How to upload files over 100 MB to Tomcat

Question

I'm facing trouble while uploading large files to the server for my project. I have modified maxPostSize and maxHttpHeaderSize in server.xml as suggested in this article but it's showing java.lang.OutOfMemoryError. What to do?

Answer 1

Have a look at the documentation. In particular, you're interested in the maxFileSize parameter, which you can set either with annotations or xml.

Directly from the link above,

@MultipartConfig(location="/tmp", fileSizeThreshold=1024*1024,
maxFileSize=1024*1024*5, maxRequestSize=1024*1024*5*5)

or

<multipart-config>
    <location>/tmp</location>
    <max-file-size>20848820</max-file-size>
    <max-request-size>418018841</max-request-size>
    <file-size-threshold>1048576</file-size-threshold>
</multipart-config>

So for example, you can annotate your servlet like so:

@MultipartFileConfig( options )
public class YourServlet extends HttpServlet {

    ...

or add the equivalent xml in the config if using xml.