java代码获得本地ip,java获取本地地址

如何用java获取本地ip地址

import java.net.Inet4Address;

import java.net.InetAddress;

import java.net.NetworkInterface;

import java.net.SocketException;

import java.util.ArrayList;

import java.util.Enumeration;

import java.util.List;

/**

* @author Becolette

* @description TODO

* @date 2015-11-5 下午01:58:46

*/

public class IpAddress {

public static String find() {

ListString ips = new ArrayListString();

// 返回所有网络接口的一个枚举实例

Enumeration? allNetInterfaces = null;

try {

allNetInterfaces = NetworkInterface.getNetworkInterfaces();

} catch (SocketException e) {

e.printStackTrace();

}

InetAddress ip = null;

while (allNetInterfaces.hasMoreElements()) {

NetworkInterface netInterface = (NetworkInterface) allNetInterfaces.nextElement();

EnumerationInetAddress addresses = netInterface.getInetAddresses();

while (addresses.hasMoreElements()) {

// 获得当前网络接口

ip = (InetAddress) addresses.nextElement();

if (ip != null ip instanceof Inet4Address ip.getHostAddress().indexOf(".") != -1) {

ips.add(ip.getHostAddress());

}

}

}

if (ips.size() == 1) {

return ips.get(0);

} else {

for (String ipa : ips) {

if (!"127.0.0.1".equals(ipa)) {

return ipa;

}

}

}

return MacAddress.find();

}

}

相关问答

Q1: 在Java程序中获取本机IP

import java.net.InetAddress;

import java.util.Enumeration;

import java.net.NetworkInterface;

import java.util.*;

public class ipdisplay {

/**

* @param args

* @throws Exception

*/

public static void main(String[] args) throws Exception {

// TODO Auto-generated method stub

String allipaddress;

ArrayList ar = new ArrayList();

Enumeration netInterfaces = NetworkInterface.getNetworkInterfaces();

while (netInterfaces.hasMoreElements()) {

NetworkInterface ni = (NetworkInterface) netInterfaces.nextElement();

Enumeration cardipaddress = ni.getInetAddresses();

InetAddress ip = (InetAddress) cardipaddress.nextElement();

if(!ip.getHostAddress().equalsIgnoreCase("127.0.0.1") )

{ ar.add(ni.getName()+":");

allipaddress=ip.getHostAddress();

while(cardipaddress.hasMoreElements())

{

ip = (InetAddress) cardipaddress.nextElement();

allipaddress=allipaddress+" , "+ip.getHostAddress();

}

ar.add(allipaddress);

}

else

continue;

}

for(int i=0;iar.size();)

{

System.out.println(ar.get(i++));

}

}

}

Q2: JAVA怎么获取IP地址

这个是获取不到的，因为有代理、端口映射等等转发情况的存在。为什么不保存相对路径/域名/或者在服务器上某个配置文件中配置域名/数据库中一个表/数据库中某个字段保存当前服务器的ip地址呢？

Q3: java 如何提取本地IP

import java.net.*;

public class Test {

public static void main(String[] args) throws Exception {

String ip = InetAddress.getLocalHost().getHostAddress();

System.out.println(ip);

}

}