java - To upload a file using rich:fileUpload -

i'm facing problem while uploading file server, in code below can context.

view.xhtml

<h:outputtext value="subir archivo tráfico:" styleclass="label" /> <h:panelgrid >     <rich:fileupload         disabled="#{not administrarformtraficobean.edicionhabilitada}"         fileuploadlistener="#{fileuploadbean.listener}"         listheight="60px"         id="upload"         acceptedtypes="txt"         ontyperejected="alert('Únicamente se pueden cargar archivos en formato .txt');"         autoclear="true"         maxfilesquantity="1"         lang="es"         donelabel="listo"          deletelabel="eliminar"         servererrorlabel="se produjo un error al subir el archivo"         sizeexceededlabel="el tamaño de archivo supera el tamaño permitido!"         clearlabel="limpiar"         clearalllabel="limpiar"         addlabel="agregar..."         uploadlabel="cargar archivo">         <a4j:ajax event="uploadcomplete" execute="@none" render="info" />     </rich:fileupload>     <h:panelgrid id="info" layout="block" >         <rich:panel bodyclass="info">             <f:facet name="header">                 <h:outputtext value="archivo subido" />             </f:facet>             <h:outputtext value="no hay archivos subidos."                 rendered="#{fileuploadbean.size==0}" />             <rich:datagrid columns="1" value="#{fileuploadbean.files}"                 var="file" rowkeyvar="row">                 <rich:panel bodyclass="rich-laguna-panel-no-header">                     <h:panelgrid>                         <h:panelgrid columns="2">                             <h:outputtext value="nombre archivo:" />                             <h:outputtext value="#{file.name}" />                             <h:outputtext value="tamaño (bytes):" />                             <h:outputtext value="#{file.length}" />                         </h:panelgrid>                     </h:panelgrid>                 </rich:panel>             </rich:datagrid>         </rich:panel>         <br />     </h:panelgrid> </h:panelgrid> 

fileuploadbean.java

package uy.com.xxx.utiles.uploadtrafico;  import java.io.bytearrayoutputstream; import java.io.file; import java.io.fileinputstream; import java.io.filenotfoundexception; import java.io.fileoutputstream; import java.io.ioexception; import java.util.arraylist;  import javax.ejb.ejb; import javax.faces.bean.managedbean; import javax.faces.bean.sessionscoped;  import org.richfaces.event.fileuploadevent; import org.richfaces.model.uploadedfile;  import uy.com.xxx.ejb.managersysparm; import uy.com.xxx.utiles.constantes;  @managedbean(name = "fileuploadbean") @sessionscoped public class fileuploadbean {      private arraylist<filetrafico> files = new arraylist<filetrafico>();     @ejb     private managersysparm managersysparm;      public int getsize() {         if (getfiles().size() > 0) {             return getfiles().size();         } else {             return 0;         }     }      public fileuploadbean() {     }      public void listener(fileuploadevent event) throws exception {         uploadedfile item = event.getuploadedfile();         filetrafico file = new filetrafico();          file.setdata(item.getdata());         file.setlength(item.getdata().length);         file.setname(item.getname());         files.clear();         files.add(file);          subirarchivo(event);     }      public void subirarchivo(fileuploadevent event) throws ioexception {         byte[] bytes = null;         uploadedfile item = event.getuploadedfile();         file file = new file(managersysparm.buscarvalorparametro(constantes.directorio_temporal) + item.getname());         fileinputstream fis = new fileinputstream(file);         fileoutputstream fos = new fileoutputstream(managersysparm.buscarvalorparametro(constantes.directorio_temporal)+ item.getname());         try {             bytearrayoutputstream bos = new bytearrayoutputstream();             byte[] buf = new byte[1024];              (int readnum; (readnum = fis.read(buf)) != -1;) {                 bos.write(buf, 0, readnum);             }              fis.close();             bytes = bos.tobytearray();             fos.write(bytes);             fos.close();          } catch (filenotfoundexception e) {             system.out.println("el archivo que está subiendo presenta un error: " + e);             e.printstacktrace();         }      }      public arraylist<filetrafico> getfiles() {         return files;     }      public void setfiles(arraylist<filetrafico> files) {         this.files = files;     }  } 

in filetrafico.java

public class filetrafico {      private string name;     private string mime;     private long length;     private byte[] data;     public byte[] getdata() {         return data;     }     public void setdata(byte[] data) {         this.data = data;     }     public string getname() {         return name;     }     public void setname(string name) {         name = name;         int extdot = name.lastindexof('.');         if(extdot > 0){             string extension = name.substring(extdot +1);             if("txt".equals(extension)){                 mime="text/plain";             }else {                 mime = "text/unknown";             }         }     }     public long getlength() {         return length;     }     public void setlength(long length) {         this.length = length;     }      public string getmime(){         return mime;     }  } 

the actual problem is, file created in "tempfolder/filename" leads nothing inside, it's txt size 0 bytes.

i'm not sure i'm doing wrong, welcome!