java

Spring MVC File Upload Form

Leave a comment

Objective : Setup a form with file upload field

Environment

  • Spring MVC 3.2.3.RELEASE
  • Commons Fileupload 1.3

First let’s code the JSP view of the form. Note below enctype=”multipart/form-data” setting is important, it tells the browser to post the form data as multipart.




  File: 

  



              
Above JSP will result in a simple file upload form like this:

              
fileuploadform

              
Then add commons-fileupload 1.3 maven dependency to your pom.xml:

              

  commons-fileupload
  commons-fileupload
  1.3



              
And configure CommonsMultipartResolver on your spring context. The bean id name is important. Also below I configured it to have maximum file size of 1 mb (1000000 bytes)

              

  



              
Now we’re ready to code the controller handler method. The uploaded file is automatically bound into a  object from which you can obtain input stream.

              
(value = "/", method = RequestMethod.POST)
public String upload(("myfile") MultipartFile myFile) {
  logger.info("Received file of size " + myFile.getSize() + " bytes");
  InputStream inputStream = myFile.getInputStream();
  // .. do something with inputStream
  inputStream.close();
  return "home";
}


            

            
          

          
          

            

              
Leave a Reply