WeChat applet you recently doing, met a file upload, upload pictures there is no problem in the local development environment, the deployment to the cloud server error




Check it on the website a Tomcat version of the problem, change 9.0.31 version of Tomcat to 8.5.51 can, but I used to elasticsearch project, cannot fall springboot version,

Also check a lot of down version of the online method




These methods are tried, will report an error





Hope to have a big help to solve this problem, I use is springboot 2.2.5 RELEASE version,