"the request was rejected because its size " Spring, tomcat

spring:
  http:
    multipart:
      enabled: true
      max-file-size: 50MB
      max-request-size: 50MB

or

spring.http.multipart.max-file-size=50MB
spring.http.multipart.max-request-size=50MB

Reference here

Hope it will works


Following are the ways based on version,

1'st :

spring.servlet.multipart.max-file-size=1000MB
spring.servlet.multipart.max-request-size=1000MB

2'nd :

spring.http.multipart.max-file-size=50MB
spring.http.multipart.max-request-size=50MB

3'rd :

multipart.enabled=true
multipart.max-file-size=100MB
multipart.max-request-size=100MB

For SpringBoot 1.5.7 till 2.1.2 the property need to set in application.properties file are:

spring.http.multipart.max-file-size=100MB
spring.http.multipart.max-request-size=100MB

Also make sure you have application.properties file in "resources" folder.