无法建立连接,因为目标计算机主动拒绝它127.0.0.1:3446
我使用的是WCF4.0模板-
REST。我正在尝试一种使用流上传文件的方法。
问题总是发生在
Stream serverStream = request.GetRequestStream();
流类:
namespace LogicClass{
public class StreamClass : IStreamClass
{
public bool UploadFile(string filename, Stream fileStream)
{
try
{
FileStream fileToupload = new FileStream(filename, FileMode.Create);
byte[] bytearray = new byte[10000];
int bytesRead, totalBytesRead = 0;
do
{
bytesRead = fileStream.Read(bytearray, 0, bytearray.Length);
totalBytesRead += bytesRead;
} while (bytesRead > 0);
fileToupload.Write(bytearray, 0, bytearray.Length);
fileToupload.Close();
fileToupload.Dispose();
}
catch (Exception ex) { throw new Exception(ex.Message); }
return true;
}
}
}
REST项目:
[WebInvoke(UriTemplate = "AddStream/{filename}", Method = "POST", BodyStyle = WebMessageBodyStyle.Bare)]public bool AddStream(string filename, System.IO.Stream fileStream)
{
LogicClass.FileComponent rest = new LogicClass.FileComponent();
return rest.AddStream(filename, fileStream);
}
Windows Form项目:用于测试
private void button24_Click(object sender, EventArgs e){
byte[] fileStream;
using (FileStream fs = new FileStream("E:\\stream.txt", FileMode.Open, FileAccess.Read, FileShare.Read))
{
fileStream = new byte[fs.Length];
fs.Read(fileStream, 0, (int)fs.Length);
fs.Close();
fs.Dispose();
}
string baseAddress = "http://localhost:3446/File/AddStream/stream.txt";
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(baseAddress);
request.Method = "POST";
request.ContentType = "text/plain";
Stream serverStream = request.GetRequestStream();
serverStream.Write(fileStream, 0, fileStream.Length);
serverStream.Close();
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
int statusCode = (int)response.StatusCode;
StreamReader reader = new StreamReader(response.GetResponseStream());
}
}
我已关闭防火墙和Internet连接,但该错误仍然存在。有没有更好的测试上传方法的方法?
堆栈跟踪:
在System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure,Socket
s4,Socket s6,Socket&socket,IPAddress&地址,ConnectSocketState状态,IAsyncResult
asyncResult,Int32超时,例外和例外)
回答:
“主动拒绝”表示您尝试连接时主机发送了重置而不是确认。因此,这不是您的代码中的问题。有防火墙阻止了连接,或者承载服务的进程没有在该端口上侦听。这可能是因为它根本没有运行,或者是因为它在其他端口上监听。
一旦开始托管服务的过程,请尝试netstat -anb
(需要管理员特权)以验证其是否正在运行并正在侦听预期的端口。
更新:在Linux上,您可能需要这样做netstat -anp
。
以上是 无法建立连接,因为目标计算机主动拒绝它127.0.0.1:3446 的全部内容, 来源链接: utcz.com/qa/433967.html