C#/.NET RestSharp网络组件实现上传文件到远程服务器
http://2sharings.com/2015/csharp-net-restsharp-upload-file-to-remote-server-using-restsharp-demo
前给大家分享了一个C#/.NET的网络组件–RestSharp，具体请参考:推荐一个.NET(C#)的HTTP辅助类组件–restsharp
今天再给大家示范一下如何应用RestSharp这个网络组件来实现可跨域的文件上传功能。
在文章的末尾我会把这个示例项目的源码下载发布出来。
本项目由一个客户端和一个ASP.NET WEB API 2来演示。客户端主要用于模拟用户的上传文件操作，而WEB API则是来接收用户上传的文件。在这里，我只贴出这两个部分的核心代码。
首先是WEB API（RestSharpUploadFileController.cs）：
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using
System
.
Collections
.
Generic
;
using
System
.
Net
;
using
System
.
Net
.
Http
;
using
System
.
Web
;
using
System
.
Web
.
Http
;
namespace
RsUploadFileDemo
.
Web
.
Controllers
{
[
RoutePrefix
(
"api/upload"
)
]
public
class
RestSharpUploadFileController
:
ApiController
{
[
Route
(
"rs"
)
]
[
HttpPost
]
public
HttpResponseMessage
Upload
(
)
{
HttpResponseMessage
response
=
null
;
var
request
=
HttpContext
.
Current
.
Request
;
if
(
request
.
Files
.
Count
>
0
)
{
var
fileNameList
=
new
List
<
string
>
(
)
;
foreach
(
string
file
in
request
.
Files
)
{
var
f
=
request
.
Files
[
file
]
;
var
fileSavePath
=
HttpContext
.
Current
.
Server
.
MapPath
(
"~/uploads/"
+
f
.
FileName
)
;
f
.
SaveAs
(
fileSavePath
)
;
fileNameList
.
Add
(
fileSavePath
)
;
}
response
=
Request
.
CreateResponse
(
HttpStatusCode
.
OK
,
fileNameList
)
;
}
else
{
response
=
Request
.
CreateResponse
(
HttpStatusCode
.
BadRequest
)
;
}
return
response
;
}
}
}
|
其次是客户端(FrmMain.cs)：
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private
void
btnUpload_Click
(
object
sender
,
EventArgs
e
)
{
var
fileLocation
=
@"D:RestSharp.dll"
;
try
{
var
request
=
new
RestRequest
(
Method
.
POST
)
;
request
.
AddFile
(
"file"
,
fileLocation
)
;
//calling server with restClient
var
restClient
=
new
RestClient
{
BaseUrl
=
new
Uri
(
"http://localhost:57546/api/upload/rs"
)
}
;
restClient
.
ExecuteAsync
(
request
,
(
response
)
=
>
{
if
(
response
.
StatusCode
==
HttpStatusCode
.
OK
)
{
MessageBox
.
Show
(
"上传成功...n"
+
response
.
Content
)
;
}
else
{
MessageBox
.
Show
(
string
.
Format
(
"出错啦:{0}"
,
response
.
Content
)
)
;
}
}
)
;
}
catch
(
Exception
ex
)
{
MessageBox
.
Show
(
string
.
Format
(
"出错啦:{0}"
,
ex
.
Message
)
)
;
}
}
|
需要注意的另一个问题是：我把WEB API的默认返回类型设置成了JSON格式的，这个设置只需要修改一下Global.asax.cs文件即可，修改后的Global.asax.cs文件如下：
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using
System
.
Net
.
Http
.
Formatting
;
using
System
.
Net
.
Http
.
Headers
;
using
System
.
Web
;
using
System
.
Web
.
Http
;
namespace
RsUploadFileDemo
.
Web
{
public
class
WebApiApplication
:
HttpApplication
{
protected
void
Application_Start
(
)
{
GlobalConfiguration
.
Configure
(
WebApiConfig
.
Register
)
;
GlobalConfiguration
.
Configuration
.
Formatters
.
XmlFormatter
.
MediaTypeMappings
.
Add
(
new
QueryStringMapping
(
"xml"
,
"true"
,
"application/xml"
)
)
;
GlobalConfiguration
.
Configuration
.
Formatters
.
JsonFormatter
.
SupportedMediaTypes
.
Add
(
new
MediaTypeHeaderValue
(
"text/html"
)
)
;
}
}
}
|
好了，以上就是这个关于使用RestSharp上传文件到远程服务器的示例的