Question

<form action="https://somewebsiteaddrest" method="post">
   <input name="Var1"  type="hidden" value="Variable 1 value" />
   <input name="Var2"  type="hidden" value="Variable 2 value" />
   <input name="Var3"  type="hidden" value="Variable 3 value" />
   <input name="Var4"  type="hidden" value="Variable 4 value" />
   <input name="Var5"  type="hidden" value="Variable 6 value" />
   <input type="submit" value="Go now" />
</form>

我想创建相同的post方法和重定向（在C＃中）而不使用此表单和 javascript frm.submit();

我有一个C＃代码片段，我希望能够做到。

    WebRequest request = WebRequest.Create(url);
    request.Method = "POST";
    string postData = "What to write here? here should be variable i guess.";
    byte[] byteArray = Encoding.UTF8.GetBytes(postData);
    request.ContentType = "application/x-www-form-urlencoded";
    request.ContentLength = byteArray.Length;
    Stream dataStream = request.GetRequestStream();
    dataStream.Write(byteArray, 0, byteArray.Length);
    dataStream.Close();
    WebResponse response = request.GetResponse();
    Console.WriteLine(((HttpWebResponse)response).StatusDescription);
    dataStream = response.GetResponseStream();
    StreamReader reader = new StreamReader(dataStream);
    string responseFromServer = reader.ReadToEnd();
    Console.WriteLine(responseFromServer);
    reader.Close();
    dataStream.Close();
    response.Close();


string postData

在postData中写什么来获得与使用form和form.submit()相同的效果？提前致谢

Answer 1

帖子数据应该是URL编码的表格数据，即由&个字符分隔的键=值对。使用UrlEncode method对值进行编码：

string postData =
  "Var1=" + HttpUtility.UrlEncode("Variable 1 value")+
  "&Var2=" + HttpUtility.UrlEncode("Variable 2 value")+
  "&Var3=" + HttpUtility.UrlEncode("Variable 3 value")+
  "&Var4=" + HttpUtility.UrlEncode("Variable 4 value")+
  "&Var5=" + HttpUtility.UrlEncode("Variable 6 value");

Answer 2

POSTDATA = “VAR1 = XXX＆安培; VAR2 = YYYY ....”

Answer 3

POST requests提供使用URL编码发送数据的正文。

您可以使用this method对数据进行编码。

例如，您可以使用以下代码：

string ToQueryString(IEnumerable data)
{
    return string.Join("&", data.Select(d => HttpUtility.UrlEncode(d.ToString())));
}

使用没有表单C的某些值发布方法和重定向＃

3 个答案: