修改获取pid的jdk版本

ruoshui-core/pom.xml

@@ -12,8 +12,8 @@
     <artifactId>ruoshui-core</artifactId>
 
     <properties>
-        <maven.compiler.source>8</maven.compiler.source>
-        <maven.compiler.target>8</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
     </properties>
 
     <dependencies>
@@ -134,11 +134,11 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.8.1</version>
                 <configuration>
-                    <source>${java.version}</source>
-                    <target>${java.version}</target>
+                    <source>9</source>
+                    <target>9</target>
                 </configuration>
             </plugin>
         </plugins>
     </build>
 
-</project>
\ No newline at end of file
+</project>

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

@@ -10,6 +10,8 @@ import org.slf4j.LoggerFactory;
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
+import java.lang.management.ManagementFactory;
+import java.lang.management.RuntimeMXBean;
 import java.lang.reflect.Field;
 import java.nio.charset.StandardCharsets;
 
@@ -38,10 +40,27 @@ 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
+                if (process.getClass().getName().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);
+                    } catch (Exception e) {
+                        throw new RuntimeException("获取进程ID失败", e);
+                    }
+                } else if (process instanceof ProcessHandle) {
+                    // Java 9+ 推荐方式：ProcessHandle API
+                         pid = ((ProcessHandle) process).pid();
+                } else {
+                    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);
             }