大家帮忙看看我这个程序需要怎么修改

Question

初学java，刚学到网络这节，试着写了个服务器端和客户端，调试了下，总是输出不了。大家看看要怎么修改，谢谢。 
import java.net.*;
import java.io.*;
public class TestSever{    public static void main(String[] args) throws Exception{        ServerSocket a=new ServerSocket(8888);        while(true){            Socket s=a.accept();            System.out.println("a client connect!");            InputStream x=s.getInputStream();            InputStreamReader p=new  InputStreamReader(x);            BufferedReader h=new BufferedReader(p);            System.out.println(h.readLine());            h.close();            p.close();            x.close();
        }
    }
}
import java.net.*;
import java.io.*;public class TestClient{    public static void main(String[] args) throws Exception{        Socket s=new Socket("127.0.0.1",8888);        OutputStream w=s.getOutputStream();        BufferedOutputStream q=new BufferedOutputStream(w);
        String l;        InputStreamReader c=new InputStreamReader(System.in);        BufferedReader d=new BufferedReader(c);                while(true){        l=d.readLine();        System.out.println(d.readLine());        q.write(l.getBytes(),0,l.length()-1);
                }        q.close();    }
}

Answer 1

肯定不可以了 一台机子模拟同事模拟客户端和服务端 2个main怎么同事执行啊？

Answer 2

public static void main(String args[])
{
int port = Integer.parseInt(args[0]);

try
{
ServerSocket srv = new ServerSocket(port);
System.err.println("Echo server start at port: "+port);

while (true)
{
Socket clnt = srv.accept();
DataInputStream dataIn=new DataInputStream(new BufferedInputStream(clnt.getInputStream()));
DataOutputStream dataOut=new DataOutputStream(new BufferedOutputStream(clnt.getOutputStream()));

System.out.println("Clinet connected from: "+clnt.getInetAddress());
String req=dataIn.readUTF();
String send = req.toUpperCase();
dataOut.writeUTF(send);
dataOut.flush();

dataIn.close();
dataOut.close();
}
}
catch(IOException ioe)
{
System.err.println(ioe);
}
}

Answer 3

你都没有write，服务器怎么收？？？
加一句
w.print("hello");

Answer 4

new PrintStream(w).print("hello");

Answer 5

1楼正解.在同一台机子上是不能同时模拟两个Mian()方法的..

Answer 6

我们上课模拟的时候 也是自己在自己的机器上模拟 SERVER AND CLIEN 端的 
不是这个原因吧

Answer 7

我们上课模拟的时候 也是自己在自己的机器上模拟 SERVER AND CLIEN 端的 
不是这个原因吧

Answer 8

楼主.请参考下我编的:import java.io.*;
import java.net.*;
public class TalkServer { public static void main(String[] args) {
ServerSocket server=null;
String line;
try{
server = new ServerSocket(4550);
}catch(Exception e){
System.out.println("Can't connect to the Client Socket!");
System.exit(0);
}
Socket socket=null;
try {
socket = server.accept();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader is = new BufferedReader(new InputStreamReader(socket.getInputStream()));
PrintWriter os = new PrintWriter(new OutputStreamWriter(socket.getOutputStream()));
BufferedReader sin = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Client:"+is.readLine());
line = sin.readLine();
if(!line.equals("bye")){
os.println(line);
os.flush();
System.out.println("Server:"+line);
System.out.println("Client:"+is.readLine());
line=sin.readLine();
}
is.close();
os.close();
sin.close();

} catch (IOException e) {

e.printStackTrace();
}

}}

Answer 9

楼主.请参考下我编的:import java.io.*;
import java.net.*;
public class TalkServer { public static void main(String[] args) {
ServerSocket server=null;
String line;
try{
server = new ServerSocket(4550);
}catch(Exception e){
System.out.println("Can't connect to the Client Socket!");
System.exit(0);
}
Socket socket=null;
try {
socket = server.accept();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader is = new BufferedReader(new InputStreamReader(socket.getInputStream()));
PrintWriter os = new PrintWriter(new OutputStreamWriter(socket.getOutputStream()));
BufferedReader sin = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Client:"+is.readLine());
line = sin.readLine();
if(!line.equals("bye")){
os.println(line);
os.flush();
System.out.println("Server:"+line);
System.out.println("Client:"+is.readLine());
line=sin.readLine();
}
is.close();
os.close();
sin.close();

} catch (IOException e) {

e.printStackTrace();
}

}}

Answer 10

import java.io.*;
import java.net.*;
public class TalkClient { public static void main(String[] args) {
Socket socket =null;
try{
socket = new Socket("127.0.0.1",4550);
BufferedReader sin = new BufferedReader(new InputStreamReader(System.in));
PrintWriter os = new PrintWriter(socket.getOutputStream());
BufferedReader is = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String readline;
readline = sin.readLine();
while(!readline.equals("bye")){
os.println(readline);
os.flush();
System.out.println("Client:"+readline);
System.out.println("Server"+is.readLine());
readline = sin.readLine();
}
os.close();
is.close();
socket.close();
}catch(Exception e){
e.printStackTrace();
System.out.println("Error"+e);
} }}网速原因.多发了一次服务端的..见谅.