使用Java发送密钥组合
根据上一个链接（ 如何发送键盘输出 ），Java可以模拟使用Robot类按下的键。 但是，如何模拟按键组合？ 如果我想发送组合“alt-123”这可能使用机器人吗？
简单的答案是肯定的。 基本上，您需要将Alt的keyPress/Release包围在其他keyPress/Release s周围
public class TestRobotKeys { private Robot robot; public static void main(String[] args) { new TestRobotKeys(); } public TestRobotKeys() { try { robot = new Robot(); robot.setAutoDelay(250); robot.keyPress(KeyEvent.VK_ALT); robot.keyPress(KeyEvent.VK_1); robot.keyRelease(KeyEvent.VK_1); robot.keyPress(KeyEvent.VK_2); robot.keyRelease(KeyEvent.VK_2); robot.keyPress(KeyEvent.VK_3); robot.keyRelease(KeyEvent.VK_4); robot.keyRelease(KeyEvent.VK_ALT); } catch (AWTException ex) { ex.printStackTrace(); } } }
这是一个例子
Robot r = new Robot(); Thread.sleep(1000); r.keyPress(KeyEvent.VK_ALT); r.keyPress(KeyEvent.VK_NUMPAD1); r.keyPress(KeyEvent.VK_NUMPAD2); r.keyPress(KeyEvent.VK_NUMPAD3); r.keyRelease(KeyEvent.VK_ALT);
不要忘记发布一些特殊的键，它会在你的机器上做一些疯狂的事情
要使用java.awt.Robot发送密钥组合，以下代码对我来说很好
import java.awt.AWTException; import java.awt.Robot; import java.awt.event.KeyEvent; public class VirtualKeyBoard extends Robot { public VirtualKeyBoard() throws AWTException { super(); } public void pressKeys(String keysCombination) throws IllegalArgumentException { for (String key : keysCombination.split("\\+")) { try { System.out.println(key); this.keyPress((int) KeyEvent.class.getField("VK_" + key.toUpperCase()).getInt(null)); } catch (IllegalAccessException e) { e.printStackTrace(); }catch(NoSuchFieldException e ) { throw new IllegalArgumentException(key.toUpperCase()+" is invalid key\n"+"VK_"+key.toUpperCase() + " is not defined in java.awt.event.KeyEvent"); } } } public void releaseKeys(String keysConbination) throws IllegalArgumentException { for (String key : keysConbination.split("\\+")) { try { // KeyRelease method inherited from java.awt.Robot this.keyRelease((int) KeyEvent.class.getField("VK_" + key.toUpperCase()).getInt(null)); } catch (IllegalAccessException e) { e.printStackTrace(); }catch(NoSuchFieldException e ) { throw new IllegalArgumentException(key.toUpperCase()+" is invalid key\n"+"VK_"+key.toUpperCase() + " is not defined in java.awt.event.KeyEvent"); } } } public static void main(String[] args) throws AWTException { VirtualKeyBoard kb = new VirtualKeyBoard(); String keyCombination = "control+a"; // select all text on screen //String keyCombination = "shift+a+1+c"; // types A!C on screen // For your case //String keyCombination = "alt+1+2+3"; kb.pressKeys(keyCombination); kb.releaseKeys(keyCombination); } }
此代码太靠近本机Windows键盘。 甚至Api键盘“按下”也会进入Eclipse ide，因为那些正常来自ide。 Keys是从当前调试的应用程序生成的！ （jdk 1.8，win 7，hp）