i am trying to deploy two web applications say appA and appB in same local host tomcat server and when the both the applications are up in running is it possible to call appB to appA using ajax call or redirect

解決方案

What you are looking for toa chieve can be done using the following tomcat parameter:

(from docs)

crossContext

Set to true if you want calls within this application to ServletContext.getContext() to successfully return a request dispatcher for other web applications running on this virtual host. Set to false (the default) in security conscious environments, to make getContext() always return null.

example:

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