获取网络资源
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public HttpHead MethodPostXml(Object data = null)
{
Method = Method.Post;
ContentType = ContentType.Xml;
if (null != data) Data = data;
return this;
}

/// <summary>
/// 通过Stream方式Post获取网络资源
/// </summary>
/// <returns></returns>
public StreamData MethodPostStream()
{
Method = Method.Post;
ContentType = ContentType.Stream;
return new StreamData(this);
}

/// <summary>
/// 开启保持链接
/// </summary>
/// <returns></returns>
public HttpHead KeepAliveEnable()
{
KeepAlive = true;
return this;
}

/// <summary>
/// 关闭保持链接
/// </summary>
/// <returns></returns>
public HttpHead KeepAliveDisable()
{
KeepAlive = true;
return this;
}

/// <summary>
/// 普通get与post参数界定
/// </summary>
public class DefaultData
{
private readonly HttpHead _httpHead;
private readonly NameValueCollection _data = new NameValueCollection();

public DefaultData(HttpHead httpHead)
{
_httpHead = httpHead;
}

/// <summary>
/// 增加请求参数
/// </summary>
/// <param name="key">键</param>
/// <param name="value">值</param>
/// <returns></returns>
public DefaultData AddData(string key, string value)
{
_data.Add(key, value);
return this;
}

/// <summary>
/// 结束参数增加
/// </summary>
/// <returns></returns>
public HttpHead End()
{
_httpHead.Data = _data;
return _httpHead;
}
}

/// <summary>
/// 流方式post参数界定
/// </summary>
public class StreamData
{
private readonly HttpHead _httpHead;
private readonly NameValueCollection _data = new NameValueCollection();
private readonly List<Tuple<string, string, byte[]>> _files = new List<Tuple<string, string, byte[]>>();

public StreamData(HttpHead httpHead)
{
_httpHead = httpHead;
}

/// <summary>
/// 增加请求参数
/// </summary>
/// <param name="key">键</param>
/// <param name="value">值</param>
/// <returns></returns>
public StreamData AddData(string key, string value)
{
_data.Add(key, value);
return this;
}

/// <summary>
/// 增加上传文件,默认key为filename
/// </summary>
/// <param name="fileName"></param>
/// <param name="file"></param>
/// <returns></returns>
public StreamData AddFile(string fileName, byte[] file)
{
_files.Add(Tuple.Create("filename", fileName, file));
return this;
}

/// <summary>
/// 增加上传文件
/// </summary>
/// <param name="key"></param>
/// <param name="fileName"></param>
/// <param name="file"></param>
/// <returns></returns>
public StreamData AddFile(string key, string fileName, byte[] file)
{
_files.Add(Tuple.Create(key, fileName, file));
return this;
}

public HttpHead End()
{
_httpHead.Data = _data;
_httpHead.Files = _files;
return _httpHead;
}
}
}

/// <summary>
/// 请求方式
/// </summary>
public enum Method
{
/// <summary>
/// Get
/// </summary>
[Description("GET")]
Get = 0,

/// <summary>
/// Post
/// </summary>
[Description("POST")]
Post = 1
}

/// <summary>
/// 数据提交格式
/// </summary>
public enum ContentType
{
/// <summary>
/// 普通From提交
/// </summary>
[Description("application/x-www-form-urlencoded; charset=utf-8")]
Default = 0,

/// <summary>
/// Json提交
/// </summary>
[Description("application/json; charset=utf-8")]
Json = 1,

/// <summary>
/// Xml提交
/// </summary>
[Description("application/xml; charset=UTF-8")]
Xml = 2,

/// <summary>
/// 文件提交
/// </summary>
[Description("multipart/form-data; boundary=----------{0}")]
Stream
}

/// <summary>
/// 请求方式,默认普通
/// </summary>
public enum XRequestedWith
{
/// <summary>
/// 普通请求
/// </summary>
[Description("")]
Default = 0,

/// <summary>
/// Ajax等异步请求
/// </summary>
[Description("XMLHttpRequest")]
Async = 1,
}

/// <summary>
/// OpenHttp扩展
/// </summary>
public static class OpenHttpExpand
{
/// <summary>
/// 请求的Url
/// </summary>
/// <param name="head">Head对象</param>
/// <param name="url">url</param>
/// <returns>Head对象</returns>
public static HttpHead Url(this HttpHead head, string url)
{
head.Url = url;
return head;
}

/// <summary>
/// 希望接受的数据类型,默认text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
/// </summary>
/// <param name="head">Head对象</param>
/// <param name="accept">数据类型</param>
/// <returns></returns>
public static HttpHead Accept(this HttpHead head, string accept)
{
head.Accept = accept;
return head;
}

/// <summary>
/// 自动重定向,默认开启
/// </summary>
/// <param name="head">Head对象</param>
/// <param name="allowAutoRedirect"></param>
/// <returns></returns>
public static HttpHead AllowAutoRedirect(this HttpHead head, bool allowAutoRedirect)
{
head.AllowAutoRedirect = allowAutoRedirect;
return head;
}

/// <summary>
/// 设置Host
/// </summary>
/// <param name="head">Head对象</param>
/// <param name="host">host</param>
/// <returns>HttpHead</returns>
public static HttpHead Host(this HttpHead head, string host)
{
head.Host = host;
return head;
}

/// <summary>
/// 设置最大重定向次数,默认50
/// </summary>
/// <param name="head"></param>
/// <param name="maximum"></param>
/// <returns></returns>
public static HttpHead MaximumAutomaticRedirections(this HttpHead head, int maximum)
{
head.MaximumAutomaticRedirections = maximum;
return head;
}

/// <summary>
/// 设置http协议版本 默认1.1
/// </summary>
/// <param name="head"></param>
/// <param name="version"></param>
/// <returns></returns>
public static HttpHead Version(this HttpHead head, Version version)
{
head.Version = version;
return head;
}

/// <summary>
/// 设置Proxy,默认无
/// </summary>
/// <param name="head">Head对象</param>
/// <param name="proxy">proxy</param>
/// <returns>HttpHead</returns>
public static HttpHead Proxy(this HttpHead head, IWebProxy proxy)
{
head.Proxy = proxy;
return head;
}

/// <summary>
/// 设置Host
/// </summary>
/// <param name="head">Head对象</param>
/// <param name="referer">referer</param>
/// <returns>HttpHead</returns>
public static HttpHead Referer(this HttpHead head, string referer)
{
head.Referer = referer;
return head;
}

/// <summary>
/// 设置UserAgent,默认Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36
/// </summary>
/// <param name="head"></param>
/// <param name="userAgent"></param>
/// <returns></returns>
public static HttpHead UserAgent(this HttpHead head, string userAgent)
{
head.UserAgent = userAgent;
return head;
}

/// <summary>
/// 指定当前Head请求,本机使用的ip,端口,默认不设置
/// </summary>
/// <param name="head"></param>
/// <param name="bindIpEndPoint"></param>
/// <returns></returns>
public static HttpHead BindIpEndPointDelegate(this HttpHead head, BindIPEndPoint bindIpEndPoint)
{
head.BindIpEndPointDelegate = bindIpEndPoint;
return head;
}

/// <summary>
/// 获取枚举的DescriptionAttribute属性
/// </summary>
/// <param name="enumeration">枚举值</param>
/// <returns>DescriptionAttribute属性</returns>
public static string ToDescriptionName(this Enum enumeration)
{
var type = enumeration.GetType();
var memInfo = type.GetMember(enumeration.ToString());
if (memInfo.Length <= 0) return enumeration.ToString();
var attrs = memInfo[0].GetCustomAttributes(typeof(DescriptionAttribute), false);
return attrs.Length > 0 ? ((DescriptionAttribute)attrs[0]).Description : enumeration.ToString();
}

/// <summary>
#pragma warning disable 1570
/// NameValueCollection转换为key=value&key=value
#pragma warning restore 1570
/// </summary>
public static string ToData(this NameValueCollection data)
{
var keyValueList = data.AllKeys.Select(key => new { key, keyValues = data.GetValues(key) })
.Where(t => t.keyValues != null)
.SelectMany(t => t.keyValues, (t, value) => $"{t.key}={value}");

return string.Join("&", keyValueList);
}

/// <summary>
/// 转换为Json,可以使用[JsonProperty("")]指定序列化字段名
/// </summary>
/// <typeparam name="T">泛型</typeparam>
/// <param name="model">待转换的Model</param>
/// <returns>Json字符串</returns>
public static string ToJson<T>(this T model)
{
return JsonConvert.SerializeObject(model, Formatting.Indented, new JsonSerializerSettings
{
ContractResolver = new CamelCasePropertyNamesContractResolver(),
});
}

/// <summary>
/// 转换为Model,可以使用[JsonProperty("")]指定字段名绑定
/// </summary>
/// <typeparam name="T">泛型</typeparam>
/// <param name="jsonString">Json字符串</param>
/// <returns>Model</returns>
public static T JsonToModel<T>(this string jsonString)
{
return JsonConvert.DeserializeObject<T>(jsonString);
}

/// <summary>
/// 转换为Xml
/// </summary>
/// <typeparam name="T">泛型</typeparam>
/// <param name="model">待转换的对象</param>
/// <returns>Xml</returns>
public static string ToXml<T>(this T model)
{
StringWriter sw = null;
try
{
sw = new StringWriter(CultureInfo.InvariantCulture);
var ser = new XmlSerializer(typeof(T));
ser.Serialize(sw, model);
var xml = sw.ToString();
return xml;
}
finally
{
sw?.Close();
sw?.Dispose();
}
}

/// <summary>
/// 转换为Model
/// </summary>
/// <typeparam name="T">泛型</typeparam>
/// <param name="xml">待转换的Xml</param>
/// <returns>Model</returns>
public static T XmlToModel<T>(this string xml)
{
StringReader sr = null;
try
{
sr = new StringReader(xml);
var ser = new XmlSerializer(typeof(T));
var model = (T)ser.Deserialize(sr);
return model;
}
finally
{
sr?.Close();
sr?.Dispose();
}
}

/// <summary>
/// 转换为字符串
/// </summary>
/// <param name="byteArray">待转换Bytes</param>
/// <param name="encoding">编码方式</param>
/// <returns>字符串</returns>
public static string ToString(this byte[] byteArray, Encoding encoding)
{
return encoding.GetString(byteArray);
}

/// <summary>
/// 转换为Bytes
/// </summary>
/// <param name="str">待转换字符串</param>
/// <param name="encoding">编码方式</param>
/// <returns>Bytes</returns>
public static byte[] ToBytes(this string str, Encoding encoding)
{
return encoding.GetBytes(str);
}

/// <summary>
/// 转换为Bytes
/// </summary>
/// <param name="image">待转换的Image</param>
/// <returns>Bytes</returns>
public static byte[] ToBytes(this Image image)
{
MemoryStream ms = null;
try
{
ms = new MemoryStream();
image.Save(ms, image.RawFormat);
var buffer = new byte[ms.Length];
ms.Seek(0, SeekOrigin.Begin);
ms.Read(buffer, 0, buffer.Length);
return buffer;
}
finally
{
ms?.Close();
ms?.Dispose();
}
}

/// <summary>
/// 转换为Image
/// </summary>
/// <param name="bytes">待转换的Bytes</param>
/// <returns></returns>
public static Image ToImage(this byte[] bytes)
{
MemoryStream ms = null;
try
{
ms = new MemoryStream(bytes);
ms.Write(bytes, 0, bytes.Length);
var image = Image.FromStream(ms, true);
return image;
}
finally
{
ms?.Close();
ms?.Dispose();
}
}

public static IEnumerable<Cookie> ToCookies(this CookieContainer cc)
{
var table = (Hashtable)cc.GetType().InvokeMember("m_domainTable", BindingFlags.NonPublic | BindingFlags.GetField | BindingFlags.Instance, null, cc, new object[] { });
return from object pathList in table.Values
select (SortedList)pathList.GetType().InvokeMember("m_list", BindingFlags.NonPublic | BindingFlags.GetField | BindingFlags.Instance, null, pathList, new object[] { })
into lstCookieCol
from CookieCollection colCookies in lstCookieCol.Values
from Cookie c in colCookies
select c;
}
}

/// <summary>
/// HttpClient
/// 不同实例之间Cookie不互通
/// </summary>
public class HttpClient
{
#region 初始化
/// <summary>
/// 初始化
/// </summary>
static HttpClient()
{
ServicePointManager.MaxServicePoints = 0;
ServicePointManager.UseNagleAlgorithm = true;
ServicePointManager.Expect100Continue = true;
//linux下无法使用
//ServicePointManager.EnableDnsRoundRobin = true;
ServicePointManager.MaxServicePointIdleTime = int.MaxValue;
ServicePointManager.DefaultConnectionLimit = int.MaxValue;
ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12;
}

/// <summary>
/// Cookie对象
/// </summary>
public CookieContainer Cookie { get; set; } = new CookieContainer();
#endregion

#region byte[] Load(Httphead head)
/// <summary>
/// 获取Text资源,如Html,Js,Css
/// </summary>
/// <param name="head"></param>
/// <returns></returns>
public byte[] Load(ref HttpHead head)
{
HttpWebRequest myRequest = null;
HttpWebResponse myResponse = null;
Stream stream = null;
MemoryStream memoryStream = null;
try
{
myRequest = GetRequest(head);
myResponse = GetResponse(myRequest, ref head);
stream = myResponse?.GetResponseStream();
memoryStream = new MemoryStream();
stream?.CopyTo(memoryStream);
return memoryStream.ToArray();
}
finally
{
memoryStream?.Close();
memoryStream?.Dispose();
stream?.Close();
stream?.Dispose();
myResponse?.Close();
myResponse?.Dispose();
myRequest?.Abort();
}
}
#endregion

#region HttpWebRequest GetRequest(Httphead head)
/// <summary>
/// 获取HttpWebRequest
/// </summary>
/// <returns></returns>
private HttpWebRequest GetRequest(HttpHead head)
{
var myRequest = (HttpWebRequest)WebRequest.Create(UrlPack(head));
//myRequest.DefaultCachePolicy
//myRequest.DefaultMaximumErrorResponseLength
//myRequest.DefaultMaximumResponseHeadersLength
myRequest.Accept = head.Accept;
//myRequest.Address
myRequest.AllowAutoRedirect = head.AllowAutoRedirect;
//myRequest.AllowReadStreamBuffering
//myRequest.AllowWriteStreamBuffering
myRequest.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate | DecompressionMethods.None;
//myRequest.ClientCertificates
//myRequest.Connection
//myRequest.ConnectionGroupName
//myRequest.ContentType
//myRequest.ContentLength
//myRequest.ContinueDelegate
//myRequest.ContinueTimeout
if (head.CookieState) myRequest.CookieContainer = Cookie;
//myRequest.Credentials
//myRequest.Date
//myRequest.Expect
//myRequest.HaveResponse
myRequest.Headers.Add(head.RequestHeaders);
if (!string.IsNullOrWhiteSpace(head.Host)) myRequest.Host = head.Host;
//myRequest.IfModifiedSince
myRequest.KeepAlive = head.KeepAlive;
myRequest.MaximumAutomaticRedirections = head.MaximumAutomaticRedirections;
//myRequest.MaximumResponseHeadersLength
//myRequest.MediaType = "text/html; charset=utf8";
myRequest.Method = head.Method.ToString();
//myRequest.Pipelined
//myRequest.PreAuthenticate
myRequest.ProtocolVersion = head.Version;
if (null != head.Proxy) myRequest.Proxy = head.Proxy;
//myRequest.ReadWriteTimeout
if (!string.IsNullOrWhiteSpace(head.Referer)) myRequest.Referer = head.Referer;
//myRequest.RequestUri
//myRequest.SendChunked
//myRequest.ServerCertificateValidationCallback
myRequest.ServicePoint.BindIPEndPointDelegate = head.BindIpEndPointDelegate;
//myRequest.ServicePoint.ConnectionLimit = int.MaxValue;
//myRequest.SupportsCookieContainer
//myRequest.Timeout
//myRequest.TransferEncoding
//myRequest.UnsafeAuthenticatedConnectionSharing
//myRequest.UseDefaultCredentials
myRequest.UserAgent = head.UserAgent;

return head.Method == Method.Get ? myRequest : PostPack(myRequest, head);
}
#endregion

#region string UrlPack(HttpHead head)
private static string UrlPack(HttpHead head)
{
switch (head.Method)
{
case Method.Get:
var getData = ((NameValueCollection)head.Data).ToData();

return string.IsNullOrWhiteSpace(getData) ? head.Url : string.Join(head.Url.IndexOf("?", StringComparison.Ordinal) > 0 ? "&" : "?", head.Url, getData);
case Method.Post:
return head.Url;
default:
return head.Url;
}
}
#endregion

#region MyRegion HttpWebRequest PostPack(HttpWebRequest myRequest, HttpHead head)
private static HttpWebRequest PostPack(HttpWebRequest myRequest, HttpHead head)
{
Stream stream = null;
try
{
myRequest.ContentType = head.ContentType.ToDescriptionName();
var postBytes = new List<byte[]>();
#region 组装GetRequestStream
switch (head.ContentType)
{
case ContentType.Default:
var defaultData = ((NameValueCollection)head.Data).ToData();
var defaultBytes = Encoding.UTF8.GetBytes(defaultData);

postBytes.Add(defaultBytes);
break;
case ContentType.Json:
var jsonData = head.Data.ToJson();
var jsonBytes = Encoding.UTF8.GetBytes(jsonData);

postBytes.Add(jsonBytes);
break;
case ContentType.Xml:
var xmlData = head.ToXml();
var xmlBytes = Encoding.UTF8.GetBytes(xmlData);

postBytes.Add(xmlBytes);
break;
case ContentType.Stream:
#region 组装PostBytes
var boundary = DateTime.Now.Ticks.ToString("x");
myRequest.ContentType = string.Format(myRequest.ContentType, boundary);
var boundarybytes = Encoding.UTF8.GetBytes($"\r\n------------{boundary}\r\n");
var endbytes = Encoding.UTF8.GetBytes($"\r\n------------{boundary}--\r\n");

foreach (var data in ((NameValueCollection)head.Data).AllKeys.ToDictionary(c => c, c => ((NameValueCollection)head.Data).GetValues(c)))
{
foreach (var value in data.Value)
{
postBytes.Add(boundarybytes);
postBytes.Add(Encoding.UTF8.GetBytes($"Content-Disposition: form-data; name=\"{data.Key}\"\r\nContent-Type: text/plain\r\n\r\n{value}"));
}
}

foreach (var file in head.Files)
{
postBytes.Add(boundarybytes);
postBytes.Add(Encoding.UTF8.GetBytes($"Content-Disposition: form-data; name=\"{file.Item1}\"; filename=\"{file.Item2}\"\r\nContent-Type: application/octet-stream\r\n\r\n"));
postBytes.Add(file.Item3);
}

postBytes.Add(endbytes);
#endregion

break;
}
#endregion
myRequest.ContentLength = postBytes.Sum(c => c.Length);
stream = myRequest.GetRequestStream();
foreach (var postByte in postBytes) stream.Write(postByte, 0, postByte.Length);
return myRequest;
}
finally
{
stream?.Close();
stream?.Dispose();
}
}

#endregion

#region byte[] GetResponseBytes(HttpWebRequest myRequest, ref HttpHead head)

private HttpWebResponse GetResponse(HttpWebRequest myRequest, ref HttpHead head)
{
HttpWebResponse myResponse;

try
{
myResponse = (HttpWebResponse)myRequest.GetResponse();
}
catch (WebException ex)
{
myResponse = (HttpWebResponse)ex.Response;
}

if (null == myResponse) return null;

try
{
head.Encod = head.Encod ??
Encoding.GetEncoding(string.IsNullOrEmpty(myResponse.CharacterSet)
? "utf-8"
: myResponse.CharacterSet);
}
catch
{
head.Encod = Encoding.UTF8;
}
//myResponse.ContentEncoding
//myResponse.ContentLength
//myResponse.ContentType
if (head.CookieState) Cookie.Add(myResponse.Cookies);
head.ResponseHeaders = myResponse.Headers;
//myResponse.IsMutuallyAuthenticated
//myResponse.LastModified
//myResponse.Method
//myResponse.ProtocolVersion
//myResponse.ResponseUri
//myResponse.Server
//myResponse.StatusCode
//myResponse.StatusDescription
//myResponse.SupportsHeaders
return myResponse;
}
#endregion
}
}

标签：head,return,string,C#,httphelper,HttpHead,学习,myRequest,public
来源： https://www.cnblogs.com/mlwork/p/11532945.html