After the server.xml configuration of tomcat is modified, the website must be restarted once to take effect!
I suffered from this problem today, although I modified the configuration parameters, but because I did not restart the website, it has been kept, and the path mapping of the picture and video cannot be found.
After restarting the site, it was back to normal. It means that after this configuration is modified, the website must be restarted immediately. Please be informed. to avoid detours.
Click Running, Disable, and then click Enable again. You can restart the website.