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The following commit(s) were added to refs/heads/master by this push:
     new 81486f76 Feature/split rpccontext (#700)
81486f76 is described below

commit 81486f76693c214c26075438e490b0182492771f
Author: aamingaa <49740762+aamin...@users.noreply.github.com>
AuthorDate: Tue Jan 17 14:26:33 2023 +0800

    Feature/split rpccontext (#700)
    
    * feat: split rpccontext test
    
    * feat: split rpccontext test
    
    * feat: split rpccontext test
    
    * feat: split rpccontext test
    
    * feat: remove parent label
    
    * feat: adjust pom.xml
    
    * feat: remove duplicate version
---
 2-advanced/dubbo-samples-rpccontext/README.md      |   2 +
 .../case-configuration.yml                         |  65 ++++++
 .../dubbo-samples-rpccontext/case-versions.conf    |  24 ++
 2-advanced/dubbo-samples-rpccontext/pom.xml        | 128 +++++++++++
 .../samples/rpccontext/EmbeddedZooKeeper.java      | 255 +++++++++++++++++++++
 .../samples/rpccontext/RpcContextConsumer.java     |  33 +++
 .../samples/rpccontext/RpcContextProvider1.java    |  34 +++
 .../samples/rpccontext/RpcContextProvider2.java    |  34 +++
 .../samples/rpccontext/api/RpcContextService1.java |  28 +++
 .../samples/rpccontext/api/RpcContextService2.java |  28 +++
 .../dubbo/samples/rpccontext/dto/Service1DTO.java  |  53 +++++
 .../dubbo/samples/rpccontext/dto/Service2DTO.java  |  43 ++++
 .../impl/PenetrateAttachmentSelectorImpl1.java     |  39 ++++
 .../samples/rpccontext/impl/RpcContextImpl1.java   |  58 +++++
 .../samples/rpccontext/impl/RpcContextImpl2.java   |  43 ++++
 .../samples/rpccontext/utils/RpcContextUtils.java  |  34 +++
 ...rg.apache.dubbo.rpc.PenetrateAttachmentSelector |   1 +
 .../src/main/resources/log4j.properties            |  26 +++
 .../resources/spring/dubbo-rpccontext-consumer.xml |  35 +++
 .../spring/dubbo-rpccontext-provider1.xml          |  38 +++
 .../spring/dubbo-rpccontext-provider2.xml          |  36 +++
 .../samples/rpccontext/RpcContextServiceIT.java    |  64 ++++++
 2-advanced/pom.xml                                 |   1 +
 23 files changed, 1102 insertions(+)

diff --git a/2-advanced/dubbo-samples-rpccontext/README.md 
b/2-advanced/dubbo-samples-rpccontext/README.md
new file mode 100644
index 00000000..98200fd7
--- /dev/null
+++ b/2-advanced/dubbo-samples-rpccontext/README.md
@@ -0,0 +1,2 @@
+## 隐式参数
+可以通过 PenetrateAttachmentSelector 接口和 PenetrateAttachmentSelector 接口 控制rpc 
context服务消费方和提供方之间参数的隐式传递的层数。
\ No newline at end of file
diff --git a/2-advanced/dubbo-samples-rpccontext/case-configuration.yml 
b/2-advanced/dubbo-samples-rpccontext/case-configuration.yml
new file mode 100644
index 00000000..eb8d1385
--- /dev/null
+++ b/2-advanced/dubbo-samples-rpccontext/case-configuration.yml
@@ -0,0 +1,65 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+
+services:
+  zookeeper:
+    image: zookeeper:latest
+
+  dubbo-samples-rpccontext-provider2:
+    type: app
+    basedir: .
+    mainClass: org.apache.dubbo.samples.rpccontext.RpcContextProvider2
+    systemProps:
+      - zookeeper.address=zookeeper
+    waitPortsBeforeRun:
+      - zookeeper:2181
+    checkPorts:
+      - 20882
+    checkLog: "Rpc context provider2 started"
+    depends_on:
+      - zookeeper
+
+
+  dubbo-samples-rpccontext-provider:
+    type: app
+    basedir: .
+    mainClass: org.apache.dubbo.samples.rpccontext.RpcContextProvider1
+    systemProps:
+      - zookeeper.address=zookeeper
+    waitPortsBeforeRun:
+      - zookeeper:2181
+    checkPorts:
+      - 20880
+    checkLog: "Rpc context provider1 started"
+    depends_on:
+      - zookeeper
+      - dubbo-samples-rpccontext-provider2
+
+  dubbo-samples-rpccontext-consumer:
+    type: test
+    basedir: .
+    tests:
+      - "**/*IT.class"
+    systemProps:
+      - zookeeper.address=zookeeper
+    waitPortsBeforeRun:
+      - zookeeper:2181
+      - dubbo-samples-rpccontext-provider:20880
+      - dubbo-samples-rpccontext-provider2:20882
+    depends_on:
+      - zookeeper
+      - dubbo-samples-rpccontext-provider
+      - dubbo-samples-rpccontext-provider2
\ No newline at end of file
diff --git a/2-advanced/dubbo-samples-rpccontext/case-versions.conf 
b/2-advanced/dubbo-samples-rpccontext/case-versions.conf
new file mode 100644
index 00000000..a226141f
--- /dev/null
+++ b/2-advanced/dubbo-samples-rpccontext/case-versions.conf
@@ -0,0 +1,24 @@
+#
+#
+#   Licensed to the Apache Software Foundation (ASF) under one or more
+#   contributor license agreements.  See the NOTICE file distributed with
+#   this work for additional information regarding copyright ownership.
+#   The ASF licenses this file to You 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.
+#
+
+
+# Supported component versions of the test case
+
+# Spring app
+dubbo.version= [ >= 3.2.0 ]
+spring.version=4.*, 5.*
diff --git a/2-advanced/dubbo-samples-rpccontext/pom.xml 
b/2-advanced/dubbo-samples-rpccontext/pom.xml
new file mode 100644
index 00000000..70203140
--- /dev/null
+++ b/2-advanced/dubbo-samples-rpccontext/pom.xml
@@ -0,0 +1,128 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You 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.
+  -->
+<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 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+    <groupId>org.apache.dubbo</groupId>
+    <version>1.0-SNAPSHOT</version>
+
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>dubbo-samples-rpccontext</artifactId>
+    <name>Dubbo Samples Context</name>
+    <description>Dubbo Samples Context</description>
+
+    <properties>
+        <source.level>1.8</source.level>
+        <target.level>1.8</target.level>
+        <dubbo.version>3.2.0-beta.2</dubbo.version>
+        <spring.version>4.3.29.RELEASE</spring.version>
+        <junit.version>4.13.1</junit.version>
+        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
+    </properties>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework</groupId>
+                <artifactId>spring-framework-bom</artifactId>
+                <version>${spring.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.apache.dubbo</groupId>
+                <artifactId>dubbo-bom</artifactId>
+                <version>${dubbo.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.apache.dubbo</groupId>
+                <artifactId>dubbo-dependencies-zookeeper</artifactId>
+                <version>${dubbo.version}</version>
+                <type>pom</type>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-dependencies-zookeeper</artifactId>
+            <type>pom</type>
+        </dependency>
+
+
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+    </dependencies>
+
+    <profiles>
+        <!-- For jdk 11 above JavaEE annotation -->
+        <profile>
+            <id>javax.annotation</id>
+            <activation>
+                <jdk>[1.11,)</jdk>
+            </activation>
+            <dependencies>
+                <dependency>
+                    <groupId>javax.annotation</groupId>
+                    <artifactId>javax.annotation-api</artifactId>
+                    <version>1.3.2</version>
+                </dependency>
+            </dependencies>
+        </profile>
+    </profiles>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>${source.level}</source>
+                    <target>${target.level}</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/EmbeddedZooKeeper.java
 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/EmbeddedZooKeeper.java
new file mode 100644
index 00000000..91e4a650
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/EmbeddedZooKeeper.java
@@ -0,0 +1,255 @@
+/*
+ * Copyright 2014 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.apache.dubbo.samples.rpccontext;
+
+import org.apache.zookeeper.server.ServerConfig;
+import org.apache.zookeeper.server.ZooKeeperServerMain;
+import org.apache.zookeeper.server.quorum.QuorumPeerConfig;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.context.SmartLifecycle;
+import org.springframework.util.ErrorHandler;
+import org.springframework.util.SocketUtils;
+
+import java.io.File;
+import java.lang.reflect.Method;
+import java.util.Properties;
+import java.util.UUID;
+
+/**
+ * from: 
https://github.com/spring-projects/spring-xd/blob/v1.3.1.RELEASE/spring-xd-dirt/src/main/java/org/springframework/xd/dirt/zookeeper/ZooKeeperUtils.java
+ *
+ * Helper class to start an embedded instance of standalone (non clustered) 
ZooKeeper.
+ *
+ * NOTE: at least an external standalone server (if not an ensemble) are 
recommended, even for
+ * {@link org.springframework.xd.dirt.server.singlenode.SingleNodeApplication}
+ *
+ * @author Patrick Peralta
+ * @author Mark Fisher
+ * @author David Turanski
+ */
+public class EmbeddedZooKeeper implements SmartLifecycle {
+
+    /**
+     * Logger.
+     */
+    private static final Logger logger = 
LoggerFactory.getLogger(EmbeddedZooKeeper.class);
+
+    /**
+     * ZooKeeper client port. This will be determined dynamically upon startup.
+     */
+    private final int clientPort;
+
+    /**
+     * Whether to auto-start. Default is true.
+     */
+    private boolean autoStartup = true;
+
+    /**
+     * Lifecycle phase. Default is 0.
+     */
+    private int phase = 0;
+
+    /**
+     * Thread for running the ZooKeeper server.
+     */
+    private volatile Thread zkServerThread;
+
+    /**
+     * ZooKeeper server.
+     */
+    private volatile ZooKeeperServerMain zkServer;
+
+    /**
+     * {@link ErrorHandler} to be invoked if an Exception is thrown from the 
ZooKeeper server thread.
+     */
+    private ErrorHandler errorHandler;
+
+    private boolean daemon = true;
+
+    /**
+     * Construct an EmbeddedZooKeeper with a random port.
+     */
+    public EmbeddedZooKeeper() {
+        clientPort = SocketUtils.findAvailableTcpPort();
+    }
+
+    /**
+     * Construct an EmbeddedZooKeeper with the provided port.
+     *
+     * @param clientPort  port for ZooKeeper server to bind to
+     */
+    public EmbeddedZooKeeper(int clientPort, boolean daemon) {
+        this.clientPort = clientPort;
+        this.daemon = daemon;
+    }
+
+    /**
+     * Returns the port that clients should use to connect to this embedded 
server.
+     *
+     * @return dynamically determined client port
+     */
+    public int getClientPort() {
+        return this.clientPort;
+    }
+
+    /**
+     * Specify whether to start automatically. Default is true.
+     *
+     * @param autoStartup whether to start automatically
+     */
+    public void setAutoStartup(boolean autoStartup) {
+        this.autoStartup = autoStartup;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean isAutoStartup() {
+        return this.autoStartup;
+    }
+
+    /**
+     * Specify the lifecycle phase for the embedded server.
+     *
+     * @param phase the lifecycle phase
+     */
+    public void setPhase(int phase) {
+        this.phase = phase;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public int getPhase() {
+        return this.phase;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean isRunning() {
+        return (zkServerThread != null);
+    }
+
+    /**
+     * Start the ZooKeeper server in a background thread.
+     * <p>
+     * Register an error handler via {@link #setErrorHandler} in order to 
handle
+     * any exceptions thrown during startup or execution.
+     */
+    @Override
+    public synchronized void start() {
+        if (zkServerThread == null) {
+            zkServerThread = new Thread(new ServerRunnable(), "ZooKeeper 
Server Starter");
+            zkServerThread.setDaemon(daemon);
+            zkServerThread.start();
+        }
+    }
+
+    /**
+     * Shutdown the ZooKeeper server.
+     */
+    @Override
+    public synchronized void stop() {
+        if (zkServerThread != null) {
+            // The shutdown method is protected...thus this hack to invoke it.
+            // This will log an exception on shutdown; see
+            // https://issues.apache.org/jira/browse/ZOOKEEPER-1873 for 
details.
+            try {
+                Method shutdown = 
ZooKeeperServerMain.class.getDeclaredMethod("shutdown");
+                shutdown.setAccessible(true);
+                shutdown.invoke(zkServer);
+            }
+
+            catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+
+            // It is expected that the thread will exit after
+            // the server is shutdown; this will block until
+            // the shutdown is complete.
+            try {
+                zkServerThread.join(5000);
+                zkServerThread = null;
+            }
+            catch (InterruptedException e) {
+                Thread.currentThread().interrupt();
+                logger.warn("Interrupted while waiting for embedded ZooKeeper 
to exit");
+                // abandoning zk thread
+                zkServerThread = null;
+            }
+        }
+    }
+
+    /**
+     * Stop the server if running and invoke the callback when complete.
+     */
+    @Override
+    public void stop(Runnable callback) {
+        stop();
+        callback.run();
+    }
+
+    /**
+     * Provide an {@link ErrorHandler} to be invoked if an Exception is thrown 
from the ZooKeeper server thread. If none
+     * is provided, only error-level logging will occur.
+     *
+     * @param errorHandler the {@link ErrorHandler} to be invoked
+     */
+    public void setErrorHandler(ErrorHandler errorHandler) {
+        this.errorHandler = errorHandler;
+    }
+
+    /**
+     * Runnable implementation that starts the ZooKeeper server.
+     */
+    private class ServerRunnable implements Runnable {
+
+        @Override
+        public void run() {
+            try {
+                Properties properties = new Properties();
+                File file = new File(System.getProperty("java.io.tmpdir")
+                        + File.separator + UUID.randomUUID());
+                file.deleteOnExit();
+                properties.setProperty("dataDir", file.getAbsolutePath());
+                properties.setProperty("clientPort", 
String.valueOf(clientPort));
+
+                QuorumPeerConfig quorumPeerConfig = new QuorumPeerConfig();
+                quorumPeerConfig.parseProperties(properties);
+
+                zkServer = new ZooKeeperServerMain();
+                ServerConfig configuration = new ServerConfig();
+                configuration.readFrom(quorumPeerConfig);
+
+                zkServer.runFromConfig(configuration);
+            }
+            catch (Exception e) {
+                if (errorHandler != null) {
+                    errorHandler.handleError(e);
+                }
+                else {
+                    logger.error("Exception running embedded ZooKeeper", e);
+                }
+            }
+        }
+    }
+
+}
\ No newline at end of file
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/RpcContextConsumer.java
 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/RpcContextConsumer.java
new file mode 100644
index 00000000..e792e1d6
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/RpcContextConsumer.java
@@ -0,0 +1,33 @@
+/*
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements.  See the NOTICE file distributed with
+ *   this work for additional information regarding copyright ownership.
+ *   The ASF licenses this file to You 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.apache.dubbo.samples.rpccontext;
+
+import org.apache.dubbo.samples.rpccontext.api.RpcContextService1;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+
+public class RpcContextConsumer {
+    public static void main(String[] args) {
+        ClassPathXmlApplicationContext context = new 
ClassPathXmlApplicationContext("spring/dubbo-rpccontext-consumer.xml");
+        context.start();
+        RpcContextService1 rpcContextService1 = 
context.getBean("consumerService", RpcContextService1.class);
+        rpcContextService1.sayHello();
+    }
+}
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/RpcContextProvider1.java
 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/RpcContextProvider1.java
new file mode 100644
index 00000000..2dfac99b
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/RpcContextProvider1.java
@@ -0,0 +1,34 @@
+/*
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements.  See the NOTICE file distributed with
+ *   this work for additional information regarding copyright ownership.
+ *   The ASF licenses this file to You 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.apache.dubbo.samples.rpccontext;
+
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+import java.util.concurrent.CountDownLatch;
+
+
+public class RpcContextProvider1 {
+    public static void main(String[] args) throws Exception {
+        ClassPathXmlApplicationContext context = new 
ClassPathXmlApplicationContext("spring/dubbo-rpccontext-provider1.xml");
+        context.start();
+        System.out.println("Rpc context provider1 started");
+        new CountDownLatch(1).await();
+    }
+}
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/RpcContextProvider2.java
 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/RpcContextProvider2.java
new file mode 100644
index 00000000..a05da11b
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/RpcContextProvider2.java
@@ -0,0 +1,34 @@
+package org.apache.dubbo.samples.rpccontext;
+/*
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements.  See the NOTICE file distributed with
+ *   this work for additional information regarding copyright ownership.
+ *   The ASF licenses this file to You 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.
+ *
+ */
+
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+import java.util.concurrent.CountDownLatch;
+
+
+public class RpcContextProvider2 {
+    public static void main(String[] args) throws Exception {
+        new EmbeddedZooKeeper(2181, false).start();
+        ClassPathXmlApplicationContext context = new 
ClassPathXmlApplicationContext("spring/dubbo-rpccontext-provider2.xml");
+        context.start();
+        System.out.println("Rpc context provider2 started");
+        new CountDownLatch(1).await();
+    }
+}
\ No newline at end of file
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/api/RpcContextService1.java
 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/api/RpcContextService1.java
new file mode 100644
index 00000000..46e14d0b
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/api/RpcContextService1.java
@@ -0,0 +1,28 @@
+
+/*
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements.  See the NOTICE file distributed with
+ *   this work for additional information regarding copyright ownership.
+ *   The ASF licenses this file to You 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.apache.dubbo.samples.rpccontext.api;
+
+
+import org.apache.dubbo.samples.rpccontext.dto.Service1DTO;
+
+public interface RpcContextService1 {
+    Service1DTO sayHello();
+}
\ No newline at end of file
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/api/RpcContextService2.java
 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/api/RpcContextService2.java
new file mode 100644
index 00000000..97f10ad0
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/api/RpcContextService2.java
@@ -0,0 +1,28 @@
+
+/*
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements.  See the NOTICE file distributed with
+ *   this work for additional information regarding copyright ownership.
+ *   The ASF licenses this file to You 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.apache.dubbo.samples.rpccontext.api;
+
+
+import org.apache.dubbo.samples.rpccontext.dto.Service2DTO;
+
+public interface RpcContextService2 {
+    Service2DTO sayHi();
+}
\ No newline at end of file
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/dto/Service1DTO.java
 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/dto/Service1DTO.java
new file mode 100644
index 00000000..2efe969c
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/dto/Service1DTO.java
@@ -0,0 +1,53 @@
+/*
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements.  See the NOTICE file distributed with
+ *   this work for additional information regarding copyright ownership.
+ *   The ASF licenses this file to You 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.apache.dubbo.samples.rpccontext.dto;
+
+import java.io.Serializable;
+
+public class Service1DTO implements Serializable {
+    private String consumerReq;
+    private String provider2Res;
+
+    private Service2DTO service2DTO;
+
+    public Service2DTO getService2DTO() {
+        return service2DTO;
+    }
+
+    public void setService2DTO(Service2DTO service2DTO) {
+        this.service2DTO = service2DTO;
+    }
+
+    public String getConsumerReq() {
+        return consumerReq;
+    }
+
+    public void setConsumerReq(String consumerReq) {
+        this.consumerReq = consumerReq;
+    }
+
+    public String getProvider2Res() {
+        return provider2Res;
+    }
+
+    public void setProvider2Res(String provider2Res) {
+        this.provider2Res = provider2Res;
+    }
+}
\ No newline at end of file
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/dto/Service2DTO.java
 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/dto/Service2DTO.java
new file mode 100644
index 00000000..98109fc8
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/dto/Service2DTO.java
@@ -0,0 +1,43 @@
+/*
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements.  See the NOTICE file distributed with
+ *   this work for additional information regarding copyright ownership.
+ *   The ASF licenses this file to You 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.apache.dubbo.samples.rpccontext.dto;
+
+import java.io.Serializable;
+
+public class Service2DTO implements Serializable {
+    private String consumerReq;
+    private String provider1Req;
+
+    public String getConsumerReq() {
+        return consumerReq;
+    }
+
+    public void setConsumerReq(String consumerReq) {
+        this.consumerReq = consumerReq;
+    }
+
+    public String getProvider1Req() {
+        return provider1Req;
+    }
+
+    public void setProvider1Req(String provider1Req) {
+        this.provider1Req = provider1Req;
+    }
+}
\ No newline at end of file
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/impl/PenetrateAttachmentSelectorImpl1.java
 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/impl/PenetrateAttachmentSelectorImpl1.java
new file mode 100644
index 00000000..c38b6fc3
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/impl/PenetrateAttachmentSelectorImpl1.java
@@ -0,0 +1,39 @@
+/*
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements.  See the NOTICE file distributed with
+ *   this work for additional information regarding copyright ownership.
+ *   The ASF licenses this file to You 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.apache.dubbo.samples.rpccontext.impl;
+
+import org.apache.dubbo.rpc.Invocation;
+import org.apache.dubbo.rpc.PenetrateAttachmentSelector;
+import org.apache.dubbo.rpc.RpcContextAttachment;
+
+import java.util.Map;
+
+public class PenetrateAttachmentSelectorImpl1 implements 
PenetrateAttachmentSelector {
+
+    @Override
+    public Map<String, Object> select(Invocation invocation, 
RpcContextAttachment clientAttachment, RpcContextAttachment serverAttachment) {
+        return null;
+    }
+
+    @Override
+    public Map<String, Object> selectReverse(Invocation invocation, 
RpcContextAttachment clientResponse, RpcContextAttachment serverResponse) {
+        return null;
+    }
+}
\ No newline at end of file
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/impl/RpcContextImpl1.java
 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/impl/RpcContextImpl1.java
new file mode 100644
index 00000000..29d218c7
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/impl/RpcContextImpl1.java
@@ -0,0 +1,58 @@
+/*
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements.  See the NOTICE file distributed with
+ *   this work for additional information regarding copyright ownership.
+ *   The ASF licenses this file to You 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.apache.dubbo.samples.rpccontext.impl;
+
+import org.apache.dubbo.config.ReferenceConfig;
+import org.apache.dubbo.config.bootstrap.DubboBootstrap;
+import org.apache.dubbo.rpc.RpcContext;
+import org.apache.dubbo.samples.rpccontext.api.RpcContextService1;
+import org.apache.dubbo.samples.rpccontext.api.RpcContextService2;
+import org.apache.dubbo.samples.rpccontext.dto.Service1DTO;
+import org.apache.dubbo.samples.rpccontext.dto.Service2DTO;
+import org.apache.dubbo.samples.rpccontext.utils.RpcContextUtils;
+import org.springframework.stereotype.Component;
+import org.springframework.stereotype.Service;
+
+@Service
+@Component("demoService")
+public class RpcContextImpl1 implements RpcContextService1 {
+
+    @Override
+    public Service1DTO sayHello(){
+        Service1DTO service1DTO = new Service1DTO();
+        String consumerReq = 
RpcContext.getServerAttachment().getAttachment(RpcContextUtils.consumer_req_key);
+        System.out.println("get request from consumer:"+ consumerReq);
+        ReferenceConfig<RpcContextService2> ref = new ReferenceConfig<>();
+        ref.setInterface(RpcContextService2.class);
+        ref.setProtocol(RpcContextUtils.dubbo_protocol);
+        ref.setTimeout(30000000);
+        DubboBootstrap bootstrap = DubboBootstrap.getInstance();
+        RpcContextService2 greeterSayHi = bootstrap.getCache().get(ref);
+        
RpcContext.getClientAttachment().setObjectAttachment(RpcContextUtils.provider1_req_key,
 RpcContextUtils.provider1_req_key);
+        Service2DTO service2DTO = greeterSayHi.sayHi();
+        String provider2Res = 
(String)RpcContext.getClientResponseContext().getObjectAttachment(RpcContextUtils.provider2_res_key);
+        System.out.println("get response from provider2:"+ provider2Res);
+        
RpcContext.getServerResponseContext().setObjectAttachment(RpcContextUtils.provider1_res_key,
 RpcContextUtils.provider1_res_key);
+        service1DTO.setConsumerReq(consumerReq);
+        service1DTO.setProvider2Res(provider2Res);
+        service1DTO.setService2DTO(service2DTO);
+        return service1DTO;
+    }
+}
\ No newline at end of file
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/impl/RpcContextImpl2.java
 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/impl/RpcContextImpl2.java
new file mode 100644
index 00000000..687ad0f2
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/impl/RpcContextImpl2.java
@@ -0,0 +1,43 @@
+/*
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements.  See the NOTICE file distributed with
+ *   this work for additional information regarding copyright ownership.
+ *   The ASF licenses this file to You 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.apache.dubbo.samples.rpccontext.impl;
+
+import org.apache.dubbo.rpc.RpcContext;
+import org.apache.dubbo.samples.rpccontext.api.RpcContextService2;
+import org.apache.dubbo.samples.rpccontext.dto.Service2DTO;
+import org.apache.dubbo.samples.rpccontext.utils.RpcContextUtils;
+import org.springframework.stereotype.Service;
+
+@Service
+public class RpcContextImpl2 implements RpcContextService2 {
+
+    @Override
+    public Service2DTO sayHi(){
+        Service2DTO service2DTO = new Service2DTO();
+        String consumerReq = 
RpcContext.getServerAttachment().getAttachment(RpcContextUtils.consumer_req_key);
+        System.out.println("get request from consumer:"+ consumerReq);
+        String provider1Req =  (String) 
RpcContext.getServerAttachment().getObjectAttachment(RpcContextUtils.provider1_req_key);
+        System.out.println("get request from provider1:"+ provider1Req);
+        
RpcContext.getServerResponseContext().setAttachment(RpcContextUtils.provider2_res_key,
 RpcContextUtils.provider2_res_key);
+        service2DTO.setConsumerReq(consumerReq);
+        service2DTO.setProvider1Req(provider1Req);
+        return service2DTO;
+    }
+}
\ No newline at end of file
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/utils/RpcContextUtils.java
 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/utils/RpcContextUtils.java
new file mode 100644
index 00000000..7245075c
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/java/org/apache/dubbo/samples/rpccontext/utils/RpcContextUtils.java
@@ -0,0 +1,34 @@
+/*
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements.  See the NOTICE file distributed with
+ *   this work for additional information regarding copyright ownership.
+ *   The ASF licenses this file to You 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.apache.dubbo.samples.rpccontext.utils;
+
+import org.apache.dubbo.common.constants.CommonConstants;
+
+public class RpcContextUtils {
+    public static String dubbo_protocol = CommonConstants.DUBBO;
+
+    public static String consumer_req_key = "consumer_req_key";
+
+    public static String provider1_req_key = "provider1_req_key";
+
+    public static String provider2_res_key = "provider2_res_key";
+    public static String provider1_res_key = "provider1_res_key";
+
+}
\ No newline at end of file
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/resources/META-INF/dubbo/internal/org.apache.dubbo.rpc.PenetrateAttachmentSelector
 
b/2-advanced/dubbo-samples-rpccontext/src/main/resources/META-INF/dubbo/internal/org.apache.dubbo.rpc.PenetrateAttachmentSelector
new file mode 100644
index 00000000..b2948cdc
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/resources/META-INF/dubbo/internal/org.apache.dubbo.rpc.PenetrateAttachmentSelector
@@ -0,0 +1 @@
+mock=org.apache.dubbo.samples.rpccontext.impl.PenetrateAttachmentSelectorImpl1
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/resources/log4j.properties 
b/2-advanced/dubbo-samples-rpccontext/src/main/resources/log4j.properties
new file mode 100644
index 00000000..d6ecd5ce
--- /dev/null
+++ b/2-advanced/dubbo-samples-rpccontext/src/main/resources/log4j.properties
@@ -0,0 +1,26 @@
+#
+#
+#   Licensed to the Apache Software Foundation (ASF) under one or more
+#   contributor license agreements.  See the NOTICE file distributed with
+#   this work for additional information regarding copyright ownership.
+#   The ASF licenses this file to You 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.
+#
+#
+
+###set log levels###
+log4j.rootLogger=info, stdout
+###output to the console###
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.Target=System.out
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=[%d{dd/MM/yy hh:mm:ss:sss z}] 
%t %5p %c{2}: %m%n
\ No newline at end of file
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/resources/spring/dubbo-rpccontext-consumer.xml
 
b/2-advanced/dubbo-samples-rpccontext/src/main/resources/spring/dubbo-rpccontext-consumer.xml
new file mode 100644
index 00000000..dac249e5
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/resources/spring/dubbo-rpccontext-consumer.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You 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.
+  -->
+
+<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+       xmlns:dubbo="http://dubbo.apache.org/schema/dubbo";
+       xmlns="http://www.springframework.org/schema/beans"; 
xmlns:context="http://www.springframework.org/schema/context";
+       xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://dubbo.apache.org/schema/dubbo 
http://dubbo.apache.org/schema/dubbo/dubbo.xsd 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context.xsd";>
+    <context:property-placeholder/>
+
+    <!-- consumer's application name, used for tracing dependency relationship 
(not a matching criterion),
+    don't set it same as provider -->
+    <dubbo:application name="rpccontext-consumer"/>
+
+    <!-- use multicast registry center to discover service -->
+    <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
+
+    <!-- generate proxy for the remote service, then demoService can be used 
in the same way as the
+    local regular interface -->
+    <dubbo:reference id="consumerService" check="false" 
interface="org.apache.dubbo.samples.rpccontext.api.RpcContextService1" 
timeout="30000"/>
+
+</beans>
\ No newline at end of file
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/resources/spring/dubbo-rpccontext-provider1.xml
 
b/2-advanced/dubbo-samples-rpccontext/src/main/resources/spring/dubbo-rpccontext-provider1.xml
new file mode 100644
index 00000000..45cfab0a
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/resources/spring/dubbo-rpccontext-provider1.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You 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.
+  -->
+
+<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+       xmlns:dubbo="http://dubbo.apache.org/schema/dubbo";
+       xmlns="http://www.springframework.org/schema/beans"; 
xmlns:context="http://www.springframework.org/schema/context";
+       xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://dubbo.apache.org/schema/dubbo 
http://dubbo.apache.org/schema/dubbo/dubbo.xsd 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context.xsd";>
+    <context:property-placeholder/>
+
+    <dubbo:application name="rpccontext-provider-1"/>
+
+    <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
+
+    <dubbo:protocol name="dubbo" port="20880"/>
+
+    <dubbo:provider token="true"/>
+
+    <bean id="rpcContextImpl1" 
class="org.apache.dubbo.samples.rpccontext.impl.RpcContextImpl1"/>
+
+    <dubbo:service 
interface="org.apache.dubbo.samples.rpccontext.api.RpcContextService1" 
ref="rpcContextImpl1"/>
+
+    <dubbo:reference  id="rpccontextService1" check="false" 
interface="org.apache.dubbo.samples.rpccontext.api.RpcContextService2" 
timeout="30000"/>
+
+</beans>
\ No newline at end of file
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/main/resources/spring/dubbo-rpccontext-provider2.xml
 
b/2-advanced/dubbo-samples-rpccontext/src/main/resources/spring/dubbo-rpccontext-provider2.xml
new file mode 100644
index 00000000..72783936
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/main/resources/spring/dubbo-rpccontext-provider2.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You 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.
+  -->
+
+<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+       xmlns:dubbo="http://dubbo.apache.org/schema/dubbo";
+       xmlns="http://www.springframework.org/schema/beans"; 
xmlns:context="http://www.springframework.org/schema/context";
+       xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://dubbo.apache.org/schema/dubbo 
http://dubbo.apache.org/schema/dubbo/dubbo.xsd 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context.xsd";>
+    <context:property-placeholder/>
+
+    <dubbo:application name="rpccontext-provider-2"/>
+
+    <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
+
+    <dubbo:protocol name="dubbo" port="20882"/>
+
+    <dubbo:provider token="true"/>
+
+    <bean id="rpcContextImpl2" 
class="org.apache.dubbo.samples.rpccontext.impl.RpcContextImpl2"/>
+
+    <dubbo:service 
interface="org.apache.dubbo.samples.rpccontext.api.RpcContextService2" 
ref="rpcContextImpl2"/>
+
+</beans>
\ No newline at end of file
diff --git 
a/2-advanced/dubbo-samples-rpccontext/src/test/java/org/apache/dubbo/samples/rpccontext/RpcContextServiceIT.java
 
b/2-advanced/dubbo-samples-rpccontext/src/test/java/org/apache/dubbo/samples/rpccontext/RpcContextServiceIT.java
new file mode 100644
index 00000000..fbac4c4a
--- /dev/null
+++ 
b/2-advanced/dubbo-samples-rpccontext/src/test/java/org/apache/dubbo/samples/rpccontext/RpcContextServiceIT.java
@@ -0,0 +1,64 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.dubbo.samples.rpccontext;
+
+import org.apache.dubbo.rpc.RpcContext;
+import org.apache.dubbo.samples.rpccontext.api.RpcContextService1;
+import org.apache.dubbo.samples.rpccontext.dto.Service1DTO;
+import org.apache.dubbo.samples.rpccontext.dto.Service2DTO;
+import org.apache.dubbo.samples.rpccontext.utils.RpcContextUtils;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(locations = 
{"classpath*:spring/dubbo-rpccontext-consumer.xml"})
+public class RpcContextServiceIT {
+
+    @Autowired
+    private RpcContextService1 service;
+
+    /**
+     * A -> B -> C
+     * Both B and C can receive the client attachment from A
+     * consumer_req_key means the A request data
+     * provider1_req_key 、provider1_res_key respectively means the B request 
data and response data
+     * provider2_res_key means the C response data
+     */
+
+    @Test
+    public void testRpcContext1() {
+        
RpcContext.getClientAttachment().setAttachment(RpcContextUtils.consumer_req_key,
 RpcContextUtils.consumer_req_key);
+        Service1DTO service1DTO = service.sayHello();
+        Service2DTO service2DTO = service1DTO.getService2DTO();
+        String provider1Res = 
RpcContext.getClientResponseContext().getAttachment(RpcContextUtils.provider1_res_key);
+        Assert.assertEquals(RpcContextUtils.provider1_res_key, provider1Res);
+
+        Assert.assertEquals(RpcContextUtils.consumer_req_key, 
service1DTO.getConsumerReq());
+        Assert.assertEquals(null, service2DTO.getConsumerReq());
+
+        Assert.assertEquals(RpcContextUtils.provider1_req_key, 
service2DTO.getProvider1Req());
+
+        String provider2Res = (String) 
RpcContext.getClientResponseContext().getObjectAttachment(RpcContextUtils.provider2_res_key);
+        Assert.assertEquals(null, provider2Res);
+        Assert.assertEquals(RpcContextUtils.provider2_res_key, 
service1DTO.getProvider2Res());
+    }
+}
\ No newline at end of file
diff --git a/2-advanced/pom.xml b/2-advanced/pom.xml
index b179f855..3fbf4b7c 100644
--- a/2-advanced/pom.xml
+++ b/2-advanced/pom.xml
@@ -54,5 +54,6 @@
         <module>dubbo-samples-tengine</module>
         <module>dubbo-samples-validation</module>
         <module>dubbo-samples-version</module>
+        <module>dubbo-samples-rpccontext</module>
     </modules>
 </project>
\ No newline at end of file


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