@MultipartConfig override in web.xml

Question

So I have this servlet :

    @WebServlet(name = \"StudentRegistrationUsn\", urlPatterns = {\"/university/student/registration\"})
@MultipartConfig(maxFileSiz         


        

Answer 1

The <servlet-class> is missing in web.xml. This exception is basically caused because the name of the to-be-loaded class is null.

In fact, you need to redefine everything, including the URL patterns.

<servlet>
    <servlet-name>StudentRegistrationUsn</servlet-name>
    <servlet-class>com.example.StudentRegistrationUsn</servlet-class>
    <multipart-config>
        <max-file-size>10485760</max-file-size>
        <max-request-size>20971520</max-request-size>
        <file-size-threshold>5242880</file-size-threshold>
    </multipart-config>
</servlet>
<servlet-mapping>
    <servlet-name>StudentRegistrationUsn</servlet-name>
    <url-pattern>/university/student/registration</url-pattern>
</servlet-mapping>