java获取当前服务的IP和端口

#java获取当前服务的IP和端口| 来源: 网络整理| 查看: 265

描述:

我们有时候需要获取当前服务的IP和端口

实现： import javax.management.MBeanServer; import javax.management.MalformedObjectNameException; import javax.management.ObjectName; import javax.management.Query; import java.lang.management.ManagementFactory; import java.net.InetAddress; import java.util.Set; //此类主要获取的是win上的ip和端口 public class IPPortUtil { /** * @return * @throws MalformedObjectNameException * 获取当前机器的端口号 */ public static String getLocalPort() throws MalformedObjectNameException { MBeanServer beanServer = ManagementFactory.getPlatformMBeanServer(); Set objectNames = beanServer.queryNames(new ObjectName("*:type=Connector,*"), Query.match(Query.attr("protocol"), Query.value("HTTP/1.1"))); String port = objectNames.iterator().next().getKeyProperty("port"); return port; } /** * @return * 获取当前机器的IP */ public static String getLocalIP() { InetAddress addr = null; try { addr = InetAddress.getLocalHost(); } catch (Exception e) { e.printStackTrace(); } byte[] ipAddr = addr.getAddress(); String ipAddrStr = ""; for (int i = 0; i < ipAddr.length; i++) { if (i > 0) { ipAddrStr += "."; } ipAddrStr += ipAddr[i] & 0xFF; } return ipAddrStr; } }

以上方法在Windows上获取ip和端口都是没有问题的，但在Linux服务器上就会出现问题，获取ip如果Linux没有对网络进行设置就会获取到127.0.0.1的问题和获取端口报错问题，此问题也给一些人带入坑中表示抱歉；以下为liunx机器获取ip和端口，在Windows也可以用。

import org.springframework.web.context.request.RequestContextHolder; import org.springframework.web.context.request.ServletRequestAttributes; import java.net.Inet4Address; import java.net.InetAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.Enumeration; public class GetIpAndPort { //获取ip public static String getLocalIP() { String localIP = "127.0.0.1"; try { OK: for (Enumeration interfaces = NetworkInterface.getNetworkInterfaces(); interfaces.hasMoreElements(); ) { NetworkInterface networkInterface = interfaces.nextElement(); if (networkInterface.isLoopback() || networkInterface.isVirtual() || !networkInterface.isUp()) { continue; } Enumeration addresses = networkInterface.getInetAddresses(); while (addresses.hasMoreElements()) { InetAddress address = addresses.nextElement(); if (address instanceof Inet4Address) { localIP = address.getHostAddress(); break OK; } } } } catch (SocketException e) { e.printStackTrace(); } return localIP; } //通过request获取ip public static String getIp() { return ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest().getServerName(); } //通过request获取端口 public static String getLocalPort() { return ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest().getServerPort() + ""; } public static String getIpAndPort() { return getLocalIP() + ":" + getLocalPort(); } }

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