JFinal上传图片出现unexpected end of part报错是什么原因？

Question

java.lang.RuntimeException: java.io.IOException: unexpected end of part

 at com.jfinal.upload.MultipartRequest.wrapMultipartRequest(MultipartRequest.java:117)

 at com.jfinal.upload.MultipartRequest.<init>(MultipartRequest.java:68)

 at com.jfinal.core.Controller.getFiles(Controller.java:699)

 at com.demo.validator.UploadValidator.validate(UploadValidator.java:16)

 at com.jfinal.validate.Validator.intercept(Validator.java:66)

 at com.jfinal.aop.Invocation.invoke(Invocation.java:65)

 at com.jfinal.core.ActionHandler.handle(ActionHandler.java:74)

 at com.jfinal.core.JFinalFilter.doFilter(JFinalFilter.java:72)

 at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)

 at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)

 at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)

 at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:560)

 at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)

 at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)

 at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)

 at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)

 at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)

 at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)

 at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)

 at org.eclipse.jetty.server.Server.handle(Server.java:365)

 at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)

 at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:937)

 at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:998)

 at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:856)

 at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)

 at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)

 at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628)

 at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)

 at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)

 at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)

 at java.lang.Thread.run(Thread.java:745)

Caused by: java.io.IOException: unexpected end of part

 at com.oreilly.servlet.multipart.PartInputStream.fill(PartInputStream.java:100)

 at com.oreilly.servlet.multipart.PartInputStream.read(PartInputStream.java:195)

 at com.oreilly.servlet.multipart.PartInputStream.read(PartInputStream.java:156)

 at com.oreilly.servlet.multipart.FilePart.write(FilePart.java:208)

 at com.oreilly.servlet.multipart.FilePart.writeTo(FilePart.java:167)

 at com.oreilly.servlet.MultipartRequest.<init>(MultipartRequest.java:271)

 at com.jfinal.upload.MultipartRequest.wrapMultipartRequest(MultipartRequest.java:101)

 ... 30 more

Answer 1

遇到同样的问题，求解答。。