Home Tutorials Java Struts Struts2 Struts 2 Image Upload using Interceptor

Struts 2 Image Upload using Interceptor

Posted in : Java Posted on : November 21, 2011 at 6:24 PM Comments : [ 0 ]

In this section, you will learn how to upload Image using Struts2 Interceptor. This section contain Struts 2 Image Upload Interceptor example with downloadable code.

Struts 2 Image Upload using Interceptor

In this section, you will learn how to upload Image using Struts2 Interceptor. This section contain Struts 2 Image Upload Interceptor example with downloadable code.

The project hierarchy is given below :

The jar file used in the application is given below :

CODE

In this example, a form for uploading image is available which gives the information of the uploaded image after upload.

The code for the JSP files are given below :

ImageUpload.jsp

<%@ page contentType="text/html; charset=UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
<title>Upload User Image</title>
</head>

<body>
<h2>Struts2 Image Upload</h2>
<s:actionerror />
<s:form action="userImage.action" method="post"
enctype="multipart/form-data">
<s:file name="userImage" label="User Image" />
<s:submit value="Upload" align="center" />
</s:form>
</body>
</html>

ImageUploadSuccess.jsp

<%@ page contentType="text/html; charset=UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
<title>Struts2 Image Upload</title>
</head>
<body>
<h2>Struts2 Image Upload</h2>
<b>Image Uploaded To Folder :</b><s:property value="userImage"/>
<br/>
<b>Content Type:</b> <s:property value="userImageContentType"/>
<br/>
<b>Uploaded Image Name:</b> <s:property value="userImageFileName"/>
<br/>
<b>Uploaded Image Preview :</b>
<br/>
<img src="<s:property value="userImageFileName"/>"/>

</body>
</html>

The code for the action class is given below :

ImageUploadAction.java

package com.devmanuals.struts2;

import java.io.File;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.apache.commons.io.FileUtils;
import org.apache.struts2.interceptor.ServletRequestAware;

import com.opensymphony.xwork2.ActionSupport;

public class ImageUploadAction extends ActionSupport implements
ServletRequestAware {
private File userImage;
private String userImageContentType;
private String userImageFileName;

private HttpServletRequest servletRequest;

public String execute() {
try {
HttpSession session = servletRequest.getSession();
ServletContext context = session.getServletContext();
String filePath = context.getRealPath("/");
System.out.println("Server path:" + filePath);

File fileToCreate = new File(filePath, this.userImageFileName);

FileUtils.copyFile(this.userImage, fileToCreate);

} catch (Exception e) {
e.printStackTrace();
addActionError(e.getMessage());

return INPUT;
}

return SUCCESS;
}

public File getUserImage() {
return userImage;
}

public void setUserImage(File userImage) {
this.userImage = userImage;
}

public String getUserImageContentType() {
return userImageContentType;
}

public void setUserImageContentType(String userImageContentType) {
this.userImageContentType = userImageContentType;
}

public String getUserImageFileName() {
return userImageFileName;
}

public void setUserImageFileName(String userImageFileName) {
this.userImageFileName = userImageFileName;
}

@Override
public void setServletRequest(HttpServletRequest servletRequest) {
this.servletRequest = servletRequest;

}
}

The xml file configurations are given below :

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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>Struts2FileUpload</display-name>
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>ImageUpload.jsp</welcome-file>
</welcome-file-list>

</web-app>

struts.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="default" extends="struts-default" namespace="/">
<action name="userImage" class="com.devmanuals.struts2.ImageUploadAction">
<interceptor-ref name="fileUpload">
<param name="maximumSize">2097152</param>
<param name="allowedTypes">
image/png,image/gif,image/jpeg,image/pjpeg
</param>
</interceptor-ref>
<interceptor-ref name="defaultStack"></interceptor-ref>
<result name="success">ImageUploadSuccess.jsp</result>
<result name="input">ImageUpload.jsp</result>
</action>
</package>
</struts>