文件上传问题

[jiulingchen]

为什么上传txt类型的文件可以，而上传其他类型的例如pdf、doc、jpg类型的文件就提示异常信息 org.jboss.netty.handler.codec.http.multipart.HttpPostRequestDecoder$ErrorDataDecoderException: java.io.IOException: No such file or directory at org.jboss.netty.handler.codec.http.multipart.HttpPostRequestDecoder.readFileUploadByteMultipart(HttpPostRequestDecoder.java:1697) at org.jboss.netty.handler.codec.http.multipart.HttpPostRequestDecoder.getFileUpload(HttpPostRequestDecoder.java:1162) at org.jboss.netty.handler.codec.http.multipart.HttpPostRequestDecoder.decodeMultipart(HttpPostRequestDecoder.java:814) at org.jboss.netty.handler.codec.http.multipart.HttpPostRequestDecoder.parseBodyMultipart(HttpPostRequestDecoder.java:717) at org.jboss.netty.handler.codec.http.multipart.HttpPostRequestDecoder.parseBody(HttpPostRequestDecoder.java:404) at org.jboss.netty.handler.codec.http.multipart.HttpPostRequestDecoder.offer(HttpPostRequestDecoder.java:355) at org.lyx.file.server.support.FileServerHandler.messageReceived(FileServerHandler.java:133) at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:560) at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:787) at org.jboss.netty.handler.stream.ChunkedWriteHandler.handleUpstream(ChunkedWriteHandler.java:142) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:560) at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:787) at org.jboss.netty.handler.codec.http.HttpContentEncoder.messageReceived(HttpContentEncoder.java:69) at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:88) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:560) at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:787) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296) at org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:459) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:536) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:435) at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:560) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:555) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255) at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:107) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:312) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:88) at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: java.io.IOException: No such file or directory at java.io.UnixFileSystem.createFileExclusively(Native Method) at java.io.File.createTempFile(File.java:2024) at org.jboss.netty.handler.codec.http.multipart.AbstractDiskHttpData.tempFile(AbstractDiskHttpData.java:86) at org.jboss.netty.handler.codec.http.multipart.AbstractDiskHttpData.addContent(AbstractDiskHttpData.java:136) at org.jboss.netty.handler.codec.http.multipart.MixedFileUpload.addContent(MixedFileUpload.java:59) at org.jboss.netty.handler.codec.http.multipart.HttpPostRequestDecoder.readFileUploadByteMultipart(HttpPostRequestDecoder.java:1692) ... 35 more