问题
While development I need to frequently update my web app source code & deploy the updated war to a remote Tomcat server. Uploading a big war(25MB) takes too long(around 30 min) on my connection which is very unproductive. Is there any way I could reduce the war size ? There are a lot of external dependencies in my project. Could I deploy just the changes(may be dependencies remain intact) ?
回答1:
What you are asking (Could I deploy just the changes?) cannot be done. There are other things you can do though to reduce the file size of your war file:
- You can place libraries in tomcat's common directory (tomcat-dir/common/lib) and remove them from your dependencies in your war file (Does Tomcat load the same library file into memory twice if they are in two web apps?).
- Place static file on a cdn or another web application on your tomcat (that would require code modification though)
回答2:
It depends how much control you have over the upload process. If you have remote access to the filesystem, the following should work:
- Upload the WAR
- Let Tomcat expand it
- Stop Tomcat
- Delete the WAR
- Start Tomcat
- Tomcat should run your app from the expanded directory
- Upload changed files only and replace the old ones in the expanded directory
- For static files, no further action is necessary
- If up update classes or JARs, you'll need to restart Tomcat
回答3:
You can use git hooks (http://www.git-scm.com/book/en/v2/Customizing-Git-Git-Hooks). Altough, this requires a git repository on your webserver. Deployments may triggered by push events.
回答4:
Actually, if exploded war deployment is an option for you then you could use kwatee. It's a free and unrestricted tool (I'm the author) with a simple web interface (or CLI automation) that can do incremental exploded war updates and many other things.
来源：https://stackoverflow.com/questions/18525641/reduce-war-size-for-frequent-redeploymentsuploads-to-a-remote-server