fileDownload não baixa arquivo (primafaces)

1 resposta
java
Agr0
(...)


@ManagedBean(name="documentoTecnicoBean")
@SessionScoped
public class DocumentoTecnicoBean {

	
	 public StreamedContent FileDocumentacaoController() {  
		  
		 	FacesContext context = FacesContext.getCurrentInstance();
		 	System.out.println(context.getExternalContext().getRequestParameterMap().get("nomeDoc"));
		 	InputStream stream = this.getClass().getResourceAsStream("C:\\arquivos_tecnico_sig\\"+context.getExternalContext().getRequestParameterMap().get("nomeDoc")+".zip");  
	        file = new DefaultStreamedContent(stream, "application/zip", ""+context.getExternalContext().getRequestParameterMap().get("nomeDoc")+".zip");
	        return file;
	    }  
		
    
	public StreamedContent getFile() {
		return file;
	}	

(...)
}
<p:column width="4%">
				<p:commandButton value="Anexo" ajax="false">
						<p:fileDownload value="#{documentoTecnicoBean.file}"/>
						<f:param name="nomeDoc" value="#{documentoTecnico.nome}"/>
				</p:commandButton>
			
			</p:column>

A tela pisca, e não acontece mais nada… ¬¬’

1 Resposta

Agr0

Mudei o código do método:

public DocumentoTecnicoBean() throws FileNotFoundException{
		  
		 	FacesContext context = FacesContext.getCurrentInstance();
		 	System.out.println(context.getExternalContext().getRequestParameterMap().get("nomeDoc"));
		 	InputStream stream = this.getClass().getResourceAsStream("C:/arquivos_tecnico_sig/"+context.getExternalContext().getRequestParameterMap().get("nomeDoc")+".zip");  
	        file = new DefaultStreamedContent(stream, "application/zip", ""+context.getExternalContext().getRequestParameterMap().get("nomeDoc")+".zip");
	        
	 }

Ele não esta encontrando o arquivo, mas o arquivo esta lá. ta gerando esse erro:

java.lang.NullPointerException

at org.primefaces.component.filedownload.FileDownloadActionListener.processAction(FileDownloadActionListener.java:71)

at javax.faces.event.ActionEvent.processListener(ActionEvent.java:84)

at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:773)

at javax.faces.component.UICommand.broadcast(UICommand.java:296)

at javax.faces.component.UIData.broadcast(UIData.java:912)

at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:781)

at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1246)

at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)

at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)

at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)

at javax.faces.webapp.FacesServlet.service(FacesServlet.java:310)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at requisicao.web.filter.ConexaoHibernateFilter.doFilter(ConexaoHibernateFilter.java:34)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:344)

at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:110)

at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)

at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:98)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)

at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:95)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)

at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:79)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)

at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:55)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)

at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:36)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)

at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:188)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)

at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:106)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)

at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:356)

at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:150)

at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)

at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1001)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

at java.lang.Thread.run(Thread.java:662)
Criado 27 de janeiro de 2016
Ultima resposta 27 de jan. de 2016
Respostas 1
Participantes 1