Upload com primefaces ajuda

<filter>  
<filter-name>PrimeFaces FileUpload Filter</filter-name>  
<filter-class> org.primefaces.webapp.filter.FileUploadFilter</filter-class>  
</filter>  
<filter-mapping>  
<filter-name>PrimeFaces FileUpload Filter</filter-name>  
<servlet-name>Faces Servlet</servlet-name>  
</filter-mapping>

INFO: Instantiated an instance of org.hibernate.validator.engine.resolver.JPATraversableResolver.

AVISO: JSF1091: Nenhum tipo de mime pôde ser encontrado para o arquivo dynamiccontent.  Para resolver isso, adicione um mapeamento de mime-type ao web.xml do aplicativo.

INFO: Skipping call to libraryExists().  Please set context-param com.sun.faces.enableMissingResourceLibraryDetection to true to verify if library http://java.sun.com/jsf/composite/exporter actually exists

<filter>
		<filter-name>PrimeFaces FileUpload Filter</filter-name>
		<filter-class>org.primefaces.webapp.filter.FileUploadFilter</filter-class>
		<init-param>
			<param-name>thresholdSize</param-name>
			<param-value>51200</param-value>
		</init-param>
		<init-param>
			<param-name>uploadDirectory</param-name>
			<param-value>C:\arquivos</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>PrimeFaces FileUpload Filter</filter-name>
		<servlet-name>Faces Servlet</servlet-name>
	</filter-mapping>







bean

package br.com.projeto.controller;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;

import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;

import javax.faces.context.FacesContext;

import org.primefaces.event.FileUploadEvent;
import org.primefaces.model.DefaultStreamedContent;
import org.primefaces.model.StreamedContent;

import br.com.projeto.beans.Arquivos;
import br.com.projeto.dao.HibernateDao;

@SessionScoped
@ManagedBean
public class ArquivosBean implements Serializable {
	private static final long serialVersionUID = 1L;
	private Arquivos arquivo = new Arquivos();
	private List<Arquivos> arquivos = new ArrayList<Arquivos>();
	@SuppressWarnings("unused")
	private StreamedContent file;

	public String fileUploadAction(FileUploadEvent event) throws IOException {
		try {
			arquivo.setNome(event.getFile().getFileName());
			byte[] conteudo = event.getFile().getContents();
			String caminho = "C:\\arquivos\\" + event.getFile().getFileName();
			FileOutputStream fos = new FileOutputStream(caminho);
			fos.write(conteudo);
			fos.close();
			HibernateDao<Arquivos> hibernateDao = new HibernateDao<Arquivos>(Arquivos.class);
			arquivo.setCaminho(caminho);
			arquivo.setTamanho(conteudo.length);
			String nomeArquivo = arquivo.getNome();
			int e = nomeArquivo.lastIndexOf(".");
			arquivo.setTipo(nomeArquivo.substring(e));
			hibernateDao.salvar(arquivo);
			FacesContext context = FacesContext.getCurrentInstance();
			context.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_INFO, "Arquivo Salvo!", arquivo.getNome()));
		} catch (Exception e) {
			FacesContext context = FacesContext.getCurrentInstance();
			context.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR, "Erro!", " " + e));
		} finally {
			arquivo = new Arquivos();
			arquivos = new ArrayList<Arquivos>();
			file = null;
		}
		return "Arquivos.xhtml";
	}

	public List<Arquivos> getListArquivos() {
		HibernateDao<Arquivos> hibernateDao = new HibernateDao<Arquivos>(Arquivos.class);
		arquivos = hibernateDao.getBeans();
		return arquivos;
	}

	public void remove() {
		try {
			HibernateDao<Arquivos> hibernateDao = new HibernateDao<Arquivos>(Arquivos.class);
			Integer id = arquivo.getId();
			arquivo = hibernateDao.getBean(id);
			new File(arquivo.getCaminho()).delete();
			hibernateDao.deletar(arquivo);
			FacesContext context = FacesContext.getCurrentInstance();
			context.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_INFO, "Arquivo Deletado!", arquivo.getNome()));
		} catch (Exception e) {
			FacesContext context = FacesContext.getCurrentInstance();
			context.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR, "Erro!", " " + e));
		} finally {
			arquivo = new Arquivos();
			arquivos = new ArrayList<Arquivos>();
			file = null;
		}
	}

	public StreamedContent getFile() throws FileNotFoundException {
		HibernateDao<Arquivos> hibernateDao = new HibernateDao<Arquivos>(Arquivos.class);
		Integer id = arquivo.getId();
		arquivo = hibernateDao.getBean(id);
		String caminho = arquivo.getCaminho();
		FileInputStream stream = new FileInputStream(caminho);
		return file = new DefaultStreamedContent(stream, caminho, arquivo.getNome());
	}

	public void setFile(StreamedContent file) {
		this.file = file;
	}

	public Arquivos getArquivo() {
		return arquivo;
	}

	public void setArquivo(Arquivos arquivo) {
		this.arquivo = arquivo;
	}

	public List<Arquivos> getArquivos() {
		return arquivos;
	}

	public void setArquivos(List<Arquivos> arquivos) {
		this.arquivos = arquivos;
	}
}









jsf


<?xml version="1.0" encoding="ISO-8859-1"?>
<!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:ui="http://java.sun.com/jsf/facelets"
	xmlns:h="http://java.sun.com/jsf/html"
	xmlns:f="http://java.sun.com/jsf/core"
	xmlns:p="http://primefaces.prime.com.tr/ui">
<h:head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

	<title>Arquivos</title>
</h:head>
<h:body>
	<h:form enctype="multipart/form-data" update=":form:display">
		<p:growl id="messages" />
		<div align="center">
			<p:panel header="Arquivos" style="width:1050px">
				<ui:include src="/paginas/Menu.xhtml" />


				<p:fileUpload fileUploadListener="#{arquivosBean.fileUploadAction}"
					update="display" multiple="true" />
				<br />
				´
				
				
				<p:dataTable var="arquivos" value="#{arquivosBean.listArquivos}"
					widgetVar="arquivosTable"
					emptyMessage="Nenhum arquivos Encontrado Nessas Condições"
					rowStyleClass="#{empty rowIx or rowIx
 mod 2 ne 0 ? 'even-row' : 'odd-row'}"
					rowIndexVar="rowIx" id="display" rows="30">

					<f:facet name="header">
						<p:outputPanel>
							<h:outputText value="Procurar em todos os campos:" />
							<p:inputText id="globalFilter" onkeyup="arquivosTable.filter()" />
						</p:outputPanel>
					</f:facet>

					<p:column filterBy="#{arquivos.id}" headerText="Código" footerText="Código"
						filterMatchMode="contains" style="width: 40px">
						<h:outputText value="#{arquivos.id}" style="width: 40px" />
					</p:column>

					<p:column filterBy="#{arquivos.nome}" headerText="Descrição"
						footerText="Descrição" filterMatchMode="contains">
						<h:outputText value="#{arquivos.nome}" />
					</p:column>

					<p:column filterBy="#{arquivos.tipo}" headerText="Tipo"
						footerText="Tipo" filterMatchMode="contains" style="width: 40px">
						<h:outputText value="#{arquivos.tipo}" style="width: 40px" />
					</p:column>

					<p:column filterBy="#{arquivos.tamanho}" headerText="Tamanho"
						footerText="Tamanho" filterMatchMode="contains"
						style="width: 140px">
						<h:outputText value="#{arquivos.tamanho}" style="width: 140px" />
					</p:column>



					<p:column style="width:100px">
						<h:panelGrid columns="2" styleClass="actions" cellpadding="2">

							<p:commandButton image="ui-icon-disk" title="Download"
								ajax="false">
								<f:setPropertyActionListener value="#{arquivos.id}"
									target="#{arquivosBean.arquivo.id}" />
								<p:fileDownload value="#{arquivosBean.file}" />
							</p:commandButton>

							<p:commandButton image="ui-icon-trash" title="Excluir"
							onclick="confirmation.show()">
							<f:setPropertyActionListener value="#{arquivos.id}"
									target="#{arquivosBean.arquivo.id}" />
						</p:commandButton>
						</h:panelGrid>
					</p:column>
				</p:dataTable>

<p:confirmDialog id="confirmDialog" message="Confirma Exclusão?"
			severity="alert" widgetVar="confirmation">

			<p:commandButton id="confirm" value="Sim" update="display, messages"
				oncomplete="confirmation.hide()"
				actionListener="#{arquivosBean.remove}">

			</p:commandButton>
			<p:commandButton id="decline" value="Não"
				onclick="confirmation.hide()" type="button" />
		</p:confirmDialog>

				<style>
.ui-datatable .ui-datatable-data .even-row td {
	background-color: #fcefa1;
	border-right: solid 0px #4e6769;
}

.ui-datatable .ui-datatable-data .odd-row td {
	background-color: #f7f7f7;
	border-right: solid 0px #4e6769;
}
</style>
			</p:panel>
		</div>
	</h:form>
</h:body>
</html>

// web.xml
<filter>
	 <filter-name>PrimeFaces FileUpload Filter</filter-name>
  	 <filter-class>
		org.primefaces.webapp.filter.FileUploadFilter
	 </filter-class>
</filter>	
<filter-mapping>
	 <filter-name>PrimeFaces FileUpload Filter</filter-name>
	 <servlet-name>Faces Servlet</servlet-name>
</filter-mapping>


//MeuBean.java
import java.io.Serializable;

import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import javax.faces.context.FacesContext;

import org.primefaces.event.FileUploadEvent;
  
@ManagedBean(name="meuBean")
@ViewScoped
public class MeuBean implements Serializable {  
  
    /**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	public void handleFileUpload(FileUploadEvent event) {  
        FacesMessage msg = new FacesMessage("Succesful", event.getFile().getFileName() + " is uploaded.");  
        FacesContext.getCurrentInstance().addMessage(null, msg);  
    }
    
    public void teste(){
    	
    }
}  


//upload.xhtml

<html xmlns="http://www.w3.org/1999/xhtml"
	xmlns:h="http://java.sun.com/jsf/html"
	xmlns:f="http://java.sun.com/jsf/core"
	xmlns:p="http://primefaces.org/ui">

	<h:head>
	<title>Luirton</title>
	</h:head>
	
	<h:body>

		<h:form enctype="multipart/form-data">  
  <p:panel header="Luirton - Upload exemplo ;)">
    <p:fileUpload fileUploadListener="#{meuBean.handleFileUpload}"  
            mode="advanced"  
            update="messages"   
            multiple="true"     
            allowTypes="/(\.|\/)(gif|jpe?g|png|JGP)$/"/>  
  
    <p:growl id="messages" showDetail="true"/>  
  </p:panel>
</h:form> 
		
	</h:body>
</html>

<context-param>
    <description>
            State saving method: 'client' or 'server' (=default). See JSF Specification 2.5.2
        </description>
    <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
    <param-value>
            client
        </param-value>
  </context-param>


 e 

<mime-mapping>
        <extension>java</extension>
        <mime-type>text/plain</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>cpp</extension>
        <mime-type>text/plain</mime-type>
    </mime-mapping>

public class MeuBean implements Serializable{
   private String nome;
   private String caminho;

//gets e set
//coinstrutor

}

import org.primefaces.event.FileUploadEvent;
import org.primefaces.model.DefaultStreamedContent;
import org.primefaces.model.StreamedContent;
import org.primefaces.model.UploadedFile;


@ManagedBean(name = "meuMB")
@SessionScoped
public class MeuMB implements Serializable{
    private MeuBean meuBean;
    private StreamedContent file;

    public void setFile(StreamedContent file) {
        this.file = file;
    }
    
    public StreamedContent getFile(Documento documento) throws FileNotFoundException {
        //essas variáveis locais eu uso para pegar o nome e a onde eu vou guardar
        String arquivo = meuBean.getNome();
        String caminho = meuBean.getCaminho();
        FileInputStream stream = new FileInputStream(caminho);
        file = new DefaultStreamedContent(stream, caminho, arquivo);
        return file;
    }

    public void fileUploadAction(FileUploadEvent event) throws IOException {
        try {
            UploadedFile arq = event.getFile();
            InputStream in = new BufferedInputStream(arq.getInputstream());            
            File file = new File("C:/diretório onde vou guardar/"+arq.getFileName());
            meuBean.setCaminho(file.getAbsolutePath());
            FileOutputStream fout = new FileOutputStream(file);
            while (in.available() != 0) {
                fout.write(in.read());
            }

            fout.close();
            FacesMessage msg = new FacesMessage("O Arquivo ", file.getName() + " salvo.");
            FacesContext.getCurrentInstance().addMessage("msgUpdate", msg);
        } catch (Exception ex) {
            System.out.println("erro no upload "+ex.getMessage());
        }
    }
}

<h:outputText value="Carregar Arquivo"/>     
<p:fileUpload label="Selecionar..." fileUploadListener="#{meuMB.fileUploadAction}"  id="caminho" value="#{meuMB.caminho}"  />

<p:commandButton ajax="false" value="Cadastrar" id="cadastrar" immediate="true" 
    action="#{meuBean.vai}" />