如何重启java应用程序，记住它的命令行参数 [英] how to restart java application, remembering its command line arguments

问题描述

我有一个java应用程序。它可以通过几个命令行标志启动。我想提供用户重启应用程序的能力。

I have a java application. It can be started with couple of command line flags. I want to provide ability "restart" the application by user.

目前我们将参数保存在控制文件中，在重新启动应用程序时读取它。重启应用程序的最佳方法是什么 - 如何保留命令行参数？

Currently we save the the arguments on a control file, reads it when restarting the application. What is the best way to restart the application - how can I retain the command line arguments?

推荐答案

使用您可以检索的RuntimeMXBean，Classpath，Bootclasspath等。

Using the RuntimeMXBean you could retrieve , Classpath, Bootclasspath etc.

package com;

import java.lang.management.ManagementFactory;
import java.lang.management.RuntimeMXBean;

class JMXTest {
    public static void main(String args[]) {
        try {
            for ( int i = 0 ; i < args.length ; i++ ) 
                 System.out.println( "args   :" + args[i] );

            RuntimeMXBean mx = ManagementFactory.getRuntimeMXBean();
            System.out.println( "boot  CP:" + mx.getBootClassPath() );
            System.out.println( "      CP:" + mx.getClassPath() );
            System.out.println( "cmd args:" + mx.getInputArguments() );
        }
        catch( Exception e ) {
            e.printStackTrace();
        }
    }
}

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