在 post 请求中发送文件+参数 [英] Send file+parameters in post request

问题描述

我正在使用此代码将参数发送到网页并从中获得正确的响应.

I'm using this code to send parameters to a webpage and getting correct response from it.

System.Net.WebClient oWeb = new System.Net.WebClient();
oWeb.Proxy = System.Net.WebRequest.DefaultWebProxy;
oWeb.Proxy.Credentials = System.Net.CredentialCache.DefaultCredentials;
oWeb.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
byte[] bytArguments = System.Text.Encoding.ASCII.GetBytes("value1=123&value2=xyz");
byte[] bytRetData = oWeb.UploadData("http://website.com/file.php", "POST", bytArguments);
response = System.Text.Encoding.ASCII.GetString(bytRetData);

但是现在我想向它发送一个像 (.doc) 这样的文件 + 上面的参数 (value1, value2)，但是我不知道该怎么做.

But now I want to send a file like (.doc) to it + above parameters(value1, value2), but I don't know how to do that.

推荐答案

使用 WebClient.QueryString 传递与请求关联的名称/值对.

Use WebClient.QueryString to pass name/value pairs associated with the request.

NameValueCollection parameters = new NameValueCollection();
parameters.Add("value1", "123");
parameters.Add("value2", "xyz");
oWeb.QueryString = parameters;
var responseBytes = oWeb.UploadFile("http://website.com/file.php", "path to file");
string response = Encoding.ASCII.GetString(responseBytes);

这篇关于在 post 请求中发送文件+参数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！