fix(ProcessUtil): 修复Linux/AIX环境进程ID获取逻辑

ruoshui-core/src/main/java/com/ruoshui/core/util/ProcessUtil.java

@@ -40,31 +40,55 @@ public class ProcessUtil {
             }
         } else if (Platform.isLinux() || Platform.isAIX()) {
             try {
-//                Class<?> clazz = Class.forName("java.lang.UNIXProcess");
-//                field = clazz.getDeclaredField("pid");
-//                field.setAccessible(true);
-//                pid = (Integer) field.get(process);
+                // Class<?> clazz = Class.forName("java.lang.UNIXProcess");
+                // field = clazz.getDeclaredField("pid");
+                // field.setAccessible(true);
+                // pid = (Integer) field.get(process);
                 // 服务器上的jdk版本大于8 ，不兼容当前的模式
                 String processName = process.getClass().getName();
                 logger.info("processName: {}", processName);
+                
                 if (processName.equals("java.lang.UNIXProcess")) {
                     try {
                         // 仅Java 8兼容：保留原逻辑（可选）
                         Field pidField = process.getClass().getDeclaredField("pid");
                         pidField.setAccessible(true);
-                         pid = pidField.getLong(process);
+                        pid = pidField.getLong(process);
                     } catch (Exception e) {
+                        logger.error("jdk8-erro-get process id for unix error {0}", e);
                         throw new RuntimeException("获取进程ID失败", e);
                     }
                 } else if (process instanceof ProcessHandle) {
+                     logger.error("java9+process instanceof ProcessHandle ");
                     // Java 9+ 推荐方式：ProcessHandle API
-                         pid = ((ProcessHandle) process).pid();
+                    pid = ((ProcessHandle) process).pid();
                 } else {
-                    throw new UnsupportedOperationException("不支持当前JDK的进程ID获取");
+
+                    logger.error("jdk8 换方法执行");
+                    Class<?> clazz = Class.forName("java.lang.UNIXProcess");
+                    Field declaredField = clazz.getDeclaredField("pid");
+                    declaredField.setAccessible(true);
+                    pid = declaredField.getInt(process);
+                    // throw new UnsupportedOperationException("不支持当前JDK的进程ID获取");
                 }
 
+            } catch (NoSuchMethodError e) {
+                // 降级走 JDK 8 反射逻辑
+                try {
+                    Class<?> clazz = Class.forName("java.lang.UNIXProcess");
+                    Field declaredField = clazz.getDeclaredField("pid");
+                    declaredField.setAccessible(true);
+                    pid = declaredField.getInt(process);
+                } catch (Exception ex) {
+                    // 最终容错，返回-1不中断任务
+                    pid = -1;
+                    logger.error("get process id for unix error {0}", e);
+                    // throw new UnsupportedOperationException("不支持当前JDK的进程ID获取");
+
+                }
             } catch (Throwable e) {
-                logger.error("get process id for unix error {0}", e);
+                logger.error("get process id for unix error ", e);
+                throw new UnsupportedOperationException("不支持当前JDK的进程ID获取");
             }
         }
         return String.valueOf(pid);
@@ -89,7 +113,7 @@ public class ProcessUtil {
             command = "kill " + pid;
         }
         try {
-            //杀掉进程
+            // 杀掉进程
             process = Runtime.getRuntime().exec(command);
             reader = new BufferedReader(new InputStreamReader(process.getInputStream(), StandardCharsets.UTF_8));
             String line;