Java模拟qq软件的详细过程
**之前在封装代码后出现了问题,按照最初的写法,在登陆完毕后弹出聊天界面后会卡死,原因是当时登陆界面和聊天界面都是使用的主线程,我的代码没有写其他线程,无法多线程运行,因此在弹出聊天界面时线程不够用了,就卡在了监听线程里,因为在监听线程中再有新的监听就会被卡住
在宇哥的指点下,将启动服务器和客户端的部分改为线程,就解决了此问题。改善后的代码简练和清晰了很多,更方便大家参考,代码如下:
**
登陆界面的实现
登陆界面主要使用了JFrame,以及相关的一些组件,并且在界面中加上监听
登陆界面效果图
登陆界面代码Login类
package com.lding.net;
import javax.swing.*;
import java.awt.*;
public class Login{
JTextField jTextField;
public static void main(String[] args){
Login login = new Login ();
login.showUI ("kk");
}
public void showUI(String str){
JFrame jf = new JFrame ();
jf.setTitle ("❤️DDqq登陆界面❤️");
jf.setSize (500, 400);
jf.setDefaultCloseOperation (3);
jf.setLocationRelativeTo (null);
jf.setResizable (false);
FlowLayout fl = new FlowLayout (FlowLayout.CENTER, 5, 5);
jf.setLayout (fl);
Dimension dim1 = new Dimension (500, 200);//图片大小
Dimension dim2 = new Dimension (100, 50);//标签大小
Dimension dim3 = new Dimension (300, 30);//输入框大小
Dimension dim4 = new Dimension (100, 40);//按钮大小
ImageIcon icon = new ImageIcon ("source/Login1.jpg");
JLabel labimg = new JLabel (icon);
labimg.setPreferredSize (dim1);
jf.add (labimg);
JLabel labuser = new JLabel ();
labuser.setText ("user:");
labuser.setPreferredSize (dim2);
jf.add (labuser);
JTextField textuser = new JTextField ();
textuser.setPreferredSize (dim3);
jf.add (textuser);
JLabel labpassword = new JLabel ();
labpassword.setText ("password:");
labpassword.setPreferredSize (dim2);
jf.add (labpassword);
JPasswordField textPassword = new JPasswordField ();
textPassword.setPreferredSize (dim3);
jf.add (textPassword);
JButton button = new JButton ();
button.setBorder (BorderFactory.createRaisedBevelBorder ());
button.setText ("login");
button.setPreferredSize (dim4);
jf.add (button);
jf.setVisible (true);
LoginListener ll = new LoginListener(textuser,textPassword, jf);
button.addActionListener (ll);
this.jTextField=ll.jTextField;
}
}
login的监听类 LoginListener
package com.lding.net;
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class LoginListener implements ActionListener {
JTextField jTextField;
JPasswordField jPasswordField;
JFrame jf ;
LoginListener( JTextField jTextField,JPasswordField jPasswordField,JFrame jf){
this.jf=jf;
this.jTextField = jTextField;
this.jPasswordField = jPasswordField;
}
@Override
public void actionPerformed(ActionEvent e){
if(jTextField.getText().equals("Alice")&&String.valueOf(jPasswordField.getPassword()).equals("1234")){
System.out.println ("服务端登录!!");
String name =jTextField.getText();
new Server(name).start();
jf.dispose();
}else if(jTextField.getText().equals("Lding")&&String.valueOf(jPasswordField.getPassword()).equals("1234")){
String name =jTextField.getText();
System.out.println ("客户端登录!!");
new Client(name).start();
jf.dispose();
}
}
}
在登陆完毕后,需要跳转到聊天界面,这里采用的方法是通过一个flag标志来判断是否登陆完毕,当登陆完毕后,会创建新的聊天界面,并且登陆页面会被关闭
依然是双端通信,假定一端为客户端,一端为服务端,其实两端都可为用户。
聊天界面运行图
先登陆Alice的账号 密码为123456
登陆成功后显示ok,并等待连接
再登陆冷丁的账号,密码为123456
当lding账号登陆成功后完成连接,这时候会弹出两个新的JFram窗口,为聊天见面
随后可以发送消息,消息可以实时显示时间,并显示用户名
一方发送的消息会在另一方的窗口上实时显示出来
Client类代码
package com.lding.net;
import com.lding.ui.MsgUI;
import javax.swing.*;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.text.SimpleDateFormat;
import java.util.Date;
public class Client extends Thread{
String name;
public Client(String name) {
this.name=name;
}
public static void main(String[] args) {
String port="客户端";
Login login=new Login();
login.showUI(port);
}
@Override
public void run(){
try {
startClient();
} catch (IOException e) {
e.printStackTrace ();
}
}
void startClient() throws IOException{
Socket socket=new Socket("127.0.0.1",8888);
//输入 输出流对象
InputStream inputStream=socket.getInputStream();
OutputStream outputStream=socket.getOutputStream();
MsgUI msgUI=new MsgUI(outputStream,name);
JTextPane showmsgpane=msgUI.initUI("客户端");
outputStream.flush();
int count=1;
while(true){
int msglenth=inputStream.read();
System.out.println("消息长度:"+msglenth);
byte[] msgbytes=new byte[msglenth];
//将接下来的数据读入字节数组中
inputStream.read(msgbytes);
count++;
if(count%2==0){
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//设置日期格式
String date = df.format(new Date());// new Date()为获取当前系统时间,也可使用当前时间戳
String getmsg=new String(msgbytes);
String msg=showmsgpane.getText();
showmsgpane.setText(msg+date+" ["+getmsg+"]"+"说:"+"\n");
}else{
String getmsg=new String(msgbytes);
String msg=showmsgpane.getText();
showmsgpane.setText(msg+getmsg+"\n");
}
}
}
}
Server代码
package com.lding.net;
import com.lding.ui.MsgUI;
import javax.swing.*;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.text.SimpleDateFormat;
import java.util.Date;
public class Server extends Thread{
JTextField jTextField;
String name;
public Server(String name){
this.name=name;
}
public static void main(String[] args) {
String port="服务端";
Login login=new Login();
login.showUI(port);
}
@Override
public void run(){
try {
startServer();
} catch (IOException e) {
e.printStackTrace ();
}
}
void startServer() throws IOException{
ServerSocket serverSocket=new ServerSocket(8888);
System.out.println("等待连接!!");
Socket clientsocket=serverSocket.accept();//监听连接
System.out.println("连接成功!!");
InputStream inputStream=clientsocket.getInputStream();
OutputStream outputStream=clientsocket.getOutputStream();
MsgUI msgUI=new MsgUI(outputStream,name);
JTextPane showmsgpane=msgUI.initUI("服务端");
//outputStream.flush();
int count=1;
while(true){
int msglenth=inputStream.read();
System.out.println("消息长度是:"+msglenth);
byte[] msgbytes=new byte[msglenth];
//将接下来的数据读入字节数组中
inputStream.read(msgbytes);
count++;
if(count%2==0){
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//设置日期格式
String date = df.format(new Date());// new Date()为获取当前系统时间,也可使用当前时间戳
String getmsg=new String(msgbytes);
String msg=showmsgpane.getText();
showmsgpane.setText(msg+date+" ["+getmsg+"]"+"说:"+"\n");
}else{
String getmsg=new String(msgbytes);
String msg=showmsgpane.getText();
showmsgpane.setText(msg+getmsg+"\n");
}
}
}
}
登陆界面代码
MsgUI
package com.lding.ui;
import javax.swing.*;
import java.awt.*;
import java.io.OutputStream;
public class MsgUI extends JFrame {
OutputStream outputStream;
String name;
public MsgUI(OutputStream outputStream,String name){
this.outputStream=outputStream;
this.name=name;
}
public JTextPane initUI(String title){
setTitle(title);
setSize(800,800);
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
setLayout(new FlowLayout());
//接收显示框
JTextPane jtp=new JTextPane();
jtp.setPreferredSize(new Dimension(750,400));
JScrollPane jsp=new JScrollPane(jtp);
jtp.getText();
Dimension dim=new Dimension(750,400);//按钮大小
//发送框
JTextPane jtp1=new JTextPane();
jtp1.setPreferredSize(new Dimension(750,200));
JScrollPane jsp1=new JScrollPane(jtp1);
JButton btn=new JButton("发送");
add(jsp);
add(jsp1);
add(btn);
setVisible(true);
MsgListener msgl=new MsgListener(jtp1,this.outputStream,name);
btn.addActionListener(msgl);
return jtp;
}
}
MsgUIListener
package com.lding.ui;
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.io.OutputStream;
public class MsgListener implements ActionListener {
JTextPane jtp;
OutputStream outputStream;
String name;
public MsgListener(JTextPane jtp,OutputStream outputStream,String name){
this.jtp=jtp;
this.outputStream=outputStream;
this.name=name;
}
@Override
public void actionPerformed(ActionEvent e) {
byte[] names=this.name.getBytes();
try {
outputStream.write(names.length);
outputStream.write(names);
outputStream.flush();
} catch (IOException ex) {
ex.printStackTrace();
}
String msg=jtp.getText();
byte[] msgs=msg.getBytes();
try {
outputStream.write(msgs.length);
outputStream.write(msgs);
outputStream.flush();
} catch (IOException ex) {
ex.printStackTrace();
}
jtp.setText(null);
}
}
之后会丰富更多功能 敬请期待! 感谢您的观看!!!
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