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PONo adapter for handler in Spring MVC
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  1. PONo adapter for handler in Spring MVC
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    copied!<p>I have problem with simple spring mvc controller written in scala:</p> <pre><code>@Controller class HelloWorldController { implicit def sessionFactory2Session(sf: SessionFactory) = sf.getCurrentSes @Autowired var sessionFactory: SessionFactory = null @Transactional @RequestMapping(value=Array("/hello.html"),method = Array(RequestMethod.GET,RequestMethod.POST)) def showHello = { val document = new CustomDocument("name","custom") sessionFactory.save(document) sessionFactory.flush "helloPage" } } </code></pre> <p>When I tried to access /hello.html I received exception:</p> <pre><code>javax.servlet.ServletException: No adapter for handler: Does your handler implement a supported interface like Controller? at org.springframework.web.servlet.DispatcherServlet.getHandlerAdapter(DispatcherServlet.java:951) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:758) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:717) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549) </code></pre> <p>But when I removed @Transactional annotation - everything works!!. Spring can't find request mapping with two annotations? My applicationContext.xml fragment:</p> <pre><code> &lt;bean id="openSessionInViewInterceptor" class="org.springframework.orm.hibernate3.support.OpenSessionInViewInterceptor"&gt; &lt;property name="sessionFactory" ref="sessionFactory"/&gt; &lt;/bean&gt; &lt;bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"&gt; &lt;property name="interceptors"&gt; &lt;list&gt;&lt;ref bean="openSessionInViewInterceptor"/&gt;&lt;/list&gt; &lt;/property&gt; &lt;property name="alwaysUseFullPath" value="true" /&gt; &lt;/bean&gt; &lt;context:component-scan base-package="scala.hibernate"/&gt; &lt;bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver"&gt; &lt;property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/&gt; &lt;property name="prefix" value="/WEB-INF/jsp/"/&gt; &lt;property name="suffix" value=".jsp"/&gt; &lt;/bean&gt; &lt;!-- for transaction --&gt; &lt;bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManaager"&gt; &lt;property name="sessionFactory" ref="sessionFactory"/&gt; &lt;property name="dataSource" ref="dataSource"/&gt; &lt;/bean&gt; &lt;tx:annotation-driven/&gt; </code></pre> <p><strong>EDIT</strong></p> <p>Transactional aspect is applied using dynamic proxy, and it prevents Spring MVC from accessing the @RequestMapping annotations on the target class Solution:</p> <pre><code> &lt;tx:annotation-driven proxy-target-class="true"/&gt; </code></pre>
 

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