How to use MapReduce to access hbase data

Package com.mr.test;  
Import java.io.IOException;  
      
Import Java.util.Iterator;  
Import org.apache.hadoop.conf.Configuration;  
Import Org.apache.hadoop.fs.Path;  
Import org.apache.hadoop.hbase.HBaseConfiguration;  
Import Org.apache.hadoop.hbase.KeyValue;  
Import Org.apache.hadoop.hbase.client.Result;  
Import Org.apache.hadoop.hbase.client.Scan;  
Import org.apache.hadoop.hbase.io.ImmutableBytesWritable;  
Import Org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil;  
Import Org.apache.hadoop.hbase.mapreduce.TableMapper;  
Import org.apache.hadoop.hbase.util.Bytes;  
Import org.apache.hadoop.io.IntWritable;  
Import org.apache.hadoop.io.LongWritable;  
Import Org.apache.hadoop.io.Text;  
Import Org.apache.hadoop.mapred.MapReduceBase;  
Import Org.apache.hadoop.mapred.OutputCollector;  
Import Org.apache.hadoop.mapred.Reducer;  
Import Org.apache.hadoop.mapred.Reporter;  
Import Org.apache.hadoop.mapreduce.Job; Import Org.apache.hadoop.mapreduce.lib.input.TextInputFormat;  
Import Org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;  
Import Org.apache.hadoop.mapreduce.lib.output.TextOutputFormat;  
      
      
Import Org.apache.log4j.Logger;  
    public class Mrhbase {private static Logger log = Logger.getlogger (Mrhbase.class);  
    public static String family = "Charactor";  
      
    public static String col = "hobby"; public static class Hmap extends Tablemapper<text, text> {@Override protected void map (Immutableb          Yteswritable key, result value, context context) throws IOException, interruptedexception {//  
KeyValue kv = value.getcolumnlatest (Family.getbytes (),//Col.getbytes ()); Context.write (new text (bytes.tostring (Kv.getkey)),//New text (Bytes.tostring (kv.getvalue  
            ())));  
            byte[] v = value.getvalue (Family.getbytes (), col.getbytes ());  
            Byte[] r = Value.getrow (); Context.write (New text (bytes.tostring (v)), new text (Bytes.tostring (r))); } public static class Reduce extends Mapreducebase implements Reducer<text, text, text , text> {public void reduce (Text key, iterator<text> values, Outputcollector<text  
                , text> output, Reporter Reporter) throws IOException {while (Values.hasnext ()) {  
            Output.collect (Key, Values.next ()); }} public static void Main (string[] args) {Configuration conf = Hbaseconfigurat  
        Ion.create ();  
            try {Job Job = new Job (conf, "hbase test");  
            Job.setjarbyclass (Mrhbase.class);  
            Scan Scan = new Scan ();  
            Scan.addcolumn (Family.getbytes (), col.getbytes ());  
           Tablemapreduceutil.inittablemapperjob ("Person", scan, Hmap.class, Text.class, Text.class, Job); Job.setoutputformatclass (Textoutputformat.class);  
            Fileoutputformat.setoutputpath (Job, New Path (args[0));  
        Job.waitforcompletion (TRUE);  
        catch (Exception e) {//TODO auto-generated catch block E.printstacktrace (); }  
      
    }  
}

Note: To add zookeeper to the Hadoop/lib directory, master&slaves

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