java.net.SocketException提问

同志们最近做一个文件传输，调用的WCF服务，每次运行总出现下列错误，希望高手帮助，在线的等Exception in thread "main" javax.xml.ws.WebServiceException: java.net.SocketException: Unexpected end of file from server
at com.sun.xml.ws.transport.http.client.HttpClientTransport.checkResponseCode(HttpClientTransport.java:238)
at com.sun.xml.ws.transport.http.client.HttpTransportPipe.process(HttpTransportPipe.java:149)
at com.sun.xml.ws.transport.http.client.HttpTransportPipe.processRequest(HttpTransportPipe.java:86)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:595)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:554)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:539)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:436)
at com.sun.xml.ws.client.Stub.process(Stub.java:248)
at com.sun.xml.ws.client.sei.SEIStub.doProcess(SEIStub.java:135)
at com.sun.xml.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:109)
at com.sun.xml.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:89)
at com.sun.xml.ws.client.sei.SEIStub.invoke(SEIStub.java:118)
at $Proxy33.uploadFile(Unknown Source)
at myOper.AttachTrans.main(AttachTrans.java:47)
Caused by: java.net.SocketException: Unexpected end of file from server
at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:769)
at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:795)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:632)
at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:766)
at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:795)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:632)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1002)
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:373)
at com.sun.xml.ws.transport.http.client.HttpClientTransport.checkResponseCode(HttpClientTransport.java:201)
... 13 more