Java获取本机的IP与MAC地址_Java设置代理
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2022-01-10 19:57:29
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有些机器有许多虚拟的网卡,获取IP地址时会出现一些意外,所以需要一些验证:
获取mac地址
// 获取mac地址 public static String getMacAddress() { try { Enumeration<NetworkInterface> allNetInterfaces = NetworkInterface.getNetworkInterfaces(); byte[] mac = null; while (allNetInterfaces.hasMoreElements()) { NetworkInterface netInterface = (NetworkInterface) allNetInterfaces.nextElement(); if (netInterface.isLoopback() || netInterface.isVirtual() || netInterface.isPointToPoint() || !netInterface.isUp()) { continue; } else { mac = netInterface.getHardwareAddress(); if (mac != null) { StringBuilder sb = new StringBuilder(); for (int i = 0; i < mac.length; i ) { sb.append(String.format("X%s", mac[i], (i < mac.length - 1) ? "-" : "")); } if (sb.length() > 0) { return sb.toString(); } } } } } catch (Exception e) { _logger.error("MAC地址获取失败", e); } return ""; }
获取ip地址
// 获取ip地址 public static String getIpAddress() { try { Enumeration<NetworkInterface> allNetInterfaces = NetworkInterface.getNetworkInterfaces(); InetAddress ip = null; while (allNetInterfaces.hasMoreElements()) { NetworkInterface netInterface = (NetworkInterface) allNetInterfaces.nextElement(); if (netInterface.isLoopback() || netInterface.isVirtual() || netInterface.isPointToPoint() || !netInterface.isUp()) { continue; } else { Enumeration<InetAddress> addresses = netInterface.getInetAddresses(); while (addresses.hasMoreElements()) { ip = addresses.nextElement(); if (ip != null && ip instanceof Inet4Address) { return ip.getHostAddress(); } } } } } catch (Exception e) { _logger.error("IP地址获取失败", e); } return ""; }
以上的代码中netInterface.isLoopback() || netInterface.isVirtual() || netInterface.isPointToPoint() || !netInterface.isUp() 能很好地把一些非物理网卡或无用网上过滤掉,然后再取网上的IPV4地址即可。说到这里,还有一些常用的:
1、获取当前机器的操作系统
public final static String WIN_OS = "WINDOWS"; public final static String MAC_OS = "MAC"; public final static String LINUX_OS = "LINUX"; public final static String OTHER_OS = "OTHER"; public static String getOS() { if (SystemUtils.IS_OS_WINDOWS){ return WIN_OS; } if (SystemUtils.IS_OS_MAC || SystemUtils.IS_OS_MAC_OSX){ return MAC_OS; } if (SystemUtils.IS_OS_UNIX){ return LINUX_OS; } return OTHER_OS; }
/** * 设置http代理 */ public static void setHttpProxy() { Properties prop = System.getProperties(); // 设置http访问要使用的代理服务器的地址 prop.setProperty("http.proxyHost", HTTP_PROXY_HOST); // 设置http访问要使用的代理服务器的端口 prop.setProperty("http.proxyPort", HTTP_PROXY_PORT); // 设置不需要通过代理服务器访问的主机,可以使用*通配符,多个地址用|分隔 prop.setProperty("http.nonProxyHosts", RemoteConfig.PROXT_FILTER_DOMAIN); } /** * 移除http代理 */ public static void removeHttpProxy() { Properties prop = System.getProperties(); prop.remove("http.proxyHost"); prop.remove("http.proxyPort"); prop.remove("http.nonProxyHosts"); }
在应用启动时,访问HTTP请求前,设置好就行。当然,http.nonProxyHosts可以不用设置,表示所有的HTTP请求都走代理。至于HTTPS代理,类似可以这样设置:
System.setProperty("https.proxyHost", "HTTP_PROXY_HOST"); System.setProperty("https.proxyPort", "HTTP_PROXY_PORT");