diff --git a/muyu-rule-common/src/main/java/rule/util/ExternalClassLoader.java b/muyu-rule-common/src/main/java/rule/util/ExternalClassLoader.java
new file mode 100644
index 0000000..40851c9
--- /dev/null
+++ b/muyu-rule-common/src/main/java/rule/util/ExternalClassLoader.java
@@ -0,0 +1,23 @@
+package rule.util;
+
+import java.io.IOException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+public class ExternalClassLoader extends URLClassLoader {
+
+    public ExternalClassLoader(URL[] urls) {
+        super(urls, Thread.currentThread().getContextClassLoader());
+    }
+
+    public Class<?> defineClassFromBytes(byte[] classBytes, String className) throws IOException {
+        return super.defineClass(className, classBytes, 0, classBytes.length);
+    }
+
+    public Class<?> loadClassFromPath(Path classFilePath, String className) throws IOException {
+        byte[] classData = Files.readAllBytes(classFilePath);
+        return defineClassFromBytes(classData, className);
+    }
+}