[英]Spring MVC - DispatcherServlet by annotations
我有春季MVC应用程序。 它运行在Tomcat 7上。现在,我在web.xml文件中获得了这一部分:
<servlet>
<servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/app-config.xml
</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
有什么办法可以通过注释初始化它吗? 我有一个MainSettings.java
类,其中所有的bean都由@Bean
注释@Bean
。 那么我如何在那里初始化DispatherServlet
?
这是带有注释的示例。 希望这对您有所帮助。
public class ApplicationInitializer implements WebApplicationInitializer {
//Called first when the application starts loading.
public void onStartup(ServletContext servletContext)
throws ServletException {
System.out.println("Inside application initializer...");
//Registering the class that incorporates the annotated DispatcherServlet configuration of spring
AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
rootContext.register(DispatcherConfig.class);
//Adding the listener for the rootContext
servletContext.addListener(new ContextLoaderListener(rootContext));
//Registering the dispatcher servlet mappings.
ServletRegistration.Dynamic dispatcher = servletContext.addServlet("dispatcher", new DispatcherServlet(rootContext));
dispatcher.setLoadOnStartup(1);
dispatcher.addMapping("/");
}
}
之所以这样写,是因为Japs的答案导致了另一个上下文的创建,而该上下文看不到安全上下文的内容。
public class WebInitializer extends
AbstractAnnotationConfigDispatcherServletInitializer {
private static final Log LOGGER = LogFactory.getLog(WebInitializer.class);
@Override
protected Class<?>[] getRootConfigClasses() {
/* this is where you will return you config class
* your root config class should @Import other configs
* to make them work without needing them to add there
*/
return new Class[] { ViewConfig.class };
}
@Override
protected Class<?>[] getServletConfigClasses() {
return new Class[0];
}
@Override
protected String[] getServletMappings() {
return new String[] { "/" };
}
}
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