如何使用C#提交的HTTP表单 [英] How to submit http form using C#
问题描述
我有一个简单的HTML文件,如
I have a simple html file such as
<form action="http://www.someurl.com/page.php" method="POST">
<input type="text" name="test"><br/>
<input type="submit" name="submit">
</form>
编辑:我可能没有足够清晰的问题
I may not have been clear enough with the question
我想编写C#code这在完全相同的方式将发生有我粘贴上面的html到一个文件中提交此表,打开了它与IE浏览器和浏览器提交它。
I want to write C# code which submits this form in the exact same manner that would occur had I pasted the above html into a file, opened it with IE and submitted it with the browser.
推荐答案
下面是我的一个接收一个GET响应网关POST事务最近使用的示例脚本。您是不是在自定义的C#的形式使用呢?无论你的目的,只是从你的形式代替字符串字段(用户名,密码等)的参数。
Here is a sample script that I recently used in a Gateway POST transaction that receives a GET response. Are you using this in a custom C# form? Whatever your purpose, just replace the String fields (username, password, etc.) with the parameters from your form.
private String readHtmlPage(string url)
{
//setup some variables
String username = "demo";
String password = "password";
String firstname = "John";
String lastname = "Smith";
//setup some variables end
String result = "";
String strPost = "username="+username+"&password="+password+"&firstname="+firstname+"&lastname="+lastname;
StreamWriter myWriter = null;
HttpWebRequest objRequest = (HttpWebRequest)WebRequest.Create(url);
objRequest.Method = "POST";
objRequest.ContentLength = strPost.Length;
objRequest.ContentType = "application/x-www-form-urlencoded";
try
{
myWriter = new StreamWriter(objRequest.GetRequestStream());
myWriter.Write(strPost);
}
catch (Exception e)
{
return e.Message;
}
finally {
myWriter.Close();
}
HttpWebResponse objResponse = (HttpWebResponse)objRequest.GetResponse();
using (StreamReader sr =
new StreamReader(objResponse.GetResponseStream()) )
{
result = sr.ReadToEnd();
// Close and clean up the StreamReader
sr.Close();
}
return result;
}
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