我使用invokelater更新按钮单击时的值，但该值仅在我运行GUI的另一个实例时更改。我在主方法之外运行invokelater方法，所以我不确定为什么值不会更新。任何帮助表示赞赏。
private void threadStart() {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
testLabel.setText(CN);
}
});
}
我在这里使用创建的方法：
searchComputerButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
threadStart();
String line;
BufferedWriter bw = null;
BufferedWriter writer = null;
try {
writer = new BufferedWriter(new FileWriter(tempFile));
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
etc...
您可以在此处查看完整课程：
import java.awt.EventQueue;
import javax.naming.InvalidNameException;
import javax.naming.ldap.LdapName;
import javax.swing.JFrame;
import javax.swing.JButton;
import java.awt.BorderLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.GridLayout;
import javax.naming.ldap.LdapName;
import javax.swing.JTextField;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import java.awt.Color;
import java.awt.Font;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.Inet4Address;
import java.net.UnknownHostException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.swing.JTextArea;
import javax.swing.JTable;
public class MISControlPanel {
JFrame frame;
static JTextField textField;
private JTextField textField_1;
final JTextArea textArea = new JTextArea();
JLabel selectedComputerFromAD = new JLabel("testing");
String sCurrentLine = null;
String CN = null;
JLabel testLabel = new JLabel("test");
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
MISControlPanel window = new MISControlPanel();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*
* @throws IOException
*
* @wbp.parser.entryPoint
*/
public MISControlPanel() throws IOException {
initialize();
}
/**
* Initialize the contents of the frame.
*
* @throws IOException
*/
private void initialize() throws IOException {
frame = new JFrame();
frame.getContentPane().setBackground(Color.LIGHT_GRAY);
frame.getContentPane().setForeground(Color.RED);
frame.setBounds(100, 100, 658, 618);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
frame.setTitle("MIS Advanced Computerers");
frame.setResizable(false);
FileWriter fw = new FileWriter("C:\\Users\\anoc5f\\Desktop\\Output.txt");
File tempFile = new File("myTempFile.txt");
JButton searchComputerButton = new JButton("Search");
searchComputerButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
threadStart();
String line;
BufferedWriter bw = null;
BufferedWriter writer = null;
try {
writer = new BufferedWriter(new FileWriter(tempFile));
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
String s = null;
Process p = null;
/*
* try { // p = Runtime.getRuntime().exec(
* "cmd /c start c:\\computerQuery.bat computerName"); } catch
* (IOException e1) { // TODO Auto-generated catch block
* e1.printStackTrace(); }
*/
try {
p = Runtime.getRuntime().exec("c:\\computerQuery.bat");
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
StringBuffer sbuffer = new StringBuffer();
BufferedReader in = new BufferedReader(new InputStreamReader(p
.getInputStream()));
try {
while ((line = in.readLine()) != null) {
System.out.println(line);
// textArea.append(line);
String dn = "CN=FDCD111304,OU=Workstations,OU=SIM,OU=Accounts,DC=FL,DC=NET";
LdapName ldapName = new LdapName(dn);
String commonName = (String) ldapName.getRdn(
ldapName.size() - 1).getValue();
}
ComputerQuery.sendParam();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (InvalidNameException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} finally
{
try {
fw.close();
}
catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
try {
in.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
ComputerQuery.sendParam();
}
});
try (BufferedReader br = new BufferedReader(new FileReader(
"resultofbatch.txt"))) {
final Pattern PATTERN = Pattern.compile("CN=([^,]+).*");
try {
while ((sCurrentLine = br.readLine()) != null) {
String[] tokens = PATTERN.split(","); // This will return
// you a array,
// containing the
// string array
// splitted by what
// you write inside
// it.
// should be in your case the split, since they are
// seperated by ","
// System.out.println(sCurrentLine);
CN = sCurrentLine.split("CN=", -1)[1].split(",", -1)[0];
System.out.println(CN);
testLabel.setText(CN);
}
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
} catch (IOException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
// SwingUtilities.invokeLater(updateCN());
searchComputerButton.setBounds(419, 19, 89, 20);
frame.getContentPane().add(searchComputerButton);
textField = new JTextField();
textField.setBounds(285, 19, 124, 20);
frame.getContentPane().add(textField);
textField.setColumns(10);
JLabel lblComputerName = new JLabel("Computer Name:");
lblComputerName.setForeground(Color.BLACK);
lblComputerName.setFont(new Font("Tahoma", Font.BOLD, 14));
lblComputerName.setBounds(159, 13, 124, 29);
frame.getContentPane().add(lblComputerName);
JLabel lblSelectedComputer = new JLabel("Selected Computer:");
lblSelectedComputer.setFont(new Font("Tahoma", Font.BOLD, 14));
lblSelectedComputer.setBounds(205, 78, 143, 30);
frame.getContentPane().add(lblSelectedComputer);
java.net.InetAddress localMachine = null;
try {
localMachine = java.net.InetAddress.getLocalHost();
} catch (UnknownHostException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
textArea.setBackground(Color.GRAY);
textArea.setForeground(Color.WHITE);
textArea.setFont(textArea.getFont().deriveFont(Font.BOLD));
textArea.setBounds(10, 387, 632, 191);
textArea.setEditable(false); // might cause design view not to come up
frame.getContentPane().add(textArea);
JButton btnNewButton = new JButton("SSO REPAIR");
btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
btnNewButton.setBounds(36, 183, 132, 23);
frame.getContentPane().add(btnNewButton);
JLabel lblNewLabel = new JLabel("Batch File Fixes");
lblNewLabel.setFont(new Font("Tahoma", Font.BOLD, 12));
lblNewLabel.setBounds(53, 158, 115, 14);
frame.getContentPane().add(lblNewLabel);
JLabel lblIpAddress = new JLabel("IP Address:");
lblIpAddress.setFont(new Font("Tahoma", Font.BOLD, 14));
lblIpAddress.setBounds(261, 104, 102, 22);
frame.getContentPane().add(lblIpAddress);
JLabel label = null;
try {
label = new JLabel(Inet4Address.getLocalHost().getHostAddress()); // Get
// User
// ID
} catch (UnknownHostException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
label.setFont(new Font("Tahoma", Font.BOLD, 14));
label.setForeground(Color.RED);
label.setBounds(349, 105, 99, 21);
frame.getContentPane().add(label);
JLabel lblPcCommunication = new JLabel("PC Communication");
lblPcCommunication.setFont(new Font("Tahoma", Font.BOLD, 12));
lblPcCommunication.setBounds(279, 158, 115, 14);
frame.getContentPane().add(lblPcCommunication);
JButton btnPingComputer = new JButton("PING");
btnPingComputer.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
}
});
btnPingComputer.setBounds(306, 183, 64, 23);
frame.getContentPane().add(btnPingComputer);
JButton remoteAssistanceButton = new JButton(
"Remote Assistance by PC Name");
remoteAssistanceButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
remoteAssistanceButton.setBounds(215, 251, 246, 23);
frame.getContentPane().add(remoteAssistanceButton);
JButton btnPingIndefinetely = new JButton("PING INDEFINETELY");
btnPingIndefinetely.setBounds(260, 217, 156, 23);
frame.getContentPane().add(btnPingIndefinetely);
JButton btnRdcByIp = new JButton("RDC by IP Address");
btnRdcByIp.setBounds(261, 353, 156, 23);
frame.getContentPane().add(btnRdcByIp);
JButton btnRdcByName = new JButton("RDC by PC Name");
btnRdcByName.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
btnRdcByName.setBounds(248, 319, 180, 23);
frame.getContentPane().add(btnRdcByName);
JLabel lblLoggedInOpid = new JLabel("Logged in OPID:");
lblLoggedInOpid.setFont(new Font("Tahoma", Font.BOLD, 14));
lblLoggedInOpid.setBounds(228, 127, 135, 20);
frame.getContentPane().add(lblLoggedInOpid);
JLabel lblNewLabel_1 = new JLabel(System.getProperty("user.name")
.toUpperCase());
lblNewLabel_1.setFont(new Font("Tahoma", Font.BOLD, 14));
lblNewLabel_1.setForeground(Color.RED);
lblNewLabel_1.setBounds(348, 130, 86, 14);
frame.getContentPane().add(lblNewLabel_1);
JButton btnHiddenShare = new JButton("HIDDEN SHARE");
btnHiddenShare.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
}
});
btnHiddenShare.setBounds(484, 183, 132, 23);
frame.getContentPane().add(btnHiddenShare);
JLabel lblAdditionalTools = new JLabel("Tools");
lblAdditionalTools.setFont(new Font("Tahoma", Font.BOLD, 12));
lblAdditionalTools.setBounds(526, 157, 126, 20);
frame.getContentPane().add(lblAdditionalTools);
JButton btnNewButton_1 = new JButton("Remote Assistance by IP Address");
btnNewButton_1.setBounds(215, 285, 246, 23);
frame.getContentPane().add(btnNewButton_1);
JButton gpUpdate = new JButton("GP UPDATE");
gpUpdate.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
}
});
gpUpdate.setBounds(36, 217, 132, 23);
frame.getContentPane().add(gpUpdate);
JButton btnForced = new JButton("NURMED REG FIX");
btnForced.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
btnForced.setBounds(36, 251, 132, 23);
frame.getContentPane().add(btnForced);
JButton btnCleaConsoler = new JButton("CLEAR");
btnCleaConsoler.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textArea.setText("");
}
});
btnCleaConsoler.setBounds(563, 353, 79, 23);
frame.getContentPane().add(btnCleaConsoler);
JLabel lblOpid = new JLabel("Find Computer by OPID:");
lblOpid.setFont(new Font("Tahoma", Font.BOLD, 14));
lblOpid.setBounds(104, 53, 180, 14);
frame.getContentPane().add(lblOpid);
textField_1 = new JTextField();
textField_1.setBounds(285, 50, 124, 20);
frame.getContentPane().add(textField_1);
textField_1.setColumns(10);
JButton btnNewButton_2 = new JButton("Search");
btnNewButton_2.setBounds(419, 50, 89, 23);
frame.getContentPane().add(btnNewButton_2);
testLabel.setForeground(Color.RED);
testLabel.setFont(new Font("Tahoma", Font.BOLD, 14));
testLabel.setBounds(358, 78, 150, 24);
frame.getContentPane().add(testLabel);
}
private void threadStart() {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
testLabel.setText(CN);
}
});
}
}