一个简单的C/S试验程序，调试不通，-Java教程-爱易网页

一个简单的C/S试验程序，调试不通，

日期：2014-05-20　浏览次数：21021 次

一个简单的C/S试验程序，调试不通，求助。
下面是Server和Client的程序，想要实现的功能是打开两个cmd窗口分别运行两个程序以后，Client端和Server端的对话。

程序如下：

Server端：

Java code

import java.net.*;
import java.io.*;

public class TalkServer
{
    public static void main(String[] args)
    {
        try
        {
            ServerSocket ss = null;
            try
            {
                ss = new ServerSocket(8889);
            }
            catch(Exception e)
            {
                System.out.println("Cannot listen to: " + e);
            }
            String line;
            Socket s = null;
            try
            {
                s = ss.accept();
            }
            catch(IOException ie)
            {
                System.out.println("IOError: " + ie);
            }
            
            BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
            PrintWriter pw = new PrintWriter(s.getOutputStream());
            BufferedReader typeIn = new BufferedReader(new InputStreamReader(System.in));
            
            //System.out.println("Client: " + br.readLine());
            line = typeIn.readLine();
            
            while(!line.equals("exit"))
            {
                pw.println(line);
                pw.flush();
                System.out.println("Server: " + line);
                System.out.println("Client: " + br.readLine());
                line = typeIn.readLine();
            }
            br.close();
            pw.close();
            s.close();
            ss.close();
                
        }
        catch(Exception  e)
        {
            System.out.println("Error: " + e);
        }
    }
}

Client端：

Java code

import java.net.*;
import java.io.*;

public class TalkClient
{
    public static void main(String[] args)
    {
        try
        {
            Socket s = null;
            try
            {
                s = new Socket("127.0.0.1", 8889);
            }
            catch(IOException ie)
            {
                System.out.println("Error: " + ie);
            }
            
            BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
            PrintWriter pw = new PrintWriter(s.getOutputStream());
            BufferedReader typeIn = new BufferedReader(new InputStreamReader(System.in));
            //System.out.println("Server: " + br.readLine());
            String line = typeIn.readLine();
            
            while(!line.equals("exit")    )
            {
                pw.println(line);
                pw.flush();
                System.out.println("Client: " + line);
                System.out.println("Server: " + br.readLine());
                line = typeIn.readLine();
            }
            br.close();
            pw.close();
            s.close();
            
                
        }
        catch(Exception  e)
        {
            System.out.println("Error: " + e);
        }
    }
}

打开以后输入任何字符都不能显示。

------解决方案--------------------

Java code


//刚那个是Server的，这个是Client。毕竟是刚学时写的，LZ将就对比下看问题在哪。

import java.net.*;
import java.util.Scanner;
import java.io.*;

public class Client {
    public static void main(String[] args) {
        try {
            Socket socket = new Socket("localhost",1234);
            Thread t = new Thread(new clientWriter(socket));
            t.start();
            Thread t1 = new Thread(new clientReader(socket));
            t1.start();
        }catch(Exception e) {
            e.printStackTrace();
        }
    }
}

class clientWriter implements Runnable {
    private Socket socket;
    public clientWriter(Socket socket) {
        this.socket = socket;
    }
    public void run() {
        Scanner in = new Scanner(System.in);
        try {
        DataOutputStream output = new DataOutputStream(socket.getOutputStream());
        while(true) {
            String info = in.nextLine();
            output.writeUTF(info);
            if(info.equalsIgnoreCase("bye")) {
                System.out.println("自己下线，退出程序");
                System.exit(0);
            }
        }
        }catch(Exception e) {
            e.printStackTrace();
        }
    }
}

class clientReader implements Runnable {
    private Socket socket;
    public clientReader(Socket socket) {
        this.socket = socket;
    }
    public void run() {
        try {
            DataInputStream input = new DataInputStream(socket.getInputStream());
            while(true) {
                String info = input.readUTF();
                System.out.println("对方说:" + info);
                if(info.equalsIgnoreCase("bye")) {
                    System.out.println("对方下线了，结束通话…");
                    System.exit(0);
                }
            }            
        }catch(Exception e) {
            e.printStackTrace();
        }
    }
}

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一个简单的C/S试验程序，调试不通，

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