How to add a RequestContextListener with no-xml configuration?

问题

I need to add a listener to my Spring Boot application, in web.xml it looks like

<listener>
 <listener-class>
    org.springframework.web.context.request.RequestContextListener
 </listener-class>
</listener>

I use no-web.xml configuration, so I've got a class like

public class AppFilterConfig extends AbstractAnnotationConfigDispatcherServletInitializer {

@Override
protected Filter[] getServletFilters() {
    CharacterEncodingFilter filter = new CharacterEncodingFilter();
    filter.setEncoding("UTF8");
    filter.setForceEncoding(true);
    Filter[] filters = new Filter[1];
    filters[0] = filter;
    return filters;
}

private int maxUploadSizeInMb = 5 * 1024 * 1024; // 5 MB

@Override
protected Class<?>[] getRootConfigClasses() {
    return null;
}

@Override
protected Class<?>[] getServletConfigClasses() {
    return null;
}

@Override
protected String[] getServletMappings() {
    return new String[]{"/"};
}

@Override
protected void registerDispatcherServlet(ServletContext servletContext) {
    super.registerDispatcherServlet(servletContext);
    servletContext.addListener(new HttpSessionEventPublisher());

}

@Override
public void onStartup(ServletContext servletContext) throws ServletException     {

    super.onStartup(servletContext);
    servletContext.addListener(new RequestContextListener());
}

}

As seen from code above, I have added a listener to onStartup(ServletContext servletContext) method, but it doesn't help as I still get

In this case, use RequestContextListener or RequestContextFilter to expose the current request.

this message. How can I properly add a listener to my Spring Boot Application?

回答1:

I created this class and that solved my issue.

@Configuration
@WebListener
public class MyRequestContextListener extends RequestContextListener {
}

回答2:

Write your own listener class which extends from RequestContextListener and register it via annotation. Something like this:

@WebListener
public class MyRequestContextListener extends RequestContextListener {
}

来源：https://stackoverflow.com/questions/38202621/how-to-add-a-requestcontextlistener-with-no-xml-configuration

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java

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spring-boot

oauth2