流不可读 - 没有处理，为什么这不起作用？

Question

我有以下代码：

// Create POST data and convert it to a byte array. 
string postData = "name=t&description=tt"; 
byte[] byteArray = Encoding.UTF8.GetBytes(postData); 
// Set the ContentType property of the WebRequest. 
request.ContentType = "application/x-www-form-urlencoded"; 
// Set the ContentLength property of the WebRequest. 
request.ContentLength = byteArray.Length; 
// Get the request stream. 
using (StreamReader reader = new StreamReader(request.GetRequestStream())) 
{ 
    string s = reader.ReadToEnd(); 
} 

当流量击中使用（.....）语句，我得到以下异常：

流未读

我想将整个请求流读入一个字符串，没有任何东西被关闭，所以代码应该工作？

Answer 1

您写入请求流并从响应流中读取。

string postData = "name=t&description=tt"; 
    byte[] byteArray = Encoding.UTF8.GetBytes(postData); 
    // Set the ContentType property of the WebRequest. 
    request.ContentType = "application/x-www-form-urlencoded"; 
    // Set the ContentLength property of the WebRequest. 
    request.ContentLength = byteArray.Length; 
    // Get the request stream. 

    var stream = request.GetRequestStream(); 
    stream.Write(byteArray, 0, byteArray.Length); 

Answer 2

流不可读，因为它打算写入。看到这个链接的一个简单的例子：

http://www.netomatix.com/httppostdata.aspx