Hadoop中如何从hdfs中导入数据到hbase中

import java.io.IOException;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.client.Mutation;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil;
import org.apache.hadoop.hbase.mapreduce.TableReducer;
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;

public class ReadHdfsToHbase {
public static void main(String[] args) {
Configuration conf=new Configuration();
conf.set(“fs.defaultFS”, “hdfs://bd1803”);
conf.set(“hbase.zookeeper.quorum”, “centos01:2181,centos02:2181,centos03:2181”);
System.setProperty(“HADOOP_USER_NAME”, “centos”);

	try {
		Job job=Job.getInstance(conf);
		
		job.setJarByClass(ReadHdfsToHbase.class);
		
		job.setMapperClass(MyMapper.class);
		
		TableMapReduceUtil.initTableReducerJob("mingxing", MyReducer.class, job,
				null, null, null, null, false);
		
		job.setMapOutputKeyClass(Text.class);
		job.setMapOutputValueClass(NullWritable.class);
		
		job.setOutputKeyClass(NullWritable.class);
		job.setOutputValueClass(Mutation.class);
		
		FileInputFormat.addInputPath(job, new Path("/mingxingin"));
		
		job.waitForCompletion(true);
		
	} catch (Exception e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
}

static class MyMapper extends Mapper<LongWritable, Text, Text, NullWritable>{
	@Override
	protected void map(LongWritable key, Text value, Mapper<LongWritable, Text, Text, NullWritable>.Context context)
			throws IOException, InterruptedException {
		context.write(value, NullWritable.get());
	}
	
}
static class MyReducer extends TableReducer<Text, NullWritable, NullWritable>{
	@Override
	protected void reduce(Text key, Iterable<NullWritable> values,
			Reducer<Text, NullWritable, NullWritable, Mutation>.Context context)
			throws IOException, InterruptedException {
		String line = key.toString();
		String[] split = line.split(",");
		//zhangfenglun,M,20,13522334455,[email protected],23521472
		Put p=new Put(split[0].getBytes());
		p.add("basicinfo".getBytes(), "sex".getBytes(), split[1].getBytes());
		p.add("basicinfo".getBytes(), "age".getBytes(), split[2].getBytes());
		p.add("extrainfo".getBytes(), "phone".getBytes(), split[3].getBytes());
		p.add("extrainfo".getBytes(), "email".getBytes(), split[4].getBytes());
		p.add("extrainfo".getBytes(), "qq".getBytes(), split[5].getBytes());
		context.write(NullWritable.get(), p);
		
	}
}

}