14.3 Strom测试代码

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StromTest ：

package com.yuntian.test;

import backtype.storm.Config;

import backtype.storm.LocalCluster;

import backtype.storm.StormSubmitter;

import backtype.storm.generated.AlreadyAliveException;

import backtype.storm.generated.InvalidTopologyException;

import backtype.storm.topology.TopologyBuilder;

public class StromTest {

 public static void main(String[] args) throws AlreadyAliveException, InvalidTopologyException{

  TopologyBuilder bulider = new TopologyBuilder();

  bulider.setSpout("myspout", new MySpout());

  bulider.setBolt("mybolt", new MyBolt()).shuffleGrouping("myspout");

  

  Config conf = new Config();

  //当有参数的时候是集群执行

  if(args !=null && args.length > 0){

   conf.setNumWorkers(3);

   StormSubmitter.submitTopology("StromTest", conf, bulider.createTopology());

  }else{

   conf.setDebug(true);

   conf.setMaxSpoutPending(10);//多少个线程来启动

   LocalCluster locla = new LocalCluster();

   locla.submitTopology("StromTest", conf, bulider.createTopology());

  }

 }

}

---

MySpout：

package com.yuntian.test;

import java.util.Map;

import backtype.storm.spout.SpoutOutputCollector;

import backtype.storm.task.TopologyContext;

import backtype.storm.topology.IRichSpout;

import backtype.storm.topology.OutputFieldsDeclarer;

import backtype.storm.tuple.Fields;

import backtype.storm.tuple.Values;

public class MySpout implements IRichSpout{

 SpoutOutputCollector collector = null;

 @Override

 public void ack(Object arg0) {

 }

 @Override

 public void activate() {

 }

 @Override

 public void close() {

 }

 @Override

 public void deactivate() {

 }

 @Override

 public void fail(Object arg0) {

 }

 @Override

 public void nextTuple() {

  try {

   Thread.sleep(1000);

  } catch (InterruptedException e) {

   e.printStackTrace();

  }

  collector.emit(new Values("111","222","333"));

 }

 @Override

 public void open(Map arg0, TopologyContext arg1, SpoutOutputCollector collector) {

  this.collector=collector;

 }

 @Override

 public void declareOutputFields(OutputFieldsDeclarer arg0) {

  arg0.declare(new Fields("aaa","bbb","ccc"));

 }

 @Override

 public Map<String, Object> getComponentConfiguration() {

  return null;

 }

}

---

MyBolt：

package com.yuntian.test;

import java.util.Map;

import backtype.storm.task.OutputCollector;

import backtype.storm.task.TopologyContext;

import backtype.storm.topology.IRichBolt;

import backtype.storm.topology.OutputFieldsDeclarer;

import backtype.storm.tuple.Tuple;

public class MyBolt implements IRichBolt{

 @Override

 public void cleanup() {

 }

 @Override

 public void execute(Tuple arg0) {

  System.out.println(arg0.getString(0));

  System.out.println(arg0.getString(1));

  System.out.println(arg0.getString(2));

 }

 @Override

 public void prepare(Map arg0, TopologyContext arg1, OutputCollector arg2) {

 }

 @Override

 public void declareOutputFields(OutputFieldsDeclarer arg0) {

 }

 @Override

 public Map<String, Object> getComponentConfiguration() {

  return null;

 }

}

---

本机连接storm集群在eclipse上测试运行：