It seems that the server never responds to the request. My only guess is that it's related to inconsistencies with how different servers handle multi part posts. In particular, some servers seem to have trouble with content-type and transfer encoding. Please try setting both of these values to null for each of the string and file parts being posted.
Mike
On Mar 4, 2004, at 12:09 PM, Arun G wrote:
Hi folks, I am using multipart form post to upload a file. The server side is production code that we are using to upload files with other modules using multipart form post. The failure/hang is happening only with the HTTP Client code that I have pasted here. Also it is worth noting that the server does a redirect after the file is uploaded. But I don't even the response code back since it just seems to stiing there at the executemethod call. I was wondering if someone could help me figure out what may be wrong here.
The executemethod never returns. From the trace it looks like the the function HTTPParser.readRawLine does not return. Here are the last few lines of the trace and the source code that is being used. I am running this under the following JVM version :
java version "1.4.1_06" Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_06-b01) Java HotSpot(TM) Client VM (build 1.4.1_06-b01, mixed mode)
004/03/04 09:02:49:148 PST [TRACE] HttpConnection - -enter HttpConnection.flushRequestOutputStream() 004/03/04 09:02:49:158 PST [TRACE] HttpMethodBase - -enter HttpMethodBase.readResponse(HttpState, HttpConnection) 004/03/04 09:02:49:158 PST [TRACE] HttpMethodBase - -enter HttpMethodBase.readStatusLine(HttpState, HttpConnection) 004/03/04 09:02:49:158 PST [TRACE] HttpConnection - -enter HttpConnection.readLine() 004/03/04 09:02:49:158 PST [TRACE] HttpParser - -enter HttpParser.readLine() 004/03/04 09:02:49:158 PST [TRACE] HttpParser - -enter HttpParser.readRawLine()
HttpClient httpClient = new HttpClient(); MultipartPostMethod multipartPostMethod = new MultipartPostMethod(urlString); java.util.Enumeration formEnum = formVariableHash.keys(); while (formEnum.hasMoreElements()) { String name = (String) formEnum.nextElement(); String value = formVariableHash.get(name).toString(); StringPart stringPart = new StringPart(name, value); multipartPostMethod.addPart(stringPart); } try { FilePart filePart = new FilePart("file_to_upload", binaryFile.getName(), binaryFile); multipartPostMethod.addPart(filePart); if (!multipartPostMethod.validate()) { throw new FileuploadException("Unable to upload File " + uploadFileName + ". Error when posting form information"); } int responseCode = httpClient.executeMethod(multipartPostMethod); ArenaApp.getInstance().logMessage("File upload responseCode= " + responseCode); }
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