@Configuration
    @Component
    public class OAuth2ServerConfiguration {

        private static final String RESOURCE_ID = "restservice";

        @Configuration
        @Component
        @EnableResourceServer
        @Order(3)
        protected static class ResourceServerConfiguration extends ResourceServerConfigurerAdapter {
            @Override
            public void configure(ResourceServerSecurityConfigurer resources) {
                resources.resourceId(RESOURCE_ID);
            }

            @Override
            public void configure(HttpSecurity http) throws Exception {
                http.authorizeRequests().antMatchers("/users").hasRole("ADMIN").antMatchers("/greeting").authenticated();
            }
        }

        @Configuration
        @Component
        @EnableAuthorizationServer
        protected static class AuthorizationServerConfiguration extends AuthorizationServerConfigurerAdapter {
            private TokenStore tokenStore = new InMemoryTokenStore();

            @Autowired
            @Qualifier("authenticationManagerBean")
            private AuthenticationManager authenticationManager;

            @Autowired
            private CustomUserDetailsService userDetailsService;

            @Override
            public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
                endpoints.tokenStore(this.tokenStore).authenticationManager(this.authenticationManager)
                        .userDetailsService(userDetailsService);
            }

            @Override
            public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
                clients.inMemory().withClient("clientapp").authorizedGrantTypes("password", "refresh_token")
                        .authorities("USER").scopes("read", "write").resourceIds(RESOURCE_ID).secret("123456");
            }

            @Bean
            @Primary
            public DefaultTokenServices tokenServices() {
                DefaultTokenServices tokenServices = new DefaultTokenServices();
                tokenServices.setSupportRefreshToken(true);
                tokenServices.setTokenStore(this.tokenStore);
                return tokenServices;
            }
        }
    }

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:context="http://www.springframework.org/schema/context"
        xmlns:jpa="http://www.springframework.org/schema/data/jpa"
        xmlns:oauth2="http://www.springframework.org/schema/security/oauth2"
        xsi:schemaLocation="http://www.springframework.org/schema/security/oauth2 http://www.springframework.org/schema/security/spring-security-oauth2.xsd
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
            http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.8.xsd">

        <context:annotation-config base-package="net.mmm.ma"></context:annotation-config>
        <context:component-scan base-package="net.mmm.ma" />
        <jpa:repositories base-package="net.mmm.ma"></jpa:repositories>


        <bean id="dataSource"
            class="org.springframework.jdbc.datasource.DriverManagerDataSource">
            <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
            <property name="url" value="jdbc:mysql://localhost:3306/test20"></property>
            <property name="username" value="root"></property>
            <property name="password" value=""></property>
        </bean>
        <bean id="persistenceUnitManager"
            class="org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager">
            <property name="persistenceXmlLocations">
                <list>
                    <value>classpath*:META-INF/persistence.xml</value>
                </list>
            </property>
            <property name="defaultDataSource" ref="dataSource"></property>
        </bean>
        <bean id="entityManagerFactory"
            class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
            <property name="persistenceUnitManager" ref="persistenceUnitManager"></property>
            <property name="persistenceUnitName" value="MY_P"></property>
        </bean>
        <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
            <property name="entityManagerFactory" ref="entityManagerFactory"></property>
        </bean>
    </beans>

<?xml version="1.0" encoding="UTF-8"?>
    <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">

        <!-- The definition of the Root Spring Container shared by all Servlets
            and Filters -->
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath*:applicationContext.xml</param-value>
        </context-param>

        <!-- Creates the Spring Container shared by all Servlets and Filters -->
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>

        <!-- Processes application requests -->
        <servlet>
            <servlet-name>appServlet</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            <init-param>
                <param-name>contextConfigLocation</param-name>
                <param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
            </init-param>
            <load-on-startup>1</load-on-startup>
        </servlet>

        <servlet-mapping>
            <servlet-name>appServlet</servlet-name>
            <url-pattern>/*</url-pattern>
        </servlet-mapping>
    </web-app>