The post request theoretically has no limit on the size of the parameter, but the tomcat server has a limit. This article does not introduce the way to change the tomcat configuration file. It is solved by changing the spring-boot configuration file in another way.
The application.yml of spring-boot can be configured as follows:
If the configuration file is in xml format as follows:
//单次请求所有图片最大100Mb
server.tomcat.max-http-post-size: 104857600