servlet上下文到tomcat 7 root

Question

Whats the best approach to place servlet context to tomcat 7 root? I have tried this post here but didn't work for me; i'm using Apache Tomcat/7.0.42 .

PS: I don't want to rename the project name as ROOT.war .

Update

I have placed the context tag as explained in one of the answers, but still getting the tomcat home page as root:

<Host name="localhost"  appBase="webapps"               
   <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
         prefix="localhost_access_log." suffix=".txt"
         pattern="%h %l %u %t &quot;%r&quot; %s %b" />    
   <Context docBase="app-renderer" path="/" reloadable="true" />
 </Host>

Update 2

the problem was about the ROOT directory in webapps , after removing now I could have the app as root.

Answer 1

In your Tomcat's conf/server.xml file, you'll typically have an entry

<Context docBase="yourApp" path="/somePath" reloadable="true" source="someSource"/>

for your application.

Change the path to /

<Context docBase="yourApp" path="/" reloadable="true" source="someSource"/>

Add this in the Host entry. For example

<Host name="localhost"  appBase="webapps"
        unpackWARs="true" autoDeploy="true">

    <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
           prefix="localhost_access_log." suffix=".txt"
           pattern="%h %l %u %t &quot;%r&quot; %s %b" />
<Context docBase="yourApp" path="/" reloadable="true" />
</Host>

where the docBase attribute is the name of your app as it appears in the webapps folder. The docs explain the meaning of each attribute.

Answer 2

check the context documentation . You're looking for the docBase attribute for your webapp's path and the path attribute for the root context, eg leave it empty as described in the attribute's documentation.

Answer 3

Without changing the .war file to ROOT follow below steps:

1. Create a file named ROOT.xml under the tomcat/conf/Catalina/localhost/

2. paste below code into the ROOT.xml file:

<Context
  docBase="/home/user/YOUR_PROJECT/target/YOUR_PROJECT.war"
  path=""
  reloadable="true"
/>

Now you can access your project in tomcat root.

To have a clean project remove tomcat/webapps/ROOT directory.