Get_PC_Info.rar_获取IP地址

package ARP_Soft; import java.net.InetAddress; import java.io.InputStream; import java.io.BufferedInputStream; import java.io.IOException; import java.text.ParseException; import java.util.StringTokenizer; public final class Get_PC_Info { public static String getMacAddress(){ String os = System.getProperty("os.name"); try { if (os.startsWith("Windows")) { try { return windowsParseMacAddress(windowsRunIpConfigCommand()); } catch (IOException e) { e.printStackTrace(); } } else if (os.startsWith("Linux")) { try { return linuxParseMacAddress(linuxRunIfConfigCommand()); } catch (IOException e) { e.printStackTrace(); } } else { System.out.println("unknown operating system: " + os); } } catch (ParseException ex) { ex.printStackTrace(); } return null; } /* * Linux stuff */ private static String linuxParseMacAddress(String ipConfigResponse) throws ParseException { String localHost = null; try { localHost = InetAddress.getLocalHost().getHostAddress(); } catch (java.net.UnknownHostException ex) { ex.printStackTrace(); throw new ParseException(ex.getMessage(), 0); } StringTokenizer tokenizer = new StringTokenizer(ipConfigResponse, "\n"); String lastMacAddress = null; while (tokenizer.hasMoreTokens()) { String line = tokenizer.nextToken().trim(); boolean containsLocalHost = line.indexOf(localHost) >= 0; // see if line contains IP address if (containsLocalHost && lastMacAddress != null) { return lastMacAddress; } // see if line contains MAC address int macAddressPosition = line.indexOf("HWaddr"); if (macAddressPosition <= 0) continue; String macAddressCandidate = line.substring(macAddressPosition + 6) .trim(); if (linuxIsMacAddress(macAddressCandidate)) { lastMacAddress = macAddressCandidate; continue; } } ParseException ex = new ParseException("cannot read MAC address for " + localHost + " from [" + ipConfigResponse + "]", 0); ex.printStackTrace(); throw ex; } private static boolean linuxIsMacAddress(String macAddressCandidate) { if (macAddressCandidate.length() != 17) return false; return true; } private static String linuxRunIfConfigCommand() throws IOException { Process p = Runtime.getRuntime().exec("ifconfig"); InputStream stdoutStream = new BufferedInputStream(p.getInputStream()); StringBuffer buffer = new StringBuffer(); for (;;) { int c = stdoutStream.read(); if (c == -1) break; buffer.append((char) c); } String outputText = buffer.toString(); stdoutStream.close(); return outputText; } /* * Windows stuff */ private static String windowsParseMacAddress(String ipConfigResponse) throws ParseException { String localHost = null; try { localHost = InetAddress.getLocalHost().getHostAddress(); } catch (java.net.UnknownHostException ex) { ex.printStackTrace(); throw new ParseException(ex.getMessage(), 0); } StringTokenizer tokenizer = new StringTokenizer(ipConfigResponse, "\n"); String lastMacAddress = null; while (tokenizer.hasMoreTokens()) { String line = tokenizer.nextToken().trim(); // see if line contains IP address if (line.endsWith(localHost) && lastMacAddress != null) { return lastMacAddress; } // see if line contains MAC address int macAddressPosition = line.indexOf(":"); if (macAddressPosition <= 0) continue; String macAddressCandidate = line.substring(macAddressPosition + 1) .trim(); if (windowsIsMacAddress(macAddressCandidate)) { lastMacAddress = macAddressCandidate; continue; } } ParseException ex = new ParseException("cannot read MAC address from [" + ipConfigResponse + "]", 0); ex.printStackTrace(); throw ex; } private static boolean windowsIsMacAddress(String macAddressCandidate) { if (macAddressCandidate.length() != 17) return false; return true; } private static String windowsRunIpConfigCommand() throws IOException { Process p = Runtime.getRuntime().exec("ipconfig /all"); InputStream stdoutStream = new BufferedInputStream(p.getInputStream()); StringBuffer buffer = new StringBuffer(); for (;;) { int c = stdoutStream.read(); if (c == -1) break; buffer.append((char) c); } String outputText = buffer.toString(); stdoutStream.close(); return outputText; } //////////////////////////////////////////////////////////////////////////////// public static void main(String[] args) { try { System.out.println("本PC信息如下："); System.out.println("操作系统: "+System.getProperty("os.name")); System.out.println("IP 地 址: "+InetAddress.getLocalHost().getHostAddress()); System.out.println("物理地址: "+getMacAddress()); } catch (Throwable t) { t.printStackTrace(); } } }