REST POST到WCF服务

我想发布到WCF服务。我收到此错误 “在调用[Begin] GetResponse之前，您必须将ContentLength字节写入请求流。”REST POST到WCF服务

代码：

ASCIIEncoding encoding = new ASCIIEncoding(); 

string postData = "patron=WTM"; 
byte[] data = encoding.GetBytes(postData); 

var httpWebRequest = (HttpWebRequest)WebRequest.Create("http://localhost:8733/FileShareWebServices/UploadFile"); 
httpWebRequest.ContentType = "application/json; charset=utf-8"; 
httpWebRequest.Method = "POST"; 
httpWebRequest.ContentLength = data.Length; 
httpWebRequest.GetRequestStream(); 

var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse(); 
using (var streamReader = new StreamReader(httpResponse.GetResponseStream())) 
{ 
    var result = streamReader.ReadToEnd(); 
}

来源

2017-04-04 user1836442

我想你需要经过移动的GetResponse关闭流（在StreamReader的using语句之后移动它） – Sparrow

@Sparrow - 这将不起作用，很可能会导致OP代码无法编译。对'GetResponse'的调用用于在'using'块中创建'StreamReader'。 – Tim

您发布的代码不写什么，其最有可能是错误的原因的请求流。一旦你的请求流，你应该写它的内容和长度，就像这样：

using (Stream requestStream = httpWebRequest.GetRequestStream) 
{ 
    requestStream.Write(data, 0, data.Length); 
}

完整的代码应该是这样的：

ASCIIEncoding encoding = new ASCIIEncoding(); 

string postData = "patron=WTM"; 
byte[] data = encoding.GetBytes(postData); 

var httpWebRequest = (HttpWebRequest)WebRequest.Create("http://localhost:8733/FileShareWebServices/UploadFile"); 
httpWebRequest.ContentType = "application/json; charset=utf-8"; 
httpWebRequest.Method = "POST"; 
httpWebRequest.ContentLength = data.Length; 
//httpWebRequest.GetRequestStream(); 
// Code to write data to the stream 
using (Stream requestStream = httpWebRequest.GetRequestStream) 
{ 
    requestStream.Write(data, 0, data.Length); 
} 

var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse(); 
using (var streamReader = new StreamReader(httpResponse.GetResponseStream())) 
{ 
    var result = streamReader.ReadToEnd(); 
}

来源

2017-04-04 18:26:20 Tim

谢谢。我一直得到这个错误 – user1836442

谢谢我保持这个错误“远程服务器返回错误（404）没有找到 – user1836442

@ user1836442 - 听起来像你有服务或端点的问题。 – Tim

REST POST到WCF服务

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