how to deploy war file into web root ?

Some times we need deploy our peoject into root directory of your domain (not sub directory), to solve the problem:

1. make war file (for example myproject.war)
2. rename the war file to ROOT.war (attention the filename must be uppercase)
3. deploy war file

now, you can see / in tomcat web application manager page that deployed in site root.

deploy war file without lib in Tomcat

At this post I'd talk about how to decrease size of big war files and make deployment faster.
I have a 15 MB war file and the size of lib (jar files) directory is 14.8 MB! So I need a solution that enables me to upload my project lib directory just for once and after that deploy my war file without lib directory.

At first I renamed my lib directory to myprojlib and then copied (for example using ftp) it to ${tomcat home}/common/lib folder on the server.
After that I modify catalina.properties file in ${tomcat home}/conf and add my myprojlib path to common.loader according below:

common.loader=${catalina.home}/common/classes,
${catalina.home}/common/i18n/*.jar,
${catalina.home}/common/endorsed/*.jar,
${catalina.home}/common/lib/*.jar,
${catalina.home}/common/lib/myprojlib/*.jar

Now save the file and restart my Tomcat.

After that I remove lib folder from my project and compile it without lib directory. Be careful don't package jar files in your project. My war file is
180KB now and I deploy it easily and I shouldn’t deploy 15 MB war file every time.