In case a) I am not sure about session. I need to obtain session in start page c) Looks better way, but I affraid about bugs is events. I have found one https://issues.apache.org/jira/browse/MYFACES-2939
2010/10/18 Werner Punz <[email protected]> > Hi this seems to be a jetty or GAE bug if you ask me probably causes by the > combination of already rendering something and then causing a redirect > within the rendering (I am not sure if this is even a bug or maybe some > expected behavior), > but try following, since it happens during render time (due to the getter) > try to shift it away from the render time to something in prerender, you can > use following mechanisms to achieve that > > a) a servlet filter which issues the redirect > b) a phase listern > c) a system event, for instance a prerender system event > > It might resolve this issue. > > Werner > > Am 17.10.10 18:56, schrieb Nikolay Rychkov: > >> *Hello Sirs,* >> >> * >> * >> >> *In my experimental project **http://www.agost.ru*<http://www.agost.ru>* >> I >> >> use redirection to main page >> **http://www.agost.ru/to.do*<http://www.agost.ru/to.do> >> >> * .* >> >> *I have to do it this way because user should obtain session. I use >> PrimeFaces to ajax login that does not work without session. * >> >> * >> * >> >> *Sources:* >> >> Index.xhtml: >> >> <?xml version="1.0" encoding="UTF-8"?> >> >> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" >> >> "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";> >> >> <html xmlns="http://www.w3.org/1999/xhtml"; xmlns:h=" >> http://java.sun.com/jsf/html";> >> >> <h:head> >> >> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> >> >> <title</title> >> >> </h:head> >> >> <h:body> >> >> #{redirectBean.redirect} >> >> </h:body> >> >> </html> >> >> RedirectBean: >> >> >> >> import javax.faces.bean.ManagedBean; >> >> import javax.faces.bean.RequestScoped; >> >> import javax.faces.context.FacesContext; >> >> import java.io.IOException; >> >> @ManagedBean >> >> @RequestScoped >> >> public class RedirectBean { >> >> public String getRedirect(){ >> >> try { >> >> >> FacesContext.getCurrentInstance().getExternalContext().redirect("to.do"); >> >> >> >> } catch (IOException e) { >> >> e.printStackTrace(); >> >> } >> >> return ""; >> >> } >> >> } >> >> Part of web.xml: >> >> <welcome-file-list> >> >> <welcome-file>index.do</welcome-file> >> >> </welcome-file-list> >> >> <context-param> >> >> <param-name>javax.faces.DEFAULT_SUFFIX</param-name> >> >> <param-value>.xhtml</param-value> >> >> </context-param> >> >> <servlet-mapping> >> >> <servlet-name>Faces Servlet</servlet-name> >> >> <url-pattern>*.do</url-pattern> >> >> </servlet-mapping> >> >> >> >> *Redirection works, but every time I have this error in log:* >> >> * >> * >> >> java.lang.IllegalStateException: STREAM >> >> at org.mortbay.jetty.Response.getWriter(Response.java:616) >> >> at >> >> javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:115) >> >> at >> >> org.apache.myfaces.context.servlet.ServletExternalContextImpl.getResponseOutputWriter(ServletExternalContextImpl.java:184) >> >> at >> >> org.apache.myfaces.shared_impl.view.JspViewDeclarationLanguageBase.renderView(JspViewDeclarationLanguageBase.java:154) >> >> at >> >> org.apache.myfaces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:263) >> >> at >> >> org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:85) >> >> at >> org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:239) >> >> at >> javax.faces.webapp.FacesServlet.service(FacesServlet.java:191) >> >> at >> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) >> >> at >> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390) >> >> at >> >> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) >> >> at >> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) >> >> at >> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) >> >> at >> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) >> >> at >> >> com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:70) >> >> at >> org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:327) >> >> at >> org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126) >> >> at >> >> com.google.appengine.tools.development.StaticFileUtils.serveWelcomeFileAsForward(StaticFileUtils.java:80) >> >> at >> >> com.google.appengine.tools.development.LocalResourceFileServlet.maybeServeWelcomeFile(LocalResourceFileServlet.java:247) >> >> at >> >> com.google.appengine.tools.development.LocalResourceFileServlet.doGet(LocalResourceFileServlet.java:120) >> >> at >> javax.servlet.http.HttpServlet.service(HttpServlet.java:693) >> >> at >> javax.servlet.http.HttpServlet.service(HttpServlet.java:806) >> >> at >> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) >> >> at >> >> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) >> >> at >> >> com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:58) >> >> at >> >> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) >> >> at >> >> com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) >> >> at >> >> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) >> >> at >> >> com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:122) >> >> at >> >> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) >> >> at >> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) >> >> at >> >> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) >> >> at >> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) >> >> at >> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) >> >> at >> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) >> >> at >> >> com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:70) >> >> at >> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> >> at >> >> com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:349) >> >> at >> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> >> at org.mortbay.jetty.Server.handle(Server.java:326) >> >> at >> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) >> >> at >> >> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) >> >> at >> org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547) >> >> at >> org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) >> >> at >> org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) >> >> at >> >> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) >> >> at >> >> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) >> >> >> *Is that a bug or I do something wrong?* >> >> *Thanks in advance* >> >> > >
