|
This is a Java servlet filter (as per Servlet API 2.3). DomainFilter lets work with sub-domains on your host. Filter forwards all the subdomain's incoming requests to some sub-directory on your site. So it is like a mapping: map some sub-domain on your host to some directory on your server. How to use it: a) download domainPackage.jar and save it in WEB-INF/lib b) describe this filter in web.xml file. You must provide two initial
parameters: domain for your subdomain description and dir
for setting the redirection. E.g.:
<filter> <filter-name>DomainFilter</filter-name> <filter-class>com.cj.domain.DomainFilter</filter-class> <init-param> <param-name>domain</param-name> <param-value>http://test.acme.com</param-value> </init-param> <init-param> <param-name>dir</param-name> <param-value>/sub/test</param-value> </init-param> </filter> here filter prepares to forward all the requests to http://test.acme.com (parameter domain) to the directory /sub/test/ (parameter dir). c) describe a mapping for this filter in web.xml
<filter-mapping> <filter-name>DomainFilter</filter-name> <url-pattern>*</url-pattern> </filter-mapping> and now all the requests to the http://test.acme.com will be forwarded to the directory /sub/test/. You can use regular expressions in the initial parameters as well use this filter as simply redirection tool. For example:
<filter> <filter-name>DomainFilter</filter-name> <filter-class>com.cj.domain.DomainFilter</filter-class> <init-param> <param-name>domain</param-name> <param-value>http://mydomain.com/user/(.*)</param-value> </init-param> <init-param> <param-name>dir</param-name> <param-value>/users/$1</param-value> </init-param> </filter> If the target URL starts with http
than request will be redirected. Otherwise filter assumes a local resource and forwards request.
For downloading: domainPackage.jar
See also JSOS - the largest collection of servlets and filters. |
Also in JSOS:
|