Java擷取hostname代碼__Java

Java擷取hostname代碼

支援Windows和Linux：

public static String getHostNameForLiunx() {try {return (InetAddress.getLocalHost()).getHostName();} catch (UnknownHostException uhe) {String host = uhe.getMessage(); // host = "hostname: hostname"if (host != null) {int colon = host.indexOf(':');if (colon > 0) {return host.substring(0, colon);}}return "UnknownHost";}}public static String getHostName() {if (System.getenv("COMPUTERNAME") != null) {return System.getenv("COMPUTERNAME");} else {return getHostNameForLiunx();}}

如果不想再catch中寫擷取hostname邏輯，可以編寫/etc/hosts，把本機IP和主機名稱對應關係寫清楚。