Tapping into Stripes - Stripes...and Java Web Development is Fun Again - page 276

For example, instead of this:
/ContactList.action?view=&contact=7
we might have this:
/action/contact_list/view/7

Notice the “cleanliness” of the second URL compared to the first: no
extension, no question mark, no ampersand, no equal sign. The first
thing we need to do to use these clean URLs is change the mapping of
the Stripes dispatcher servlet in the web.xml file from a suffix, such as
. action , to a prefix, such as /action :

Download email_31/web/WEB-INF/web.xml

<servlet-mapping>
<servlet-name> DispatcherServlet </servlet-name>
<url-pattern> /action/ * </url-pattern>
</servlet-mapping>

With this mapping, Stripes handles all URLs with the /action prefix.
Next, we'll make the corresponding changes in NameBasedActionResolver
by overriding getBindingSuffix ( ) and getUrlBinding ( ). At a minimum, get-
BindingSuffix ( ) must return an empty string, and getUrlBinding ( ) must call
super.getUrlBinding ( ) and add the "/action" prefix to the result. Just for
fun, we'll also convert the URL binding to all lowercase with under-
scores:

Download email_31/src/stripesbook/ext/MyActionResolver.java

package stripesbook.ext;
public class MyActionResolver extends NameBasedActionResolver {
@Override
protected String getBindingSuffix() {
return "";

}
@Override
protected String getUrlBinding(String actionBeanName) {
String result = super .getUrlBinding(actionBeanName);
result = convertToLowerCaseWithUnderscores(result);
return "/action" + result;

}
private String convertToLowerCaseWithUnderscores(String string) {
StringBuilder builder = new StringBuilder();
for ( int i = 0, t = string.length(); i < t; i++) {
char ch = string.charAt(i);
if (Character.isUpperCase(ch)) {
ch = Character.toLowerCase(ch);
if (i > 1) {
builder.append('_');

}

}
builder.append(ch);

}