hadoop 2.2.0 通过java api 操作hdfs 报错，求大神指导

hadoop 2.2.0 通过java api 操作hdfs 报错，求大神指导

安装好hadoop 2.2.0后，通过java api 操作hdfs 报错了，详细信息如下：

2014-09-04 16:04:28,967 WARN  [main] util.NativeCodeLoader (NativeCodeLoader.java:<clinit>(62)) - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
java.io.IOException: Failed on local exception: com.google.protobuf.InvalidProtocolBufferException: Protocol message end-group tag did not match expected tag.; Host Details : local host is: "USER-20140422SO/192.168.6.33"; destination host is: "h201":9001;
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:764)
at org.apache.hadoop.ipc.Client.call(Client.java:1351)
at org.apache.hadoop.ipc.Client.call(Client.java:1300)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
at $Proxy9.create(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
at $Proxy9.create(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.create(ClientNamenodeProtocolTranslatorPB.java:227)
at org.apache.hadoop.hdfs.DFSOutputStream.newStreamForCreate(DFSOutputStream.java:1389)
at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1382)
at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1307)
at org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:384)
at org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:380)
at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
at org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:380)
at org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:324)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:905)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:886)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:783)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:772)
at TestHadoop.getFileList(TestHadoop.java:94)
at TestHadoop.main(TestHadoop.java:132)
Caused by: com.google.protobuf.InvalidProtocolBufferException: Protocol message end-group tag did not match expected tag.
at com.google.protobuf.InvalidProtocolBufferException.invalidEndTag(InvalidProtocolBufferException.java:94)
at com.google.protobuf.CodedInputStream.checkLastTagWas(CodedInputStream.java:124)
at com.google.protobuf.AbstractParser.parsePartialFrom(AbstractParser.java:202)
at com.google.protobuf.AbstractParser.parsePartialDelimitedFrom(AbstractParser.java:241)
at com.google.protobuf.AbstractParser.parseDelimitedFrom(AbstractParser.java:253)
at com.google.protobuf.AbstractParser.parseDelimitedFrom(AbstractParser.java:259)
at com.google.protobuf.AbstractParser.parseDelimitedFrom(AbstractParser.java:49)
at org.apache.hadoop.ipc.protobuf.RpcHeaderProtos$RpcResponseHeaderProto.parseDelimitedFrom(RpcHeaderProtos.java:2364)
at org.apache.hadoop.ipc.Client$Connection.receiveRpcResponse(Client.java:996)
at org.apache.hadoop.ipc.Client$Connection.run(Client.java:891)

java类

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.net.URI;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IOUtils;
public class TestHadoop {

  public static void main(String[] args) {
  {
  String uri = "hdfs://h201:9001"; //h201 为namenode 的host地址
  Configuration conf = new Configuration();
  File workaround = new File(".");
  System.getProperties().put("hadoop.home.dir",
workaround.getAbsolutePath());
  new File("./bin").mkdirs();
  try {
new File("./bin/winutils.exe").createNewFile();
  } catch (IOException e) {
e.printStackTrace();
  }
  FileSystem fs = null;
  Path path = new Path("/user/root/");
  try {
fs = FileSystem.get(URI.create(uri), conf);
FileStatus[] FileStatus=fs.listStatus(path);// fs.listStatus 就报错了，fs的相关操作都一样
  } catch (Exception e) {
e.printStackTrace();
  }

}

}

项目导入的jar包：
hadoop-2.2.0/share/hadoop/common/*.jar
hadoop-2.2.0/share/hadoop/common/lib/*.jar
hadoop-2.2.0/share/hadoop/hdfs/*.jar
hadoop-2.2.0/share/hadoop/mapreduce/*.jar
hadoop-2.2.0/share/hadoop/yarn/*.jar