Java中的端口到服务名称？ [英] Port to Service Name in Java?

问题描述

我的服务文件（C：\ WINDOWS \ system32 \drivers \ etc \ services）有一堆端口到服务的映射：

My services file (C:\WINDOWS\system32\drivers\etc\services) 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

我试图通过Java API（而不是解析）或第三方库以编程方式找到从端口转换为服务名称的方法？

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?

Pseudocode：

Pseudocode:

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

有没有什么好办法可以做到这一点？

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。请查看 http://github.com/wmeissner/jnr-netdb 。此外，谷歌搜索 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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