如何使用带有查询字符串的WebRequest发布数据 [英] How to Post Data Using WebRequest with Query String

问题描述

嗨 我想使用Querystring形式使用System.Net.Webrequest发布数据
可能吗 ?如果是，那么任何人都可以给我该

Hi I want to post data using System.Net.Webrequest in the form of Querystring
Is it Possible ? If yes then can anybody give me the code for that

推荐答案

的代码当然可以.从客户端的角度来看，没有查询字符串之类的东西.这只是URL的一部分.

这项工作看起来很有趣，可以很好地处理查询参数: WebRequest参数实用工具 [

Of course it is possible. From the client stand point, there is no such thing as query string; this is just part of the URL.

This work looks like an interesting supplement to handle query arguments nicely: WebRequest Parameter Utility[^].

—SA

在这里，我们去..

Here we go..

using System.Net;
using System.IO;

public string Post(string url, string data)
    {

        string vystup = null;
        try
        {
            //Our postvars
            byte[] buffer = System.Text.Encoding.ASCII.GetBytes(data);
            //Initialisation, we use localhost, change if appliable
            HttpWebRequest WebReq = (HttpWebRequest)WebRequest.Create(url);
            //Our method is post, otherwise the buffer (postvars) would be useless
            WebReq.Method = "POST";
            //We use form contentType, for the postvars.
            WebReq.ContentType = "application/x-www-form-urlencoded";
            //The length of the buffer (postvars) is used as contentlength.
            WebReq.ContentLength = buffer.Length;
            //We open a stream for writing the postvars
            Stream PostData = WebReq.GetRequestStream();
            //Now we write, and afterwards, we close. Closing is always important!
            PostData.Write(buffer, 0, buffer.Length);
            PostData.Close();
            //Get the response handle, we have no true response yet!
            HttpWebResponse WebResp = (HttpWebResponse)WebReq.GetResponse();
            //Now, we read the response (the string), and output it.
            Stream Answer = WebResp.GetResponseStream();
            StreamReader _Answer = new StreamReader(Answer);
            vystup = _Answer.ReadToEnd();
            //Congratulations, you just requested your first POST page, you
            //can now start logging into most login forms, with your application
            //Or other examples.
        }
        catch (Exception ex)
        {
        }
        return vystup.Trim() + "\n";
    }

Post("http://www.xyz.com","postvar=1&postvar=2")

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