java 积累资料
1.java lookandfeel获得本地系统的UI风格
try{
String lookAndFeel = javax.swing.UIManager.getSystemLookAndFeelClassName();
UIManager.setLookAndFeel(lookAndFeel);
}catch(Exception e){
e.printStackTrace();
}
2.java获得操作系统类型
String osName = (String) AccessController.doPrivileged(
new GetPropertyAction("os.name"));
System.out.println("操作系统为：" + osName);
3.java判断ip地址
Pattern pattern = Pattern.compile( "^((\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5]|[*])\\.){3}(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5]|[*])$" );
return pattern.matcher( str ).matches();
4.java获取系统IP地址和MAC地址
package cn.com.test;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class CCSFDs {
public static void main(String[] args) throws Exception {
String osname = System.getProperty("os.name");
System.out.println("你的操作系统是" + osname);
System.out.println("你的IP是" + getWIndowsIp());
System.out.println("你的mac地址 " + getLocalWindowsMAC());
}
private static String getLocalWindowsMAC() throws Exception {
Runtime rt = Runtime.getRuntime();
Process process = rt.exec("ipconfig /all");
BufferedReader in = new BufferedReader(new InputStreamReader(process
.getInputStream()));
String s;
while ((s = in.readLine()) != null) {
s = s.trim();
if (s.startsWith("Physical Address")) {
s = s.substring("Physical Address".length()).trim();
int pos = s.indexOf(": ");
if (pos > -1) {
String mac = s.substring(pos + ": ".length()).trim();
return mac;
}
}
}
return null;
}
private static String getWIndowsIp(){
String ip ="";
Runtime rt = Runtime.getRuntime();
Process process = null;
try {
process = rt.exec("ipconfig /all");
BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream()));
String s;
while ((s = in.readLine()) != null) {
s = s.trim();
if (s.startsWith("IP Address")) {
s = s.substring("IP Address".length()).trim();
int pos = s.indexOf(": ");
if (pos > -1) {
ip = s.substring(pos + ": ".length()).trim();
}
}
}
} catch (IOException e) {
e.printStackTrace();
}
return ip;
}
}
5.java获取linux操作系统的网卡信息（包括名称.....）
public class NetworkParameterDemo { |
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public static void main(String[] args) throws Exception { |
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Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); |
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while (en.hasMoreElements()) { |
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NetworkInterface ni = en.nextElement(); |
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printParameter(ni); |
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} |
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} |
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public static void printParameter(NetworkInterface ni) throws SocketException { |
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System.out.println(" Name = " + ni.getName()); |
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System.out.println(" Display Name = " + ni.getDisplayName()); |
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System.out.println(" Is up = " + ni.isUp()); |
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System.out.println(" Support multicast = " + ni.supportsMulticast()); |
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System.out.println(" Is loopback = " + ni.isLoopback()); |
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System.out.println(" Is virtual = " + ni.isVirtual()); |
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System.out.println(" Is point to point = " + ni.isPointToPoint()); |
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System.out.println(" Hardware address = " + ni.getHardwareAddress()); |
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System.out.println(" MTU = " + ni.getMTU()); |
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System.out.println("\nList of Interface Addresses:"); |
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List<InterfaceAddress> list = ni.getInterfaceAddresses(); |
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Iterator<InterfaceAddress> it = list.iterator(); |
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while (it.hasNext()) { |
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InterfaceAddress ia = it.next(); |
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System.out.println(" Address = " + ia.getAddress()); |
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System.out.println(" Broadcast = " + ia.getBroadcast()); |
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System.out.println(" Network prefix length = " + ia.getNetworkPrefixLength()); |
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System.out.println(""); |
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} |
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} |
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} |