java网络编程TCP聊天全双工
我正在服务器和客户端之间实现一个简单的tcp聊天。我使用多线程,以便服务器和客户端可以同时发送和接收数据(全双工)。该程序可以工作,但如果服务器有一个控制台,既可以键入发送消息,也可以显示接收消息(客户端的情况相同),则当从另一方收到消息时,我无法编辑应发送给服务器或客户端的键入消息。例如: 运行(服务器控制台): 输入消息以发送客户端: 你: 客户端:hi-server 客户端:再见服务器。 对于这个例子,我键入了一条消息,当客户机已经说hi server bye server时发送给客户机。在收到客户的邮件之前,我看到了我键入的内容,但在收到邮件之后,我既看不到邮件,也无法编辑邮件 我只能使用控制台,因为我不擅长GUI,我希望发送和接收数据都使用相同的控制台 程序代码如下所示java网络编程TCP聊天全双工,java,tcp,chat,Java,Tcp,Chat,我正在服务器和客户端之间实现一个简单的tcp聊天。我使用多线程,以便服务器和客户端可以同时发送和接收数据(全双工)。该程序可以工作,但如果服务器有一个控制台,既可以键入发送消息,也可以显示接收消息(客户端的情况相同),则当从另一方收到消息时,我无法编辑应发送给服务器或客户端的键入消息。例如: 运行(服务器控制台): 输入消息以发送客户端: 你: 客户端:hi-server 客户端:再见服务器。 对于这个例子,我键入了一条消息,当客户机已经说hi server bye server时发送给客户机。
import java.net.*;
import java.io.*;
import java.util.Scanner;
public class ThreadServerSend implements Runnable {
String d;
Socket s1 = null;
Scanner sc = new Scanner(System.in);
public ThreadServerSend(Socket s)
{
s1=s;
}
public void run()
{
System.out.println("input msg to send client: ");
while (true){
try{
PrintStream p = new PrintStream(s1.getOutputStream());
System.out.println("you: ");
d=sc.nextLine();
p.println(d);
if (d.charAt(d.length()-1)=='.'){
s1.close();
break;}
}
catch(IOException e){}
}
}
}
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.Socket;
import java.util.Scanner;
public class ThreadServerReceive implements Runnable {
String m;
Socket s2 = null;
Scanner sc = new Scanner(System.in);
public ThreadServerReceive(Socket s)
{
s2=s;
}
public void run()
{
while (true){
try{
BufferedReader b = new BufferedReader(new InputStreamReader(s2.getInputStream()));
m = b.readLine();
System.out.println("client: "+m);
if (m.charAt(m.length()-1)=='.'){
s2.close();
break;}}
catch(IOException e){}
}
}
}
import java.io.*;
import java.net.*;
import java.util.*;
public class Server {
public static void main(String[] args) throws UnknownHostException, IOException{
// TODO Auto-generated method stub
ServerSocket s = new ServerSocket(444);
Socket s1 = s.accept();
new Thread(new ThreadServerSend(s1)).start();
ServerSocket s4 = new ServerSocket(443);
Socket s2=s4.accept();
new Thread(new ThreadServerReceive(s2)).start();
}
}
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.Socket;
import java.util.Scanner;
public class ThreadClientSend implements Runnable {
String d;
Socket s1 = null;
Scanner sc = new Scanner(System.in);
public ThreadClientSend(Socket s)
{
s1=s;
}
public void run()
{
System.out.println("Input msg to send server: ");
while (true){
try{
PrintStream p = new PrintStream(s1.getOutputStream());
System.out.println("you: ");
String d = new Scanner(System.in).nextLine();
p.println(d);
if (d.charAt(d.length()-1)=='.'){
s1.close();
break;}
}
catch(IOException e){}
}
}
}
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.Socket;
import java.util.Scanner;
public class ThreadClientReceive implements Runnable {
String m;
Socket s1 = null;
Scanner sc = new Scanner(System.in);
public ThreadClientReceive (Socket s)
{
s1=s;
}
public void run()
{
while (true){
try{
BufferedReader b = new BufferedReader(new InputStreamReader(s1.getInputStream()));
m= b.readLine();
System.out.println("Server: "+m);
if (m.charAt(m.length()-1)=='.')
{
s1.close();
break;
}
}
catch(IOException e){}
}
}
}
import java.io.*;
import java.net.*;
import java.util.*;
public class Client {
public static void main(String[] args) throws UnknownHostException, IOException{
// TODO Auto-generated method stub
Socket s1= new Socket("localhost",444);
Socket s2 = new Socket("localhost",443);
new Thread(new ThreadClientReceive(s1)).start();
new Thread(new ThreadClientSend(s2)).start();
}
}
有点晚了,但我实际上为我的编程课提供了这个聊天客户端的工作版本。我想我还是把它贴在这里吧。我将TCP(全双工)与多线程结合使用,并使其在控制台中工作。小问题是您看不到自己的名字(因为控制台只有一个活动行),但在其他方面它工作得很好 服务器(客户端大致相同,显然
Sockets
是普通套接字,而不是ServerSockets
):
import java.net.*;
导入javax.swing.*;
导入java.awt.*;
导入java.util.*;
导入java.io.*;
导入java.awt.event.*;
导入java.awt.geom.*;
导入java.awt.image.*;
@抑制警告(“串行”)
公共类serverProgII扩展线程
{
私有静态ObjectOutputStream oos;
私有静态对象输出流ois;
专用静态套接字连接;
私有静态服务器套接字服务器;
私有静态字符串ip,clientIP,textin,exitword=“exit”;
专用静态网络消息n消息;
私有静态布尔连接=false;
私有静态布尔值done=false;
私有静态字符串myName=“”;
专用静态整数计数器=0;
公共静态布尔启动=false;
公共字符串类型;
公共静态void main(字符串[]args)
{
试一试{
BufferedReader brin=新的BufferedReader(新的InputStreamReader(System.in));
System.out.print(“输入您的姓名:>”;//向DOS窗口发送提示
myName=brin.readLine();//读入用户输入
setupConnection();
setupStreams();
开始=真;
}捕获(例外e){
System.out.println(“设置流和连接时出现问题!”);
}
serverProgII发送方=新的serverProgII(“发送方”);
serverProgII接收器=新的serverProgII(“接收器”);
sender.start();
receiver.start();
}
公共服务器程序II(字符串t)
{
超级();
类型=t;
}
公开募捐{
while(启动){
开关(类型){
“发件人”一案:
发送者();
打破
案例“接收人”:
接收器();
打破
}
试一试{
Thread.sleep(500);//毫秒
}捕获(例外e){}
}
}
/*runServer()
这是所有实际工作完成的地方。
*/
公共无效发送者()
{
试一试{
BufferedReader inn=新的BufferedReader(新的InputStreamReader(System.in));
textin=inn.readLine();
发送数据(文本输入);
if(textin.equals(exitword))//如果在关闭服务器时键入“exit”。
{
开始=错误;
服务器关闭();
}
}
捕获(例外e){
e、 printStackTrace();
}
}
公共接管人(){
试一试{
getData();
}捕获(例外e){
System.out.println(“获取数据时出错”);
}
}
//设置连接
公共静态void setupConnection()引发IOException
{
System.out.println(“服务器模式激活”);
server=newserversocket(8000);//在端口8000处创建套接字
System.out.println(“等待连接…”);
connection=server.accept();//等待连接
System.out.println(“接收到的连接:+connection.getInetAddress());
clientIP=”“+connection.getInetAddress();//打印出客户端IP地址
}//setupconnection()
//设置流连接
公共静态void setupStreams()引发IOException
{
//开河
System.out.println(“流设置”);
oos=newObjectOutputStream(connection.getOutputStream());//构造对象输出流
ois=newObjectInputStream(connection.getInputStream());
oos.flush();
}//setupStreams()
//写入/发送网络数据的方法
公共void sendData(字符串toSend)引发IOException
{
尝试
{
nmessage=新的网络消息(myName,toSend);
oos.writeObject(n消息);
}//试一试
捕获(IOException IOException)
{
System.out.println(“sendData中的IO异常”);
}
}//sendData()
//读取网络数据的方法
public void getData()引发IOException
{
尝试
{
networkmessagein=(networkmessage)(ois.readObject());
System.out.println(messageIn.ipnum+“有点晚了,但我实际上为我的编程类想出了这个聊天客户端的一个工作版本。我想我也可以在这里发布它。我使用了TCP(全双工)和多线程,并且我让它在控制台中工作。小问题是你看不到自己的名字(因为console只有一条活动线路),但在其他方面它工作得很好
服务器(客户端大致相同,显然Sockets
是普通套接字,而不是ServerSockets
):
import java.net.*;
导入javax.swing.*;
导入java.awt.*;
导入java.util.*;
导入java.io.*;
导入java.awt.event.*;
进口
import java.net.*;
import javax.swing.*;
import java.awt.*;
import java.util.*;
import java.io.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.awt.image.*;
@SuppressWarnings("serial")
public class serverProgII extends Thread
{
private static ObjectOutputStream oos;
private static ObjectInputStream ois;
private static Socket connection;
private static ServerSocket server;
private static String ip, clientIP, textin, exitword ="exit";
private static networkmessage nmessage;
private static boolean connected = false;
private static boolean done = false;
private static String myName = "";
private static int counter = 0;
public static boolean started = false;
public String type;
public static void main(String[] args)
{
try {
BufferedReader brin = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Enter your name:> "); //send prompt to DOS window
myName = brin.readLine(); //read in user input
setupConnection();
setupStreams();
started = true;
} catch (Exception e) {
System.out.println("Problem setting up streams and connection!");
}
serverProgII sender = new serverProgII("sender");
serverProgII receiver = new serverProgII("receiver");
sender.start();
receiver.start();
}
public serverProgII(String t)
{
super();
type = t;
}
public void run() {
while(started) {
switch(type) {
case "sender":
sender();
break;
case "receiver":
receiver();
break;
}
try {
Thread.sleep(500); //milliseconds
} catch(Exception e){}
}
}
/* runServer()
This is where all the actual work gets done.
*/
public void sender()
{
try {
BufferedReader inn = new BufferedReader(new InputStreamReader(System.in));
textin = inn.readLine();
sendData(textin);
if (textin.equals(exitword)) // if "exit" is typed in shutdown the server.
{
started = false;
serverShutdown();
}
}
catch (Exception e) {
e.printStackTrace();
}
}
public void receiver() {
try {
getData();
} catch(Exception e) {
System.out.println("Error getting data");
}
}
//setup connection
public static void setupConnection() throws IOException
{
System.out.println("SERVER MODE ACTIVATED");
server = new ServerSocket (8000); //create the socket at port 8000
System.out.println("Waiting For Connection...");
connection = server.accept(); //wait for a connection
System.out.println("Received connection: "+connection.getInetAddress());
clientIP=""+connection.getInetAddress(); //print out the client IP address
}//setupconnection()
//Setup streams connection
public static void setupStreams() throws IOException
{
//Open up Streams
System.out.println("Streams Setup");
oos=new ObjectOutputStream(connection.getOutputStream()); //construct object output stream
ois=new ObjectInputStream(connection.getInputStream());
oos.flush();
}//setupStreams()
//method to write/send network data
public void sendData(String toSend) throws IOException
{
try
{
nmessage = new networkmessage(myName, toSend);
oos.writeObject(nmessage);
}//try
catch (IOException ioException)
{
System.out.println("IO exception in sendData");
}
}//sendData()
//method to read in network data
public void getData() throws IOException
{
try
{
networkmessage messageIn =(networkmessage)(ois.readObject());
System.out.println(messageIn.ipnum +" << "+messageIn.text);
}//try
catch (Exception exp1)
{
System.out.println("IO exception in sendData");
}
}//getData()
public void serverShutdown()
{
System.out.println("exiting initiated");
try
{
done = true;
textin = "Chat is terminated. Have a nice day.";
oos.close();
server.close();
connection.close();
}
catch (Exception One)
{
System.out.println("bad termination");
}
}
} // class serverProg