我想在特定的时间间隔调用我的函数。现在我的时间间隔设置为 1 分钟。我有以下代码示例:
定时器.java
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
public class Timer implements Runnable{
public static volatile boolean isRunning = true;
@Override
public void run() {
while (isRunning) {
if(Thread.currentThread().getName().equals("TimerThread")){
System.out.println("Start Time "+new Date());
try {
test();
Thread.sleep(60000);
} catch (InterruptedException ex) {
Logger.getLogger(Timer.class.getName()).log(Level.SEVERE, null, ex);
}
System.out.println("End Time "+new Date());
}
}
}
public void test(){
System.out.println("Call Test ===========================> "+new Date());
}
}
新JFrame.java
import java.awt.event.ItemEvent;
import java.util.Date;
public class NewJFrame extends javax.swing.JFrame {
/**
* Creates new form NewJFrame
*/
public NewJFrame() {
initComponents();
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jToggleButton1 = new javax.swing.JToggleButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jToggleButton1.setText("Start");
jToggleButton1.addItemListener(new java.awt.event.ItemListener() {
public void itemStateChanged(java.awt.event.ItemEvent evt) {
jToggleButton1ItemStateChanged(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(162, 162, 162)
.addComponent(jToggleButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 100, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(138, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(129, 129, 129)
.addComponent(jToggleButton1)
.addContainerGap(142, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void jToggleButton1ItemStateChanged(java.awt.event.ItemEvent evt) {
// TODO add your handling code here:
if(evt.getStateChange() == ItemEvent.SELECTED){
jToggleButton1.setText("Stop");
timer = new Timer();
timer.isRunning = true;
timerThread = new Thread(timer);
timerThread.setName("TimerThread");
timerThread.start();
}else{
jToggleButton1.setText("Start");
timer.isRunning = false;
System.out.println("Stop Time ===============> "+new Date());
}
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new NewJFrame().setVisible(true);
}
});
}
public Timer timer;
public Thread timerThread;
// Variables declaration - do not modify
private javax.swing.JToggleButton jToggleButton1;
// End of variables declaration
}
当我启动线程时,我将得到以下输出:
Start Time Sat Aug 08 10:45:01 IST 2015
Call Test ===========================> Sat Aug 08 10:45:01 IST 2015
一旦时间间隔完成,我会得到以下输出:
End Time Sat Aug 08 10:46:01 IST 2015
Start Time Sat Aug 08 10:46:01 IST 2015
Call Test ===========================> Sat Aug 08 10:46:01 IST 2015
之后我在 00:00:30 秒停止了我的线程,所以我将得到以下输出:
Stop Time ===============> Sat Aug 08 10:46:31 IST 2015
我在 00:00:30 秒停止了我的线程,但我的函数在 00:00:30 秒后自动调用
任何人都可以帮助我,我如何使用线程在固定时间间隔内调用任何函数就像当我单击开始按钮时,我的线程将启动并调用函数,然后等待 2 分钟。2分钟后再次调用我的函数并重复循环。如果我单击停止按钮,则线程将停止,直到我使用开始按钮启动线程。