diff --git a/webmagic-avalon/webmagic-avalon-common/src/main/java/us/codecraft/webmagic/exception/DynamicClassCompileException.java b/webmagic-avalon/webmagic-avalon-common/src/main/java/us/codecraft/webmagic/exception/DynamicClassCompileException.java
new file mode 100644
index 0000000..8512ae5
--- /dev/null
+++ b/webmagic-avalon/webmagic-avalon-common/src/main/java/us/codecraft/webmagic/exception/DynamicClassCompileException.java
@@ -0,0 +1,15 @@
+package us.codecraft.webmagic.exception;
+
+/**
+ * @author code4crafter@gmail.com
+ */
+public class DynamicClassCompileException extends Exception{
+
+    public DynamicClassCompileException(String message) {
+        super(message);
+    }
+
+    public DynamicClassCompileException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}
diff --git a/webmagic-avalon/webmagic-avalon-common/src/main/java/us/codecraft/webmagic/service/DynamicClassService.java b/webmagic-avalon/webmagic-avalon-common/src/main/java/us/codecraft/webmagic/service/DynamicClassService.java
index 389ab01..1cd719c 100644
--- a/webmagic-avalon/webmagic-avalon-common/src/main/java/us/codecraft/webmagic/service/DynamicClassService.java
+++ b/webmagic-avalon/webmagic-avalon-common/src/main/java/us/codecraft/webmagic/service/DynamicClassService.java
@@ -1,10 +1,12 @@
 package us.codecraft.webmagic.service;
 
+import us.codecraft.webmagic.exception.DynamicClassCompileException;
+
 /**
  * @author code4crafter@gmail.com
  */
 public interface DynamicClassService {
 
-    public String compileAndSave(String sourceCode);
+    public Class compileAndSave(String sourceCode) throws DynamicClassCompileException;
 
 }
diff --git a/webmagic-avalon/webmagic-avalon-common/src/main/java/us/codecraft/webmagic/service/impl/DynamicClassServiceImpl.java b/webmagic-avalon/webmagic-avalon-common/src/main/java/us/codecraft/webmagic/service/impl/DynamicClassServiceImpl.java
index c063a50..ec83efd 100644
--- a/webmagic-avalon/webmagic-avalon-common/src/main/java/us/codecraft/webmagic/service/impl/DynamicClassServiceImpl.java
+++ b/webmagic-avalon/webmagic-avalon-common/src/main/java/us/codecraft/webmagic/service/impl/DynamicClassServiceImpl.java
@@ -1,10 +1,12 @@
 package us.codecraft.webmagic.service.impl;
 
+import org.codehaus.groovy.control.CompilationFailedException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import us.codecraft.forger.Forger;
 import us.codecraft.forger.ForgerFactory;
 import us.codecraft.webmagic.dao.DynamicClassDao;
+import us.codecraft.webmagic.exception.DynamicClassCompileException;
 import us.codecraft.webmagic.model.DynamicClass;
 import us.codecraft.webmagic.service.DynamicClassService;
 
@@ -21,14 +23,19 @@ public class DynamicClassServiceImpl implements DynamicClassService {
     private ForgerFactory forgerFactory;
 
     @Override
-    public String compileAndSave(String sourceCode) {
-        Forger<Object> forger = forgerFactory.compile(sourceCode);
+    public Class compileAndSave(String sourceCode) throws DynamicClassCompileException {
+        Forger<Object> forger;
+        try {
+            forger = forgerFactory.compile(sourceCode);
+        } catch (CompilationFailedException e) {
+            throw new DynamicClassCompileException(e.getMessage(),e);
+        }
         String className = forger.getClazz().getCanonicalName();
         DynamicClass dynamicClass = new DynamicClass();
         dynamicClass.setClassName(className);
         dynamicClass.setSourceCode(sourceCode);
         dynamicClassDao.add(dynamicClass);
-        return className;
+        return forger.getClazz();
     }
 
 }
diff --git a/webmagic-avalon/webmagic-avalon-common/src/test/java/us/codecraft/webmagic/service/DynamicClassServiceImplTest.java b/webmagic-avalon/webmagic-avalon-common/src/test/java/us/codecraft/webmagic/service/DynamicClassServiceImplTest.java
index 108de62..185252b 100644
--- a/webmagic-avalon/webmagic-avalon-common/src/test/java/us/codecraft/webmagic/service/DynamicClassServiceImplTest.java
+++ b/webmagic-avalon/webmagic-avalon-common/src/test/java/us/codecraft/webmagic/service/DynamicClassServiceImplTest.java
@@ -13,9 +13,11 @@ import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import us.codecraft.forger.ForgerFactory;
 import us.codecraft.webmagic.Foo;
 import us.codecraft.webmagic.dao.DynamicClassDao;
+import us.codecraft.webmagic.exception.DynamicClassCompileException;
 import us.codecraft.webmagic.service.impl.DynamicClassServiceImpl;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.failBecauseExceptionWasNotThrown;
 
 /**
  * @author code4crafter@gmail.com
@@ -25,7 +27,7 @@ import static org.assertj.core.api.Assertions.assertThat;
 public class DynamicClassServiceImplTest {
 
     @Before
-    public void setUp(){
+    public void setUp() {
         MockitoAnnotations.initMocks(this);
     }
 
@@ -41,7 +43,16 @@ public class DynamicClassServiceImplTest {
 
     @Test
     public void testCompileAndSave() throws Exception {
-        String className = dynamicClassService.compileAndSave(Foo.SOURCE_CODE);
-        assertThat(className).isEqualTo("us.codecraft.webmagic.Foo");
+        Class aClass = dynamicClassService.compileAndSave(Foo.SOURCE_CODE);
+        assertThat(aClass.getCanonicalName()).isEqualTo("us.codecraft.webmagic.Foo");
+    }
+
+    @Test
+    public void testCompileFail() {
+        try {
+            dynamicClassService.compileAndSave("class s((");
+            failBecauseExceptionWasNotThrown(DynamicClassCompileException.class);
+        } catch (DynamicClassCompileException e) {
+        }
     }
 }