I am generating a xml file using JAXB but at present file is generated at specified location,How can i use a browse button to specify the location of folder to save the generated file. Have tried with input type="file" of HTML but it is useful for uploading the file.Want it to do from rich faces only.
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Just write it directly to the HTTP response along with a Content-Disposition header with a value of attachment. This will force the browser to pop a Save As dialogue.
So, essentially all you need to do is to marshal the XML tree straight to the output stream of the HTTP response instead of the output stream of the file after having set the proper headers.
FacesContext fc = FacesContext.getCurrentInstance();
ExternalContext ec = fc.getExternalContext();
// ...
ec.responseReset(); // Make sure the response is clean and crisp.
ec.setResponseContentType("text/xml"); // Tell browser which application to associate with obtained response.
ec.setResponseCharacterEncoding("UTF-8"); // Tell browser how to decode the characters in obtanied response.
ec.setResponseHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\""); // Tell browser to pop "Save As" dialogue to save obtained response on disk.
marshaller.marshal(model, ec.getResponseOutputStream()); // Look ma, just marshal JAXB model straight to the response body!
fc.responseComplete(); // Tell JSF that we've already handled the response ourselves so that it doesn't need to navigate.
Note: downloading a file via ajax is not possible. Remember to turn off the ajax feature of the RichFaces/Ajax4jsf command component invoking this method, if any.
