通过Hadoop URL读取数据

package com.lcy.hadoop.file;

import java.io.InputStream;
import java.net.URL;
import org.apache.hadoop.fs.FsUrlStreamHandlerFactory;
import org.apache.hadoop.io.IOUtils;

public class URLCat {

    static{
        URL.setURLStreamHandlerFactory(new FsUrlStreamHandlerFactory());
    }

    public static void main(String[] args) throws Exception {
        // TODO Auto-generated method stub
        InputStream in=null;
        try{
            in=new URL(args[0]).openStream();
            IOUtils.copyBytes(in, System.out, 4096,false);
        }finally{
            IOUtils.closeStream(in);
        }
    }
}