package?MaxTemper;

import?org.apache.hadoop.fs.Path;
import?org.apache.hadoop.io.IntWritable;
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;
public?class?MTJob?{
	
	public?static?void?main（String[]?args）?throws?Exception?{
		if?（args.length?!=?2）?{
			System.err.println（“Usage:?MaxTemperature??“）;
			System.exit（-1）;
		}
		@SuppressWarnings（“deprecation“）
		Job?job?=?new?Job（）;
		job.setJarByClass（MTJob.class）;
		job.setJobName（“Max?temperature“）;
		
		FileInputFormat.addInputPath（job?new?Path（args[0]））;
		FileOutputFormat.setOutputPath（job?new?Path（args[1]））;
		job.setMapperClass（MTMapper.class）;
		job.setReducerClass（MTReducer.class）;
		job.setOutputKeyClass（Text.class）;
		job.setOutputValueClass（IntWritable.class）;
		System.exit（job.waitForCompletion（true）???0?:?1）;
	}	
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件??????18508??2018-05-03?21:03??MaxTemperature\.classpath

?????文件????????425??2018-05-03?21:03??MaxTemperature\.project

?????文件???????1563??2018-05-03?21:03??MaxTemperature\bin\MaxTemper\MTJob.class

?????文件???????2457??2018-05-03?21:03??MaxTemperature\bin\MaxTemper\MTMapper.class

?????文件???????2284??2018-05-03?21:03??MaxTemperature\bin\MaxTemper\MTReducer.class

?????文件????????966??2018-05-03?21:03??MaxTemperature\src\MaxTemper\MTJob.java

?????文件????????956??2018-05-03?21:03??MaxTemperature\src\MaxTemper\MTMapper.java

?????文件????????553??2018-05-03?21:03??MaxTemperature\src\MaxTemper\MTReducer.java

?????目錄??????????0??2018-05-03?21:03??MaxTemperature\bin\MaxTemper

?????目錄??????????0??2018-05-03?21:03??MaxTemperature\src\MaxTemper

?????目錄??????????0??2018-05-03?21:03??MaxTemperature\bin

?????目錄??????????0??2018-05-03?21:03??MaxTemperature\src

?????目錄??????????0??2018-05-03?21:03??MaxTemperature

-----------?---------??----------?-----??----

????????????????27712????????????????????13