获取Java系统相关信息

package com.test;

import java.util.Properties;
import java.util.Map.Entry;

import org.junit.Test;

public class SystemTest {

    /**
     * 获取Java系统相关信息
     * @throws Exception
     */
    @Test
    public void testSys() throws Exception {
        //System.out.println();
        Properties properties = System.getProperties();
        
        for(Entry<Object, Object> entry : properties.entrySet()){
            System.out.println(entry.getKey()+"===>"+entry.getValue());
        }
    }
}