flume+kafka+storm+中文分词

思想：flume发送，storm接受，调用webpy服务完成中文分词

storm代码：

stormKafka.java:

package stormHttp;

import backtype.storm.Config;
import backtype.storm.LocalCluster;
import backtype.storm.StormSubmitter;
import backtype.storm.spout.SchemeAsMultiScheme;
import backtype.storm.topology.TopologyBuilder;
import storm.kafka.BrokerHosts;
import storm.kafka.KafkaSpout;
import storm.kafka.SpoutConfig;
import storm.kafka.StringScheme;
import storm.kafka.ZkHosts;

public class stormKafka {
    public static void main(String[] args) throws Exception {

        String topic = "badou_storm_kafka_test";
        String zkRoot = "/badou_storm_kafka_test";
        String spoutId = "kafkaSpout";

        BrokerHosts brokerHosts = new ZkHosts("master:2181");
        SpoutConfig kafkaConf = new SpoutConfig(brokerHosts, topic, zkRoot, spoutId);
        kafkaConf.forceFromStart = true;
        kafkaConf.scheme = new SchemeAsMultiScheme(new StringScheme());

        KafkaSpout kafkaSpout = new KafkaSpout(kafkaConf);

        TopologyBuilder builder = new TopologyBuilder();
        builder.setSpout("spout", kafkaSpout, 2);
        builder.setBolt("feature_extract", new FeatureExtractBolt()).shuffleGrouping("spout");

        Config config = new Config();
        config.setDebug(false);

        if (args != null && args.length > 0) {
            config.setNumWorkers(3);

            StormSubmitter.submitTopology(args[0], config, builder.createTopology());
        } else {
            config.setMaxTaskParallelism(3);

            LocalCluster cluster = new LocalCluster();
            cluster.submitTopology("kafka", config, builder.createTopology());

            // Thread.sleep(10000);

            // cluster.shutdown();
        }
    }
}

HttpclientDemo.java:

package stormHttp;

import java.io.IOException;

import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class HttpclientDemo {
    public static void main(String[] args) throws Exception {
        CloseableHttpClient httpClient = HttpClients.createDefault();
        String content = "中秋节快乐";
        System.out.println(content);
        HttpGet httpGet = new HttpGet("http://192.168.87.10:8808/?content=" + content);
        try {
            CloseableHttpResponse response = httpClient.execute(httpGet);
            HttpEntity entity = response.getEntity();

            System.out.println(response.getStatusLine());
            if (entity != null) {
                System.out.println("Response content length: " + entity.getContentLength());
                String responseString = new String(EntityUtils.toString(entity));
                responseString = new String(responseString.getBytes("ISO-8859-1"), "utf-8");
                System.out.println(responseString);

            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                httpClient.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

FeatureExtractBolt.java:

package stormHttp;

import java.io.IOException;

import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import backtype.storm.topology.BasicOutputCollector;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.topology.base.BaseBasicBolt;
import backtype.storm.tuple.Tuple;

public class FeatureExtractBolt extends BaseBasicBolt {

    @Override
    public void execute(Tuple tuple, BasicOutputCollector collector) {
        System.out.println(tuple);
        String content = tuple.getString(0);

        CloseableHttpClient httpClient = HttpClients.createDefault();

        System.out.println(content);
        HttpGet httpGet = new HttpGet("http://192.168.87.10:8808/?content=" + content);
        try {
            CloseableHttpResponse response = httpClient.execute(httpGet);
            HttpEntity entity = response.getEntity();

            System.out.println(response.getStatusLine());
            if (entity != null) {
                System.out.println("Response content length: " + entity.getContentLength());
                String responseString = new String(EntityUtils.toString(entity));
                responseString = new String(responseString.getBytes("ISO-8859-1"), "utf-8");
                System.out.println(responseString);

            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                httpClient.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    @Override
    public void declareOutputFields(OutputFieldsDeclarer ofd) {
    }

}

启动storm命令：

启动kafka

 ./bin/kafka-server-start.sh config/server.properties

启动flume

启动webpy：

测试及结果：