介绍参数封装
namespace EasyHttp.Net.Core
{
public 才能;class KeyValue
{才能
,,,public string 关键;
,,,public string 价值;
,,,public string FilePath;
,,,public string ContentType=?/*“;
,,,public KeyValue (string 关键,string 价值,string filePath,, string contentType)
,,,{
,,,,,Key =,关键;
,,,,,Value =,价值;
,,,,,FilePath =, filePath;
,,,,,ContentType =, contentType;
,,,}
,,,public KeyValue (), {,}
,,,public KeyValue (string 关键,string 价值,string filePath)
,,,{
,,,,,Key =,关键;
,,,,,Value =,价值;
,,,,,FilePath =, filePath;
,,,}
,,,public KeyValue (string 关键,string 价值)
,,,{
,,,,,Key =,关键;
,,,,,Value =,价值;
,,,}
,,}
} public static void ExecuteMultipartRequest (HttpWebRequest 请求,List,签证中心)
{
Console.WriteLine才能(request.Headers);//,才能,log.Debug (string.Format (“Uploading {0},用{1},,,文件,,url));
string 才能;boundary =,“- - - - - - - - - - - - - - - - - - - - - - - - -产生绯闻;,+,DateTime.Now.Ticks.ToString (“x");
,,byte [], boundarybytes =, System.Text.Encoding.ASCII.GetBytes (“\ r \ n——“, +, boundary +,“\ r \ n");
HttpWebRequest 才能;wr =,请求;
时间=wr.ContentType 才能;“多部分/格式;,边界=?+,边界;
wr.Method =,才能“POST";
wr.KeepAlive =,才能正确;
时间=wr.Credentials 才能;System.Net.CredentialCache.DefaultCredentials;
using 才能;(var rs =, wr.GetRequestStream ())
{才能
,,,//,普通参数模板
,,,string formdataTemplate =,“附加项:,格式;,name=\“{0} \“\ r \ n \ r \ n {1}“;
,,,//带文件的参数模板
,,,string headerTemplate =,“附加项:,格式;,name=\“{0} \“;,文件名=\“{1}\“\ r \ nContent-Type:, {2} \ r \ n \ r \ n";
,,,foreach (KeyValue KeyValue 签证中心拷贝)
,,,{
,,,,,//如果是普通参数
,,,,,if (keyValue.FilePath ==, null)
,,,,,{
,,,,,,,rs.Write (boundarybytes, 0, boundarybytes.Length);
,,,,,,,string formitem =, string.Format (formdataTemplate, keyValue.Key,, keyValue.Value);
,,,,,,,byte [], formitembytes =, System.Text.Encoding.UTF8.GetBytes (formitem);
,,,,,,,rs.Write (formitembytes, 0, formitembytes.Length);
,,,,,}
,,,,,//如果是文件参数,则上传文件
,,,,,
,,,,,{
,,,,,,,rs.Write (boundarybytes, 0, boundarybytes.Length);
,,,,,,,string header =, string.Format (keyValue.Key, headerTemplate,还以为,keyValue.FilePath, keyValue.ContentType);
,,,,,,,byte [], headerbytes =, System.Text.Encoding.UTF8.GetBytes(头);
,,,,,,,rs.Write (headerbytes, 0, headerbytes.Length);
,,,,,,,using (var fileStream =, new 文件流(keyValue.FilePath, FileMode.Open,, FileAccess.Read))
,,,,,,,{
,,,,,,,,,byte [], buffer =, new 字节[4096];
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本篇文章为大家展示了怎么在c#中利用WebRequest实现一个多文件上传功能,内容简明扼要并且容易理解,绝对能使你眼前一亮,通过这篇文章的详细介绍希望你能有所收获。
添加引用
使用WebRequest需要添加引用系统。网络,否则引入出错。
参数封装
方便起见,我把请求参数进行了封装,代码如下:
KeyValue代表了广义的参数,可以是普通的键值对,也可以是文件参数。
