Geting HTTP Status 400 - Required MultipartFile parameter 'file' is not present in spring

Question

I am trying to upload a file using spring. Below is my code how I am working on it but if I try to use it I am getting this response:

HTTP

Answer 1

it works for me after i wrote in that input box name of the parameter "file" when i already have well configured the bean id in the Krajee bootstrap inputfile example ("https://github.com/kartik-v/bootstrap-fileinput").

Answer 2

Spring needs the

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver" />

bean to handle file-uploads.

You should register this bean in your application context file.

The Content-Type should also be valid. In your case enctype="multipart/form-data"

EDIT1:

You can give the upload and memory size to the bean properties:

  <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!-- max upload size in bytes -->
        <property name="maxUploadSize" value="20971520" /> <!-- 20MB -->

        <!-- max size of file in memory (in bytes) -->
        <property name="maxInMemorySize" value="1048576" /> <!-- 1MB -->

    </bean>

Answer 3

when you select the file in advance rest client, on the right side there is a input box, write in that input box name of the parameter, in your case name of parameter is file

Parameter name defined here in controller @RequestParam("file")