获取Java系统相关信息

 1 package com.test;
 2 
 3 import java.util.Properties;
 4 import java.util.Map.Entry;
 5 
 6 import org.junit.Test;
 7 
 8 public class SystemTest {
 9 
10     /**
11      * 获取Java系统相关信息
12      * @throws Exception
13      */
14     @Test
15     public void testSys() throws Exception {
16         //System.out.println();
17         Properties properties = System.getProperties();
18         
19         for(Entry<Object, Object> entry : properties.entrySet()){
20             System.out.println(entry.getKey()+"===>"+entry.getValue());
21         }
22     }
23 }