用Java獲取本機IP地址,須要處理:oop
1. 多塊網卡。spa
2. 排除loopback設備、虛擬網卡code
看似簡單的代碼,寫起來仍是要當心一些的。blog
HBase客戶端獲取本機IP的代碼提供了一個很好的參考。沒有特殊需求的話,拷貝過去用吧:)ip
// From HBase Addressing.Java private static InetAddress getIpAddress(AddressSelectionCondition condition) throws SocketException { // Before we connect somewhere, we cannot be sure about what we'd be bound to; however, // we only connect when the message where client ID is, is long constructed. Thus, // just use whichever IP address we can find. Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces(); while (interfaces.hasMoreElements()) { NetworkInterface current = interfaces.nextElement(); if (!current.isUp() || current.isLoopback() || current.isVirtual()) continue; Enumeration<InetAddress> addresses = current.getInetAddresses(); while (addresses.hasMoreElements()) { InetAddress addr = addresses.nextElement(); if (addr.isLoopbackAddress()) continue; if (condition.isAcceptableAddress(addr)) { return addr; } } } throw new SocketException("Can't get our ip address, interfaces are: " + interfaces); }