Request URL: https://www.baidu.com/
Request Method: GET
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Accept-Encoding: gzip, deflate, br
Accept-Language: zh-CN,zh;q=0.9,en;q=0.8
Connection: keep-alive
Cookie: BAIDUID=43E2CBB543131B011BC1861E7CDD83DB:FG=1
Host: www.baidu.com
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36body data

Status Code: 200 OK
Remote Address: 111.13.100.91:443
Referrer Policy: no-referrer-when-downgrade
Bdpagetype: 1
Bdqid: 0xecff8dba0009a0bc
Cache-Control: private
Connection: Keep-Alive
Content-Type: text/html
Cxy_all: baidu+5bd9cbe0adf9080de3f7682cf8f45af1
Date: Fri, 19 Apr 2019 13:44:36 GMT
Expires: Fri, 19 Apr 2019 13:44:05 GMT
Server: BWS/1.1
Set-Cookie: BIDUPSID=43E2CBB543131B011BC1861E7CDD83DB; expires=Thu, 31-Dec-37 23:55:55 GMT; max-age=2147483647; path=/; domain=.baidu.com
Set-Cookie: PSTM=1555681476; expires=Thu, 31-Dec-37 23:55:55 GMT; max-age=2147483647; path=/; domain=.baidu.com

body data

{"sites": [{ "name":"菜鸟教程" , "url":"www.runoob.com" }, { "name":"google" , "url":"www.google.com" }, { "name":"微博" , "url":"www.weibo.com" }]
}

    //客户端调用void clientPost(){using (var client = new System.Net.WebClient()){var postParam = new NameValueCollection();//传递参数postParam.Add("code", "123");postParam.Add("name", "tom);//http body部分就变为 code=123&name=tomvar responsebytes = client.UploadValues(uri, postParam);string strResult = System.Text.Encoding.UTF8.GetString(responsebytes);}}//服务端:string ServerDeal(string code, string name){//http body数据部分映射为参数：code为123,name为tomreturn "ok";}