使用MapReduce获取手机号以及使用信息

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我是靠谱客的博主冷静花卷，最近开发中收集的这篇文章主要介绍使用MapReduce获取手机号以及使用信息，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

这里我们需要获取手机号，以及上行流量与下行流量相加后得到的总流量。
我们需要四个类：
FlowBean类：定义变量方法。

import org.apache.hadoop.io.Writable;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;



public class FlowBean implements Writable {

    private long upFlow;
    private long downFlow;
    private long sumFlow;

    /*
    序列化
    */
    @Override
    public void write(DataOutput dataOutput) throws IOException {
        dataOutput.writeLong(upFlow);
        dataOutput.writeLong(downFlow);
        dataOutput.writeLong(sumFlow);
    }

    /*
    反序列化
    */
    //注意： 序列化和反序列化字段的顺序要保持一致。
    @Override
    public void readFields(DataInput dataInput) throws IOException {
        this.upFlow = dataInput.readLong();
        this.downFlow = dataInput.readLong();
        this.sumFlow = dataInput.readLong();
    }

    public FlowBean() {
    }

    public FlowBean(long upFlow, long downFlow, long sumFlow) {
        this.upFlow = upFlow;
        this.downFlow = downFlow;
        this.sumFlow = sumFlow;
    }
    //  自己创建一个set方法，用于map和reduce设置   这里输出的是总流量。
    public void set(long upFlow,long downFlow){
        this.upFlow=upFlow;
        this.downFlow=downFlow;
        this.sumFlow=upFlow+downFlow;
    }

    @Override
    public String toString() {
        return "FlowBean{" +
                "upFlow=" + upFlow +
                ", downFlow=" + downFlow +
                ", sumFlow=" + sumFlow +
                '}';
    }

    public long getUpFlow() {
        return upFlow;
    }

    public void setUpFlow(long upFlow) {
        this.upFlow = upFlow;
    }

    public long getDownFlow() {
        return downFlow;
    }

    public void setDownFlow(long downFlow) {
        this.downFlow = downFlow;
    }

    public long getSumFlow() {
        return sumFlow;
    }

    public void setSumFlow(long sumFlow) {
        this.sumFlow = sumFlow;
    }
}

FlowMapper类：切割文本获得数据。

import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;

import java.io.IOException;

public class FlowMapper extends Mapper<LongWritable,Text,Text,FlowBean> {
    Text k=new Text();
    FlowBean v=new FlowBean();
    @Override
    protected void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {
        //1.将文本转化成字符串。
        String line=value.toString();

        //2.将字符串进行切割。
        String fields[]=line.split("\s+");

        //3.执行业务逻辑，取出手机号字段  这里数组fields的第二位是存储的手机号。
        String phoneNumber=fields[1];
        //取出上行流量和下行流量 
       long upFlow=Long.parseLong(fields[fields.length-3]);
       long downFlow=Long.parseLong(fields[fields.length-2]);

        //4.map端输出
        k.set(phoneNumber);
        v.set(upFlow,downFlow);
        context.write(k,v);
    }
}

FlowReduce类：处理数据，得到手机号与总流量。

import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Reducer;

import java.io.IOException;

public class FlowReducer extends Reducer<Text,FlowBean,Text,FlowBean> {
    FlowBean v=new FlowBean();
    @Override
    protected void reduce(Text key, Iterable<FlowBean> values, Context context) throws IOException, InterruptedException {
        //reduce的输入大概是这样的("1385555555",(FlowBean (918,4938),FlowBean(1116,954)))


        //创建两个初始值，用于累加操作
        long sum_upFlow=0;
        long sum_downFlow=0;

        //执行累加操作
        for (FlowBean flowBean : values) {
            sum_upFlow+=flowBean.getUpFlow();
            sum_downFlow+= flowBean.getDownFlow();
        }

        //将结果写出
        v.set(sum_upFlow,sum_downFlow);
        context.write(key,v);

    }
}

FlowDriver类：配置文件，配置MapReduce。


import cn.kgc.mr.WordCount.wcDriver;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;

import java.io.IOException;

public class FlowDriver {
    public static void main(String[] args) throws IOException, ClassNotFoundException, InterruptedException {
        //1.创建配置文件
        Configuration conf=new Configuration();
        Job job=Job.getInstance(conf,"wordcount");

        //2.设置jar的位置
        job.setJarByClass(wcDriver.class);

        //3.设置Map和Reducer的位置
        job.setMapperClass(FlowMapper.class);
        job.setReducerClass(FlowReducer.class);

        //4.设置map输出的key，value类型
        job.setMapOutputKeyClass(Text.class);
        job.setMapOutputValueClass(FlowBean.class);

        //5.设置reduce输出的key，value类型
        job.setOutputKeyClass(Text.class);
        job.setOutputValueClass(FlowBean.class);

        //6.设置输入输出路径  这里路径的注意事项在上一个MapReduce实列WordCount中将结果
        FileInputFormat.setInputPaths(job,new Path("D:\A代码\ad\data\fcinput"));
        FileOutputFormat.setOutputPath(job,new Path("D:\A代码\ad\data\fcoutput"));

        //7.提交程序运行
        boolean result=job.waitForCompletion(true);
        System.exit(result?0:1);
    }
}

手机号数据如下所示（未处理过）

1363157985066 	13726230503	00-FD-07-A4-72-B8:CMCC	120.196.100.82	i02.c.aliimg.com		24	27	2481	24681	200
1363157995052 	13826544101	5C-0E-8B-C7-F1-E0:CMCC	120.197.40.4			4	0	264	0	200
1363157991076 	13926435656	20-10-7A-28-CC-0A:CMCC	120.196.100.99			2	4	132	1512	200
1363154400022 	13926251106	5C-0E-8B-8B-B1-50:CMCC	120.197.40.4			4	0	240	0	200
1363157993044 	18211575961	94-71-AC-CD-E6-18:CMCC-EASY	120.196.100.99	iface.qiyi.com	视频网站	15	12	1527	2106	200
1363157995074 	84138413	5C-0E-8B-8C-E8-20:7DaysInn	120.197.40.4	122.72.52.12		20	16	4116	1432	200
1363157993055 	13560439658	C4-17-FE-BA-DE-D9:CMCC	120.196.100.99			18	15	1116	954	200
1363157995033 	15920133257	5C-0E-8B-C7-BA-20:CMCC	120.197.40.4	sug.so.360.cn	信息安全	20	20	3156	2936	200
1363157983019 	13719199419	68-A1-B7-03-07-B1:CMCC-EASY	120.196.100.82			4	0	240	0	200
1363157984041 	13660577991	5C-0E-8B-92-5C-20:CMCC-EASY	120.197.40.4	s19.cnzz.com	站点统计	24	9	6960	690	200
1363157973098 	15013685858	5C-0E-8B-C7-F7-90:CMCC	120.197.40.4	rank.ie.sogou.com	搜索引擎	28	27	3659	3538	200
1363157986029 	15989002119	E8-99-C4-4E-93-E0:CMCC-EASY	120.196.100.99	www.umeng.com	站点统计	3	3	1938	180	200
1363157992093 	13560439658	C4-17-FE-BA-DE-D9:CMCC	120.196.100.99			15	9	918	4938	200
1363157986041 	13480253104	5C-0E-8B-C7-FC-80:CMCC-EASY	120.197.40.4			3	3	180	180	200
1363157984040 	13602846565	5C-0E-8B-8B-B6-00:CMCC	120.197.40.4	2052.flash2-http.qq.com	综合门户	15	12	1938	2910	200
1363157995093 	13922314466	00-FD-07-A2-EC-BA:CMCC	120.196.100.82	img.qfc.cn		12	12	3008	3720	200
1363157982040 	13502468823	5C-0A-5B-6A-0B-D4:CMCC-EASY	120.196.100.99	y0.ifengimg.com	综合门户	57	102	7335	110349	200
1363157986072 	18320173382	84-25-DB-4F-10-1A:CMCC-EASY	120.196.100.99	input.shouji.sogou.com	搜索引擎	21	18	9531	2412	200
1363157990043 	13925057413	00-1F-64-E1-E6-9A:CMCC	120.196.100.55	t3.baidu.com	搜索引擎	69	63	11058	48243	200
1363157988072 	13760778710	00-FD-07-A4-7B-08:CMCC	120.196.100.82			2	2	120	120	200
1363157985066 	13560436666	00-FD-07-A4-72-B8:CMCC	120.196.100.82	i02.c.aliimg.com		24	27	2481	24681	200
1363157993055 	13560436666	C4-17-FE-BA-DE-D9:CMCC	120.196.100.99			18	15	1116	954	200