java 上传报错，求帮忙：报错

我在使用swfupload和fileupload共同完成文件的上传功能

因为提供了可以中断上传的功能，但是在中断的同时会抛出异常



org.apache.commons.fileupload.FileUploadBase$IOFileUploadException:  Processing of multipart/form-data request failed. Stream ended unexpectedly

at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:359)

at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)

at com.sini.utils.upload.UploadServlet.doPost(UploadServlet.java:43)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)

at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)

at java.lang.Thread.run(Unknown Source)

Caused by: org.apache.commons.fileupload.MultipartStream$MalformedStreamException:  Stream ended unexpectedly

at org.apache.commons.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:964)

at org.apache.commons.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:887)

at java.io.InputStream.read(Unknown Source)

at org.apache.commons.fileupload.util.Streams.copy(Streams.java:94)

at org.apache.commons.fileupload.util.Streams.copy(Streams.java:64)

at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:354)

... 16 more