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());
         }
     }
 }