用socket编程实现的简单的聊天软件
import javax.swing.*;
import java.awt.event.*;
import javax.swing.border.Border;
import javax.swing.border.LineBorder;
import javax.swing.text.BadLocationException;
import java.io.*;
import java.net.*;
import java.awt.event.*;
import java.awt.*;
import java.util.*;
import java.text.*;
public class SeekYou {
public static void main(String[] args){
Recv r = new Recv();
new Thread(r).start();
}
}
class Recv implements Runnable{
InterFace inf = new InterFace();
public void run(){
try {
ServerSocket ss = new ServerSocket(1080);
Socket s = ss.accept();
inf.connectInformation(s);
} catch (Exception e) {
e.printStackTrace();
}
}
}
class InterFace implements Runnable{
// 网络连接的套接字
Socket sock = null;
InputStream is = null;
OutputStream os = null;
// 聊天界面的顶层容器
JFrame jf = new JFrame("Seek You");
// 聊天界面的顶部
JPanel p = new JPanel();
JLabel l = new JLabel("Input His/Her IP: ");
final JTextField tf = new JTextField(20);
JButton bt = new JButton("Connect");
// 聊天界面的中部
JScrollPane js = new JScrollPane();
TextArea ta = new TextArea();
// 聊天界面的底部
JPanel p2 = new JPanel();
JTextField tff = new JTextField(40);
JButton btt = new JButton("Send");
InterFace()
{
// 聊天界面的顶层容器
jf.setSize(600,400);
jf.setLocation(340,160);
jf.setVisible(true);
// 聊天界面的顶部
tf.addKeyListener(new KeyAdapter(){
public void keyPressed(KeyEvent e) {
if( e.getKeyChar() == KeyEvent.VK_ENTER){
bt.doClick();
}
}
});
p.add(l);
p.add(tf);
p.add(bt);
jf.getContentPane().add(p,BorderLayout.NORTH);
// 添加indowListener
jf.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
try {
if(is != null)
is.close();
if(os != null)
os.close();
if(sock != null)
sock.close();
} catch (IOException e1) {
e1.printStackTrace();
}
System.exit(0);
}
});
// 聊天界面的中部
ta.setBackground(Color.gray);
ta.setForeground(Color.white);
// js.add(ta);
jf.getContentPane().add(ta,BorderLayout.CENTER);
// 聊天界面的底部
tff.addKeyListener(new KeyAdapter(){
public void keyPressed(KeyEvent e) {
if( e.getKeyChar() == KeyEvent.VK_ENTER){
btt.doClick();
}
}
});
p2.add(tff);
p2.add(btt);
jf.getContentPane().add(p2,BorderLayout.SOUTH);
// 实现Send的侦听
btt.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
if(sock == null){
String line = System.getProperty("line.separator");
tff.setText("");
ta.append("您还没有建立连接");
ta.append(line);
}
else{
String s = tff.getText();
tff.setText("");
try {
String line = System.getProperty("line.separator");
os.write(s.getBytes());
ta.append("Me: "+s);
ta.append(line);
} catch (Exception e1) {
e1.printStackTrace();
}
}
}
});
// 实现connect的监听
bt.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
if(sock ==null){
try {
sock = new Socket(tf.getText(),1080);
is = sock.getInputStream();
os = sock.getOutputStream();
String line = System.getProperty("line.separator");
ta.append("您已经和"+sock.getInetAddress().getHostName()+"建立连接");
ta.append(line);
recvst();//启动接收信息的进程
}
catch (Exception e1) {
String line = System.getProperty("line.separator");
ta.append("连接失败,请重新输入IP进行连接");
ta.append(line);
e1.printStackTrace();
}
}else{
String line = System.getProperty("line.separator");
ta.append("您已经和"+sock.getInetAddress().getHostName()+"建立连接，");
ta.append("重新启动可以建立其他连接");
ta.append(line);
}
}
});
}
final void recvst(){
new Thread(this).start();
}
void connectInformation(Socket s){
if(sock==null){
sock = s;
String line = System.getProperty("line.separator");
ta.append(s.getInetAddress().getHostName()+"已经连接到你的电脑");
ta.append(line);
ta.append(Calendar.getInstance().getTime()+"");
ta.append(line);
try {
is = s.getInputStream();
os = s.getOutputStream();
recvst();//启动接收信息的进程
} catch (Exception e) {
e.printStackTrace();
}
}
else{
String line = System.getProperty("line.separator");
ta.append(s.getInetAddress().getHostName()+"正在连接到你的电脑...");
ta.append("但您已经和"+sock.getInetAddress().getHostName()+"建立连接");
ta.append(line);
ta.append(Calendar.getInstance().getTime()+"");
ta.append(line);
}
}
/*
void wordclear(){
String input = ta.getText();
String[] regStr = input.split( "line.separator") ;
int i = 0;
for(String s : regStr){i++;}
if(i==14){
ta.setText("");
}
}
*/
public void run(){
// new Thread(new WordClear(ta)).start();//开启文本域字数控制线程
while(true){
if(is!=null){
String line = System.getProperty("line.separator");
byte[] buf = new byte[100];
try {
int len = is.read(buf);
if(len != 0){
ta.append("You: "+new String(buf, 0, len));
ta.append(line);
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
/*
class WordClear implements Runnable{
TextArea ta;
WordClear(TextArea ta){
this.ta = ta;
}
String ss;
public void run(){
while(true){
System.out.println("!!!!!!!!!");
String input = ta.getText();
String[] regStr = input.split( "/n") ;
int i = 0;
for(String s : regStr){
i++;
if(i>16){
ss = s+"/n";
}
}
if(i==17){
try {
ta.setText(ss);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
}
*/