旧版本高级Api封装：

package xxxxxx;

import kafka.producer.KeyedMessage;

import kafka.producer.ProducerConfig;

import java.util.Properties;

public class KafkaProducerTest implements Runnable {

private final kafka.javaapi.producer.Producer producer;

private final String topic;

private final Properties props = new Properties();

private final String message;

public KafkaProducerTest(String topic, String message) {

props.put("serializer.class", "kafka.serializer.StringEncoder");

props.put("metadata.broker.list", "127.0.0.1:9092");

// Use random partitioner. Don't need the key type. Just set it to Integer.

// The message is of type String.

producer = new kafka.javaapi.producer.Producer(new ProducerConfig(props));

this.topic = topic;

this.message = message;

}

@Override

public void run() {

producer.send(new KeyedMessage(topic, message));

System.out.println("发送kafka消息:"+message);

}

public static void main(String[] arg){

for(int icount=0;icount<100;icount++){

KafkaProducerTest kafkaProducer = new KafkaProducerTest("myTopic", "hello world!");

Thread thread = new Thread(kafkaProducer);

thread.start();

}

}

}

package xxxxxxxxx;

import kafka.consumer.ConsumerConfig;

import kafka.consumer.ConsumerIterator;

import kafka.consumer.KafkaStream;

import kafka.javaapi.consumer.ConsumerConnector;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.Properties;

public class KafkaConsumerTest implements Runnable{

private final ConsumerConnector consumer;

private final String topic;

public KafkaConsumerTest(String topic)

{

consumer = kafka.consumer.Consumer.createJavaConsumerConnector(

createConsumerConfig());

this.topic = topic;

}

private static ConsumerConfig createConsumerConfig()

{

Properties props = new Properties();

props.put("zookeeper.connect", "127.0.0.1:2181");

props.put("group.id", "myGroup");

props.put("zookeeper.session.timeout.ms", "400");

props.put("zookeeper.sync.time.ms", "200");

props.put("auto.commit.interval.ms", "1000");

return new ConsumerConfig(props);

}

@Override

public void run() {

Map topicCountMap = new HashMap();

topicCountMap.put(topic, new Integer(1));

Map>> consumerMap = consumer.createMessageStreams(topicCountMap);

System.out.println("开始启动.....");

try {

KafkaStream stream = consumerMap.get(topic).get(0);

ConsumerIterator it = stream.iterator();

while (it.hasNext()) {

System.out.println("消费信息:" + new String(it.next().message()));

}

}catch (Exception e){

e.printStackTrace();

}

}

public static void main(String [] arg){

KafkaConsumerTest kafkaConsumer = new KafkaConsumerTest("myTopic");

Thread thread = new Thread(kafkaConsumer);

thread.start();

}

}

注意配置信息：

1、pom.xml文件中增加plugin:

org.mortbay.jetty

jetty-maven-plugin

7.6.10.v20130312

${basedir}/webapp

stop

55855

0

8085

60000

/

global.config.path

${basedir}/src/main/resources/config

APPID

spider.mySpider

2、读取配置文件信息的工具类：

package xxxxxx;

import com.alibaba.fastjson.JSON;

import java.io.File;

import java.io.FileInputStream;

import java.io.IOException;

import java.util.Properties;

public class ReadConfigUtil {

private static Properties prop;

private static String globalConfigPath = System.getProperty("global.config.path");

static {

prop = new Properties();

// 遍历所有.properties文件

File cfgFiles = new File(globalConfigPath);

if (cfgFiles.exists()) {

File[] fs = cfgFiles.listFiles();

for (File confFile : fs) {

try {

String confName = confFile.getName();

if (confName.endsWith(".properties")) {

FileInputStream fis = new FileInputStream(confFile);

prop.load(fis);

}

} catch (IOException e) {

e.printStackTrace();

}

}

}

}

public static Properties getProp() {

return prop;

}

public static String getValueByKey(String key) {

return getProp().getProperty(key);

}

}

kafka版本引用：

org.apache.kafka

kafka_2.11

0.8.2.1

slf4j-log4j12

org.slf4j