使用 java.awt.Robot 输入字符串

Question

我已经知道如何使用 java.awt.Robot 使用 keyPress 键入单个字符，如下所示。我如何才能将 whole 预定义的 String 值一次简单地输入文本框？

robot.keyPress(KeyEvent.VK_1);
robot.keyPress(KeyEvent.VK_1);
robot.keyPress(KeyEvent.VK_1);  
// instead, enter String x = "111"

Answer 1

常见的解决方案是使用剪贴板：

String text = "Hello World";
StringSelection stringSelection = new StringSelection(text);
Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
clipboard.setContents(stringSelection, stringSelection);

Robot robot = new Robot();
robot.keyPress(KeyEvent.VK_CONTROL);
robot.keyPress(KeyEvent.VK_V);
robot.keyRelease(KeyEvent.VK_V);
robot.keyRelease(KeyEvent.VK_CONTROL);

Answer 2

您需要 "type" 角色，这是一个按下和释放动作...

robot.keyPress(KeyEvent.VK_1);  
robot.keyRelease(KeyEvent.VK_1);

现在你可以复制粘贴三次，但我只是把它放在一个循环中

Answer 3

您可以在字符串中输入值，然后您可以按照 Eng.Fouad 的说明使用该字符串。不过用起来没什么乐趣，你可以试试这个

Robot robot = new Robot();
robot.keyPress(KeyEvent.VK_H);
robot.keyRelease(KeyEvent.VK_H);
robot.keyPress(KeyEvent.VK_E);
robot.keyRelease(KeyEvent.VK_E);
robot.keyPress(KeyEvent.VK_L);
robot.keyRelease(KeyEvent.VK_L);
robot.keyPress(KeyEvent.VK_L);
robot.keyRelease(KeyEvent.VK_L);
robot.keyPress(KeyEvent.VK_O);
robot.keyRelease(KeyEvent.VK_O);

你也可以使用Thread.sleep这样它可以慢慢输入数据位。

Answer 4

我想我已经实现了更好的解决方案，也许有人发现它有用（主要方法是从枚举 KeyCode 中读取所有值，而不是将其放入 HashMap 并稍后使用它来查找 int 键代码）

public class KeysMapper {

    private static HashMap<Character, Integer> charMap = new HashMap<Character, Integer>();

    static {
        for (KeyCode keyCode : KeyCode.values()) {
            if (keyCode.impl_getCode() >= 65 && keyCode.impl_getCode() <= 90){
                charMap.put(keyCode.getName().toLowerCase().toCharArray()[0], keyCode.impl_getCode());
            }
            else{
                charMap.put(keyCode.getName().toLowerCase().toCharArray()[0], keyCode.impl_getCode());
            }
        }
    }
    public static Key charToKey(char c){
        if(c>=65 && c<=90){
            return new Key(charMap.get(c), true);
        } else {
            return new Key(charMap.get(c), false);
        }
    }

    public static List<Key> stringToKeys(String text){
        List<Key> keys = new ArrayList<Key>();
        for (char c : text.toCharArray()) {
            keys.add(charToKey(c));
        }
        return keys;
    }

我还创建了一个键 class 来知道是输入大写字符还是小写字符：

public class Key {

    int keyCode;
    boolean uppercase;

//getters setter constructors}

最后你可以像那样使用它（对于单个字符）robot.keyPress(charToKey('a').getKeyCode()); 如果你想按大写字母，你必须同时按下和释放 shift 键

Answer 5

从 Java 7 开始，您还可以使用 KeyEvent.getExtendedKeyCodeForChar(c)。仅小写字母的示例可以是：

void sendKeys(Robot robot, String keys) {
    for (char c : keys.toCharArray()) {
        int keyCode = KeyEvent.getExtendedKeyCodeForChar(c);
        if (KeyEvent.CHAR_UNDEFINED == keyCode) {
            throw new RuntimeException(
                "Key code not found for character '" + c + "'");
        }
        robot.keyPress(keyCode);
        robot.delay(100);
        robot.keyRelease(keyCode);
        robot.delay(100);
    }
}

Answer 6

这不会键入整个 "string" 但有助于一次键入一个字符以外的任何内容。

    Runtime.getRuntime().exec("notepad.exe");//or anywhere you want.
   Thread.sleep(5000);//not required though gives a good feel.
    Robot r=new Robot();      
     String a="Hi My name is Whatever you want to say.";
    char c;
     int d=a.length(),e=0,f=0;

     while(e<=d)
    {
     c=a.charAt(e);
     f=(int) c; //converts character to Unicode. 
      r.keyPress(KeyEvent.getExtendedKeyCodeForChar(f));
     e++;
       Thread.sleep(150);

       }

看到它完美运行，太棒了！虽然它不适用于 unicode 无法追踪的特殊字符，如 |,!...等。

Answer 7

    StringSelection path = new StringSelection("path of your document ");

    // create an object to desktop

    Toolkit tol = Toolkit.getDefaultToolkit();

    // get control of mouse cursor

    Clipboard c = tol.getSystemClipboard();

    // copy the path into mouse
    c.setContents(path, null);

    // create a object of robot class

    Robot r = new Robot();

    r.keyPress(KeyEvent.VK_CONTROL);
    r.keyPress(KeyEvent.VK_V);
    r.keyRelease(KeyEvent.VK_CONTROL);
    r.keyRelease(KeyEvent.VK_V);
    r.keyPress(KeyEvent.VK_ENTER);
    r.keyRelease(KeyEvent.VK_ENTER);

}

使用 java.awt.Robot 输入字符串

Type a String using java.awt.Robot

java

swing

awtrobot