com.zcj.util.UtilPc Maven / Gradle / Ivy
package com.zcj.util;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import sun.management.VMManagement;
import java.lang.management.ManagementFactory;
import java.lang.management.RuntimeMXBean;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.UnknownHostException;
import java.util.Formatter;
import java.util.Locale;
public class UtilPc {
private static final Logger logger = LoggerFactory.getLogger(UtilPc.class);
/**
* 获取电脑的MAC地址，如：78-E3-B5-A5-F5-B3
*
* @return 如果获取失败，则返回8位随机数
*/
public static String getMac() {
try (Formatter formatter = new Formatter()) {
InetAddress address = InetAddress.getLocalHost();
NetworkInterface ni = NetworkInterface.getByInetAddress(address);
byte[] mac = ni.getHardwareAddress();
String sMac = "";
for (int i = 0; i < mac.length; i++) {
sMac = formatter.format(Locale.getDefault(), "%02X%s", mac[i], (i < mac.length - 1) ? "-" : "")
.toString();
}
return sMac;
} catch (Exception e) {
logger.warn("获取MAC地址失败，将使用8位随机数替代");
}
return UtilRandom.getRandomChar(8);
}
/**
* 获取主机名称
*
* @return 如果获取失败，则返回NULL
*/
public static String getHostName() {
try {
return InetAddress.getLocalHost().getHostName();
} catch (UnknownHostException e) {
}
return null;
}
/**
* 获取主机IP地址
*
* @return 如果获取失败，则返回NULL
*/
public static String getHostAddress() {
try {
return InetAddress.getLocalHost().getHostAddress();
} catch (UnknownHostException e) {
}
return null;
}
/**
* 获取JVM进程ID
*
* @return 如果获取失败，则返回NULL
**/
public static Integer jvmPid() {
try {
RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
Field jvm = runtime.getClass().getDeclaredField("jvm");
jvm.setAccessible(true);
VMManagement mgmt = (VMManagement) jvm.get(runtime);
Method pidMethod = mgmt.getClass().getDeclaredMethod("getProcessId");
pidMethod.setAccessible(true);
return (Integer) pidMethod.invoke(mgmt);
} catch (Exception var4) {
}
return null;
}
}