我正在尝试将基于 xml 的 Spring MVC 应用程序移动到基于 Java 配置的应用程序。似乎与 maven 中可用的各种 java.servlet 类不匹配。例如,有些提供 addServlet() 方法,有些不提供。
这是我的配置类:
public class MyWebAppInitializer implements WebApplicationInitializer {
@Override
public void onStartup(ServletContext container) throws ServletException {
AnnotationConfigWebApplicationContext rootContext =
new AnnotationConfigWebApplicationContext();
rootContext.register(JpaSandboxConf.class);
ServletRegistration.Dynamic registration = container.addServlet("dispatcher", new DispatcherServlet());
registration.setLoadOnStartup(1);
registration.addMapping("/myapp/*");
}
}
这似乎没有争议。为了得到
container.addServlet()
方法,我在我的pom中包含了这个:
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-servlet-api</artifactId>
<version>7.0.30</version>
</dependency>
我试过这个,但是下面条目中的 ServletContext 类不起作用(因为它没有提供 addServlet() 方法):
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>com.springsource.javax.servlet</artifactId>
<version>2.5.0</version>
<scope>provided</scope>
</dependency>
当我尝试使用
mvn clean tomcat7:run
我不高兴地得到
SEVERE: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[/]]
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:252)
at java.util.concurrent.FutureTask.get(FutureTask.java:111)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1130)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:782)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1568)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1558)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[/]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
... 7 more
Caused by: java.lang.ClassCastException: org.springframework.web.SpringServletContainerInitializer cannot be cast to javax.servlet.ServletContainerInitializer
at org.apache.catalina.startup.ContextConfig.getServletContainerInitializer(ContextConfig.java:1543)
at org.apache.catalina.startup.ContextConfig.processServletContainerInitializers(ContextConfig.java:1464)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1190)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:825)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:300)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5161)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 7 more
我看到一个类来自 Spring 框架,另一个来自 javax.servlet,但是再一次,Spring 提供的类中不存在该方法(这令人沮丧,因为这个示例存在于 Spring 3.2 文档本身中。
我正在使用 Spring 3.2。我没有使用 Eclipse(所有示例都是基于 Eclipse,我在 IntelliJ 中)。这是一个Maven项目
我非常感谢您的帮助。