CODEWITHSUNDEEP
tomcat
FrontierPsycho
FrontierPsycho

Reputation: 743

Can I deploy different versions of the same war on different paths?

I'd like to deploy multiple versions of a .war on the same Tomcat, on different paths. For example, I'd like old.war to serve requests on /, and then new.war to serve requests under /new/.

The wars will contain different versions of the same code, so mostly the same packages/classes. This also means they will serve the same endpoints, but naturally with different prefixes (eg, when a request comes for /someendpoint, it should be served by old.war, and when another comes for /new/someendpoint, it should be served by new.war).

Upvotes: 1

Views: 1943

Answers (2)

Chetan
Chetan

Reputation: 5085

Yes its definitely possible. The only thing to take care about is that no two names of war should be equal.

A good strategy would be use a naming convention to your war. Say eg: project_0_0_1.war and the next one as project_0_0_2.war and so on. You would be then able to deploy different version and yet use all of them

Upvotes: 1

Jeff Miller
Jeff Miller

Reputation: 1434

The simple answer is yes. Name them ROOT.war and new.war.

It gets complicated when using ROOT.war since all url references contain empty context

someserver/someendpoint

but new.war will have "new" in all of the paths

someserver/new/someendpoint

My approach was to always use relative url references with the application or to set a application scoped variable with the server for context name and then use 

servletContext.setAttribute("cp", contextPath);

${cp}/someendpoint in generated urls.

It is easier if you don't use ROOT.war but instead use old.war and new.war.

Upvotes: 3

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