需要的jar包：

jar包链接：

java代码：

import java.awt.BorderLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JOptionPane;

import javax.swing.SwingUtilities;

import com.github.sarxos.webcam.Webcam;

import com.github.sarxos.webcam.WebcamPanel;

import com.github.sarxos.webcam.WebcamResolution;

import com.github.sarxos.webcam.WebcamUtils;

import com.github.sarxos.webcam.util.ImageUtils;

public class testWebCam {

public static void main(String[] args) throws InterruptedException {

Webcam webcam = Webcam.getDefault();

webcam.setViewSize(WebcamResolution.VGA.getSize());

WebcamPanel panel = new WebcamPanel(webcam);

panel.setFPSDisplayed(true);

panel.setDisplayDebugInfo(true);

panel.setImageSizeDisplayed(true);

panel.setMirrored(true);

JFrame window = new JFrame("Test webcam panel");

window.add(panel);

window.setResizable(true);

window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

window.pack();

window.setVisible(true);

final JButton button = new JButton("拍照");

window.add(panel, BorderLayout.CENTER);

window.add(button, BorderLayout.SOUTH);

window.setResizable(true);

window.pack();

window.setVisible(true);

button.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

button.setEnabled(false); // 设置按钮不可点击

// 实现拍照保存-------start

String fileName = "D://" + System.currentTimeMillis(); // 保存路径即图片名称(不用加后缀)

WebcamUtils.capture(webcam, fileName, ImageUtils.FORMAT_PNG);

SwingUtilities.invokeLater(new Runnable() {

@Override

public void run() {

JOptionPane.showMessageDialog(null, "拍照成功");

button.setEnabled(true); // 设置按钮可点击

return;

}

});

// 实现拍照保存-------end

}

});

}

}