如某个页面有个如下的表单(Form):
<form name="form1" action="http://www.breakn.com/login.asp" method="post">
<input type="text" name="userid" value="">
<input type="password" name="password" value="">
</form>
从表单可看到表单有两个表单域,一个是userid另一个是password,所以以POST形式提交的数据应该包含有这两项。
其中POST的数据格式为:
表单域名称1=值1&表单域名称2=值2&表单域名称3=值3……
要注意的是“值”必须是经过HTMLEncode的,即不能包含“<>=&”这些符号。
本例子要提交的数据应该是:
userid=value1&password=value2
用C#写提交程序:
string strId = "guest";
string strPassword= "123456";
ASCIIEncoding encoding=new ASCIIEncoding();
string postData="userid="+strId;
postData += ("&password="+strPassword);
byte[] data = encoding.GetBytes(postData);
// Prepare web request
HttpWebRequest myRequest =
(HttpWebRequest)WebRequest.Create("http://www.here.com/login.asp");
myRequest.Method = "POST";
myRequest.ContentType="application/x-www-form-urlencoded";
myRequest.ContentLength = data.Length;
Stream newStream=myRequest.GetRequestStream();
// Send the data.
newStream.Write(data,0,data.Length);
newStream.Close();
// Get response
HttpWebResponse myResponse=(HttpWebResponse)myRequest.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream(),Encoding.Default);
string content = reader.ReadToEnd();
Response.Write(content);
![](http://www.fyis.cn/aggbug.ashx?id=d17631e5-e6f5-43a0-891a-2a43e49cfdf0)
文章来源:http://www.fyis.cn/2007/11/01/C%e5%ae%9e%e7%8e%b0%e9%80%9a%e8%bf%87HttpWebRequest%e5%8f%91%e9%80%81POST%e8%af%b7%e6%b1%82%e5%ae%9e%e7%8e%b0%e7%bd%91%e7%ab%99%e8%87%aa%e5%8a%a8%e7%99%bb%e9%99%86.aspx
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文章来源:http://www.fyis.cn/2007/11/01/C%e5%ae%9e%e7%8e%b0%e9%80%9a%e8%bf%87HttpWebRequest%e5%8f%91%e9%80%81POST%e8%af%b7%e6%b1%82%e5%ae%9e%e7%8e%b0%e7%bd%91%e7%ab%99%e8%87%aa%e5%8a%a8%e7%99%bb%e9%99%86.aspx