diff --git a/servo/src/main/java/com/yvan/workbench/controller/JsDemo.java b/servo/src/main/java/com/yvan/workbench/controller/JsDemo.java
index e6285e7..4629874 100644
--- a/servo/src/main/java/com/yvan/workbench/controller/JsDemo.java
+++ b/servo/src/main/java/com/yvan/workbench/controller/JsDemo.java
@@ -1,5 +1,6 @@
 package com.yvan.workbench.controller;
 
+import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.pool2.impl.GenericObjectPoolConfig;
 import org.clever.core.AppShutdownHook;
 import org.clever.core.Conv;
@@ -18,6 +19,7 @@ import java.io.File;
 import java.time.Duration;
 import java.util.Map;
 
+@Slf4j
 public class JsDemo {
     private static final GenericEngineInstancePool<Context, Value> pool;
 
@@ -31,6 +33,7 @@ public class JsDemo {
         config.setMinIdle(2);
         // 创建对象工厂
         GraalSingleEngineFactory factory = GraalSingleEngineFactory.create(rootFolder);
+        factory.getBuilder().registerGlobalVar("log", log);
         // 创建对象池
         pool = new GenericEngineInstancePool<>(factory, config);
         AppShutdownHook.addShutdownHook(() -> {