Java中服务名称的端口? [英] Port to Service Name in Java?

问题描述

我的服务文件(C:WINDOWSsystem32driversetcservices)有一堆端口到服务的映射:

My services file (C:WINDOWSsystem32driversetcservices) has a bunch of Port to Service mappings:

echo                7/tcp
echo                7/udp
discard             9/tcp    sink null
discard             9/udp    sink null
systat             11/tcp    users                  #Active users
systat             11/udp    users                  #Active users
daytime            13/tcp
daytime            13/udp
qotd               17/tcp    quote                  #Quote of the day
qotd               17/udp    quote                  #Quote of the day
chargen            19/tcp    ttytst source          #Character generator

我想找到一种方法，通过 Java API(而不是解析)或第三方库以编程方式从端口转换为服务名称?

I am trying to find a way to convert from a Port to the Service Name programmatically through Java APIs (instead of parsing) or third party libraries?

伪代码:

Port port = new Port("443","tcp");
String service = port.getService();
System.out.println(service);  //prints "https"

有什么好的方法可以做到这一点吗?

Is there any good way to accomplish this?

推荐答案

您正在寻找的是 Linux getservbyport() 系统调用的 Java 实现.看看 http://github.com/wmeissner/jnr-netdb.另外，在 Google 上搜索 java getservbyport

What you are looking for is a Java implementation of the Linux getservbyport() system call. Take a look at http://github.com/wmeissner/jnr-netdb. Also, do a Google search for java getservbyport

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