Issue with File ContentType with <af:inputFile> tag

Sreevalli-Oracle

Using below tag - af:inputFile

<af:inputFile label="#{inventoryUIBundle.FILE}:" id="if1"

                                value="#{pageFlowScope.InventoryImportEditBean.inputFile}"/>the uploaded MIME ContetType for CSV File is shown as "application/vnd.ms-excel " when checked with Firefox.

For the Same file, MIMEContent Type is shown as "text\csv" when checked with Chrome \ IE

How to get same File ContentType irrespective of Browser?

Timo Hahn

User, tell us your exact JDev version, please!

You can't set the mime type when you upload a file. All you can do is to get the mime type and act on this.

Code to get the mime type:

String mime = uploadedFile.getContentType();

or you use the file extension to determine the type.

Timo

dvohra21

Specify ContentType in the af:fileDownloadActionListener.

<af:commandLink text="Download" id="cl1" partialSubmit="true">
                        <af:fileDownloadActionListener filename="#{row.DocumentName}"
                                        contentType="#{row.DocumentType}"
                                        method="#{pageFlowScope.MultipleDocumentUpload.handleDownload}"/>
                      </af:commandLink>

Timo Hahn

@dvohra21 the question is about af:inputFile, not about af:fileDownloadActionListener.

Timo

dvohra21

The af:commandButton could be added within af:inputFile.

<af:inputFile label="#{inventoryUIBundle.FILE}:" id="if1"
                                value="#{pageFlowScope.InventoryImportEditBean.inputFile}">
<af:commandButton text="Download" id="cl1" partialSubmit="true">
                        <af:fileDownloadActionListener filename="#{row.DocumentName}"
                                        contentType="#{row.DocumentType}"
                                        method="#{pageFlowScope.MultipleDocumentUpload.handleDownload}"/>
                      </af:commandButton>
</af:inputFile>

Timo Hahn

@dvohra21 have you tried this code? I don't think so. af:inputfile opens a dialog to upload a file. then your button adds an af:fileDownloadListener that is used to send a file to the client. What should this do?

dvohra21

Thanks Timo. Upload and download together won't run.

How to get same File ContentType irrespective of Browser?

Use the https://www.appservgrid.com/documentation111/api/adffaces/docs/apidocs/oracle/adf/view/faces/model/UploadedFile.html#getContentType() method. Add a valueChangeListener to inputFile. In the backing bean get the content type.

  /**Method to Upload File ,called on ValueChangeEvent of inputFile
     * @param vce
     */
    public void uploadFileVCE(ValueChangeEvent vce) {
        if (vce.getNewValue() != null) {
            //Get File Object from VC Event
            UploadedFile fileVal = (UploadedFile) vce.getNewValue();
          
            System.out.println(fileVal.getContentType());
           
        }
}

The  download functionality could be added separately to a link in table column, and with an af:fileDownloadActionListener inside the link.