Write an XML document to a browser's response stream and cause the browser to display a "Save As" dialog.
Consider the following download()
method:
HttpServletResponse response = getResponse();
BufferedWriter bw = new BufferedWriter( new OutputStreamWriter(
response.getOutputStream() ) );
String filename = "domain.xml";
String mimeType = new MimetypesFileTypeMap().getContentType( filename );
// Prints "application/octet-stream"
System.out.println( "mimeType: " + mimeType );
// response.setContentType( "text/xml;charset=UTF-8" );
response.setContentType( mimeType );
response.setHeader( "Content-Disposition", "attachment;filename="
+ filename );
bw.write( getDomainDocument() );
bw.flush();
bw.close();
In Firefox, the XML content is displayed in the browser window. In IE 7, the XML content is not displayed -- you have to view the document source. Neither situation is the desired result.
The web page uses the following code for the button:
<a4j:commandButton action="#{domainContent.download}" value="Create Domain" reRender="error" />
The XML that is generated does not start with <?xml version="1.0"?>
, rather the XML content resembles:
<schema xmlns="http://www.jaspersoft.com/2007/SL/XMLSchema" version="1.0">
<items>
<item description="EDT Class Code" descriptionId="" label="EDT Class Code" labelId="" resourceId="as_pay_payrolldeduction.edtclass"/>
</items>
<resources>
<jdbcTable datasourceId="JNDI" id="as_pay_payrolldeduction" tableName="as_pay.payrolldeduction">
<fieldList>
<field id="payamount" type="java.math.BigDecimal"/>
</fieldList>
</jdbcTable>
</resources>
</schema>
Note the following line of code:
response.setHeader( "Content-Disposition", "attachment;filename=" + filename );
Using <a4j:commandButton ... />
is the problem; a regular <h:commandButton .../>
performs as expected. Using the <h:commandBUtton .../>
prevents the <a4j:outputPanel .../>
from refreshing any error messages.
Related Seam Message.
The following mime types do not trigger the "Save As" dialog:
"application/octet-stream"
"text/xml"
"text/plain"
What changes will cause the a4j:commandButton
to trigger a "Save As" dialog box so that the user is prompted to save the XML file (as domain.xml
)?
Thank you.
neither use inline; nor attachment; just use
response.setContentType("text/xml");
response.setHeader( "Content-Disposition", "filename=" + filename );
or
response.setHeader( "Content-Disposition", "filename=\"" + filename + "\"" );
or
response.setHeader( "Content-Disposition", "filename=\"" +
filename.substring(0, filename.lastIndexOf('.')) + "\"");