get post

最新推荐文章于 2021-11-22 13:58:24 发布

转载最新推荐文章于 2021-11-22 13:58:24 发布 · 153 阅读

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原文链接：https://my.oschina.net/u/3229176/blog/874706

本文详细解析了HTTP协议中GET与POST请求的实现方式，包括设置请求头、使用CookieContainer、设置UserAgent及ContentType等关键步骤，并展示了如何通过C#代码发送GET与POST请求，读取响应流并转换为字符串。

get

//GET
string url = "url";
try
{
HttpWebRequest Req = (HttpWebRequest)WebRequest.Create(url);
Req.CookieContainer = cookie;
Req.ContentType = "application/x-www-form-urlencoded; charset=UTF-8";
Req.Accept = "*/*";
Req.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.122 Safari/537.36 SE 2.X MetaSr 1.0";
Req.Method = "GET";

HttpWebResponse res = (HttpWebResponse)Req.GetResponse();
Stream stream = res.GetResponseStream();
StreamReader sr = new StreamReader(stream, Encoding.GetEncoding("GB2312"));
string strResult = sr.ReadToEnd();

__VIEWSTATE = "";

//POST

ttpWebRequest Req = null;
HttpWebResponse Res = null;
string url = "url";
try
{
Req = (HttpWebRequest)WebRequest.Create(url);
Req.CookieContainer = cookie;
Req.ContentType = "application/x-www-form-urlencoded; charset=UTF-8";
Req.Referer = "refer";
Req.Accept = "*/*";
Req.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.122 Safari/537.36 SE 2.X MetaSr 1.0";
Req.Method = "POST";
Req.AllowAutoRedirect = true;

string strPOST =

"__VIEWSTATE=%2FwEPDwUKMTExOTM4OTA4OGRkahJa4sL9gWLcydx9DZkzEk0ABr0%3D&__VIEWSTATEGENERATOR=FBE090BD&__EVENTVALIDATION=%2FwEdAAl0D4J9xNWB%2BgcnFKWvnZoN4%2FQfLsHQGYVYSXJhGOfKYCKgvRijP5cR7wp7WnFU4dtC8mj0x2qcszeBnohw4I4n65iJzCLHkVO2kGDkjn3iKMyQ43FRB5dc45mq3hyL0EOtZ2K%2B50k8QAti%2BLvHoyZfkO876gXACs%2B2TTFGifuAvAs3xkef%2Fs4NIkhXFYD8aPQC3LKKA9YWz0%2FqkDJOQl0%2B1GMPZw%3D%3D&ctl00%24ContentPlaceHolder1%24hideNeedValidateCode=True&mobilePhone=&emailAddress="+ this.txtU.Text.Trim() + "&userPassword=asdasd12bb3&rePassword=asdasd12bb3&verifyCode="
+ this.txtCode.Text.Trim() + "&ctl00%24ContentPlaceHolder1%24reg_btnSubmit=%CF%C2%D2%BB%B2%BD%A3%AC%D1%E9%D6%A4&hidEmail="
+ this.txtU.Text.Trim() + "&hidAction=0&hidPhone=&ctl00%24ContentPlaceHolder1%24hidEmailRetcode=2&ctl00%24ContentPlaceHolder1%24hidEmailValue="
+ this.txtU.Text.Trim() + "&hidCode=&ctl00%24ContentPlaceHolder1%24hidCheckMobileRetcode=0&ctl00%24ContentPlaceHolder1%24hidMobilePhone=0&ctl00%24ContentPlaceHolder1%24hidVerifyCode=0&ctl00%24ContentPlaceHolder1%24hidImgCodeDatahash=k3Y4QkdW1491533255006";
byte[] btys = Encoding.UTF8.GetBytes(strPOST);

Stream stream = Req.GetRequestStream();
stream.Write(btys, 0, btys.Length);
stream.Flush();
Res = (HttpWebResponse)Req.GetResponse();
Stream responseStream = Res.GetResponseStream();

//将网页获取的流读成string
StreamReader sr = new StreamReader(responseStream, Encoding.GetEncoding("GB2312"));
string strResult = sr.ReadToEnd();
this.TXTmsg.Text = (strResult);

转载于:https://my.oschina.net/u/3229176/blog/874706