Question

我需要创建Http POST请求，并且可能需要一些GET请求作为我正在编写的一些测试的字符串。目前，我的测试使用StringBuilder构建它们，并从fiddler中取出硬编码的POST请求，如下所示：

var builder = new StringBuilder();
builder.Append("POST https://some.web.pg HTTP/1.1\r\n");
builder.Append("Content-Type: application/x-www-form-urlencoded\r\n");
builder.Append("Referer: https://some.referer.com\r\n");
builder.Append("Accept-Language: en-us\r\n");
builder.Append("Accept-Encoding: gzip, deflate\r\n");
builder.Append("User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)\r\n");
builder.Append("Host: login.yahoo.com\r\n");
//    ... other header info
builder.Append("\r\n");
builder.Append("post body......\r\n");
var postData = builder.ToString();

这很快使我的测试变得混乱，并且希望有更简洁的方法来构建这些POST请求。我一直在研究HttpWebRequest类，希望它可以为我创建这些。我认为在背后它必须有一些方法来构建这个确切的请求，我试图以某种形式创建。但是，GetRequestStream只是一个可写的流。

有没有办法读取HttpWebRequest将生成的请求流（然后将其更改为字符串）？或者甚至关于如何生成这些POST请求的任何想法都可以。

Answer 1

这里有一个msdn示例来发出Get请求：

using System;

使用System.Net; 使用System.IO;

命名空间MakeAGETRequest_charp { /// /// Class1的摘要描述。 /// class Class1 { static void Main（string [] args） { string sURL; sURL =“http://www.microsoft.com”;

        WebRequest wrGETURL;
        wrGETURL = WebRequest.Create(sURL);

        WebProxy myProxy = new WebProxy("myproxy",80);
        myProxy.BypassProxyOnLocal = true;

        wrGETURL.Proxy = WebProxy.GetDefaultProxy();

        Stream objStream;
        objStream = wrGETURL.GetResponse().GetResponseStream();

        StreamReader objReader = new StreamReader(objStream);

        string sLine = "";
        int i = 0;

        while (sLine!=null)
        {
            i++;
            sLine = objReader.ReadLine();
            if (sLine!=null)
                Console.WriteLine("{0}:{1}",i,sLine);
        }
        Console.ReadLine();
    }
}

} 这里是一个帖子请求（来自HTTP request with post）

    HttpWebRequest httpWReq =
    (HttpWebRequest)WebRequest.Create("http:\\domain.com\page.asp");

ASCIIEncoding encoding = new ASCIIEncoding();
string postData = "username=user";
postData += "&password=pass";
byte[] data = encoding.GetBytes(postData);

httpWReq.Method = "POST";
httpWReq.ContentType = "application/x-www-form-urlencoded";
httpWReq.ContentLength = data.Length;

using (Stream newStream = httpWReq.GetRequestStream())
{
    newStream.Write(data,0,data.Length);
}

Answer 2

我建议你使用模拟因为它是单元测试的最佳实践：在堆栈上看到这个答案 Unit testing HTTP requests in c#

Answer 3

    HttpWebRequest req = (HttpWebRequest)WebRequest.Create(yoururllink);
    var c = HttpContext.Current;

    //Set values for the request back
    req.Method = "POST";
    req.ContentType = "application/x-www-form-urlencoded";
    byte[] param = Request.BinaryRead(HttpContext.Current.Request.ContentLength);
    string strRequest = Encoding.ASCII.GetString(param);
    string strResponse_copy = strRequest;  //Save a copy of the initial info sent from your url link
    strRequest += "&cmd=_notify-validate";
    req.ContentLength = strRequest.Length;

    //for proxy
    //WebProxy proxy = new WebProxy(new Uri("http://url:port#"));
    //req.Proxy = proxy;

    //Send the request to PayPal and get the response
    StreamWriter streamOut = new StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII);
    streamOut.Write(strRequest);
    streamOut.Close();
    StreamReader streamIn = new StreamReader(req.GetResponse().GetResponseStream());
    string strResponse = streamIn.ReadToEnd();
    streamIn.Close();

阅读HttpWebRequest的HTTP POST请求

3 个答案: