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PONull ModelAndView returned to DispatcherServlet
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  1. PONull ModelAndView returned to DispatcherServlet
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    copied!<p>I'm trying to run my web application using Spring, Hibernate and Apache Tiles. It seems the code has no errors, but I'm just getting a 404 page.</p> <p>/var/log/tomcat7/catalina.out:</p> <pre><code>DEBUG: org.springframework.web.servlet.DispatcherServlet - Servlet 'dispatcher' configured successfully DEBUG: org.springframework.web.servlet.DispatcherServlet - DispatcherServlet with name 'dispatcher' processing GET request for [/example/index.html] DEBUG: org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Looking up handler method for path /index.html DEBUG: org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Did not find handler method for [/index.html] DEBUG: org.springframework.web.servlet.handler.SimpleUrlHandlerMapping - Matching patterns for request [/index.html] are [/**] DEBUG: org.springframework.web.servlet.handler.SimpleUrlHandlerMapping - URI Template variables for request [/index.html] are {} DEBUG: org.springframework.web.servlet.handler.SimpleUrlHandlerMapping - Mapping [/index.html] to HandlerExecutionChain with handler [org.springframework.web.servlet.resource.DefaultServletHttpRequestHandler@32645ccb] and 1 interceptor DEBUG: org.springframework.web.servlet.DispatcherServlet - Last-Modified value for [/example/index.html] is: -1 DEBUG: org.springframework.web.servlet.DispatcherServlet - Null ModelAndView returned to DispatcherServlet with name 'dispatcher': assuming HandlerAdapter completed request handling DEBUG: org.springframework.web.servlet.DispatcherServlet - Successfully completed request </code></pre> <p>Servlet:</p> <pre><code>&lt;servlet&gt; &lt;servlet-name&gt;dispatcher&lt;/servlet-name&gt; &lt;servlet-class&gt;org.springframework.web.servlet.DispatcherServlet&lt;/servlet-class&gt; &lt;init-param&gt; &lt;param-name&gt;contextConfigLocation&lt;/param-name&gt; &lt;param-value&gt;classpath:/META-INF/spring/dispatcher-servlet.xml&lt;/param-value&gt; &lt;/init-param&gt; &lt;load-on-startup&gt;1&lt;/load-on-startup&gt; &lt;/servlet&gt; &lt;servlet-mapping&gt; &lt;servlet-name&gt;dispatcher&lt;/servlet-name&gt; &lt;url-pattern&gt;/&lt;/url-pattern&gt; &lt;/servlet-mapping&gt; </code></pre> <p>context:</p> <pre><code>&lt;mvc:annotation-driven /&gt; &lt;tx:annotation-driven /&gt; &lt;bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver"&gt; &lt;property name="viewClass" value="org.springframework.web.servlet.view.tiles2.TilesView" /&gt; &lt;/bean&gt; &lt;bean id="tilesConfigurer" class="org.springframework.web.servlet.view.tiles2.TilesConfigurer"&gt; &lt;property name="definitions"&gt; &lt;value&gt; /WEB-INF/**/tiles.xml &lt;/value&gt; &lt;/property&gt; &lt;/bean&gt; &lt;context:component-scan base-package="com.example.controller" /&gt; &lt;resources mapping="/resources/**" location="/resources/" /&gt; &lt;default-servlet-handler /&gt; &lt;context:property-placeholder location="classpath:jdbc.properties" /&gt; &lt;bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"&gt; &lt;property name="driverClassName" value="${jdbc.driverClassName}" /&gt; &lt;property name="url" value="${jdbc.url}" /&gt; &lt;property name="username" value="${jdbc.username}" /&gt; &lt;property name="password" value="${jdbc.password}" /&gt; &lt;/bean&gt; &lt;bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"&gt; &lt;property name="dataSource" ref="dataSource" /&gt; &lt;property name="packagesToScan" value="com.example.model" /&gt; &lt;property name="hibernateProperties"&gt; &lt;props&gt; &lt;prop key="hibernate.dialect"&gt;${hibernate.dialect}&lt;/prop&gt; &lt;prop key="hibernate.show_sql"&gt;${hibernate.show_sql}&lt;/prop&gt; &lt;prop key="hibernate.generate_statistics"&gt;${hibernate.generate_statistics}&lt;/prop&gt; &lt;/props&gt; &lt;/property&gt; &lt;/bean&gt; &lt;bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"&gt; &lt;property name="sessionFactory" ref="sessionFactory" /&gt; &lt;/bean&gt; </code></pre> <p>Maven dependencies:</p> <pre><code>&lt;properties&gt; &lt;java.version&gt;1.6&lt;/java.version&gt; &lt;spring.version&gt;3.1.1.RELEASE&lt;/spring.version&gt; &lt;slf4j.version&gt;1.6.4&lt;/slf4j.version&gt; &lt;/properties&gt; &lt;dependencies&gt; &lt;dependency&gt; &lt;groupId&gt;cglib&lt;/groupId&gt; &lt;artifactId&gt;cglib&lt;/artifactId&gt; &lt;version&gt;2.2.2&lt;/version&gt; &lt;/dependency&gt; &lt;!-- Spring --&gt; &lt;dependency&gt; &lt;groupId&gt;org.springframework&lt;/groupId&gt; &lt;artifactId&gt;spring-context&lt;/artifactId&gt; &lt;version&gt;${spring.version}&lt;/version&gt; &lt;exclusions&gt; &lt;!-- Exclude Commons Logging in favor of SLF4j --&gt; &lt;exclusion&gt; &lt;groupId&gt;commons-logging&lt;/groupId&gt; &lt;artifactId&gt;commons-logging&lt;/artifactId&gt; &lt;/exclusion&gt; &lt;/exclusions&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;org.springframework&lt;/groupId&gt; &lt;artifactId&gt;spring-orm&lt;/artifactId&gt; &lt;version&gt;${spring.version}&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;org.springframework&lt;/groupId&gt; &lt;artifactId&gt;spring-tx&lt;/artifactId&gt; &lt;version&gt;${spring.version}&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;org.springframework&lt;/groupId&gt; &lt;artifactId&gt;spring-webmvc&lt;/artifactId&gt; &lt;version&gt;${spring.version}&lt;/version&gt; &lt;/dependency&gt; &lt;!-- Logging --&gt; &lt;dependency&gt; &lt;groupId&gt;org.slf4j&lt;/groupId&gt; &lt;artifactId&gt;slf4j-api&lt;/artifactId&gt; &lt;version&gt;${slf4j.version}&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;org.slf4j&lt;/groupId&gt; &lt;artifactId&gt;jcl-over-slf4j&lt;/artifactId&gt; &lt;version&gt;${slf4j.version}&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;org.slf4j&lt;/groupId&gt; &lt;artifactId&gt;slf4j-log4j12&lt;/artifactId&gt; &lt;version&gt;${slf4j.version}&lt;/version&gt; &lt;scope&gt;runtime&lt;/scope&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;log4j&lt;/groupId&gt; &lt;artifactId&gt;log4j&lt;/artifactId&gt; &lt;version&gt;1.2.17&lt;/version&gt; &lt;scope&gt;runtime&lt;/scope&gt; &lt;/dependency&gt; &lt;!-- Hibernate --&gt; &lt;dependency&gt; &lt;groupId&gt;org.hibernate&lt;/groupId&gt; &lt;artifactId&gt;hibernate-core&lt;/artifactId&gt; &lt;version&gt;4.1.1.Final&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;postgresql&lt;/groupId&gt; &lt;artifactId&gt;postgresql&lt;/artifactId&gt; &lt;version&gt;9.1-901-1.jdbc4&lt;/version&gt; &lt;/dependency&gt; &lt;!-- Servlet --&gt; &lt;dependency&gt; &lt;groupId&gt;javax.servlet&lt;/groupId&gt; &lt;artifactId&gt;servlet-api&lt;/artifactId&gt; &lt;version&gt;2.5&lt;/version&gt; &lt;scope&gt;provided&lt;/scope&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;javax.servlet&lt;/groupId&gt; &lt;artifactId&gt;jstl&lt;/artifactId&gt; &lt;version&gt;1.2&lt;/version&gt; &lt;/dependency&gt; &lt;!-- Apache Tiles --&gt; &lt;dependency&gt; &lt;groupId&gt;org.apache.tiles&lt;/groupId&gt; &lt;artifactId&gt;tiles-jsp&lt;/artifactId&gt; &lt;version&gt;2.2.2&lt;/version&gt; &lt;exclusions&gt; &lt;!-- Exclude Commons Logging in favor of SLF4j --&gt; &lt;exclusion&gt; &lt;groupId&gt;commons-logging&lt;/groupId&gt; &lt;artifactId&gt;commons-logging-api&lt;/artifactId&gt; &lt;/exclusion&gt; &lt;/exclusions&gt; &lt;/dependency&gt; &lt;!-- JSR 303 with Hibernate Validator --&gt; &lt;dependency&gt; &lt;groupId&gt;javax.validation&lt;/groupId&gt; &lt;artifactId&gt;validation-api&lt;/artifactId&gt; &lt;version&gt;1.0.0.GA&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;org.hibernate&lt;/groupId&gt; &lt;artifactId&gt;hibernate-validator&lt;/artifactId&gt; &lt;version&gt;4.1.0.Final&lt;/version&gt; &lt;/dependency&gt; &lt;/dependencies&gt; </code></pre> <p>Before adding all the hibernate stuff I tried the web app and it worked just great. But what's a webapp without a database?</p> <p>I already spent hours on this and just can't find the problem...</p> <p><strong>UPDATE</strong></p> <p>Controller:</p> <pre><code>package com.example.controller; import java.util.Map; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller @RequestMapping("/") public class BlogController { @RequestMapping("/index.html") public String posts(Map&lt;String, Object&gt; map) { return "posts"; } } </code></pre>
 

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