java 中的 java.net.ProtocolFamily 类
原文:https://www . geesforgeks . org/Java-net-protocol family-class-in-Java/
ProtocolFamily 是一个 java 接口。 java.net.ProtocolFamily 代表了一个通信协议家族。Java . net . standard ProtocolFamily实现 ProtocolFamily 接口。
public interface ProtocolFamily
Java . net . protocol family 的方法
java.net.ProtocolFamily 界面只包含一个方法:
| s。没有。 | way | explain | Return type | | --- | --- | --- | --- | | 1。 | 名称() | The name () method returns the name of the protocol family. | 线 |使用协议家族接口
| 没有。 | 包裹 | 修饰符和类型 | 名字 | 描述 | | --- | --- | --- | --- | --- | | 1. | java.net | 班级 | 标准协议家庭 | 标准协议类定义了通信协议的标准系列。 | | 2. | java.nio.channels | 静态数据图表通道 | 打开(ProtocolFamily 家族) | 方法打开一个数据报通道。 | | 3. | java.nio.channels.spi | 抽象数据图表通道 | selector provider . OpenDataGramChannel(ProtocolFamily 家族) | 打开数据报通道。 |更好理解 ProtocolFamily 接口的 Java 程序
Java 语言(一种计算机语言，尤用于创建网站)
// Java Program to get Protocol
// family for an IP Address
// import Guava library
import com.google.common.net.InetAddresses;
import java.io.*;
import java.net.*;
class GFG {
public static void main(String[] args)
{
try {
// to get the ip address of
InetAddress ip
= InetAddress.getByName("45.22.30.39");
System.out.println("Host Name is "
+ ip.getHostName());
// getProtocolFamily() will check and return the
// protocol family of the given IP
ProtocolFamily protocolFamily
= getProtocolFamily(ip);
System.out.println("Protocol family of the "
+ ip.getHostName() + " is "
+ protocolFamily);
}
catch (Exception e) {
System.out.println("Some exception"
+ e.getMessage());
}
}
public static ProtocolFamily
getProtocolFamily(InetAddress inetAddress)
{
// to check if address is valid or not
if (InetAddresses.isInetAddress(
inetAddress.getHostName())) {
// if address is valid
// will return the protocol family of the
// address
return StandardProtocolFamily.INET;
}
else {
// address is not valid
System.out.println(
"Address " + inetAddress
+ "is invalid hence can't determine the protocol family");
}
return StandardProtocolFamily.INET;
}
}
Output
Host Name is 45.22.30.39
Protocol family of the 45.22.30.39 is INET
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