@smd annotation

example.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
        "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>

    <package name="example" namespace="/example" extends="default">

        <action name="HelloWorld" class="example.HelloWorld">
            <result>/example/HelloWorld.jsp</result>
        </action>

        <action name="Login_*" method="{1}" class="example.Login">
            <result name="input">/example/Login.jsp</result>
            <result type="redirectAction">Menu</result>
        </action>

        <action name="*" class="example.ExampleSupport">
            <result>/example/{1}.jsp</result>
        </action>

        <!-- Add actions here -->
    </package>
    <constant name="struts.ognl.allowStaticMethodAccess" value="true"/>
    <package name="example2" namespace="/example2" extends="json-default">
        <action name="smdAction" class="example.SMDAction" method="smd">
            <interceptor-ref name="json">
                <param name="enableSMD">true</param>
                <param name="ignoreSMDMethodInterfaces">false</param>
            </interceptor-ref>
            <result type="json">
                <param name="enableSMD">true</param>
                <param name="contentType">text/html</param>
                <param name="ignoreInterfaces">false</param>
            </result>
        </action>
    </package>
</struts>

output.json

{"methods":[
    {
        "name":"method1",
        "parameters":[
            {
                "name":"p0"
            }
        ]
    },
    {
        "name":"method2",
        "parameters":[
            {
                "name":"p0"
            }
        ]
    }
], "objectName":"testaction",
    "serviceType":"JSON-RPC",
    "serviceUrl":"\/struts2-blank\/example2\/smdAction.action",
    "version":"10.0"}

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
/*
 * $Id: pom.xml 1337583 2012-05-12 16:06:55Z lukaszlenart $
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
-->
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.apache.struts</groupId>
        <artifactId>struts2-apps</artifactId>
        <version>2.3.5-SNAPSHOT</version>
    </parent>
    <groupId>org.apache.struts</groupId>
    <artifactId>struts2-blank</artifactId>
    <packaging>war</packaging>
    <name>Blank Webapp</name>

    <scm>
        <connection>scm:svn:http://svn.apache.org/repos/asf/struts/struts2/trunk/apps/blank/</connection>
        <developerConnection>scm:svn:https://svn.apache.org/repos/asf/struts/struts2/trunk/apps/blank/</developerConnection>
        <url>http://svn.apache.org/viewcvs.cgi/struts/struts2/trunk/apps/blank/</url>
    </scm>

    <dependencies>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jsp-api</artifactId>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>${project.groupId}</groupId>
            <artifactId>struts2-json-plugin</artifactId>
            <version>${project.version}</version>
        </dependency>
        <dependency>
            <groupId>${project.groupId}</groupId>
            <artifactId>struts2-junit-plugin</artifactId>
            <version>${project.version}</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.mortbay.jetty</groupId>
                <artifactId>maven-jetty-plugin</artifactId>
                <version>6.0.1</version>
                <configuration>
                    <scanIntervalSeconds>10</scanIntervalSeconds>
                    <scanTargets>
                        <scanTarget>src/main/webapp/WEB-INF</scanTarget>
                        <scanTarget>src/main/webapp/WEB-INF/web.xml</scanTarget>
                        <scanTarget>src/main/resources/struts.xml</scanTarget>
                        <scanTarget>src/main/resources/example.xml</scanTarget>
                    </scanTargets>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

SMDAction.java

/*
 * $Id$
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package example;

import com.opensymphony.xwork2.Action;
import org.apache.struts2.json.annotations.SMD;
import org.apache.struts2.json.annotations.SMDMethod;

import java.util.List;

/**
 * User: mcucchiara
 * Date: 24/09/12
 * Time: 9.59
 */
/* Following annotation seems to not working*/
@SMD(objectName = "testaction", serviceType = "JSON-RPC", version = "10.0")
public class SMDAction {
    public SMDAction() {
    }

    public String smd() {
        return Action.SUCCESS;
    }


    @SMDMethod
    public Object[] method1(List<String> fruits) {
        return null;
    }

    @SMDMethod
    public Object[] method2(List<String> animals) {
        return null;
    }
}