我有一个不寻常的问题:如何使用Swing创建"命令控制台"?
我想要的是一个控制台,用户输入命令,按回车键,命令输出显示在.我不想让用户更改"提示"和旧输出.我在想像Windows CMD.EXE.
我看了这个问题,但它没有回答我的问题.
BeanShell提供了一个JConsole,一个命令行输入控制台,具有以下功能:
BeanShell JAR可从http://www.beanshell.org/download.html获得,源代码可通过SVN获得svn co http://ikayzo.org/svn/beanshell
有关JConsole的更多信息,请访问http://www.beanshell.org/manual/jconsole.html
以下是在应用程序中使用BeanShell的JConsole的示例:
import java.awt.Color;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
import javax.swing.JFrame;
import bsh.util.GUIConsoleInterface;
import bsh.util.JConsole;
/**
* Example of using the BeanShell project's JConsole in
* your own application.
*
* JConsole is a command line input console that has support
* for command history, cut/copy/paste, a blinking cursor,
* command completion, Unicode character input, coloured text
* output and comes wrapped in a scroll pane.
*
* For more info, see http://www.beanshell.org/manual/jconsole.html
*
* @author tukushan
*/
public class JConsoleExample {
public static void main(String[] args) {
//define a frame and add a console to it
JFrame frame = new JFrame("JConsole example");
JConsole console = new JConsole();
frame.getContentPane().add(console);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(600,400);
frame.setVisible(true);
inputLoop(console, "JCE (type 'quit' to exit): ");
System.exit(0);
}
/**
* Print prompt and echos commands entered via the JConsole
*
* @param console a GUIConsoleInterface which in addition to
* basic input and output also provides coloured text
* output and name completion
* @param prompt text to display before each input line
*/
private static void inputLoop(GUIConsoleInterface console, String prompt) {
Reader input = console.getIn();
BufferedReader bufInput = new BufferedReader(input);
String newline = System.getProperty("line.separator");
console.print(prompt, Color.BLUE);
String line;
try {
while ((line = bufInput.readLine()) != null) {
console.print("You typed: " + line + newline, Color.ORANGE);
// try to sync up the console
//System.out.flush();
//System.err.flush();
//Thread.yield(); // this helps a little
if (line.equals("quit")) break;
console.print(prompt, Color.BLUE);
}
bufInput.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
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注意:JConsole返回";" 如果您单独按Enter键.
您可以使用命令行通过 Plexus 执行任意命令。它处理参数的转义、环境特定的执行,并允许您将使用者附加到 stdout 和 stderr,让您专注于处理。
这是我给出的另一个答案的链接,展示了如何设置命令行并处理输出。