我是靠谱客的博主 冷静花卷,这篇文章主要介绍使用MapReduce获取手机号以及使用信息,现在分享给大家,希望可以做个参考。

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。

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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。

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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。

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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。

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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)

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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

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