update examples

spring-cloud-alibaba-examples/rocketmq-example/rocketmq-produce-example/src/main/java/com/alibaba/cloud/examples/MyPartitionSelectorStrategy.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2018 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
+ *
+ *      https://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 com.alibaba.cloud.examples;
+
+import org.springframework.cloud.stream.binder.PartitionSelectorStrategy;
+
+/**
+ * @author <a href="mailto:fangjian0423@gmail.com">Jim</a>
+ */
+public class MyPartitionSelectorStrategy implements PartitionSelectorStrategy {
+    @Override
+    public int selectPartition(Object key, int partitionCount) {
+        System.out.println("partition key: " + key + ", partitionCount: " + partitionCount);
+        return 0;
+    }
+}

spring-cloud-alibaba-examples/rocketmq-example/rocketmq-produce-example/src/main/java/com/alibaba/cloud/examples/RocketMQProduceApplication.java

@@ -9,6 +9,7 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cloud.stream.annotation.EnableBinding;
 import org.springframework.cloud.stream.annotation.Output;
 import org.springframework.context.annotation.Bean;
+import org.springframework.messaging.Message;
 import org.springframework.messaging.MessageChannel;
 import org.springframework.messaging.support.MessageBuilder;
 
@@ -28,6 +29,9 @@ public class RocketMQProduceApplication {
 
 		@Output("output3")
 		MessageChannel output3();
+
+		@Output("output4")
+		MessageChannel output4();
 	}
 
 	public static void main(String[] args) {
@@ -44,6 +48,11 @@ public class RocketMQProduceApplication {
 		return new CustomRunner("output3");
 	}
 
+	@Bean
+	public CustomRunner customRunner3() {
+		return new CustomRunner("output4");
+	}
+
 	@Bean
 	public CustomRunnerWithTransactional customRunnerWithTransactional() {
 		return new CustomRunnerWithTransactional();
@@ -88,6 +97,15 @@ public class RocketMQProduceApplication {
 							.send(MessageBuilder.withPayload(msgContent).build());
 				}
 			}
+			else if (this.bindingName.equals("output4")) {
+				int count = 5;
+				for (int index = 1; index <= count; index++) {
+					String msgContent = "partitionMsg-" + index;
+					Message message = MessageBuilder.withPayload(msgContent)
+							.setHeader("myPartitionKey", "myPartitionKey").build();
+					mySource.output4().send(message);
+				}
+			}
 
 		}
 	}

spring-cloud-alibaba-examples/rocketmq-example/rocketmq-produce-example/src/main/java/com/alibaba/cloud/examples/SenderService.java

@@ -5,6 +5,7 @@ import java.util.stream.Stream;
 
 import com.alibaba.cloud.examples.RocketMQProduceApplication.MySource;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.apache.rocketmq.common.message.MessageConst;
 import org.apache.rocketmq.spring.support.RocketMQHeaders;
 
@@ -24,6 +25,8 @@ public class SenderService {
 	@Autowired
 	private MySource source;
 
+	private ObjectMapper objectMapper = new ObjectMapper();
+
 	public void send(String msg) throws Exception {
 		source.output1().send(MessageBuilder.withPayload(msg).build());
 	}
@@ -38,6 +41,7 @@ public class SenderService {
 	public <T> void sendObject(T msg, String tag) throws Exception {
 		Message message = MessageBuilder.withPayload(msg)
 				.setHeader(MessageConst.PROPERTY_TAGS, tag)
+				.setHeader("foo", new Foo(1, "bar"))
 				.setHeader(MessageHeaders.CONTENT_TYPE, MimeTypeUtils.APPLICATION_JSON)
 				.build();
 		source.output1().send(message);

spring-cloud-alibaba-examples/rocketmq-example/rocketmq-produce-example/src/main/resources/application.properties

@@ -6,6 +6,7 @@ spring.cloud.stream.bindings.output1.destination=test-topic
 spring.cloud.stream.bindings.output1.content-type=application/json
 spring.cloud.stream.rocketmq.bindings.output1.producer.group=binder-group
 spring.cloud.stream.rocketmq.bindings.output1.producer.sync=true
+spring.cloud.stream.rocketmq.bindings.output1.producer.sendMessageTimeout=30000
 
 spring.cloud.stream.bindings.output2.destination=TransactionTopic
 spring.cloud.stream.bindings.output2.content-type=application/json
@@ -16,6 +17,12 @@ spring.cloud.stream.bindings.output3.destination=pull-topic
 spring.cloud.stream.bindings.output3.content-type=text/plain
 spring.cloud.stream.rocketmq.bindings.output3.producer.group=pull-binder-group
 
+spring.cloud.stream.bindings.output4.destination=partition-topic
+spring.cloud.stream.bindings.output4.content-type=text/plain
+spring.cloud.stream.bindings.output4.producer.partition-key-expression=headers['myPartitionKey']
+spring.cloud.stream.bindings.output4.producer.partition-selector-class=com.alibaba.cloud.examples.MyPartitionSelectorStrategy
+spring.cloud.stream.rocketmq.bindings.output4.producer.group=partition-binder-group
+
 spring.application.name=rocketmq-produce-example
 
 server.port=28081