Java 缓冲区侦听器到服务器输出错误
我在侦听服务器输出时遇到问题。我想能够打印一些东西到控制台一旦其中一个引用的命令。我面临的问题是，它似乎是在听，但却不配合节目的其余部分。因此，当我尝试单击GUI上的按钮时，它会卡住Java 缓冲区侦听器到服务器输出错误,java,bufferedreader,Java,Bufferedreader,我在侦听服务器输出时遇到问题。我想能够打印一些东西到控制台一旦其中一个引用的命令。我面临的问题是，它似乎是在听，但却不配合节目的其余部分。因此，当我尝试单击GUI上的按钮时，它会卡住 public class MainFrame implements Runnable { //declare Jpanel private static JFrame frmHome; // The client socket private static Socket clien
public class MainFrame implements Runnable {
//declare Jpanel
private static JFrame frmHome;
// The client socket
private static Socket clientSocket = null;
// The output stream
static ObjectOutputStream os;
// The input stream
static ObjectInputStream is;
private static BufferedReader inputLine = null;
private static boolean closed = false;
public static void main(String[] args) throws IOException{
// The default port.
int portNumber = 3333;
// The default host.
String host = "localhost";
/*
* Open a socket on a given host and port. Open input and output streams.
*/
try {
clientSocket = new Socket(host, portNumber);
is = new ObjectInputStream(clientSocket.getInputStream());
os = new ObjectOutputStream(clientSocket.getOutputStream());
os.flush();
System.out
.println("CONNECTED TO SERVER\n"
+ "Now using host=" + host + ", portNumber=" + portNumber);
} catch (UnknownHostException e) {
System.err.println("Don't know about host " + host);
} catch (IOException e) {
System.err.println("Couldn't get I/O for the connection to the host "
+ host);
}
/*
* If everything has been initialized then we want to write some data to the
* socket we have opened a connection to on the port portNumber.
*/
if (clientSocket != null && os != null && is != null) {
/* Create a thread to read from the server. */
new Thread(new MainFrame()).start();
os.writeObject("Home");
os.flush();
}
}
public void run() {
/*
* Keep on reading from the socket till we receive "Bye" from the
* server. Once we received that then we want to break.
*/
MainFrame window = new MainFrame();
MainFrame.frmHome.setVisible(true);
String responseLine;
try {
while (!closed) {
BufferedReader br = null;
try {
br = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String line;
try {
while((line = br.readLine()) != null){
if (br.readLine().contains("Modify,OK")
|| br.readLine().contains("AddSudent ok")){
System.out.println("did it");
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
} finally{
try {
is.close();
os.close();
clientSocket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public MainFrame() {
initialize();
}
//function to make window visible
void setVisible() throws IOException {
main(null);
}
private void initialize() {
//Initialise Main window with 3 options.
frmHome = new JFrame();
frmHome.setTitle("Home");
frmHome.setBounds(100, 100, 300, 372);
frmHome.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frmHome.getContentPane().setLayout(null);
frmHome.setResizable(false);
JLabel lblWelcomeToSrs = new JLabel("Welcome to SRS");
lblWelcomeToSrs.setFont(new Font("Tahoma", Font.PLAIN, 14));
lblWelcomeToSrs.setBounds(86, 183, 112, 14);
frmHome.getContentPane().add(lblWelcomeToSrs);
//initialise all buttons and labels of window.
JButton btnAdStu = new JButton("Add a student");
btnAdStu.setBounds(10, 207, 126, 23);
btnAdStu.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
AddStudentFrame adus;
try {
try {
adus = new AddStudentFrame();
adus.setVisible();
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
frmHome.setVisible(false);
} catch (ParseException e) {
e.printStackTrace();
}
}
});
frmHome.getContentPane().add(btnAdStu);
JButton btnCheckStud = new JButton("Search / Modify");
btnCheckStud.setBounds(146, 207, 127, 23);
btnCheckStud.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
SearchFrame searchFrame;
searchFrame = new SearchFrame();
searchFrame.setVisible();
}
});
frmHome.getContentPane().add(btnCheckStud);
JLabel lblNewLabel = new JLabel("");
lblNewLabel.setBounds(0, 0, 0, 0);
frmHome.getContentPane().add(lblNewLabel);
JLabel lblCreatedByRmi = new JLabel("Created by R\u00E9mi Tuyaerts");
lblCreatedByRmi.setBounds(147, 318, 184, 14);
frmHome.getContentPane().add(lblCreatedByRmi);
JButton btnNewButton = new JButton("Complete List of Students");
btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
CompleteListFrame studentList = new CompleteListFrame();
studentList.setVisible();
}
});
btnNewButton.setBounds(52, 241, 184, 23);
frmHome.getContentPane().add(btnNewButton);
// wonderful pictures of his excellence design by Yasser
JLabel lblNewLabel_1 = new JLabel("");
Image img = new ImageIcon(frmHome.getClass().getResource("/michaelchung.jpg")).getImage();
lblNewLabel_1.setIcon(new ImageIcon(img));
lblNewLabel_1.setBounds(80, 11, 120, 148);
frmHome.getContentPane().add(lblNewLabel_1);
}
}
我想这里有些不好的地方是
if（br.readLine（）.contains（“Modify，OK”）| | br.readLine（）.contains（“AddSudent OK”）{System.out.println（“did”）}br.readLine（）line.contains（“您的命令”）