diff --git a/spring-cloud-alibaba-dependencies/pom.xml b/spring-cloud-alibaba-dependencies/pom.xml
index bb54b3dd..44cfafdf 100644
--- a/spring-cloud-alibaba-dependencies/pom.xml
+++ b/spring-cloud-alibaba-dependencies/pom.xml
@@ -305,6 +305,11 @@
                 <artifactId>spring-cloud-stream-binder-rocketmq</artifactId>
                 <version>${project.version}</version>
             </dependency>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-alibaba-dubbo</artifactId>
+                <version>${project.version}</version>
+            </dependency>
 
             <!-- Own dependencies - Starters -->
             <dependency>
diff --git a/spring-cloud-alibaba-examples/env-extension/pom.xml b/spring-cloud-alibaba-examples/env-extension/pom.xml
deleted file mode 100644
index e84e953a..00000000
--- a/spring-cloud-alibaba-examples/env-extension/pom.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
-
-    <parent>
-        <groupId>org.springframework.boot</groupId>
-        <artifactId>spring-boot-starter-parent</artifactId>
-        <version>2.0.6.RELEASE</version>
-        <relativePath/> <!-- lookup parent from repository -->
-    </parent>
-
-    <modelVersion>4.0.0</modelVersion>
-
-    <groupId>alibaba.com</groupId>
-    <artifactId>env-extension</artifactId>
-    <version>0.2.2.BUILD-SNAPSHOT</version>
-    <packaging>jar</packaging>
-
-    <name>env-extension</name>
-    <description>Demo project for Spring Boot</description>
-
-    <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <java.version>1.8</java.version>
-    </properties>
-
-    <dependencies>
-        <!--Spring Boot -->
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
-            <scope>provided</scope>
-        </dependency>
-    </dependencies>
-
-</project>
diff --git a/spring-cloud-alibaba-examples/env-extension/src/main/java/org/springframework/alicloud/env/extension/ImportExtraConfig.java b/spring-cloud-alibaba-examples/env-extension/src/main/java/org/springframework/alicloud/env/extension/ImportExtraConfig.java
deleted file mode 100644
index 1585c4a9..00000000
--- a/spring-cloud-alibaba-examples/env-extension/src/main/java/org/springframework/alicloud/env/extension/ImportExtraConfig.java
+++ /dev/null
@@ -1,16 +0,0 @@
-package org.springframework.alicloud.env.extension;
-
-
-import java.lang.annotation.Documented;
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
-
-@Target(ElementType.TYPE)
-@Retention(RetentionPolicy.RUNTIME)
-@Documented
-public @interface ImportExtraConfig {
-
-    String[] name() default "";
-}
diff --git a/spring-cloud-alibaba-examples/env-extension/src/main/java/org/springframework/alicloud/env/extension/LoadExtraConfigApplicationListener.java b/spring-cloud-alibaba-examples/env-extension/src/main/java/org/springframework/alicloud/env/extension/LoadExtraConfigApplicationListener.java
deleted file mode 100644
index 747ca68a..00000000
--- a/spring-cloud-alibaba-examples/env-extension/src/main/java/org/springframework/alicloud/env/extension/LoadExtraConfigApplicationListener.java
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (C) 2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.alicloud.env.extension;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.context.event.ApplicationEnvironmentPreparedEvent;
-import org.springframework.context.ApplicationListener;
-import org.springframework.core.env.PropertiesPropertySource;
-
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.util.Properties;
-
-/**
- * @author pbting
- * @date 2019-01-09 9:00 PM
- */
-public class LoadExtraConfigApplicationListener implements ApplicationListener<ApplicationEnvironmentPreparedEvent> {
-
-    @Override
-    public void onApplicationEvent(ApplicationEnvironmentPreparedEvent event) {
-        SpringApplication springApplication = event.getSpringApplication();
-        Class clazz = springApplication.getMainApplicationClass();
-        if (!clazz.isAnnotationPresent(ImportExtraConfig.class)) {
-            return;
-        }
-        ImportExtraConfig annotation = (ImportExtraConfig) clazz
-                .getAnnotation(ImportExtraConfig.class);
-
-        String[] extraConfig = annotation.name();
-
-        if (extraConfig == null || extraConfig.length == 0) {
-            return;
-        }
-
-        for (String config : extraConfig) {
-            try {
-                Properties properties = new Properties();
-                properties.load(new FileInputStream(config));
-                event.getEnvironment().getPropertySources()
-                        .addFirst(new PropertiesPropertySource(config, properties));
-            }
-            catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/spring-cloud-alibaba-examples/env-extension/src/main/resources/META-INF/spring.factories b/spring-cloud-alibaba-examples/env-extension/src/main/resources/META-INF/spring.factories
deleted file mode 100644
index d264a372..00000000
--- a/spring-cloud-alibaba-examples/env-extension/src/main/resources/META-INF/spring.factories
+++ /dev/null
@@ -1,2 +0,0 @@
-org.springframework.context.ApplicationListener=\
-  org.springframework.alicloud.env.extension.LoadExtraConfigApplicationListener
\ No newline at end of file
diff --git a/spring-cloud-alibaba-examples/pom.xml b/spring-cloud-alibaba-examples/pom.xml
index b4a0ae8c..b1400d44 100644
--- a/spring-cloud-alibaba-examples/pom.xml
+++ b/spring-cloud-alibaba-examples/pom.xml
@@ -24,7 +24,6 @@
         <module>nacos-example/nacos-discovery-example</module>
         <module>nacos-example/nacos-config-example</module>
         <module>nacos-example/nacos-gateway-example</module>
-        <module>env-extension</module>
         <module>oss-example</module>
         <module>ans-example/ans-consumer-feign-example</module>
         <module>ans-example/ans-consumer-ribbon-example</module>