Question

我想使用预定义的Cookie导航到网站，向input type="text"的几个文本添加一些文本，然后使用提交按钮提交表单。我知道可以做到，但我找不到。

我已经尝试将POST数据发送到页面，但是我必须单击按钮才能执行操作。这是我的代码：

        static 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.Headers["Cookie"] = "sid=0";
        objRequest.Headers["Cookie"] = "username=0";
        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;
    }


    static void Main(string[] args)
    {

        Console.Write(readHtmlPage("http://www.ggogle.com/"));
    }

Answer 1

我的建议，我过去所做的是：
- 使用Fiddler并使用浏览器点击网站，并像平常一样填写表格 - Fiddler将记录请求/响应，您可以复制发布数据字符串并替换您需要的任何值，并使用HttpWebRequest / HttpWebResponse以编程方式执行POST并获得响应。

post data through httpWebRequest

示例：这是我提交最后一条评论时捕获的帖子数据。

comment=When+you+collect+the+recorded+POST+string+you+can+swap+out+the+key+value+pairs+in+there+before+you+make+the+request.+When+the+OnClick+event+fires+it+will+POST+data+to+the+server%2C+this+is+what+you+need+to+recreate+nothing+with+the+javascript.&fkey=62a7d57a52ee7fa723413a2e1dbe7e71

string postData = string.format("comment={0}&fkey={1}", myCommentString, myFKey);

然后，您可以将此字符串传递给POST所针对的URL，并使用HttpWebRequest重新创建它。

您还需要确保在帖子字符串中对您的值进行URL编码。

webBrowser Cookie和表单提交

1 个答案: