【发布时间】:2011-07-28 10:51:31
【问题描述】:
我正在用 C# 编写用于套接字通信的小程序。这是我的代码: 客户端(数据发送者):
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
namespace Client
{
class Program
{
static Socket sck; //vytvor socket
static void Main(string[] args)
{
sck = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint localEndPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 1234); //nastav premennú loacalEndPoint na lokálnu ip a port 1234
try //Skús sa
{
sck.Connect(localEndPoint); // pripojiť
}
catch { //ak sa to nepodarí
Console.Write("Unable to connect to remote ip end point \r\n"); //vypíš chybovú hlášku
Main(args);
}
Console.Write("Enter text: ");
string text = Console.ReadLine();
byte[] data = Encoding.ASCII.GetBytes(text);
sck.Send(data);
Console.Write("Data sent!\r\n");
Console.Write("Press any key to continue...");
Console.Read();
sck.Close();
}
}
}
服务器(数据接收器):
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
namespace Server
{
class Program
{
static byte[] Buffer { get; set; } //vytvor Buffer
static Socket sck;
static void Main(string[] args)
{
sck = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); //vytvor Socket
sck.Bind(new IPEndPoint(0, 1234));
sck.Listen(80);
Socket accepted = sck.Accept();
Buffer = new byte[accepted.SendBufferSize];
int bytesRead = accepted.Receive(Buffer);
byte[] formatted = new byte[bytesRead]; //vytvor novú Array a jej dĺžka bude dĺžka priatých infomácii
for(int i=0; i<bytesRead;i++){
formatted[i] = Buffer[i]; //načítaj z Buffer do formatted všetky priate Bajty
}
string strData = Encoding.ASCII.GetString(formatted); //z ASCII hodnôt urob reťazec
Console.Write(strData + "\r\n"); //vypíš data
sck.Close(); //ukonči spojenie
}
}
} 我的问题是:在客户端程序中,我将端口 1234 上的数据发送到本地 ip。但我无法连接。我试过80端口,它已经连接了。那么请问,我的问题在哪里?如何连接到每个人的端口?请忽略代码中的 cmets,请帮助我。
【问题讨论】:
-
这些程序在安装时注册(解锁)端口。
-
我现在不工作。我有代码,我关闭了所有防火墙。哪里有问题?
标签: c# visual-studio sockets connection port