REST API with Struts

Question

I'm trying to add a REST API to an existing struts 2 application.

The idea is to have part of the application using standard struts mapping, and another part using REST.

So I used the struts2-rest-plugin plugin, and added the following configuration:

struts.xml:

<constant name="rest" value="org.apache.struts2.rest.RestActionMapper"/>
<constant name="struts.mapper.class"   
  value="org.apache.struts2.dispatcher.mapper.PrefixBasedActionMapper"/>
<constant name="struts.mapper.prefixMapping" value="/rest:rest,/:struts"/>

struts.properties:

struts.action.extension=,htm,action,xml,json

TasksController.java:

package xxx.common.webservice.rest;

public class TasksController implements ModelDriven<Task> {

  public String update() {
    return "UPDATE";
  }

  // Handles /tasks/{id} GET requests
  public String show() {
    return "YES";
  }

  @Override
  public Task getModel() {
    // TODO Auto-generated method stub
    return null;
  }

}

With this configuration, the basic struts action work, but I can't get the REST actions to work. I also tried different struts.xml configurations (including the convention plugin options), but without any success, the mappings are never shown with the config-brower plugin.

Any idea of what I have missed or done wrong?

Answer 1

It finally worked, but it was a while ago and I don't remember exactly what I did, here is my configuration, hope this helps.

struts.xml

<constant name="struts.convention.action.mapAllMatches" value="true"/>
<constant name="struts.convention.package.locators" value="webservice"/>
<constant name="struts.convention.action.suffix" value="Controller"/>
<constant name="struts.convention.default.parent.package" value="rest-default"/>


<constant name="struts.mapper.class" value="org.apache.struts2.dispatcher.mapper.PrefixBasedActionMapper" />
<constant name="struts.mapper.prefixMapping" value="/rest:rest,:struts" />

<package name="home" namespace="/" extends="struts-default">
    ...
</package>

TaskController.java

package com.test.webservice.rest;

public class TaskController extends RestActionSupport implements
    ModelDriven<TaskDTO> {
      public final HttpHeaderResult show() {
         ...
      }
    ...
}