欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  Java

java获取系统环境变量和系统属性

程序员文章站 2022-06-06 20:24:19
...
java获取系统环境变量和系统属性
代码

package jdk.system;

import java.util.Map;
import java.util.Properties;
import java.util.Set;

/**
 * @author <a href="mailto:zhangting@taobao.com">张挺</a>
 * @since 2010-3-26 10:11:16
 */
public class SystemEnvDemo {
    public static void main(String[] args) {
        System.out.println("current system environment variable:");
        Map<String,String> map = System.getenv();
        Set<Map.Entry<String,String>> entries = map.entrySet();
        for (Map.Entry<String, String> entry : entries) {
            System.out.println(entry.getKey() + ":" + entry.getValue());
        }

        System.out.println("---------------");
        System.out.println("current system properties:");
        Properties properties = System.getProperties();
        Set<Map.Entry<Object, Object>> set = properties.entrySet();
        for (Map.Entry<Object, Object> objectObjectEntry : set) {
            System.out.println(objectObjectEntry.getKey() + ":" + objectObjectEntry.getValue());
        }

    }
}


更多java获取系统环境变量和系统属性相关文章请关注PHP中文网!