java.io.IOException:权限被拒绝，不允许使用Xuggle

Question

我正尝试在服务器上运行an gang5.4，但出现了一个异常，我不知道该如何处理。相同的代码可以在另外两个服务器上正常工作，也可以在同一台服务器上的另一个应用程序(Playframework)下运行。它在另一个应用程序下运行的事实使我认为这可能是错误所在。

错误的根源似乎是Xuggle试图创建一个临时文件，但访问被拒绝。我怎么才能知道这是哪里呢？如前所述，这可能是其他安装已经使用过的位置，并且是在另一个用户帐户下运行的。

这是堆栈跟踪：

2012-05-04 08:49:01,985 ERROR ~ could not create temp file: {}
java.io.IOException: Permission denied
    at java.io.UnixFileSystem.createFileExclusively(Native Method) ~[na:1.6.0_26]
    at java.io.File.checkAndCreate(File.java:1704) ~[na:1.6.0_26]
    at java.io.File.createTempFile(File.java:1792) ~[na:1.6.0_26]
    at com.xuggle.ferry.JNILibrary.unpackLibrary(JNILibrary.java:274) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.ferry.JNILibrary.loadFromClasspath(JNILibrary.java:195) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.ferry.JNILibrary.load(JNILibrary.java:176) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.ferry.JNILibrary.load(JNILibrary.java:158) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.ferry.FerryJNI.<clinit>(FerryJNI.java:16) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.ferry.Ferry.<clinit>(Ferry.java:25) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.xuggler.XugglerJNI.<clinit>(XugglerJNI.java:19) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.xuggler.IContainer.<clinit>(IContainer.java:1622) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.mediatool.MediaReader.<init>(MediaReader.java:137) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.mediatool.ToolFactory.makeReader(ToolFactory.java:77) [xuggle-xuggler-5.4.jar:5.4.0]
    at logic.server.MediaCoder.createEncodingJobs(MediaCoder.java:39) [idoms-server:na]
    at controllers.FileCopyJob$ProgressListener.actionPerformed(FileCopyJob.java:127) [idoms-server:na]
    at controllers.FileCopyJob$DownloadCountingOutputStream.afterWrite(FileCopyJob.java:84) [idoms-server:na]
    at org.apache.commons.io.output.ProxyOutputStream.write(ProxyOutputStream.java:92) [commons-io-2.0.1.jar:2.0.1]
    at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1263) [commons-io-2.0.1.jar:2.0.1]
    at org.apache.commons.io.IOUtils.copy(IOUtils.java:1236) [commons-io-2.0.1.jar:2.0.1]
    at controllers.FileCopyJob.doJob(FileCopyJob.java:58) [idoms-server:na]
    at play.jobs.Job.doJobWithResult(Job.java:50) [play-1.2.4.jar:na]
    at play.jobs.Job.call(Job.java:146) [play-1.2.4.jar:na]
    at play.jobs.Job$1.call(Job.java:66) [play-1.2.4.jar:na]
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) [na:1.6.0_26]
    at java.util.concurrent.FutureTask.run(FutureTask.java:138) [na:1.6.0_26]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98) [na:1.6.0_26]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206) [na:1.6.0_26]
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [na:1.6.0_26]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [na:1.6.0_26]
    at java.lang.Thread.run(Thread.java:662) [na:1.6.0_26]
2012-05-04 08:49:02,003 ERROR ~ could not create temp file: {}
java.io.IOException: Permission denied
    at java.io.UnixFileSystem.createFileExclusively(Native Method) ~[na:1.6.0_26]
    at java.io.File.checkAndCreate(File.java:1704) ~[na:1.6.0_26]
    at java.io.File.createTempFile(File.java:1792) ~[na:1.6.0_26]
    at com.xuggle.ferry.JNILibrary.unpackLibrary(JNILibrary.java:274) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.ferry.JNILibrary.loadFromClasspath(JNILibrary.java:195) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.ferry.JNILibrary.load(JNILibrary.java:176) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.ferry.JNILibrary.load(JNILibrary.java:158) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.ferry.FerryJNI.<clinit>(FerryJNI.java:16) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.ferry.Ferry.<clinit>(Ferry.java:25) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.xuggler.XugglerJNI.<clinit>(XugglerJNI.java:19) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.xuggler.IContainer.<clinit>(IContainer.java:1622) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.mediatool.MediaReader.<init>(MediaReader.java:137) [xuggle-xuggler-5.4.jar:5.4.0]
    at com.xuggle.mediatool.ToolFactory.makeReader(ToolFactory.java:77) [xuggle-xuggler-5.4.jar:5.4.0]
    at logic.server.MediaCoder.createEncodingJobs(MediaCoder.java:39) [idoms-server:na]
    at controllers.FileCopyJob$ProgressListener.actionPerformed(FileCopyJob.java:127) [idoms-server:na]
    at controllers.FileCopyJob$DownloadCountingOutputStream.afterWrite(FileCopyJob.java:84) [idoms-server:na]
    at org.apache.commons.io.output.ProxyOutputStream.write(ProxyOutputStream.java:92) [commons-io-2.0.1.jar:2.0.1]
    at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1263) [commons-io-2.0.1.jar:2.0.1]
    at org.apache.commons.io.IOUtils.copy(IOUtils.java:1236) [commons-io-2.0.1.jar:2.0.1]
    at controllers.FileCopyJob.doJob(FileCopyJob.java:58) [idoms-server:na]
    at play.jobs.Job.doJobWithResult(Job.java:50) [play-1.2.4.jar:na]
    at play.jobs.Job.call(Job.java:146) [play-1.2.4.jar:na]
    at play.jobs.Job$1.call(Job.java:66) [play-1.2.4.jar:na]
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) [na:1.6.0_26]
    at java.util.concurrent.FutureTask.run(FutureTask.java:138) [na:1.6.0_26]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98) [na:1.6.0_26]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206) [na:1.6.0_26]
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [na:1.6.0_26]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [na:1.6.0_26]
    at java.lang.Thread.run(Thread.java:662) [na:1.6.0_26]
2012-05-04 08:49:02,015 ERROR ~ Could not load library: xuggle; version: 5; Visit http://www.xuggle.com/xuggler/faq/ to find common solutions to this problem
08:49:02,115 ERROR ~ 

@6a91glkdf
Error during job execution (controllers.FileCopyJob)

Oops: UnsatisfiedLinkError
An unexpected error occured caused by exception UnsatisfiedLinkError: no xuggle in java.library.path

play.exceptions.UnexpectedException: Unexpected Error
    at play.Invoker$Invocation.onException(Invoker.java:244)
    at play.jobs.Job.onException(Job.java:124)
    at play.jobs.Job.call(Job.java:163)
    at play.jobs.Job$1.call(Job.java:66)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.UnsatisfiedLinkError: no xuggle in java.library.path
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1738)
    at java.lang.Runtime.loadLibrary0(Runtime.java:823)
    at java.lang.System.loadLibrary(System.java:1028)
    at com.xuggle.ferry.JNILibraryLoader.loadLibrary0(JNILibraryLoader.java:268)
    at com.xuggle.ferry.JNILibraryLoader.loadLibrary(JNILibraryLoader.java:171)
    at com.xuggle.ferry.JNILibrary.load(JNILibrary.java:161)
    at com.xuggle.ferry.FerryJNI.<clinit>(FerryJNI.java:16)
    at com.xuggle.ferry.Ferry.<clinit>(Ferry.java:25)
    at com.xuggle.xuggler.XugglerJNI.<clinit>(XugglerJNI.java:19)
    at com.xuggle.xuggler.IContainer.<clinit>(IContainer.java:1622)
    at com.xuggle.mediatool.MediaReader.<init>(MediaReader.java:137)
    at com.xuggle.mediatool.ToolFactory.makeReader(ToolFactory.java:77)
    at logic.server.MediaCoder.createEncodingJobs(MediaCoder.java:39)
    at controllers.FileCopyJob$ProgressListener.actionPerformed(FileCopyJob.java:127)
    at controllers.FileCopyJob$DownloadCountingOutputStream.afterWrite(FileCopyJob.java:84)
    at org.apache.commons.io.output.ProxyOutputStream.write(ProxyOutputStream.java:92)
    at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1263)
    at org.apache.commons.io.IOUtils.copy(IOUtils.java:1236)
    at controllers.FileCopyJob.doJob(FileCopyJob.java:58)
    at play.jobs.Job.doJobWithResult(Job.java:50)
    at play.jobs.Job.call(Job.java:146)
    ... 8 more

Answer 1

那么问题就是用来存储二进制文件的临时目录。因为另一个实例创建了这个临时位置，所以另一个用户名下的第二个进程没有访问权限。开发人员现在已经意识到了这个问题。删除临时目录或授予权限可解决此问题

Answer 2

虽然这个问题已经很老了，而且xuggle已经被弃用了，但在看了这里的评论后，我仍然想向其他人展示我是如何解决这个问题的。

用户可以设置java.io.tmpdir属性，而不是删除文件夹或更改其权限。

例如，如下所示：

java -Djava.io.tmpdir="~/custom/tempdir/" HelloWorld

背景：

正如来自另一个答案的评论所建议的那样，追溯问题的根源到创建所讨论的临时文件夹的函数，表明java使用了一个可以自定义的默认位置。

public static File createTempFile(String prefix,
                                  String suffix,
                                  File directory)
                           throws IOException

使用给定的前缀和后缀字符串在指定的目录中创建一个新的空文件，以生成其名称。如果此方法成功返回，则可以保证：

1. 在调用此方法之前，由返回的抽象路径名表示的文件不存在，并且
2. 在虚拟机的当前调用中，此方法及其任何变体都不会再次返回相同的抽象路径名。

..。

如果目录参数为null，则将使用系统相关的默认临时文件目录。默认的临时文件目录由系统属性java.io.tmpdir指定。在UNIX系统上，该属性的默认值通常是"/tmp“或"/var/tmp"；在Microsoft Windows系统上，它通常是"C:\WINNT\TEMP”。当Java虚拟机被调用时，可以为该系统属性赋予不同的值，但是对该属性的编程更改不保证对该方法所使用的临时目录有任何影响。

请参见：

1. JavaDoc createTempFile(String, String, File)
2. Old Google Groups discussion