多网卡ip探测增加网卡创建时间字段上报

src/main/java/com/tongran/agent/client/core/vo/NetworkInterfaceInfo.java

@@ -27,6 +27,8 @@ public class NetworkInterfaceInfo {
     String status;        // 与外网连通状态
     // 如果是子接口，存储父接口名称
     private String parentInterface;
+    /** 网卡创建时间 */
+    private Long netCreateTime;
 
     // 如果是父接口，存储子接口列表
     private List<NetworkInterfaceInfo> subInterfaces;

src/main/java/com/tongran/agent/client/utils/NetworkInterfaceUtil.java

@@ -142,7 +142,6 @@ public class NetworkInterfaceUtil {
                     }
                 }
             }
-
             // 创建网卡信息对象
             NetworkInterfaceInfo info = NetworkInterfaceInfo.builder()
                     .name(name)
@@ -187,6 +186,9 @@ public class NetworkInterfaceUtil {
                     }
                     if(info.getIpv4() != null){
                         info.setStatus(getmacVlanStatus(info.getName())?"1":"0");
+                        // 获取网卡创建时间戳
+                        long createTime = getInterfaceCreateTime(name);
+                        info.setNetCreateTime(createTime);
                     }
                     parent.getSubInterfaces().add(info);
                     AssertLog.info("  添加到父接口 {} 的子接口列表", parentName);
@@ -220,6 +222,9 @@ public class NetworkInterfaceUtil {
                 }
                 if(child.getIpv4() != null){
                     child.setStatus(getmacVlanStatus(child.getName())?"1":"0");
+                    // 获取网卡创建时间戳
+                    long createTime = getInterfaceCreateTime(child.getName());
+                    child.setNetCreateTime(createTime);
                 }
                 parent.getSubInterfaces().add(child);
                 AssertLog.info("子接口 {} 关联到父接口 {}", child.getName(), parentName);
@@ -446,6 +451,32 @@ public class NetworkInterfaceUtil {
             return false; // 保守处理
         }
     }
+    /**
+     * 获取网卡创建时间戳（单位：秒）
+     * 通过 stat 命令获取 /sys/class/net/<interface>/ 目录的创建时间
+     * 返回Unix时间戳，失败返回-1
+     */
+    public static long getInterfaceCreateTime(String interfaceName) {
+        try {
+            ProcessBuilder pb = new ProcessBuilder("stat", "-c", "%Y", "/sys/class/net/" + interfaceName);
+            Process process = pb.start();
+
+            BufferedReader reader = new BufferedReader(
+                    new InputStreamReader(process.getInputStream()));
+            String output = reader.readLine();
+            reader.close();
+
+            int exitCode = process.waitFor();
+
+            if (exitCode == 0 && output != null && !output.trim().isEmpty()) {
+                return Long.parseLong(output.trim());
+            }
+            return -1;
+        } catch (Exception e) {
+            AssertLog.error("获取网卡 {} 创建时间失败: {}", interfaceName, e.getMessage());
+            return -1;
+        }
+    }
 
     /**
      * 内部类：网卡详情