JSF File Upload Example

Here is one simple example to upload files in JSF with tomahawk framework

Software Used

1. JSF 1.2

2. Java 1.6

3. Tomahawk 1.1

3. Eclipse Juno

4. Tomcat 7

Libraries required

  1. Apache common-fileupload
  2. jsf-api
  3. jsf-impl
  4. jstl
  5. tomahawk.1.1.6
  6. tomahawk-facelets.1.1.6

Download tomahawk jars from http://myfaces.apache.org/tomahawk/download.html         

1.Create a Web application and JSF Page(FileuploadJSF.jsp)

<%@page import="java.io.FileFilter"%>
<%@page import="java.io.FilenameFilter"%>
<%@page import="java.io.File"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
<%@taglib uri="http://myfaces.apache.org/tomahawk" prefix="x"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">
<f:view>
    <html>
        <head>
            <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
            <title>JSP Page</title>
        </head>
        <body>
            <h:form enctype="multipart/form-data">
                <h:panelGrid border="1" columns="2">
                    <h:outputText value="ID"></h:outputText>
                    <h:outputText value="File upload"></h:outputText>
                    <x:inputFileUpload id="file" value="#{fileUpload.upload}" required="false" size="40" />
                    <h:commandButton action="#{fileUpload.uploadFile}"  value="Add Files"></h:commandButton>
               </h:panelGrid>
            </h:form>        </body>
    </html>
</f:view>

2. Update Faces-config.xml

<navigation-rule>
              <from-view-id>/FileuploadJSF.jsp</from-view-id>
              <navigation-case>
                    <from-outcome>Success</from-outcome>
                     
                     <to-view-id>/FileuploadJSF.jsp</to-view-id>
                     <redirect></redirect>
              </navigation-case>
              <navigation-case>
                     <from-outcome>Failure</from-outcome>
                     <to-view-id>/FileuploadJSF.jsp</to-view-id>
              </navigation-case>
       </navigation-rule>
<managed-bean>
        <managed-bean-name>fileUpload</managed-bean-name>
        <managed-bean-class>com.jsf.FileUpload</managed-bean-class>
        <managed-bean-scope>request</managed-bean-scope>
    </managed-bean>

3. Create Managed Bean

package com.jsf;
 
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.myfaces.custom.fileupload.UploadedFile;
 
public class FileUpload {
    private UploadedFile upload;
 
    public UploadedFile getUpload() {
        return upload;
    }
 
    public void setUpload(UploadedFile upload) {
        this.upload = upload;
    }
 
    public FileUpload() {
 
    }
 
    public String uploadFile() {
        File savedFileName;
        String dirPath = "D:\\vinod\\";
        InputStream fileContent = null;
        if (upload == null) {
            return "success";
        }
        try {
            fileContent = upload.getInputStream();
 
        } catch (IOException e) {
            e.printStackTrace();
        }
        String uploadFileName = trimFilePath(upload.getName());
        savedFileName = new File(dirPath + uploadFileName);
        BufferedOutputStream bos = null;
        try {
            bos = new BufferedOutputStream(new FileOutputStream(savedFileName));
        } catch (FileNotFoundException e) {
        }
        byte[] buffer = new byte[1024];
        int len;
        try {
            while ((len = fileContent.read(buffer)) >= 0) {
                bos.write(buffer, 0, len);
            }
        } catch (IOException e) {
        }
        try {
            fileContent.close();
            bos.close();
        } catch (IOException e) {
        }
        return "success";
    }
 
    public static String trimFilePath(String fileName) {
        return fileName.substring(fileName.lastIndexOf("/") + 1).substring(
                fileName.lastIndexOf("\\") + 1);
    }
}

4. Update Web.xml

<servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>/faces/*</url-pattern>
  </servlet-mapping>
  <filter>
        <filter-name>extensionsFilter</filter-name>
        <filter-class>
            org.apache.myfaces.webapp.filter.ExtensionsFilter
        </filter-class>
        <init-param>
            <param-name>uploadMaxFileSize</param-name>
            <param-value>1000m</param-value>
        </init-param>
        <init-param>
            <param-name>uploadThresholdSize</param-name>
            <param-value>10000k</param-value>
        </init-param>
    </filter>
       <filter-mapping>
        <filter-name>extensionsFilter</filter-name>
        <url-pattern>*.jsf</url-pattern>
    </filter-mapping>
    <filter-mapping>
        <filter-name>extensionsFilter</filter-name>
        <url-pattern>/faces/*</url-pattern>
    </filter-mapping>
 

5. Deploy application on Tomcat

image

Download Source code

JSF File Upload Example

-
Labels: ,

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

12 classic String-based Java interview questions with simple explanations and code.

  1️⃣ Check if a String is a Palindrome Problem Given a string, check if it reads the same forward and backward. Example: "madam...

Featured Posts