ऊपर दिए गए ACCEPTED उत्तर का यह एक कार्यशील उदाहरण है! यह NetIdentity वर्ग दोनों आंतरिक होस्ट आईपी, साथ ही स्थानीय लूपबैक को संग्रहीत करेगा। यदि आप DNS आधारित सर्वर पर हैं, तो जैसा कि ऊपर उल्लेख किया गया है, आपको कुछ और चेक जोड़ने की आवश्यकता हो सकती है, या संभव है कि कॉन्फ़िगरेशन फ़ाइल रूट पर जाएं।
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.Enumeration;
/**
* Class that allows a device to identify itself on the INTRANET.
*
* @author Decoded4620 2016
*/
public class NetIdentity {
private String loopbackHost = "";
private String host = "";
private String loopbackIp = "";
private String ip = "";
public NetIdentity(){
try{
Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
while(interfaces.hasMoreElements()){
NetworkInterface i = interfaces.nextElement();
if(i != null){
Enumeration<InetAddress> addresses = i.getInetAddresses();
System.out.println(i.getDisplayName());
while(addresses.hasMoreElements()){
InetAddress address = addresses.nextElement();
String hostAddr = address.getHostAddress();
// local loopback
if(hostAddr.indexOf("127.") == 0 ){
this.loopbackIp = address.getHostAddress();
this.loopbackHost = address.getHostName();
}
// internal ip addresses (behind this router)
if( hostAddr.indexOf("192.168") == 0 ||
hostAddr.indexOf("10.") == 0 ||
hostAddr.indexOf("172.16") == 0 ){
this.host = address.getHostName();
this.ip = address.getHostAddress();
}
System.out.println("\t\t-" + address.getHostName() + ":" + address.getHostAddress() + " - "+ address.getAddress());
}
}
}
}
catch(SocketException e){
}
try{
InetAddress loopbackIpAddress = InetAddress.getLocalHost();
this.loopbackIp = loopbackIpAddress.getHostName();
System.out.println("LOCALHOST: " + loopbackIp);
}
catch(UnknownHostException e){
System.err.println("ERR: " + e.toString());
}
}
public String getLoopbackHost(){
return loopbackHost;
}
public String getHost(){
return host;
}
public String getIp(){
return ip;
}
public String getLoopbackIp(){
return loopbackIp;
}
}
जब मैं इस कोड को चलाता हूं तो मुझे वास्तव में इस तरह प्रिंट आउट मिलता है:
Software Loopback Interface 1
-127.0.0.1:127.0.0.1 - [B@19e1023e
-0:0:0:0:0:0:0:1:0:0:0:0:0:0:0:1 - [B@7cef4e59
Broadcom 802.11ac Network Adapter
-VIKING.yourisp.com:192.168.1.142 - [B@64b8f8f4
-fe80:0:0:0:81fa:31d:21c9:85cd%wlan0:fe80:0:0:0:81fa:31d:21c9:85cd%wlan0 - [B@2db0f6b2
Microsoft Kernel Debug Network Adapter
Intel Edison USB RNDIS Device
Driver for user-mode network applications
Cisco Systems VPN Adapter for 64-bit Windows
VirtualBox Host-Only Ethernet Adapter
-VIKING:192.168.56.1 - [B@3cd1f1c8
-VIKING:fe80:0:0:0:d599:3cf0:5462:cb7%eth4 - [B@3a4afd8d
LogMeIn Hamachi Virtual Ethernet Adapter
-VIKING:25.113.118.39 - [B@1996cd68
-VIKING:2620:9b:0:0:0:0:1971:7627 - [B@3339ad8e
-VIKING:fe80:0:0:0:51bf:994d:4656:8486%eth5 - [B@555590
Bluetooth Device (Personal Area Network)
-fe80:0:0:0:4c56:8009:2bca:e16b%eth6:fe80:0:0:0:4c56:8009:2bca:e16b%eth6 - [B@3c679bde
Bluetooth Device (RFCOMM Protocol TDI)
Intel(R) Ethernet Connection (2) I218-V
-fe80:0:0:0:4093:d169:536c:7c7c%eth7:fe80:0:0:0:4093:d169:536c:7c7c%eth7 - [B@16b4a017
Microsoft Wi-Fi Direct Virtual Adapter
-fe80:0:0:0:103e:cdf0:c0ac:1751%wlan1:fe80:0:0:0:103e:cdf0:c0ac:1751%wlan1 - [B@8807e25
VirtualBox Host-Only Ethernet Adapter-HHD Software NDIS 6.0 Filter Driver-0000
VirtualBox Host-Only Ethernet Adapter-WFP Native MAC Layer LightWeight Filter-0000
VirtualBox Host-Only Ethernet Adapter-HHD Software NDIS 6.0 Filter Driver-0001
VirtualBox Host-Only Ethernet Adapter-HHD Software NDIS 6.0 Filter Driver-0002
VirtualBox Host-Only Ethernet Adapter-VirtualBox NDIS Light-Weight Filter-0000
VirtualBox Host-Only Ethernet Adapter-HHD Software NDIS 6.0 Filter Driver-0003
VirtualBox Host-Only Ethernet Adapter-QoS Packet Scheduler-0000
VirtualBox Host-Only Ethernet Adapter-HHD Software NDIS 6.0 Filter Driver-0004
VirtualBox Host-Only Ethernet Adapter-WFP 802.3 MAC Layer LightWeight Filter-0000
VirtualBox Host-Only Ethernet Adapter-HHD Software NDIS 6.0 Filter Driver-0005
Intel(R) Ethernet Connection (2) I218-V-HHD Software NDIS 6.0 Filter Driver-0000
Intel(R) Ethernet Connection (2) I218-V-WFP Native MAC Layer LightWeight Filter-0000
Intel(R) Ethernet Connection (2) I218-V-HHD Software NDIS 6.0 Filter Driver-0001
Intel(R) Ethernet Connection (2) I218-V-Shrew Soft Lightweight Filter-0000
Intel(R) Ethernet Connection (2) I218-V-HHD Software NDIS 6.0 Filter Driver-0002
Intel(R) Ethernet Connection (2) I218-V-VirtualBox NDIS Light-Weight Filter-0000
Intel(R) Ethernet Connection (2) I218-V-HHD Software NDIS 6.0 Filter Driver-0003
Intel(R) Ethernet Connection (2) I218-V-QoS Packet Scheduler-0000
Intel(R) Ethernet Connection (2) I218-V-HHD Software NDIS 6.0 Filter Driver-0004
Intel(R) Ethernet Connection (2) I218-V-WFP 802.3 MAC Layer LightWeight Filter-0000
Intel(R) Ethernet Connection (2) I218-V-HHD Software NDIS 6.0 Filter Driver-0005
Broadcom 802.11ac Network Adapter-WFP Native MAC Layer LightWeight Filter-0000
Broadcom 802.11ac Network Adapter-Virtual WiFi Filter Driver-0000
Broadcom 802.11ac Network Adapter-Native WiFi Filter Driver-0000
Broadcom 802.11ac Network Adapter-HHD Software NDIS 6.0 Filter Driver-0003
Broadcom 802.11ac Network Adapter-Shrew Soft Lightweight Filter-0000
Broadcom 802.11ac Network Adapter-HHD Software NDIS 6.0 Filter Driver-0004
Broadcom 802.11ac Network Adapter-VirtualBox NDIS Light-Weight Filter-0000
Broadcom 802.11ac Network Adapter-HHD Software NDIS 6.0 Filter Driver-0005
Broadcom 802.11ac Network Adapter-QoS Packet Scheduler-0000
Broadcom 802.11ac Network Adapter-HHD Software NDIS 6.0 Filter Driver-0006
Broadcom 802.11ac Network Adapter-WFP 802.3 MAC Layer LightWeight Filter-0000
Broadcom 802.11ac Network Adapter-HHD Software NDIS 6.0 Filter Driver-0007
Microsoft Wi-Fi Direct Virtual Adapter-WFP Native MAC Layer LightWeight Filter-0000
Microsoft Wi-Fi Direct Virtual Adapter-Native WiFi Filter Driver-0000
Microsoft Wi-Fi Direct Virtual Adapter-HHD Software NDIS 6.0 Filter Driver-0002
Microsoft Wi-Fi Direct Virtual Adapter-Shrew Soft Lightweight Filter-0000
Microsoft Wi-Fi Direct Virtual Adapter-HHD Software NDIS 6.0 Filter Driver-0003
Microsoft Wi-Fi Direct Virtual Adapter-VirtualBox NDIS Light-Weight Filter-0000
Microsoft Wi-Fi Direct Virtual Adapter-HHD Software NDIS 6.0 Filter Driver-0004
Microsoft Wi-Fi Direct Virtual Adapter-QoS Packet Scheduler-0000
Microsoft Wi-Fi Direct Virtual Adapter-HHD Software NDIS 6.0 Filter Driver-0005
Microsoft Wi-Fi Direct Virtual Adapter-WFP 802.3 MAC Layer LightWeight Filter-0000
Microsoft Wi-Fi Direct Virtual Adapter-HHD Software NDIS 6.0 Filter Driver-0006
मेरे उपयोग के लिए मैं एक Upnp सर्वर स्थापित कर रहा हूं, इसने उस 'पैटर्न' को समझने में मदद की, जिसकी मुझे तलाश थी। दी गई कुछ वस्तुएँ ईथरनेट एडेप्टर, नेटवर्क एडेप्टर, वर्चुअल नेटवर्क एडेप्टर, ड्राइवर और वीपीएन क्लाइंट एडेप्टर हैं। हर चीज का एक पता भी नहीं होता। तो आप इंटरफ़ेस ऑब्जेक्ट को छोड़ना नहीं चाहेंगे।
आप इसे वर्तमान के लिए लूप में भी जोड़ सकते हैं NetworkInterface i
while(interfaces.hasMoreElements()){
Enumeration<InetAddress> addresses = i.getInetAddresses();
System.out.println(i.getDisplayName());
System.out.println("\t- name:" + i.getName());
System.out.println("\t- idx:" + i.getIndex());
System.out.println("\t- max trans unit (MTU):" + i.getMTU());
System.out.println("\t- is loopback:" + i.isLoopback());
System.out.println("\t- is PPP:" + i.isPointToPoint());
System.out.println("\t- isUp:" + i.isUp());
System.out.println("\t- isVirtual:" + i.isVirtual());
System.out.println("\t- supportsMulticast:" + i.supportsMulticast());
}
और आप इस तरह से अपने आउटपुट में जानकारी देखेंगे:
Software Loopback Interface 1
- name:lo
- idx:1
- max trans unit (MTU):-1
- is loopback:true
- is PPP:false
- isUp:true
- isVirtual:false
- supportsMulticast:true
-ADRESS: [127.0.0.1(VIKING-192.168.56.1)]127.0.0.1:127.0.0.1 - [B@19e1023e
-ADRESS: [0:0:0:0:0:0:0:1(VIKING-192.168.56.1)]0:0:0:0:0:0:0:1:0:0:0:0:0:0:0:1 - [B@7cef4e59
Broadcom 802.11ac Network Adapter
- name:wlan0
- idx:2
- max trans unit (MTU):1500
- is loopback:false
- is PPP:false
- isUp:true
- isVirtual:false
- supportsMulticast:true
-ADRESS: [VIKING.monkeybrains.net(VIKING-192.168.56.1)]VIKING.monkeybrains.net:192.168.1.142 - [B@64b8f8f4
-ADRESS: [fe80:0:0:0:81fa:31d:21c9:85cd%wlan0(VIKING-192.168.56.1)]fe80:0:0:0:81fa:31d:21c9:85cd%wlan0:fe80:0:0:0:81fa:31d:21c9:85cd%wlan0 - [B@2db0f6b2
Microsoft Kernel Debug Network Adapter
- name:eth0
- idx:3
- max trans unit (MTU):-1
- is loopback:false
- is PPP:false
- isUp:false
- isVirtual:false
- supportsMulticast:true