JAVA swing 怎么获取调用程序界面中的文本框，并向光标位置填写密码?

Question

然后用重定向输出的方法自动填写密码

Answer 1

Java有直接可调用密码框方法啊。可以参考下面的代码。

import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.border.EmptyBorder;

public class JPasswordFieldDemo extends JFrame {
public JPasswordFieldDemo(){
this.setTitle("密码框的使用");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setBounds(100, 100, 250, 100);
JPanel contentPane=new JPanel();
contentPane.setBorder(new EmptyBorder(5,5,5,5));
contentPane.setLayout(new BorderLayout(0,0));
this.setContentPane(contentPane);
JLabel label=new JLabel("密码：");
contentPane.add(label,BorderLayout.WEST);
JPasswordField passWordField=new JPasswordField();
contentPane.add(passWordField,BorderLayout.CENTER);
this.setVisible(true);
}
public static void main(String []args){
JPasswordFieldDemo example=new JPasswordFieldDemo();
}
}