2019.10.07
1.窗口聊天
代码：
服务器：
package MyFrame;
import java.io.*;
import java.net.*;
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class MyServer implements ActionListener {
ServerSocket ss;
Socket s;
int port;
String str;
BufferedReader br;
PrintStream p;
JFrame f;
JLabel l1,l2,l3;
JButton b1,b2,b3;
JTextArea ta;
JTextField t1,t2,t3;
public MyServer() {
f=new JFrame("服务器端");
l1=new JLabel("ip地址：");
l2=new JLabel("端口号：");
l3=new JLabel("服务器对话框：");
b1=new JButton("确定");
b2=new JButton("关闭");
b3=new JButton("发送");
t1=new JTextField(20);
t2=new JTextField(20);
t3=new JTextField(20);
ta=new JTextArea();
ta.setLineWrap(true);
ta.setEditable(false);
f.setSize(500, 600);
f.setVisible(true);
f.setLayout(null);
f.add(l1);
f.add(t1);
f.add(l2);
f.add(t2);
f.add(l3);
f.add(b1);
f.add(b2);
f.add(b3);
f.add(ta);
f.add(t3);
l1.setBounds(50, 15, 50, 25);
t1.setBounds(100, 15, 120, 25);
l2.setBounds(250, 15, 50, 25);
t2.setBounds(300, 15, 120, 25);
b1.setBounds(160, 50, 60, 30);
b2.setBounds(250, 50, 60, 30);
ta.setBounds(0, 90, 500, 420);
l3.setBounds(10, 520, 100, 30);
t3.setBounds(100, 520, 300, 30);
b3.setBounds(410, 520, 60, 30);
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
f.setBounds(100, 100, 500, 600);
}
public static void main(String[] args) throws IOException {
new MyServer();
}
@Override
public void actionPerformed(ActionEvent e) {
Thread t1=new Thread(new Runnable() {
public void run() {
try {
ss=new ServerSocket(port);
s=ss.accept();
ta.append("客户端连接成功！\n");
br=new BufferedReader(new InputStreamReader(s.getInputStream()));
p=new PrintStream(s.getOutputStream());
p.println("已成功连接服务器！");
while(true) {
str=br.readLine();
ta.append("客户端："+str+"\n");
}
} catch (IOException e) {
e.printStackTrace();
}
}});
String str1=e.getActionCommand();
if(str1.equals("确定")) {
String str2=t2.getText();
port=Integer.parseInt(str2);
ta.append("服务器启动完成!等待连接中......\n");
t1.start();
}
else if(str1.equals("关闭")) {
System.exit(0);
}
else if(str1.equals("发送")){
String str3=t3.getText();
ta.append(str3+"\n");
p.println(str3);
t3.setText("");
}
}
}
客户端：
package MyFrame;
import java.io.*;
import java.net.*;
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class MyClient implements ActionListener {
Socket s;
int port;
String str,ip1;
BufferedReader br;
PrintStream p;
JFrame f;
JLabel l1,l2,l3;
JButton b1,b2,b3;
JTextArea ta;
JTextField t1,t2,t3;
public MyClient() {
f=new JFrame("客户端");
l1=new JLabel("ip地址：");
l2=new JLabel("端口号：");
l3=new JLabel("客户端对话框：");
b1=new JButton("确定");
b2=new JButton("关闭");
b3=new JButton("发送");
t1=new JTextField(20);
t2=new JTextField(20);
t3=new JTextField(20);
ta=new JTextArea();
ta.setLineWrap(true);
ta.setEditable(false);
f.setSize(500, 600);
f.setVisible(true);
f.setLayout(null);
f.add(l1);
f.add(t1);
f.add(l2);
f.add(t2);
f.add(l3);
f.add(b1);
f.add(b2);
f.add(b3);
f.add(ta);
f.add(t3);
l1.setBounds(50, 15, 50, 25);
t1.setBounds(100, 15, 120, 25);
l2.setBounds(250, 15, 50, 25);
t2.setBounds(300, 15, 120, 25);
b1.setBounds(160, 50, 60, 30);
b2.setBounds(250, 50, 60, 30);
ta.setBounds(0, 90, 500, 420);
l3.setBounds(10, 520, 100, 30);
t3.setBounds(100, 520, 300, 30);
b3.setBounds(410, 520, 60, 30);
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
f.setBounds(700, 100, 500, 600);
}
public static void main(String[] args) throws IOException {
new MyClient();
}
@Override
public void actionPerformed(ActionEvent e) {
Thread t=new Thread(new Runnable() {
public void run() {
try {
s=new Socket(ip1,port);
br=new BufferedReader(new InputStreamReader(s.getInputStream()));
p=new PrintStream(s.getOutputStream());
while(true){
str=br.readLine();
ta.append("服务器："+str+"\n");
}
}
catch (UnknownHostException e1) {
ta.append("IP地址或端口号输入错误!");
e1.printStackTrace();
}
catch (ConnectException e2) {
ta.append("找不到对应服务器!端口号输入错误!");
e2.printStackTrace();
}
catch(SocketException e3) {
ta.append("连接错误！");
e3.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
}
});
String str1=e.getActionCommand();
if(str1.equals("确定")) {
ip1=t1.getText();
String str2=t2.getText();
port=Integer.parseInt(str2);
t.start();
ta.append("客户端启动成功！正在连接中......\n");
}
else if(str1.equals("关闭")) {
System.exit(0);
}
else if(str1.equals("发送")) {
String str5=t3.getText();
ta.append(str5+"\n");
p.println(str5);
t3.setText("");
}
}
}
运行截图：
2.文件传送
代码：
服务器：
package MyFileTCP;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
import javax.swing.*;
import java.net.*;
public class MyFileServer implements ActionListener{
String path;
ServerSocket ss;
Socket s;
JFrame f;
JPanel p;
JTextArea ta;
JLabel l;
JButton b1,b2;
JTextField t;
public MyFileServer() {
f=new JFrame("服务器端");
p=new JPanel();
ta=new JTextArea();
l=new JLabel("文件路径：");
b1=new JButton("发送");
b1.addActionListener(this);
b2=new JButton("关闭");
b2.addActionListener(this);
t=new JTextField(14);
f.setVisible(true);
f.setSize(360, 260);
f.setLayout(new BorderLayout());
f.add(ta,BorderLayout.CENTER);
f.add(p,BorderLayout.SOUTH);
p.add(l);
p.add(t);
p.add(b1);
p.add(b2);
ta.setEditable(false);
try {
ss=new ServerSocket(6666);
ta.append("服务器已启动，等待客户端连接中...\n");
s=ss.accept();
ta.append("客户端连接完成，可传送文件\n");
s.close();
ss.close();
}
catch(FileNotFoundException e1) {
ta.append("系统找不到指定的路径!\n");
e1.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws IOException {
new MyFileServer();
}
@Override
public void actionPerformed(ActionEvent e) {
Thread t1=new Thread(new Runnable() {
public void run() {
try {
ss=new ServerSocket(6666);
s=ss.accept();
}
catch(FileNotFoundException e1) {
ta.append("系统找不到指定的路径!\n");
e1.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
try {
File file=new File(path);
OutputStream out=s.getOutputStream();
String filename=file.getName();
out.write(filename.getBytes());
out.flush();
Thread.sleep(5000);
BufferedInputStream in=new BufferedInputStream(new FileInputStream(file));
byte []buff=new byte[1024];
int len;
while((len=in.read(buff))!=-1){
out.write(buff, 0, len);
}
ta.append("传送完成！可继续！（文件保存于D盘）\n");
out.close();
in.close();
s.close();
ss.close();
}
catch (InterruptedException e) {
ta.append("文件传输中断！\n");
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
}
});
String str=e.getActionCommand();
if(str.equals("发送")) {
path=t.getText();
ta.append("正在传送文件："+path+"\n");
t.setText("");
t1.start();
}
else if(str.equals("关闭")) {
System.exit(0);
}
}
}
客户端：
package MyFileTCP;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
import javax.swing.*;
import java.net.*;
public class MyFileClient implements ActionListener{
String path;
String filename;
Socket s;
JFrame f;
JPanel p;
JTextArea ta;
JButton b1,b2;
public MyFileClient(){
f=new JFrame("客户端");
p=new JPanel();
ta=new JTextArea();
b1=new JButton("接收");
b1.addActionListener(this);
b2=new JButton("关闭");
b2.addActionListener(this);
f.setVisible(true);
f.setSize(360, 260);
f.setLayout(new BorderLayout());
f.add(ta,BorderLayout.CENTER);
f.add(p,BorderLayout.SOUTH);
p.add(b1);
p.add(b2);
ta.setEditable(false);
try {
s=new Socket("localhost",6666);
ta.append("服务器连接成功，可接收文件！\n");
s.close();
} catch (UnknownHostException e) {
ta.append("IP地址或端口号输入错误!\n");
e.printStackTrace();
}
catch (ConnectException e2) {
ta.append("找不到对应服务器!端口号输入错误!\n");
e2.printStackTrace();
}
catch(SocketException e3) {
ta.append("连接错误！\n");
e3.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws UnknownHostException, IOException {
new MyFileClient();
}
@Override
public void actionPerformed(ActionEvent e) {
Thread t1=new Thread(new Runnable() {
public void run() {
try {
s=new Socket("localhost",6666);
} catch (UnknownHostException e) {
ta.append("IP地址或端口号输入错误!\n");
e.printStackTrace();
}
catch (ConnectException e2) {
ta.append("找不到对应服务器!端口号输入错误!\n");
e2.printStackTrace();
}
catch(SocketException e3) {
ta.append("连接错误！\n");
e3.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
try {
InputStream in=s.getInputStream();
byte []filenamebyte=new byte[1024];
int filenamelen;
filenamelen=in.read(filenamebyte);
filename=new String(filenamebyte,0,filenamelen);
path="d:/"+"copy--"+filename;
ta.append("正在接收文件："+"copy--"+filename+"\n");
File file=new File(path);
BufferedOutputStream out=new BufferedOutputStream(new FileOutputStream(file));
byte[] buff=new byte[1024];
int len;
while((len=in.read(buff))!=-1) {
out.write(buff, 0, len);
}
ta.append("接收完成！可继续！（文件保存于D盘）\n");
out.close();
in.close();
s.close();
}catch (IOException e) {
e.printStackTrace();
}
}
});
String str=e.getActionCommand();
if(str.equals("接收")) {
t1.start();;
}
else if(str.equals("关闭")) {
System.exit(0);
}
}
}
截图：
