在Spring Boot中为Servlet配置添加过滤器


问题内容

我正在使用spring-boot-starter-web捆绑包来构建一个基于spring-batch-admin的webapp。

@Configuration
@EnableAutoConfiguration(exclude = { BatchAutoConfiguration.class, DataSourceAutoConfiguration.class, WebMvcAutoConfiguration.class })
@Import(MainConfiguration.class)
@EnableTransactionManagement
public class BatchAdmin extends SpringBootServletInitializer {

  public static void main(String[] args) {
    SpringApplication.run(BatchAdmin.class, args);
  }
  // ...
}

@Configuration
@ComponentScan("com.company.package*")
@Import({ ServletConfiguration.class, WebappConfiguration.class })
public class MainConfiguration {}

@Configuration
@ImportResource("classpath:/org/springframework/batch/admin/web/resources/servlet-config.xml")
public class ServletConfiguration {}

@Configuration
@ImportResource({ "classpath:/org/springframework/batch/admin/web/resources/webapp-config.xml","classpath:persistence-context.xml" })
public class WebappConfiguration {}

如何使用Java配置样式将此过滤器添加到Servlet上下文?

<filter-mapping>
    <filter-name>hiddenHttpMethodFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

问题答案:

有时候(但不是经常),查阅文档比询问SO社区要快。

根据官方的spring-boot文档,我必须将以下bean定义添加到BatchAdmin类中。

@Bean
public Filter hiddenHttpMethodFilter() {
   HiddenHttpMethodFilter filter = new HiddenHttpMethodFilter();
   return filter;
}