package?phoneMapReduce;


import?org.apache.hadoop.conf.Configuration;
import?org.apache.hadoop.fs.Path;
import?org.apache.hadoop.io.Text;
import?org.apache.hadoop.mapreduce.Job;
import?org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import?org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;

import?java.io.IOException;

/**
?*?Created?by?ue50?on?11/13/19.
?*/
public?class?PhoneMain
{
????public?static?void?main（String[]?args）?throws?InterruptedException?IOException?ClassNotFoundException
????{
????????//String.equals（）比較字符串的值是否相同
????????if（args?==?null?||?“0“.equals（args[0]））
????????{
????????????throw?new?RuntimeException（“argument?is?not?right!“）;
????????}

????????//Configuration是作業的配置信息類
????????Configuration?configuration?=?new?Configuration（）;
????????//set（String?name?String?value）設置配置項
????????configuration.set（“timeRange“?args[0]）;

????????Job?job?=?Job.getInstance（configuration）;
????????job.setJarByClass（PhoneMain.class）;

????????job.setMapperClass（PhoneMapper.class）;
????????job.setMapOutputKeyClass（Text.class）;
????????job.setMapOutputKeyClass（Text.class）;

????????job.setReducerClass（PhoneReducer.class）;
????????job.setOutputKeyClass（Text.class）;
????????job.setOutputValueClass（Text.class）;

????????//FileInputFormat.setInputPaths（job?new?Path（“hdfs://xdata-m0:8020/user/ue50/pos.txt“））;
????????//FileOutputFormat.setOutputPath（job?new?Path（“hdfs://xdata-m0:8020/user/ue50/out“））;

????????FileInputFormat.setInputPaths（job?new?Path（args[1]））;
????????FileOutputFormat.setOutputPath（job?new?Path（args[2]））;

????????job.waitForCompletion（true）;
????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????1664??2019-11-14?16:03??exam3\PhoneMain.java
?????文件????????2711??2019-11-14?16:03??exam3\PhoneMapper.java
?????文件????????3806??2019-11-14?16:35??exam3\PhoneReducer.java
?????文件????????3669??2019-11-14?16:03??exam3\pom.xml
?????文件?????1168660??2019-11-14?16:03??exam3\pos.txt
?????文件???????59652??2019-11-14?16:03??exam3\實踐三運營商用戶基站停留數據統計.docx
?????目錄???????????0??2019-11-30?23:19??exam3\