上传本地文件到HDFS
2015-10-30 19:44
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源代码:
还需要一个jar包:http://download.csdn.net/detail/lixiaolun/9227851
如果报Configuration错误,需要再下一个commons-logging.jar。网上随便就能搜到。
还有现成的java代码,不需要导入jar报:http://download.csdn.net/detail/lixiaolun/9227879
import java.io.IOException; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.FileStatus; import org.apache.hadoop.fs.FileSystem; import org.apache.hadoop.fs.Path; public class UploadFile { public static void main(String[] args) throws IOException { Configuration conf = new Configuration(); //conf.addResource(new Path("conf/hadoop-default.xml")); //conf.addResource(new Path("conf/hadoop-site.xml")); //通过conf来指定要操作的HDFS FileSystem hdfs = FileSystem.get(conf); //要上传的源文件所在路径 Path src = new Path("D:\\v.txt"); //hadoop文件系统的跟目录 Path dst = new Path("/"); //将源文件copy到hadoop文件系统 hdfs.copyFromLocalFile(src, dst); System.out.println("上传到"+conf.get("fs.default.name")); FileStatus files[] = hdfs.listStatus(dst); for(int i=0;i<files.length;i++) { System.out.println(files[i].getPath()); } } }
还需要一个jar包:http://download.csdn.net/detail/lixiaolun/9227851
如果报Configuration错误,需要再下一个commons-logging.jar。网上随便就能搜到。
还有现成的java代码,不需要导入jar报:http://download.csdn.net/detail/lixiaolun/9227879
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