com.vip.vjtools.vjkit.net

Class NetUtil

java.lang.Object

com.vip.vjtools.vjkit.net.NetUtil

@Beta
public class NetUtil
extends Object

关于网络的工具类. 1. 获取本机IP地址与HostName 2. 查找空闲端口

Field Summary

Fields

Modifier and Type	Field and Description
static int	PORT_RANGE_MAX
static int	PORT_RANGE_MIN

Constructor Summary

Constructors

Constructor and Description
NetUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static int	findAvailablePortFrom(int minPort) 从某个端口开始，递增直到65535，找一个空闲端口.
static int	findRandomAvailablePort() 从1024到65535， 随机找一个空闲端口 from Spring SocketUtils
static int	findRandomAvailablePort(int minPort, int maxPort) 在范围里随机找一个空闲端口,from Spring SocketUtils.
static String	getHostName() 获得本地HostName
static InetAddress	getLocalAddress() 获得本地地址
static String	getLocalHost() 获得本地Ip地址
static boolean	isPortAvailable(int port) 测试端口是否空闲可用, from Spring SocketUtils

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PORT_RANGE_MIN

public static final int PORT_RANGE_MIN

See Also:

Constant Field Values

PORT_RANGE_MAX

public static final int PORT_RANGE_MAX

See Also:

Constant Field Values

Constructor Detail

NetUtil

public NetUtil()

Method Detail

getLocalAddress

public static InetAddress getLocalAddress()

获得本地地址

getLocalHost

public static String getLocalHost()

获得本地Ip地址

getHostName

public static String getHostName()

获得本地HostName

isPortAvailable

public static boolean isPortAvailable(int port)

测试端口是否空闲可用, from Spring SocketUtils

findRandomAvailablePort

public static int findRandomAvailablePort()

从1024到65535， 随机找一个空闲端口 from Spring SocketUtils

findRandomAvailablePort

public static int findRandomAvailablePort(int minPort,
                          int maxPort)

在范围里随机找一个空闲端口,from Spring SocketUtils.

Throws:

IllegalStateException - 最多尝试(maxPort-minPort)次，如无空闲端口，抛出此异常.

findAvailablePortFrom

public static int findAvailablePortFrom(int minPort)

从某个端口开始，递增直到65535，找一个空闲端口.

Throws:

IllegalStateException - 范围内如无空闲端口，抛出此异常