拷贝HDFS文件到本地：下载的时候报错了，尝试了各种方式都搞不定

  @Test
    public void copyToLocalFile() throws Exception {

    
      
        Path src = new Path("/hdfsapi/test/d.txt");
      
        Path dst = new Path("C:\\Users\\10737\\Desktop\\mingpian\\");
        fileSystem.copyToLocalFile(src, dst);

    }

报错：

com.imooc.bigdata.hadoop.hdfs.HDFSApp,copyToLocalFile
--------setUp---------
--------tearDown---------

java.lang.UnsatisfiedLinkError: org.apache.hadoop.io.nativeio.NativeIO$Windows.createFileWithMode0(Ljava/lang/String;JJJI)Ljava/io/FileDescriptor;

	at org.apache.hadoop.io.nativeio.NativeIO$Windows.createFileWithMode0(Native Method)
	at org.apache.hadoop.io.nativeio.NativeIO$Windows.createFileOutputStreamWithMode(NativeIO.java:559)
	at org.apache.hadoop.fs.RawLocalFileSystem$LocalFSFileOutputStream.<init>(RawLocalFileSystem.java:227)
	at org.apache.hadoop.fs.RawLocalFileSystem$LocalFSFileOutputStream.<init>(RawLocalFileSystem.java:217)
	at org.apache.hadoop.fs.RawLocalFileSystem.createOutputStreamWithMode(RawLocalFileSystem.java:315)
	at org.apache.hadoop.fs.RawLocalFileSystem.create(RawLocalFileSystem.java:303)
	at org.apache.hadoop.fs.RawLocalFileSystem.create(RawLocalFileSystem.java:336)
	at org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSOutputSummer.<init>(ChecksumFileSystem.java:391)
	at org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:454)
	at org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:433)
	at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:926)
	at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:907)
	at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:804)
	at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:368)
	at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:341)
	at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:292)
	at org.apache.hadoop.fs.FileSystem.copyToLocalFile(FileSystem.java:2123)
	at org.apache.hadoop.fs.FileSystem.copyToLocalFile(FileSystem.java:2092)
	at org.apache.hadoop.fs.FileSystem.copyToLocalFile(FileSystem.java:2068)
	at com.imooc.bigdata.hadoop.hdfs.HDFSApp.copyToLocalFile(HDFSApp.java:132)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)


Process finished with exit code -1