kafka

whatsmars-mq/pom.xml

@@ -65,6 +65,33 @@
             <version>0.4.2</version>
         </dependency>
 
+        <dependency>
+            <groupId>org.apache.kafka</groupId>
+            <artifactId>kafka_2.8.2</artifactId>
+            <version>0.8.0</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.scala-lang</groupId>
+            <artifactId>scala-library</artifactId>
+            <version>2.8.2</version>
+        </dependency>
+        <dependency>
+            <groupId>com.yammer.metrics</groupId>
+            <artifactId>metrics-core</artifactId>
+            <version>2.2.0</version>
+        </dependency>
+        <dependency>
+            <groupId>com.101tec</groupId>
+            <artifactId>zkclient</artifactId>
+            <version>0.3</version>
+        </dependency>
+
 
 
     </dependencies>

whatsmars-mq/src/main/java/com/itlong/whatsmars/mq/kafka/KafkaConsumer.java

+package com.itlong.whatsmars.mq.kafka;
+
+import kafka.consumer.ConsumerConfig;
+import kafka.consumer.ConsumerIterator;
+import kafka.consumer.KafkaStream;
+import kafka.javaapi.consumer.ConsumerConnector;
+import kafka.serializer.StringDecoder;
+import kafka.utils.VerifiableProperties;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+
+public class KafkaConsumer {
+
+    public static void main(String[] args) {
+        Properties props = new Properties();
+        props.put("zookeeper.connect", "127.0.0.1:2181");
+        //group 代表一个消费组
+        props.put("group.id", "jd-group");
+        props.put("zookeeper.session.timeout.ms", "4000");
+        props.put("zookeeper.sync.time.ms", "200");
+        props.put("auto.commit.interval.ms", "1000");
+        props.put("auto.offset.reset", "smallest");
+        props.put("serializer.class", "kafka.serializer.StringEncoder");
+
+        ConsumerConfig config = new ConsumerConfig(props);
+
+        ConsumerConnector consumer = kafka.consumer.Consumer.createJavaConsumerConnector(config);
+
+        Map<String, Integer> topicCountMap = new HashMap<String, Integer>();
+        topicCountMap.put("TestTopic", 1);
+
+        StringDecoder keyDecoder = new StringDecoder(new VerifiableProperties());
+        StringDecoder valueDecoder = new StringDecoder(new VerifiableProperties());
+
+        Map<String, List<KafkaStream<String, String>>> consumerMap =
+                consumer.createMessageStreams(topicCountMap, keyDecoder, valueDecoder);
+        KafkaStream<String, String> stream = consumerMap.get("TestTopic").get(0);
+        ConsumerIterator<String, String> it = stream.iterator();
+        while (it.hasNext()) {
+            System.out.println(it.next().message());
+        }
+        System.out.println("finished");
+    }  
+}  
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whatsmars-mq/src/main/java/com/itlong/whatsmars/mq/kafka/KafkaProducer.java

+package com.itlong.whatsmars.mq.kafka;
+
+import kafka.javaapi.producer.Producer;
+import kafka.producer.KeyedMessage;
+import kafka.producer.ProducerConfig;
+
+import java.util.Properties;
+
+public class KafkaProducer {
+
+    public static void main(String[] args) {
+        Properties props = new Properties();
+        props.put("metadata.broker.list", "127.0.0.1:9092");
+        props.put("serializer.class", "kafka.serializer.StringEncoder");
+        props.put("key.serializer.class", "kafka.serializer.StringEncoder");
+        props.put("request.required.acks","-1");
+
+        Producer<String, String> producer = new Producer<String, String>(new ProducerConfig(props));
+
+        int messageNo = 100;
+        final int COUNT = 1000;
+        while (messageNo < COUNT) {
+            String key = String.valueOf(messageNo);
+            String data = "hello kafka message " + key;
+            producer.send(new KeyedMessage<String, String>("TestTopic", key ,data));
+            System.out.println(data);
+            messageNo ++;
+        }
+    }  
+}  
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