我的服務器/監聽器有ADD或沒有耐力;什麼是解藥或prodote?我的服務器/監聽器沒有真正的沙礫
該應用程序用作套接字通信的兩端。對於第一條消息(我在textBox1中輸入「Bla」,然後label1然後讀取「Bla back atcha」,但它在隨後的消息中失敗)似乎工作正常。我有一個應用程序在我的開發機器上運行,另一個在我的第二次嘗試發送郵件時發生錯誤消息(「沒有可以建立連接的原因是因爲目標機器積極拒絕它10.24.93.110:51111「)
當我在另一臺機器上啓動」服務器「實例並在命令行中運行」netstat -a「時,它表示服務器機器正在偵聽我的開發機器在端口51111上。
第一條消息通過後,顯然收到並退回,運行「netstat -a」仍顯示與我的開發機器的連接,但該狀態不再是LISTENING,而是TIME_WAIT。
然後,我嘗試通過另一條消息,我也得到了錯誤消息(如下圖表B)
附件A:源
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Diagnostics;
namespace testSocketSendAndReceive_Nutshell
{
public partial class Form1 : Form
{
string sJerrysIPAddr = "10.24.31.110";
string sMyIPAddr = "10.24.31.128";
string sThisAppFileName = string.Empty;
bool bThisInstanceFunctionsAsServer = false;
internal static Form1 MainSocketPairForm = null;
public Form1()
{
InitializeComponent();
MainSocketPairForm = this;
}
private void Form1_Load(object sender, EventArgs e)
{
sThisAppFileName = System.Diagnostics.Process.GetCurrentProcess().ProcessName;
lblFileName.Text = sThisAppFileName;
// Client and Server code are here combined in one app; however, we want each instance to run as
// just one or the other, so (the .exe functioning as a Server should be renamed with the subString
// "Server" somewhere in the filename):
bThisInstanceFunctionsAsServer = sThisAppFileName.Contains("Server");
if (bThisInstanceFunctionsAsServer)
{
new Thread(Server).Start(); // Run server method concurrently.
Thread.Sleep(500); // Give server time to start.
}
btnSendMsg.Visible = !bThisInstanceFunctionsAsServer;
}
static void Client()
{
using (TcpClient client = new TcpClient(Form1.MainSocketPairForm.sJerrysIPAddr, 51111)) // err here second time
using (NetworkStream n = client.GetStream())
{
BinaryWriter w = new BinaryWriter(n);
w.Write(Form1.MainSocketPairForm.textBox1.Text.ToString());
w.Flush();
Form1.MainSocketPairForm.label1.Text = new BinaryReader(n).ReadString();
}
}
static void Server() // Handles a single client request, then exits.
{
TcpListener listener = new TcpListener(IPAddress.Any, 51111);
listener.Start(); //Only one usage of each socket address (protocol/network address/port) is normally permitted
// got the above err msg with an instance running and listening on jerry's machine
// continues to listen even after shut down...
using (TcpClient c = listener.AcceptTcpClient())
using (NetworkStream n = c.GetStream())
{
string msg = new BinaryReader(n).ReadString();
BinaryWriter w = new BinaryWriter(n);
w.Write(msg + " back atcha!");
w.Flush(); // Must call Flush because we're not disposing the writer.
}
listener.Stop();
}
private void button1_Click(object sender, EventArgs e)
{
Client();
}
private void button2_Click(object sender, EventArgs e)
{
Close();
}
}
}
附件B:完整的錯誤信息
System.Net.Sockets.SocketException未處理 消息=「無法建立連接,因爲目標機器主動拒絕它」10.24.93.110:51111「 Source =」System「 錯誤碼= 10061 NativeErrorCode = 10061 堆棧跟蹤: 在System.Net.Sockets.TcpClient..ctor(字符串主機名,端口的Int32) 在testSocketSendAndReceive_Nutshell.Form1.Client()在 C:\ testSocketSendAndReceive_Nutshell \ testSocketSendAndReceive_Nutshell \ Form1中。 CS:在testSocketSendAndReceive_Nutshell.Form1.button1_Click(對象發件人,EventArgs e)在C線57 :\ testSocketSendAndReceive_Nutshell \ testSocketSendAndReceive_Nutshell \ Form1.cs中:線90在System.Windows.Forms.Control.OnClick(EventArgs的) 在系統。 Windows.Forms.Button.OnClick(EventArgs e) at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) at System.Windows.Forms.Control.WmMouseUp(Message &米,MouseButtons按鈕,點擊的Int32) 在System.Windows.Forms.Control.WndProc(消息&米) 在System.Windows.Forms.ButtonBase.WndProc(消息&米) 在System.Windows.Forms.Button .WndProc(消息&米) 在System.Windows.Forms.Control.ControlNativeWindow.OnMessage(消息&米) 在System.Windows.Forms.Control.ControlNativeWindow.WndProc(消息&米) 在System.Windows.Forms的.NativeWindow.DebuggableCallback(IntPtr hWnd,Int32 msg,IntPtr wparam,IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG & msg) at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID,Int32 reason,Int32 pvLoopData) at System.Windows.Forms.Application.ThreadContext。RunMessageLoopInner(的Int32原因, ApplicationContext的上下文) 在System.Windows.Forms.Application.ThreadContext.RunMessageLoop(的Int32原因,ApplicationContext的 上下文) 在System.Windows.Forms.Application.Run(表格的MainForm) 在testSocketSendAndReceive_Nutshell.Program 。主要()在 C:\ testSocketSendAndReceive_Nutshell \ testSocketSendAndReceive_Nutshell \ Program.cs的:線18 在System.AppDomain._nExecuteAssembly(大會組件,字串[] args) 在System.AppDomain.ExecuteAssembly(字符串assemblyFile,證據assemblySecurity,字符串[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ThreadHelper.ThreadStart_Context(Obje CT狀態) 在System.Threading.ExecutionContext.Run(ExecutionContext中的ExecutionContext,ContextCallback回調, 對象狀態) 在System.Threading.ThreadHelper.ThreadStart() 的InnerException:
這裏不需要調用'Close()' - 它在'using'語句中,所以它被自動處理。循環是問題。 – 2012-01-06 17:25:52
是的,你是對的(當然) – 2012-01-06 17:27:09