socket简易聊天室（传输文件功能会阻塞）

package JframeClient; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import javax.swing.JButton; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTextField; import javax.swing.border.MatteBorder; import Jframe.Message; public class JframeSocket extends JFrame implements ActionListener, KeyListener{ private Message msg; private JPanel receive, send; private JTextField sendText; private JButton sendTextButton,sendFileButton; private JTextField[] receiveFields; private static int num = 8; public static void main(String[] args) { JframeSocket js = new JframeSocket(); js.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); js.setVisible(true); js.setSize(300,300); js.setLocation(500, 200); js.setAlwaysOnTop(true); js.setTitle("聊天工具——客服端"); } public JframeSocket(){ msg = new Message(); receive = new JPanel(); receive.setPreferredSize(new Dimension(300, 240)); receive.setBorder(new MatteBorder(1, 1, 1, 1, Color.black)); receive.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0)); receiveFields = new JTextField[num]; for(int i = 0; i < num; i++){ receiveFields[i] = new JTextField(); receiveFields[i].setPreferredSize(new Dimension(300,240/num)); receiveFields[i].setBorder(null); receiveFields[i].setEditable(false); receiveFields[i].setText(""); receiveFields[i].setBackground(Color.WHITE); receive.add(receiveFields[i]); } sendText = new JTextField(); sendText.setPreferredSize(new Dimension(170,60)); sendTextButton = new JButton("发送"); sendTextButton.setPreferredSize(new Dimension(40,60)); sendFileButton = new JButton("文件"); sendTextButton.setPreferredSize(new Dimension(40,60)); send = new JPanel(); send.setPreferredSize(new Dimension(300, 60)); send.setBorder(new MatteBorder(1, 1, 1, 1, Color.black)); send.setLayout(new BorderLayout()); send.add(sendText,BorderLayout.WEST); send.add(sendTextButton,BorderLayout.CENTER); send.add(sendFileButton,BorderLayout.EAST); getContentPane().setLayout(new BorderLayout()); getContentPane().add(receive, BorderLayout.NORTH); getContentPane().add(send, BorderLayout.CENTER); sendTextButton.addActionListener(this); sendText.addKeyListener(this); sendFileButton.addActionListener(this); MessageThread mt = new MessageThread(msg,receiveFields); mt.start(); } @Override public void actionPerformed(ActionEvent e) { if(e.getSource() == sendTextButton){ String str = sendText.getText(); msg.setContent(str); sendText.setText(""); display(str, receiveFields); } else if(e.getSource() == sendFileButton){ this.setAlwaysOnTop(false); JFileChooser jfc = new JFileChooser(); jfc.setDialogTitle("请选择文件"); int returnVal = jfc.showOpenDialog(null); if(returnVal == JFileChooser.APPROVE_OPTION){ this.setAlwaysOnTop(true); msg.setFilePath(jfc.getSelectedFile().getAbsolutePath()); msg.setContent("/file/"); } } } public void display(String str,JTextField[] jtfs){ for (int i = 0; i < jtfs.length - 1; i++) { jtfs[i].setText(jtfs[i+1].getText()); } jtfs[jtfs.length - 1].setText(" 我：" + str); } @Override public void keyPressed(KeyEvent e) { if(e.getKeyCode() == KeyEvent.VK_ENTER){ if(e.getSource() == sendText) sendTextButton.doClick(); } } @Override public void keyReleased(KeyEvent e) { // TODO Auto-generated method stub } @Override public void keyTyped(KeyEvent e) { // TODO Auto-generated method stub } }