When using command ./startup.sh in tomcat removed my symbolic link file.
How can I resolve this problem.
I don't want to remove my symbolic link file by tomcat.
Previous Description: My Environment [os: centos7, java: 1.8.0_131, spring version: 3.2.12.RELEASE]
<Host name="localhost" appBase="" unpackWars="true" autoDeply="true"> in apache-tomcat-8.5.15/conf/server.xmlmkdir /home/dataln -s /home/data apache-tomcat-8.5.15/uploadfiles, ln -s /home/data apache-tomcat-8.5.15/ROOT/uploadfiles/home/data apache-tomcat-8.5.15/ROOT/uploadfiles or /home/data apache-tomcat-8.5.15/uploadfiles./startup.shapache-tomcat-8.5.15/ROOT/uploadfilesI want use img file in symbolic link, from img tag path. but when excuted command ./startup.sh my removed img file. downloadservlet is not good at me.
Tomcat is doing exactly what you tell it to do: <Host ... unpackWars="true"> means that war-files will be unpacked, and Tomcat's webapps directory should not be messed around with.
Further more: It's really bad practice to have an upload-directory right in tomcat's webapps directory, as you're opening yourself up to remote code execution vulnerabilities. Assume someone uploads a JSP file, then requests it: It will be compiled server-side and executed with the same permissions that Tomcat has. Not a pretty result.
You're probably linking this directory to separate the application from uploaded files, for backup purposes. There's no need to map any directory into the webapps directory. Just provide a DownloadServlet that serves files from preconfigured locations and you're set.