<pre name="code" class="html"><pre name="code" class="html">package com.zjs.mr2;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.NullWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.Reducer;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
public class JobRun {
public static void main(String[] args) {
JobRun jr =new JobRun();
try {
System.out.println(jr.run() ?"执行成功":"执行失败");
} catch (Exception e) {
e.printStackTrace();
}
}
public boolean run() throws Exception{
Configuration conf
Mapreducer天气排序,分区,分组,排序
最新推荐文章于 2020-11-12 16:03:01 发布