Modifying CommonsMultipartResolver maxUploadSize at Run Time

Question

I am using CommonsMultipartResolver to upload files.

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver" > <!-- specify maximum file size in bytes --> <property name="maxUploadSize" value="100000"/> </bean 

I want to be able to change its maxUploadSize property at runtime (so that the size can be changed by the administrator). What is the best way to do this, please?

Answer 1

You can autowire CommonsMultipartResolver in your controller and update it there at runtime.

For example:

 @Controller public class MyController { @Autowired private CommonsMultipartResolver multipartResolver; @RequestMapping(value = "/setMaxUploadSize", method = RequestMethod.GET) public ModelAndView setMaxUploadSize() { ... multipartResolver.setMaxUploadSize(5000); ... } }