现象：
日志报错：
2021-11-10 12:52:37.720 [http-nio-1111-exec-5] ERROR o.a.c.c.C.[.[.[/pdwy-app].[dispatcherServlet] - Servlet.service() for servlet [dispatcherServlet] in context with path [/pdwy-app] threw exception [Request processing failed; nested exception is org.springframework.web.multipart.MultipartException: Could not parse multipart servlet request; nested exception is java.lang.IllegalStateException: org.apache.tomcat.util.http.fileupload.FileUploadBaseFileSizeLimitExceededException: The field imgFile exceeds its maximum permitted size of 1048576 bytes.
at org.apache.tomcat.util.http.fileupload.FileUploadBaseFileItemStreamImpl
ConnectionHandler.process(AbstractProtocol.java:868)
at org.apache.tomcat.util.net.NioEndpointWorker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThreadFileSizeLimitExceededException: The field imgFile exceeds its maximum permitted size of 1048576 bytes.t java.lang.Thread.run(Thread.java:748)
[root@localhost pdwy-app]# ll
解决：
在配置文件中添加如图配置：
