Question

I've got a fairly simple Spring Boot web application, I have a single HTML page with a form with enctype="multipart/form-data". I'm getting this error:

The multi-part request contained parameter data (excluding uploaded files) that exceeded the limit for maxPostSize set on the associated connector.

I'm using Spring Boot's default embedded tomcat server. Apparently the default maxPostSize value is 2 megabytes. Is there any way to edit this value? Doing so via application.properties would be best, rather than having to create customized beans or mess with xml files.

Whereever you have declared your multi-part resolver, you can change these things. — Oct 20 '15 at 11:22
I haven't declared it anywhere. I'm assuming that means spring boot is automatically creating and handling it. Does that mean I can't edit it? — Oct 20 '15 at 23:56
You can edit it. Find the multipart resolver and edit the value. If there is multipart support, I am sure you will find some configuration for it. You have not even posted your config in the main post, so no one can even point out what to change. — Oct 21 '15 at 7:04

422 6 15 · Answer 1 · 2015-10-20 09:36:20Z

10

In application.properties file write this:

# Max file size.spring.http.multipart.max-file-size=1Mb# Max request size.spring.http.multipart.max-request-size=10Mb

adjust size according to your need.

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answered

Oct 20 '15 at 9:36

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Tried that, still gave me errors. I'm not actually uploading any files in the form, I just have a lot of input fields with values tens of thousands of characters long, and if I have too much text (more than 2MB of text) it crashes. Was hoping to increase the postMaxSize to more than 2MB to avoid this problem. –

Oct 21 '15 at 0:10

can you please post your code and error stacktrace –

Oct 21 '15 at 5:20

1

The dashes should not be included in the property names. multipart.maxRequestSize=20MB multipart.maxFileSize=20MB –

Mar 25 '16 at 20:30

spring.http.multipart.max-file-size=1Mb # Max file size. Values can use the suffixed "MB" or "KB" to indicate a Megabyte or Kilobyte size. spring.http.multipart.max-request-size=10Mb # Max request size. Values can use the suffixed "MB" or "KB" to indicate a Megabyte or Kilobyte size.

–

Aug 25 '16 at 19:05

score 9 · Accepted Answer · 2015-11-16 00:37:52Z

Found a solution. Add this code to the same class running SpringApplication.run.

// Set maxPostSize of embedded tomcat server to 10 megabytes (default is 2 MB, not large enough to support file uploads > 1.5 MB)@BeanEmbeddedServletContainerCustomizer containerCustomizer() throws Exception {    return (ConfigurableEmbeddedServletContainer container) -> {        if (container instanceof TomcatEmbeddedServletContainerFactory) {            TomcatEmbeddedServletContainerFactory tomcat = (TomcatEmbeddedServletContainerFactory) container;            tomcat.addConnectorCustomizers(                (connector) -> {                    connector.setMaxPostSize(10000000); // 10 MB                }            );        }    };}

Edit: Apparently adding this to your application.properties file will also increase the maxPostSize, but I haven't tried it myself so I can't confirm.

multipart.maxFileSize=10Mb # Max file size.multipart.maxRequestSize=10Mb # Max request size.

adding the properties works for me: multipart.maxFileSize and multipart.maxRequestSize — Sep 21 '16 at 15:19
the connector solution didn't work for me, neither did the multipart.maxFileSize. What worked for me was spring.http.multipart.max-file-size from the answer below. — Sep 9 at 20:54

306 5 12 · Answer 3 · 2017-01-17 11:56:48Z

There is some difference when we define the properties in the application.properties and application yaml.

In application.yml :

spring:  http:    multipart:      max-file-size: 256KB      max-request-size: 256KB

And in application.propeties :

spring.http.multipart.max-file-size=128KB spring.http.multipart.max-request-size=128KB

Note : Spring version 4.3 and Spring boot 1.4

4 Answers