32 lines
949 B
Java
32 lines
949 B
Java
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.FSDataInputStream;
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import org.apache.hadoop.fs.FSDataOutputStream;
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import org.apache.hadoop.fs.FileSystem;
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import org.apache.hadoop.fs.Path;
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import java.net.URI;
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import java.util.Scanner;
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public class ReadFile {
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public static void main(String[] args) {
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try {
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Scanner sc = new Scanner(System.in);
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String filePath = '/'+sc.next();
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FileSystem fs = FileSystem.get(new URI("hdfs://master:9000"), new Configuration());
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Path srcPath = new Path(filePath);
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FSDataInputStream is = fs.open(srcPath);
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while(true) {
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String line = is.readLine();
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if(line == null) {
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break;
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}
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System.out.println(line);
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}
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is.close();
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}catch(Exception e) {
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e.printStackTrace();
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}
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}
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}
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