title: There are two questions when i start jetty
body: <p>maven + jetty + spring 3.2</p>
  
  <p>My jetty infomation:</p>
  
  <pre><code>2013-03-08 20:16:23.541:INFO:oejs.Server:main: jetty-9.0.0.RC2
  2013-03-08 20:16:26.590:INFO:oejpw.PlusConfiguration:main: No Transaction manager found - if your webapp requires one, please configure one.
  [DEBUG][2013-03-08 20:16:35,801]-&gt;org.eclipse.jetty.util.log [Logging to org.slf4j.impl.Log4jLoggerAdapter(org.eclipse.jetty.util.log) via org.eclipse.jetty.util.log.Slf4jLog]
  2013-03-08 20:16:35.848:INFO:/:main: No Spring WebApplicationInitializer types detected on classpath
  2013-03-08 20:16:36.743:INFO:/:main: Initializing Spring FrameworkServlet 'app-servlet'
  </code></pre>
  
  <p>Jetty can't find the transaction manager but I have already configured it in my spring application-context(app-servlet.xml):</p>
  
  <pre><code>&lt;!-- 使用注解方式管理事务 --&gt;
      &lt;tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/&gt;
  &lt;!-- 配置事务管理 --&gt;
      &lt;bean id="transactionManager"
          class="org.springframework.orm.hibernate4.HibernateTransactionManager"&gt;
          &lt;property name="sessionFactory" ref="sessionFactory"&gt;&lt;/property&gt;
      &lt;/bean&gt;
  </code></pre>
  
  <p>And it says "No Spring WebApplicationInitializer types detected on classpath", I have also configured "app-servlet.xml" in web.xml:</p>
  
  <pre><code>&lt;!-- spring mvc的dispatcherServlet负责转发请求 --&gt;
      &lt;servlet&gt;
          &lt;servlet-name&gt;app-servlet&lt;/servlet-name&gt;
          &lt;servlet-class&gt;org.springframework.web.servlet.DispatcherServlet&lt;/servlet-class&gt;
          &lt;init-param&gt;
              &lt;!-- spring context文件 --&gt;
              &lt;param-name&gt;contextConfigLocation&lt;/param-name&gt;
              &lt;param-value&gt;
                  classpath*:/spring/**/app-*.xml
              &lt;/param-value&gt;
          &lt;/init-param&gt;
          &lt;!-- 服务启动的时候第一个将此servlet初始化加载，非零的时候，数字越小，优先级越高 --&gt;
          &lt;load-on-startup&gt;1&lt;/load-on-startup&gt;
      &lt;/servlet&gt;
  </code></pre>
  
  <p>My pom.xml:</p>
  
  <pre><code>&lt;!-- jetty --&gt;
              &lt;plugin&gt;
                  &lt;groupId&gt;org.eclipse.jetty&lt;/groupId&gt;
                  &lt;artifactId&gt;jetty-maven-plugin&lt;/artifactId&gt;
                  &lt;version&gt;9.0.0.RC2&lt;/version&gt;
              &lt;/plugin&gt;
  </code></pre>
  
  <p>Why did jetty warn me like that? How can I eliminate these abnormal infomation?
  Thank for answer these two questions.</p>