用Servlet上传文件时出现如题异常，异常详细内容如下
HTTP Status 500 -

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type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

java.io.IOException: Corrupt form data: premature ending
com.oreilly.servlet.multipart.MultipartParser. <init>(MultipartParser.java:166)
javazoom.upload.parsing.CosMultipartParser.handleRequest(Unknown Source)
javazoom.upload.MultipartFormDataRequest. <init>(Unknown Source)
javazoom.upload.MultipartFormDataRequest. <init>(Unknown Source)
javazoom.upload.MultipartFormDataRequest. <init>(Unknown Source)
javazoom.upload.MultipartFormDataRequest. <init>(Unknown Source)
javazoom.upload.MultipartFormDataRequest. <init>(Unknown Source)
uploadServlet.doPost(uploadServlet.java:38)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)


note The full stack trace of the root cause is available in the Apache Tomcat/6.0.14 logs.


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Apache Tomcat/6.0.14

求解决方法

------解决方法--------------------------------------------------------
上传文件名有中文字符？转码