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. — We are Borg, 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? — Jordan, 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. — We are Borg, Oct 21 '15 at 7:04

realPK · Answer 1 · 2016-11-04 08:43:45Z

up vote 10 down vote

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.

edited Nov 4 '16 at 8:43

realPK

422 6 15

answered Oct 20 '15 at 9:36

Sanjay Singh Rawat

585 7 14

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. – Jordan Oct 21 '15 at 0:10

can you please post your code and error stacktrace – Sanjay Singh Rawat Oct 21 '15 at 5:20

1

The dashes should not be included in the property names. multipart.maxRequestSize=20MB multipart.maxFileSize=20MB – userM1433372 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.

– deFreitas Aug 25 '16 at 19:05

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Jordan · Accepted Answer · 2016-05-03 00:36:46Z

up vote 9 down vote accepted

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)
@Bean
EmbeddedServletContainerCustomizer 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.

edited May 3 '16 at 0:36

answered Nov 16 '15 at 0:37

Jordan

575 1 5 16

adding the properties works for me: multipart.maxFileSize and multipart.maxRequestSize – Marco Wagner 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. – Riki137 Sep 9 at 20:54

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denzal · 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

The multi-part request contained parameter data (excluding uploaded files) that exceeded

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