Java-項目-000-多人聊天帶界面(界面利用原生swing)-2020-6-25
零、最終效果
一、Client.java
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
import java.util.StringTokenizer;
import java.util.Vector;
public class Client extends JFrame implements ActionListener {
JLabel jL1,jL2,jL3;
JButton jB1,jB2,jB3;
JTextField jF1,jF2,jF3,jF4;
JTextArea jT1;
JList<Client> list;
Socket socket;
BufferedReader cin;
PrintStream cout;
String clientName="";
public Client() {
super("多用戶客戶端");
jL1=new JLabel("服務器IP");
jL1.setBounds(15, 5, 60, 30);
jF1=new JTextField("127.0.0.1",15);
jF1.setBounds(85, 5, 100, 30);
jL2=new JLabel("端口");
jL2.setBounds(200, 5, 40, 30);
jF2=new JTextField("4321",15);
jF2.setBounds(245, 5, 60, 30);
jL3=new JLabel("客戶名稱");
jL3.setBounds(310, 5, 60, 30);
jF3=new JTextField("",15);
jF3.setBounds(375,5,60,30);
jB1=new JButton("連接服務器");
jB1.setBounds(440, 5, 100, 30);
jB1.addActionListener(this);
jF4=new JTextField(" ",30);
jF4.setBounds(15,45,310,30);
jB2=new JButton("發送信息");
jB2.setBounds(335, 45, 100, 30);
jB2.addActionListener(this);
jB3=new JButton("斷開連接");
jB3.setBounds(440, 45, 100,30);
jB3.addActionListener(this);
list=new JList();
JScrollPane jS1=new JScrollPane(list);
jS1.setBounds(15, 85, 250, 120);
jT1=new JTextArea();
JScrollPane jS2=new JScrollPane(jT1);
jS2.setBounds(275, 85, 250, 120);
Container w1Container=this.getContentPane();
w1Container.setLayout(null);
w1Container.add(jL1);
w1Container.add(jL2);
w1Container.add(jL3);
w1Container.add(jB1);
w1Container.add(jB2);
w1Container.add(jB3);
w1Container.add(jF1);
w1Container.add(jF2);
w1Container.add(jF3);
w1Container.add(jF4);
w1Container.add(jS1);
w1Container.add(jS2);
this.setSize(560,250);
this.setVisible(true);
}
public static void main(String[] args) {
Client w1=new Client();
}
class ReadMessageThread extends Thread{
public void run() {
String line="";
while(true) {
try {
line=cin.readLine();
}catch(IOException e) {
jT1.append("輸入輸出異常\n");
}
StringTokenizer st=new StringTokenizer(line,":");
String keyword=st.nextToken();
if(keyword.equalsIgnoreCase("QUIT")) {
try {
socket.close();
jT1.append("接收到服務器同意斷開信息，套接字關閉\n");
}catch(IOException e) {
jT1.append("套接字關閉異常\n");
}
this.stop();
}else if(keyword.equalsIgnoreCase("PEOPLE")) {
Vector imessage=new Vector();
// while(st.hasMoreTokens()) {
// imessage.addElement(st.countTokens());}
while (st.hasMoreTokens())
imessage.add(st.nextToken());
System.out.println(imessage);
list.setListData(imessage);
}else {
String message=st.nextToken("\0");
message=message.substring(1);
jT1.append(message+"\n");
}
}
}
}
public void actionPerformed(ActionEvent e) {
if(e.getSource()==jB1) {
try {
InetAddress ip=InetAddress.getByName(jF1.getText());
int port=Integer.parseInt(jF2.getText());
socket=new Socket(ip,port);
jT1.append("系統提示：與服務器開始連接……\n");
}catch(IOException e1) {
jT1.append("服務器端口打開錯誤\n");
}
if(socket!=null) {
jT1.append("系統提示：與服務器連接成功……\n");
clientName=jF3.getText().trim();
try {
cin=new BufferedReader(new InputStreamReader(socket.getInputStream()));
cout=new PrintStream(socket.getOutputStream());
String str="PEOPLE:"+clientName;
System.out.println(str);
cout.println(str);
ReadMessageThread readThread=new ReadMessageThread();
readThread.start();
}catch(IOException e3) {
jT1.append("輸入輸出異常\n");
}
}
}
if(e.getSource()==jB2) {
String str=jF4.getText();
str="MSG:"+clientName+":"+str;
cout.println(str);
}
if(e.getSource()==jB3) {
String str="QUIT";
cout.println(str);
jT1.append("客戶請求斷開連接\n");
}
}
}
二、Server.java
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
import java.util.Vector;
import java.util.StringTokenizer;
public class Server extends JFrame implements ActionListener{
JLabel jL1,jL2,jL3;
JButton jB1;
JTextField jF1;
JTextArea jT1,jT2;
ServerSocket server;
static Vector<Client> clients=new Vector();
public Server() {
super("多用戶服務器端");
jL1=new JLabel("監聽端口");
jL1.setBounds(15, 5, 60, 30);
jF1=new JTextField("4321",15);
jF1.setBounds(85, 5, 100, 30);
jB1=new JButton("開始監聽");
jB1.setBounds(200, 5, 100, 30);
jB1.addActionListener(this);
jL2=new JLabel("連接信息");
jL2.setBounds(15, 45, 60, 30);
jT1=new JTextArea();
JScrollPane jS1=new JScrollPane(jT1);
jS1.setBounds(15, 75, 310, 100);
jL3=new JLabel("系統信息");
jL3.setBounds(15, 175, 60, 30);
jT2=new JTextArea();
JScrollPane jS2=new JScrollPane(jT2);
jS2.setBounds(15, 205, 310, 100);
Container wlContainer=this.getContentPane();
wlContainer.setLayout(null);
wlContainer.add(jL1);
wlContainer.add(jL2);
wlContainer.add(jL3);
wlContainer.add(jB1);
wlContainer.add(jF1);
wlContainer.add(jS1);
wlContainer.add(jS2);
this.setSize(350, 350);
this.setVisible(true);
}
public static void main(String[] args) {
Server wl=new Server();
}
class ConnectSocket extends Thread{
Socket socket;
public void run() {
while(true) {
try {
socket=server.accept();
}catch(IOException e2) {
jT1.append("客戶連接失敗\n");
}
Client c=new Client(socket);
clients.addElement(c);
if(checkName(c)) {
c.start();
notifyRoom();
}
else {
disconnect(c);
}
}
}
}
class Client extends Thread{
String name;
BufferedReader dis;
PrintStream ps;
Socket socket;
public Client(Socket s) {
socket=s;
try {
dis=new BufferedReader(new InputStreamReader(socket.getInputStream()));
ps=new PrintStream(socket.getOutputStream());
String info=dis.readLine();
StringTokenizer stinfo=new StringTokenizer(info,":");
String head=stinfo.nextToken();
name=stinfo.nextToken();
jT1.append("系統信息："+name+"已經連接\n");
}catch(IOException e){
jT2.append("系統信息：用戶連接出錯\n");
}
}
public void send(String msg) {
ps.println(msg);
ps.flush();
}
public void run() {
while(true) {
String line=null;
try {
line=dis.readLine();
}catch(IOException e) {
jT2.append("系統消息：讀客戶信息出錯");
disconnect(this);
notifyRoom();
return;
}
StringTokenizer st=new StringTokenizer(line,":");
String keyword=st.nextToken();
if(keyword.equalsIgnoreCase("MSG")) {
sendClients(line);
}else if(keyword.equalsIgnoreCase("QUIT")) {
send("QUIT");
disconnect(this);
notifyRoom();
this.stop();
}
}
}
}
public boolean checkName(Client newClient) {
for(int i=0;i<clients.size();i++) {
Client c=(Client)clients.elementAt(i);
if((c!=newClient)&&(c.name).equals(newClient.name))
return false;
}
return true;
}
public void notifyRoom() {
String people="PEOPLE";
for(int i=0;i<clients.size();i++) {
Client c=(Client)clients.get(i);
people+=":"+c.name;
System.out.println(c.name);
}
sendClients(people);
}
public void sendClients(String msg) {
for(int i=0;i<clients.size();i++) {
Client c=(Client)clients.get(i);
c.send(msg);
}
}
public void disconnect(Client c) {
try {
jT1.append(c.name+"斷開連接\n");
c.send("QUIT");
clients.removeElement(c);
c.socket.close();
}catch(IOException e) {
jT2.append("客戶斷開錯誤\n");
}
}
public void actionPerformed(ActionEvent e) {
try {
server=new ServerSocket(Integer.parseInt(jF1.getText()));
jT2.append("系統提示：聊天服務器系統開始啓動……\n");
}catch(IOException e1) {
jT2.append("服務器端口打開出錯\n");
}
if(server!=null) {
ConnectSocket connect=new ConnectSocket();
connect.start();
}
}
}
三、test.java
public class test {
public static void main(String[] args) {
Client w1 = new Client();
}
}