The maximum limit of MultipartFile in Spring Boot

php Editor Banana today wants to introduce to you the biggest limitation of MultipartFile in Spring Boot. When developing with Spring Boot, we often encounter the need to upload files. However, due to security and performance considerations, we need to limit the size of uploaded files to avoid potential problems. This article will explain in detail how to set and modify the maximum limit of MultipartFile in Spring Boot, and how to handle situations where the limit is exceeded, helping developers better grasp and apply this feature. Whether you are a beginner or an experienced developer, this article will provide you with valuable guidance and solutions. Let’s take a closer look!

Question content

Is there a maximum file size that spring boot can handle during the MultipartFile upload process. I know I can set maxFileSize in a property like multipart.maxFileSize=1Mb .

In this way, I can allow the upload of a large file, such as 50MB. The application runs on a Tomcat server integrated with Spring Boot. Do I still need to configure the tomcat server? Or file size unlimited?

Solution

Unlimited upload file size

It seems that setting -1 will make the file size unlimited.

Before spring boot 2.0:

spring.http.multipart.max-file-size=-1
spring.http.multipart.max-request-size=-1

After spring boot 2.0:

spring.servlet.multipart.max-file-size=-1
spring.servlet.multipart.max-request-size=-1

For users using spring boot 2.0 (starting from m1 version), the property name has been changed to:

spring.servlet.multipart.max-file-size=10MB
spring.servlet.multipart.max-request-size=10MB

Note that the prefix is ​​spring.servlet instead of spring.http.

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