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GWT fileuploading error

Arun Raai
Greenhorn

Joined: Mar 12, 2009
Posts: 5
Hi,

I am also getting following error/exception...

SEVERE: Exception while dispatching incoming RPC call
javax.servlet.ServletException: Content-Type was 'multipart/form-data;
boundary=---------------------------24626113235537'. Expected 'text/x-gwt-rpc'.
at
com.google.gwt.user.server.rpc.RPCServletUtils.checkContentType(RPCServletUtils.java:318)
at
com.google.gwt.user.server.rpc.RPCServletUtils.readContentAsUtf8(RPCServletUtils.java:135)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.readContent(RemoteServiceServlet.java:335)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:77)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


-------------
my code
-------------

1. GWT widget: FormHandle

RootPanel rootPanel = RootPanel.get();

final FormPanel form = new FormPanel();
rootPanel.add(form);
form.setAction(GWT.getModuleBaseURL()+"MyFormHandler");
form.setEncoding(FormPanel.ENCODING_MULTIPART);
form.setMethod(FormPanel.METHOD_POST);
.........
.........
.........

panel.add(new Button("Submit", new ClickListener() {
public void onClick(Widget sender) {
form.submit();
}
}));

.........
.........
.........

form.addFormHandler(new FormHandler() {
public void onSubmit(FormSubmitEvent event) {
service.fileUpload(new AsyncCallback(){
public void onFailure(Throwable caught) {
Window.alert("FileUpload Failure!!");
}

public void onSuccess(Object result) {
Window.alert("FileUpload Success!!");
}});
event.setCancelled(true);
}

public void onSubmitComplete(FormSubmitCompleteEvent event) {
Window.alert(event.getResults());
}
});

RootPanel.get().add(form)

2. Servlet:: MyFormHandlerImpl

public class MyFormHandlerImpl extends RemoteServiceServlet implements MyFormHandler {

/**
*
*/
private static final long serialVersionUID = 1L;

@Override
public void fileUpload() {
System.out.println("0");
HttpServletRequest request = super.getThreadLocalRequest();
HttpServletResponse response = super.getThreadLocalResponse();

boolean isMultiPart =
FileUpload.isMultipartContent(request);//isMultipartContent(request)

String parentPath ="d:\\";


if (isMultiPart) {
System.out.println("3");
DiskFileUpload upload = new DiskFileUpload();
try {
List items = upload.parseRequest(request);
Iterator it = items.iterator();
while (it.hasNext()) {
FileItem item = (FileItem) it.next();
if(!item.isFormField()){
File fullFile = new File(item.getName());
File savedFile = new File(parentPath,fullFile.getName());
item.write(savedFile);
}
}
} catch (FileUploadException fUE) {
System.out.println("file not found");
} catch (Exception e){
System.out.println("unknown exception");
}
}

}
}


Can anybody tell me what i am missing here?
what could be done to resolve this error?

Thanks in advance for your help

Arun.
 
Don't get me started about those stupid light bulbs.
 
subject: GWT fileuploading error