Upload image in Spring MVC Application

Step-1

  pom.xml
 <dependency>
                   <groupId>commons-fileupload</groupId>
                   <artifactId>commons-fileupload</artifactId>
                   <version>1.2.2</version>
          </dependency>
           
          <dependency>
                   <groupId>commons-io</groupId>
                   <artifactId>commons-io</artifactId>
                   <version>1.3.2</version>
          </dependency>

 Step-2

  

 for uploading image enctype="multipart/form-data"

 commandName is mandatory 

<ff:form name="F1" onSubmit="return dil(this)" action="create.htm" method="post"

 commandName="fcustomer" enctype="multipart/form-data">

<ff:form>

Step-3:-

Add this html tag in jsp

<tr><td>Upload Photo:</td><td> <input type="file" name="photo"/></td></tr>    

Step-4:-

Add one spring bean for image upload in spring application context file

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:context="http://www.springframework.org/schema/context"

          xsi:schemaLocation="

                   http://www.springframework.org/schema/beans

                   http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

                   http://www.springframework.org/schema/context

                   http://www.springframework.org/schema/context/spring-context-3.0.xsd">

<bean id="multipartResolver"

    class="org.springframework.web.multipart.commons.CommonsMultipartResolver">

    <!-- one of the properties available; the maximum file size in bytes -->

    <property name="maxUploadSize" value="4000000"/>

    </bean>

 </beans>        

Step-5:-

//It converts your upload file into byte array form after it

//it is populated in customer java object

 @InitBinder

 public void initBinder(WebDataBinder binder) {

                   // to actually be able to convert Multipart instance to byte[]

                   // we have to register a custom editor

                   binder.registerCustomEditor(byte[].class,

                                      new ByteArrayMultipartFileEditor());

                   // now Spring knows how to handle multipart object and convert them

 }

Step-6

Accessing populated pojo in spring controller

using @ModelAttribute

  @RequestMapping(value = "/cust/save.do", method = RequestMethod.POST)

public String saveCustomerAction(

@Valid @ModelAttribute("ccustomer") Customer customer,

BindingResult bindingResult, Model model) {

if (bindingResult.hasErrors()) {

logger.info("Returning custSave.jsp page"); return "custSave";

}

logger.info("Returning custSaveSuccess.jsp page");

model.addAttribute("customer", customer);

customers.put(customer.getEmail(), customer);

return "custSaveSuccess";

}