我尝试使用PrimeFaces上传文件，但上传完成后不会调用fileUploadListener方法。我添加了jar commons-io和commons-fileupload。
我正在使用
我搜索了很多但没有任何效果。这是我的代码。
托管Bean：
package image;
import java.io.IOException;
import java.io.InputStream;
import javax.ejb.EJB;
import javax.enterprise.context.SessionScoped;
import javax.faces.bean.ManagedBean;
import org.apache.commons.io.IOUtils;
import org.primefaces.event.FileUploadEvent;
import org.primefaces.model.UploadedFile;
@ManagedBean(name="uploadBean")
@SessionScoped
public class UploadBean {
private UploadedFile file;
private Fichier fichier;
@EJB
private FichierDao fichierDao;
public UploadBean()
{
fichier = new Fichier();
}
public void handleFileUpload(FileUploadEvent event) {
file= event.getFile();
// System.out.print("gfghfhgf"+file.getSize());
}
// Store file in the database
public void storeImage() {
System.out.println("11111mamlamlmalmalmlkljkjkhkjhjhjghj");
try {
InputStream is =file.getInputstream() ;
fichier.setKey(IOUtils.toByteArray(is));
System.out.println("22222222mamlamlmalmalmlkljkjkhkjhjhjghj");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
System.out.println("33333333333mamlamlmalmalmlkljkjkhkjhjhjghj");
}
System.out.println("44444444444mamlamlmalmalmlkljkjkhkjhjhjghj");
fichierDao.create(fichier);
System.out.println("55555555555mamlamlmalmalmlkljkjkhkjhjhjghj");
}
public UploadedFile getFile() {
return file;
}
public void setFile(UploadedFile file) {
this.file = file;
}
public Fichier getFichier() {
return fichier;
}
}
页面xhtml
<!DOCTYPE html>
<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>
<meta charset="utf-8" />
</h:head>
<h:body>
<h:outputText value="PrimeFaces Single Upload"
style="font:30px bold; margin-left:15%;" />
<h:form enctype="multipart/form-data">
<p:fileUpload
fileUploadListener="#{uploadBean.handleFileUpload}" ajax="false"
mode="advanced"
label="Choisir une image"
update="messages"
sizeLimit="100000"
fileLimit="1"
invalidSizeMessage="La taille maximale du fichier est 1 Megabyte !"
invalidFileMessage="Charger des images"
allowTypes="/(\.|\/)(gif|jpe?g|png)$/" />
<p:growl id="messages" showDetail="true" />
<p:commandButton value="Submit" action="#{uploadBean.storeImage}" />
</h:form>
</h:body>
</html>
web.xml：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">
<!-- Changer cette valeur à "Production" lors du déploiement final de l'application -->
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value>Development</param-value>
</context-param>
<context-param>
<param-name>primefaces.UPLOADER</param-name>
<param-value>commons</param-value>
</context-param>
<context-param>
<param-name>
javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL
</param-name>
<param-value>true</param-value>
</context-param>
<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>10240</param-value> <!-- 10 Mb -->
</init-param>
</filter>
<filter-mapping>
<filter-name>PrimeFaces FileUpload Filter</filter-name>
<servlet-name>Faces Servlet</servlet-name>
<dispatcher>FORWARD</dispatcher>
</filter-mapping>
<!-- Déclaration du contrôleur central de JSF : la FacesServlet -->
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- Mapping : association des requêtes dont le fichier porte l'extension
.xhtml à la FacesServlet -->
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.faces</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>page1.xhtml</welcome-file>
</welcome-file-list>
</web-app>`
答案 0 :(得分：2)
在提交“文件上载”或“文件下载”表单的任何命令组件上使用ajax="false"。
由于上传/下载是HTTP GET请求，因此不使用确实是POST请求的Ajax提交。
<p:commandButton value="Submit" ajax="false" action="#{uploadBean.storeImage}" />
答案 1 :(得分：0)
以下是使用primefaces 5.0上传文件的示例;你不需要commons-fileupload-1.3.1.jar和commons-io-2.4.jar;而且你不需要更改web.xml，并在h：form中声明growl而不是在p：fileUpload中声明更多信息，请参阅How to upload files in primefaces
托管Bean：
package image;
import java.io.IOException;
import java.io.InputStream;
import javax.ejb.EJB;
import javax.enterprise.context.SessionScoped;
import javax.faces.bean.ManagedBean;
import org.apache.commons.io.IOUtils;
import org.primefaces.model.UploadedFile;
@ManagedBean(name="uploadBean")
@SessionScoped
public class UploadBean {
private UploadedFile file;
private Fichier fichier;
@EJB
private FichierDao fichierDao;
public UploadBean()
{
fichier = new Fichier();
}
// Store file in the database
public void storeImage() {
if(!(file.getContentType().equalsIgnoreCase("image type"))){
FacesMessage message = new FacesMessage("Not Uploaded","Required file types: ");
FacesContext.getCurrentInstance().addMessage(null, message);
}
if(!(file.getSize() <= 10000000)){ // size
FacesMessage message = new FacesMessage("Not Uploaded","file size should be less than or equal to 10mb");
FacesContext.getCurrentInstance().addMessage(null, message);
}
if(file.getSize()==0){
FacesMessage message = new FacesMessage("","select a file");
FacesContext.getCurrentInstance().addMessage(null, message);
}
if((file.getSize() > 0 && file.getSize() <= 10000000) && (file.getContentType().equalsIgnoreCase("application/vnd.ms-excel")) ){
//your code here for storing image
System.out.println("11111mamlamlmalmalmlkljkjkhkjhjhjghj");
try {
InputStream is =file.getInputstream() ;
fichier.setKey(IOUtils.toByteArray(is));
System.out.println("22222222mamlamlmalmalmlkljkjkhkjhjhjghj");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
System.out.println("33333333333mamlamlmalmalmlkljkjkhkjhjhjghj");
}
System.out.println("44444444444mamlamlmalmalmlkljkjkhkjhjhjghj");
fichierDao.create(fichier);
System.out.println("55555555555mamlamlmalmalmlkljkjkhkjhjhjghj");
//your code above for storing image
FacesMessage message = new FacesMessage("Succesfull", file.getFileName() + " is uploaded.");
FacesContext.getCurrentInstance().addMessage(null, message);
}
}
public UploadedFile getFile() {
return file;
}
public void setFile(UploadedFile file) {
this.file = file;
}
public Fichier getFichier() {
return fichier;
}
}
页面xhmtl：
<!DOCTYPE html>
<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>
<meta charset="utf-8" />
</h:head>
<h:body>
<h:outputText value="PrimeFaces Single Upload"
style="font:30px bold; margin-left:15%;" />
<h:form enctype="multipart/form-data">
<p:growl id="messages" showDetail="true" />
<p:fileUpload
value="#{uploadBean.file}" mode="simple"/>
<p:commandButton value="Submit" actionListener="#{uploadBean.storeImage}"
ajax="false" disabled="false"/>
</h:form>
</h:body>
</html>