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src/main/java/com/yj/earth/common/util/ServerUniqueIdUtil.java

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+package com.yj.earth.common.util;
+
+import lombok.extern.slf4j.Slf4j;
+import oshi.SystemInfo;
+import oshi.hardware.*;
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.List;
+import java.util.HexFormat;
+
+/**
+ * 服务器唯一标识工具类
+ * 基于CPU、主板、磁盘、网卡硬件信息生成唯一标识、不更换核心硬件则标识不变
+ */
+@Slf4j
+public class ServerUniqueIdUtil {
+
+    /**
+     * 获取服务器唯一标识
+     */
+    public static String getServerUniqueId() {
+        // 初始化系统信息（oshi核心入口）
+        SystemInfo systemInfo = new SystemInfo();
+        HardwareAbstractionLayer hardware = systemInfo.getHardware();
+
+        try {
+            // 收集稳定的核心硬件信息
+            StringBuilder hardwareRawInfo = new StringBuilder();
+
+            // CPU唯一标识
+            CentralProcessor cpu = hardware.getProcessor();
+            String cpuId = cpu.getProcessorIdentifier().getProcessorID();
+            if (cpuId != null && !cpuId.trim().isEmpty()) {
+                hardwareRawInfo.append(cpuId).append("|");
+            }
+
+            // 主板UUID
+            ComputerSystem mainBoard = hardware.getComputerSystem();
+            String boardUuid = mainBoard.getHardwareUUID();
+            if (boardUuid != null && !boardUuid.trim().isEmpty()) {
+                hardwareRawInfo.append(boardUuid).append("|");
+            }
+
+            // 第一个物理磁盘序列号
+            List<HWDiskStore> disks = hardware.getDiskStores();
+            for (HWDiskStore disk : disks) {
+                // 过滤虚拟磁盘（
+                if (!disk.getModel().toLowerCase().contains("virtual") && disk.getSize() > 0) {
+                    String diskSerial = disk.getSerial();
+                    if (diskSerial != null && !diskSerial.trim().isEmpty()) {
+                        hardwareRawInfo.append(diskSerial).append("|");
+                        break;
+                    }
+                }
+            }
+
+            // 第一个物理网卡MAC地址
+            List<NetworkIF> netCards = hardware.getNetworkIFs();
+            for (NetworkIF netCard : netCards) {
+                String mac = netCard.getMacaddr();
+                // 过滤条件非空、非全零MAC、非回环网卡
+                if (mac != null && !mac.trim().isEmpty() && !mac.startsWith("00:00:00:00:00:00")) {
+                    hardwareRawInfo.append(mac).append("|");
+                    break;
+                }
+            }
+
+            // MD5哈希
+            MessageDigest md = MessageDigest.getInstance("MD5");
+            byte[] hashBytes = md.digest(hardwareRawInfo.toString().getBytes());
+
+            // 字节数组转十六进制字符串
+            return HexFormat.of().formatHex(hashBytes).toUpperCase();
+
+        } catch (Exception e) {
+            return "unknown";
+        }
+    }
+}