Java从hdfs上读取文件中的某一行

package test;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URI;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;

public class ReadHDFS {

public static String getStringByTXT(String txtFilePath, Configuration conf)
{

StringBuffer buffer = new StringBuffer();
FSDataInputStream fsr = null;
BufferedReader bufferedReader = null;
String lineTxt = null;
try
{
FileSystem fs = FileSystem.get(URI.create(txtFilePath),conf);
fsr = fs.open(new Path(txtFilePath));
bufferedReader = new BufferedReader(new InputStreamReader(fsr));
while ((lineTxt = bufferedReader.readLine()) != null)
{
if(lineTxt.split("\t")[0].trim().equals("00067")){
return lineTxt;
}

}
} catch (Exception e)
{
e.printStackTrace();
} finally
{
if (bufferedReader != null)
{
try
{
bufferedReader.close();
} catch (IOException e)
{
e.printStackTrace();
}
}
}

return lineTxt;
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Configuration conf = new Configuration();
String txtFilePath = "hdfs://master:9000/OutPutBus/line/part-r-00000";
String mbline = getStringByTXT(txtFilePath, conf);
System.out.println(mbline);
}

}