mapreduce模板.txt

import java.io.IOException;

import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.LongWritable;
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 sexCount {
public static void main(String[] args) throws Exception {
        Job job = new Job();
        job.setJarByClass(sexCount.class);
        job.setJobName("Job2 MapReduce");
        FileInputFormat.addInputPath(job, new Path("/data/zzti/lec/input"));
        FileOutputFormat.setOutputPath(job, new Path("/data/zzti/lec/Job2/output"));
        job.setMapperClass(Job2Mapper.class);
        job.setReducerClass(Job2Reducer.class);
        job.setOutputKeyClass(Text.class);
        job.setOutputValueClass(Text.class);
        System.exit(job.waitForCompletion(true) ? 0 : 1);
    }
 private static class Job2Mapper extends Mapper<LongWritable, Text, Text, Text> {

        @Override
        protected void setup(Mapper<LongWritable, Text, Text, Text>.Context context)
                throws IOException, InterruptedException {