要求：读取hdfs的文件/ggg1.txt到控制台

代码如下：会由乱码！！！

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IOUtils;
import org.junit.Test;

import java.io.*;
import java.net.URI;
import java.net.URISyntaxException;

@Test
    public void test1() throws IOException, URISyntaxException, InterruptedException {

        Configuration conf = new Configuration();

        FileSystem fs = FileSystem.get(new URI("hdfs://hadoop103:9000"), conf, "root");

        FSDataInputStream fis = fs.open(new Path("/ggg1.txt"));


        FileOutputStream fos = new FileOutputStream(new File("C:\\Users\\管健雄\\Desktop\\files\\ggj.txt"), true);

        String line;
        while ((line = fis.readLine()) != null) {
            System.out.println(line);
        }
        fos.close();
        fis.close();
        fs.close();

    }

更改代码如下

    @Test
    public void test2() throws URISyntaxException, IOException, InterruptedException {

        Configuration conf = new Configuration();

        FileSystem fs = FileSystem.get(new URI("hdfs://hadoop103:9000"), conf, "root");

        FSDataInputStream fis = fs.open(new Path("/ggg1.txt"));

        BufferedReader bf = new BufferedReader(new InputStreamReader(fis));

        String line;
        while ((line = bf.readLine()) != null) {
            System.out.println(line);
        }
    }

 未出现乱码