10:42 a.m.
Hi,
I was trying to use a typical seam backing bean for handling a file download. So i used
the many examples posted on this forum. sthg like :
| @Stateful
| @Scope(EVENT)
| @Name("editWebdoc")
| public class EditWebdocAction implements EditWebdoc {
| @In(required=true)
| private Client client;
|
|
| @In(required=false)
| private Webdoc webdoc;
|
| @In(value = "#{facesContext}")
| private FacesContext mFacesContext;
|
| ....
| public void getDocFichier(Webdoc webdoc) {
| if (webdoc == null) {
| return;
| }
| byte[] data = webdoc.getDocFicData();
| HttpServletResponse response = (HttpServletResponse)
mFacesContext.getExternalContext().getResponse();
| response.setContentType("application/pdf");
| response.setContentLength(data.length);
| response.addHeader("Content-disposition", "attachment;
filename=\"" + webdoc.getDocFicNom() + "\"");
|
| try {
| ServletOutputStream responseOutputStream = response.getOutputStream();
| responseOutputStream.write(webdoc.getDocFicData());
| responseOutputStream.flush();
| responseOutputStream.close();
| mFacesContext.responseComplete();
| response.flushBuffer();
| } catch (IOException ioe) {
| log.error("IOException lors de la restitution du document webdoc", ioe);
| }
|
AND
<s:fileUpload id="fichierPDF"
| data="#{webdoc.docFicData}"
| accept="application/PDF"
| contentType="#{editWebdoc.fichierContentType}"
| fileName="#{webdoc.docFicNom}"
| fileSize="#{editWebdoc.fichierTaille}" />
But i kept getting the following error :
|
| 17:35:40,872 ERROR [[Faces Servlet]] "Servlet.service()" pour la servlet
Faces Servlet a généré une exception
| java.lang.NullPointerException
| at java.util.regex.Matcher.getTextLength(Matcher.java:1127)
| at java.util.regex.Matcher.reset(Matcher.java:284)
| at java.util.regex.Matcher.<init>(Matcher.java:205)
| at java.util.regex.Pattern.matcher(Pattern.java:879)
| at org.ajax4jsf.webapp.ParserConfig.getParser(ParserConfig.java:28)
| at
org.ajax4jsf.webapp.ConfigurableXMLFilter.getParser(ConfigurableXMLFilter.java:109)
| at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:259)
| at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
| at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
| at
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
| at
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:150)
| at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
| at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
| at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
| at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
| at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
| at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
| at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
| at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
| at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
| at
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
| at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
| at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
| at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
| at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
| at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
| at java.lang.Thread.run(Thread.java:595)
|
|
So i thought it was this stupid ajax4jsf filter and i switched the force-parser attribute
to false hence ending up to this in components.xml :
|
| <web:ajax4jsf-filter force-parser="true"
| enable-cache="true"
| log4j-init-file="custom-log4j.xml"
| url-pattern="*.seam"/>
|
|
The pdf download now works, but of course the ajax validation w/ hibernate validator is
not working in the other pages of my application.
Can't we have both ajax-hibernate validation AND download file functionnality within
the same application?
Is there a way to bypass ajax filter for certain actions?
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