如何在 Spring Boot 中获取 DispatcherServeletInitializer 功能

我们正在寻求将我们的项目迁移到 Spring Boot。但目前尚不清楚如何复制其功能AbstractAnnotationConfigDispatcherServletInitializer在 Spring Boot 中？

public class AppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer
{
@Override
protected Class<?>[] getRootConfigClasses()
{
    return new Class<?>[]{AppConfig.class};
}

@Override
protected Class<?>[] getServletConfigClasses()
{
    return new Class<?>[]{WebappConfig.class};
}
@Override
protected void customizeRegistration(ServletRegistration.Dynamic registration) {
    registration.setAsyncSupported(true);
}

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

@Override
protected Filter[] getServletFilters()
{
    DelegatingFilterProxy shiroFilter = new DelegatingFilterProxy("shiroFilter");
    shiroFilter.setTargetFilterLifecycle(true);

    CompositeFilter compositeFilter = new CompositeFilter();
    compositeFilter.setFilters(ImmutableList.of(new CorsFilter(),shiroFilter));

    return new Filter[]{compositeFilter};
}

}

The AppConfig and WebappConfig父/子关系可以通过以下方式处理SpringApplicationBuilder，尽管您也可以考虑平面层次结构。

假设您全力以赴，并运行一个嵌入式 servlet 容器，您可以注册Filters and Servlets直接作为豆子。

您还可以使用ServletRegistrationBean and FilterRegistrationBean如果您需要设置诸如setAsyncSupported。最后的选择是添加一个实现org.springframework.boot.context.embedded.ServletContextInitializer然后自己进行注册。

像这样的事情可能会让你更进一步：

@Bean
public ServletRegistrationBean dispatcherServlet() {
    ServletRegistrationBean registration = new ServletRegistrationBean(
            new DispatcherServlet(), "/");
    registration.setAsyncSupported(true);
    return registration;
}

@Bean
public Filter compositeFilter() {
    CompositeFilter compositeFilter = new CompositeFilter();
    compositeFilter.setFilters(ImmutableList.of(new CorsFilter(), shiroFilter));
    return compositeFilter
}

另外，请查看参考手册中的这一部分http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#boot-features-embedded-container