Changing the context root of an application

Question

I have two servers (dev1 and dev2) an application with context root app is hosted on both these servers i can access these application by thier url e.g.

http://dev1:8080/app
http://dev2:8080/app

so want is

 http://dev1/app1 redirect to dev1 app   
 http://dev1/app2 redirect to dev2 app  

i have apache 2.2 installed on dev1 server and tried the following

httpd.conf

<IfModule rewrite_module>
     RewriteEngine On
     JkOptions +ForwardURICompat
     RewriteCond %{REQUEST_URI} ^(.*)app1(.*)$
     RewriteRule ^(.*)app1(.*)$  $1app$2 [PT,L]

     RewriteCond %{REQUEST_URI} ^(.*)app2(.*)$
     RewriteRule ^(.*)app2(.*)$  $1app$2    [PT,L] 
</IfModule>

worker.properties

worker.list=node1,node2

worker.node1.type=ajp13
worker.node1.host=dev1
worker.node1.port=8009


worker.node2.type=ajp13
worker.node2.host=dev2
worker.node2.port=8009

mod_jk.conf

JkMount /app1/ node1
JkMount /app1/* node1

JkMount /app2/ node2
JkMount /app2/* node2

EDIT: redirect is working now but all the application url are now redirecting to

http://dev1/app instead of (http://dev1/app1 or http://dev1/app2)