Java Socket 实现给服务端发送文件
文件传输的客户端UI界面：
文件传输的服务器UI界面：
服务器端：
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPasswordField;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
public class FileServer {
private JFrame frame;
private JPasswordField txtPassword;
private JLabel lblFileCount;
private JButton btnChoosePath;
private JButton btnOpenDir;
private JButton btnStart;
private JButton btnStop;
private JTextArea textAreaRec;
//////////
String savePath;
boolean bStart=false;
int port=9000;
ServerSocket server;
String passord="12345";
int numOfUploadFile=0;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
FileServer window = new FileServer();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public FileServer() {
initialize();
savePath=System.getProperty("user.dir");
txtPassword.setText(passord);
}
public String getTimeStr(){
SimpleDateFormat fm=new SimpleDateFormat("yy/MM/dd hh:mm:ss");
return fm.format(new Date());
}
public void addMsgRec(String msg){
textAreaRec.append(msg+"\n");
textAreaRec.setCaretPosition(textAreaRec.getText().length());
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
frame = new JFrame();
frame.setTitle("\u6587\u4EF6\u670D\u52A1\u5668");
frame.setBounds(100, 100, 645, 419);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
JLabel lblNewLabel_1 = new JLabel(
"\u8BBE\u7F6E\u4E0A\u4F20\u5BC6\u7801:");
lblNewLabel_1.setBounds(14, 17, 98, 18);
frame.getContentPane().add(lblNewLabel_1);
txtPassword = new JPasswordField();
txtPassword.setEchoChar('*');
txtPassword.setBounds(115, 14, 115, 24);
frame.getContentPane().add(txtPassword);
btnStart = new JButton("\u542F\u52A8\u670D\u52A1\u5668");
btnStart.setBounds(280, 48, 153, 27);
frame.getContentPane().add(btnStart);
////////////
btnStart.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
Thread t=new Thread(new ServerThread());
t.start();
btnStop.setEnabled(true);
btnStart.setEnabled(false);
}
});
btnStop = new JButton("\u505C\u6B62\u670D\u52A1\u5668");
btnStop.setEnabled(false);
btnStop.setBounds(465, 48, 143, 27);
frame.getContentPane().add(btnStop);
/////////
btnStop.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
try {
bStart=false;
btnStart.setEnabled(true);
btnStop.setEnabled(false);
addMsgRec(getTimeStr()+"聊天室服务器已经关闭...");
server.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
btnChoosePath = new JButton(
"\u9009\u62E9\u6587\u4EF6\u5B58\u653E\u8DEF\u5F84");
btnChoosePath.setBounds(280, 13, 153, 27);
frame.getContentPane().add(btnChoosePath);
//////////
btnChoosePath.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
JFileChooser dirChooser=new JFileChooser();
dirChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
if(dirChooser.showOpenDialog(frame)==JFileChooser.APPROVE_OPTION)
savePath=dirChooser.getSelectedFile().getPath();
addMsgRec(getTimeStr()+"上传的文件存储路径:"+savePath);
}
});
btnOpenDir = new JButton("\u67E5\u770B\u5DF2\u4E0A\u4F20\u6587\u4EF6");
btnOpenDir.setBounds(463, 13, 145, 27);
frame.getContentPane().add(btnOpenDir);
///////////
btnOpenDir.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
String command="cmd /c start explorer"+savePath;
try {
Runtime.getRuntime().exec(command);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
JLabel lblNewLabel_2 = new JLabel("\u6D88\u606F\u8BB0\u5F55");
lblNewLabel_2.setBounds(14, 62, 72, 23);
frame.getContentPane().add(lblNewLabel_2);
JScrollPane scrollPane = new JScrollPane();
scrollPane.setBounds(14, 88, 594, 263);
frame.getContentPane().add(scrollPane);
textAreaRec = new JTextArea();
textAreaRec.setFont(new Font("Monospaced", Font.PLAIN, 15));
scrollPane.setViewportView(textAreaRec);
lblFileCount = new JLabel(
"\u76EE\u524D\u5DF2\u7ECF\u4E0A\u4F200\u4E2A\u6587\u4EF6");
lblFileCount.setBounds(14, 354, 619, 18);
frame.getContentPane().add(lblFileCount);
// 更换样式
try {
String style = "com.sun.java.swing.plaf.windows.WindowsLookAndFeel";
UIManager.setLookAndFeel(style);
// 更新窗体样式
SwingUtilities.updateComponentTreeUI(this.frame);
} catch (Exception e) {
e.printStackTrace();
}
}
//////////
class ClientHandler implements Runnable{
Socket s;
String fileName;
long fileLen;
long byteOfRecv;
boolean bAuthen=false;
public ClientHandler(Socket s){
this.s=s;
}
public void auth_user() throws IOException{
DataOutputStream dos=new DataOutputStream(s.getOutputStream());
DataInputStream dis=new DataInputStream(s.getInputStream());
int pktType=dis.readInt();
if(pktType==PktCmd.PKT_AUTH)
{
fileName=dis.readUTF();
fileLen=dis.readLong();
String pwd=dis.readUTF();
if(pwd.equals(passord))
{
dos.writeInt(PktCmd.PKT_AUTH_RES);
dos.writeInt(PktCmd.AUTH_SUCCESS);
bAuthen=true;
addMsgRec("\n"+getTimeStr()+"客户端"+s.getRemoteSocketAddress()+"验证通过.");
}
else
{
dos.writeInt(PktCmd.PKT_AUTH_RES);
dos.writeInt(PktCmd.AUTH_FAIL);
addMsgRec(getTimeStr()+"客户端"+s.getRemoteSocketAddress()+"验证失败.");
}
dos.flush();
}
}
public void recv_file() throws IOException{
long startTime=System.currentTimeMillis();
BufferedInputStream bis=new BufferedInputStream(s.getInputStream());
BufferedOutputStream bos=new BufferedOutputStream(new FileOutputStream(savePath+"\\"+fileName));
byteOfRecv=0;
byte[] recvBuf=new byte[4*1024];
addMsgRec(getTimeStr()+"接收来自于"+s.getRemoteSocketAddress()+"的文件:\n"+fileName+",共"+fileLen+"字节.");
while(byteOfRecv客户端：import java.awt.EventQueue;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPasswordField;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
public class FileServer {
private JFrame frame;
private JPasswordField txtPassword;
private JLabel lblFileCount;
private JButton btnChoosePath;
private JButton btnOpenDir;
private JButton btnStart;
private JButton btnStop;
private JTextArea textAreaRec;
//////////
String savePath;
boolean bStart=false;
int port=9000;
ServerSocket server;
String passord="12345";
int numOfUploadFile=0;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
FileServer window = new FileServer();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public FileServer() {
initialize();
savePath=System.getProperty("user.dir");
txtPassword.setText(passord);
}
public String getTimeStr(){
SimpleDateFormat fm=new SimpleDateFormat("yy/MM/dd hh:mm:ss");
return fm.format(new Date());
}
public void addMsgRec(String msg){
textAreaRec.append(msg+"\n");
textAreaRec.setCaretPosition(textAreaRec.getText().length());
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
frame = new JFrame();
frame.setTitle("\u6587\u4EF6\u670D\u52A1\u5668");
frame.setBounds(100, 100, 645, 419);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
JLabel lblNewLabel_1 = new JLabel(
"\u8BBE\u7F6E\u4E0A\u4F20\u5BC6\u7801:");
lblNewLabel_1.setBounds(14, 17, 98, 18);
frame.getContentPane().add(lblNewLabel_1);
txtPassword = new JPasswordField();
txtPassword.setEchoChar('*');
txtPassword.setBounds(115, 14, 115, 24);
frame.getContentPane().add(txtPassword);
btnStart = new JButton("\u542F\u52A8\u670D\u52A1\u5668");
btnStart.setBounds(280, 48, 153, 27);
frame.getContentPane().add(btnStart);
////////////
btnStart.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
Thread t=new Thread(new ServerThread());
t.start();
btnStop.setEnabled(true);
btnStart.setEnabled(false);
}
});
btnStop = new JButton("\u505C\u6B62\u670D\u52A1\u5668");
btnStop.setEnabled(false);
btnStop.setBounds(465, 48, 143, 27);
frame.getContentPane().add(btnStop);
/////////
btnStop.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
try {
bStart=false;
btnStart.setEnabled(true);
btnStop.setEnabled(false);
addMsgRec(getTimeStr()+"聊天室服务器已经关闭...");
server.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
btnChoosePath = new JButton(
"\u9009\u62E9\u6587\u4EF6\u5B58\u653E\u8DEF\u5F84");
btnChoosePath.setBounds(280, 13, 153, 27);
frame.getContentPane().add(btnChoosePath);
//////////
btnChoosePath.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
JFileChooser dirChooser=new JFileChooser();
dirChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
if(dirChooser.showOpenDialog(frame)==JFileChooser.APPROVE_OPTION)
savePath=dirChooser.getSelectedFile().getPath();
addMsgRec(getTimeStr()+"上传的文件存储路径:"+savePath);
}
});
btnOpenDir = new JButton("\u67E5\u770B\u5DF2\u4E0A\u4F20\u6587\u4EF6");
btnOpenDir.setBounds(463, 13, 145, 27);
frame.getContentPane().add(btnOpenDir);
///////////
btnOpenDir.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
String command="cmd /c start explorer"+savePath;
try {
Runtime.getRuntime().exec(command);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
JLabel lblNewLabel_2 = new JLabel("\u6D88\u606F\u8BB0\u5F55");
lblNewLabel_2.setBounds(14, 62, 72, 23);
frame.getContentPane().add(lblNewLabel_2);
JScrollPane scrollPane = new JScrollPane();
scrollPane.setBounds(14, 88, 594, 263);
frame.getContentPane().add(scrollPane);
textAreaRec = new JTextArea();
textAreaRec.setFont(new Font("Monospaced", Font.PLAIN, 15));
scrollPane.setViewportView(textAreaRec);
lblFileCount = new JLabel(
"\u76EE\u524D\u5DF2\u7ECF\u4E0A\u4F200\u4E2A\u6587\u4EF6");
lblFileCount.setBounds(14, 354, 619, 18);
frame.getContentPane().add(lblFileCount);
// 更换样式
try {
String style = "com.sun.java.swing.plaf.windows.WindowsLookAndFeel";
UIManager.setLookAndFeel(style);
// 更新窗体样式
SwingUtilities.updateComponentTreeUI(this.frame);
} catch (Exception e) {
e.printStackTrace();
}
}
//////////
class ClientHandler implements Runnable{
Socket s;
String fileName;
long fileLen;
long byteOfRecv;
boolean bAuthen=false;
public ClientHandler(Socket s){
this.s=s;
}
public void auth_user() throws IOException{
DataOutputStream dos=new DataOutputStream(s.getOutputStream());
DataInputStream dis=new DataInputStream(s.getInputStream());
int pktType=dis.readInt();
if(pktType==PktCmd.PKT_AUTH)
{
fileName=dis.readUTF();
fileLen=dis.readLong();
String pwd=dis.readUTF();
if(pwd.equals(passord))
{
dos.writeInt(PktCmd.PKT_AUTH_RES);
dos.writeInt(PktCmd.AUTH_SUCCESS);
bAuthen=true;
addMsgRec("\n"+getTimeStr()+"客户端"+s.getRemoteSocketAddress()+"验证通过.");
}
else
{
dos.writeInt(PktCmd.PKT_AUTH_RES);
dos.writeInt(PktCmd.AUTH_FAIL);
addMsgRec(getTimeStr()+"客户端"+s.getRemoteSocketAddress()+"验证失败.");
}
dos.flush();
}
}
public void recv_file() throws IOException{
long startTime=System.currentTimeMillis();
BufferedInputStream bis=new BufferedInputStream(s.getInputStream());
BufferedOutputStream bos=new BufferedOutputStream(new FileOutputStream(savePath+"\\"+fileName));
byteOfRecv=0;
byte[] recvBuf=new byte[4*1024];
addMsgRec(getTimeStr()+"接收来自于"+s.getRemoteSocketAddress()+"的文件:\n"+fileName+",共"+fileLen+"字节.");
while(byteOfRecvPktCmd.java:
public class PktCmd {
public final static int PKT_AUTH = 1; // 认证报文
public final static int PKT_AUTH_RES = 2; // 认证结果报文
public final static int AUTH_FAIL = 200; // 认证失败
public final static int AUTH_SUCCESS = 400; // 认证成功
}