套接字编程~~救命哪~~|那美克星

Founia

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我玩过

正在玩

爱好

只看楼主倒序阅读楼主发表于: 2008-01-02

老师要我们做个基于TCP连接的简单的服务器端和客户端.
明天就要交!!
网上源代码一堆,要不就编译错误,要不就看不懂,要不就太长~~
要死人了~~

哪位大侠能帮帮我呀..
要C语言编的,我只看得懂这个....

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Founia对你很友善,看起来是个可以轻易出错的FC.

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zorro

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只看该作者沙发发表于: 2008-01-02

TCP客户端

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.net.UnknownHostException;
import java.net.Socket;
import java.net.InetAddress;

public class TCPEchoClient
{
private static InetAddress host;
private static final int PORT = 1234;

public static void main(String[] args)
{
try
{
host = InetAddress.getLocalHost();
}
catch(UnknownHostException e)
{
System.out.println("Host ID not found!");
System.exit(1);
}
run();
}

private static void run()
{
Socket link = null; //Step 1.

try
{
link = new Socket(host,PORT); //Step 1.

BufferedReader in =
new BufferedReader
(new InputStreamReader
   (link.getInputStream()));//Step 2.

PrintWriter out = new PrintWriter(
link.getOutputStream(),true);    //Step 2.

//Set up stream for keyboard entry...
BufferedReader userEntry =
new BufferedReader
   (new InputStreamReader(System.in));

String message, response;
do
{
System.out.print("Enter message: ");
message = userEntry.readLine();
out.println(message); //Step 3.
response = in.readLine(); //Step 3.
System.out.println("\nSERVER> " + response);
}while (!message.equals("***CLOSE***"));
}
catch(IOException e)
{
e.printStackTrace();
}

finally
{
try
{
System.out.println(
"\n* Closing connection... *");
link.close(); //Step 4.
}
catch(IOException e)
{
System.out.println("Unable to disconnect!");
System.exit(1);
}
}
}
}

zorro

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只看该作者板凳发表于: 2008-01-02

TCP服务器端

import java.io.PrintWriter;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;

public class TCPEchoServer
{
private static ServerSocket servSock;
private static final int PORT = 1234;

public static void main(String[] args)
{
System.out.println("Opening port...\n");
try
{
servSock = new ServerSocket(PORT); //Step 1.
}
catch(IOException e)
{
System.out.println("Unable to attach to port!");
System.exit(1);
}
do
{
run();
}while (true);
}

private static void run()
{
Socket link = null; //Step 2.
try
{
link = servSock.accept(); //Step 2.

BufferedReader in =
new BufferedReader(
new InputStreamReader(
link.getInputStream())); //Step 3.
PrintWriter out = new PrintWriter(
link.getOutputStream(),true); //Step 3.

int numMessages = 0;
String message = in.readLine(); //Step 4.
while (!message.equals("***CLOSE***"))
{
System.out.println("Message received.");
numMessages++;
out.println("Message " + numMessages
+ ": " + message); //Step 4.
message = in.readLine();
}
out.println(numMessages
+ " messages received."); //Step 4.
}
catch(IOException e)
{
e.printStackTrace();
}

finally
{
try
{
System.out.println(
"\n* Closing connection... *");
link.close(); //Step 5.
}
catch(IOException e)
{
System.out.println("Unable to disconnect!");
System.exit(1);
}
}
}
}