如何使多个 Spring HandlerInterceptor 以特定顺序执行

Question

我目前正在开发一个 Spring Boot 项目。我依赖于一个库项目，该库项目有一个拦截器（LibraryProjectInterceptor.java）和一个public class LibraryProjectConfig implements WebMvcConfigurer，并覆盖addInterceptors() 方法以将LibraryProjectInterceptor 添加到InterceptorRegistry。在我添加此库项目依赖项的实际项目中，我创建了一个拦截器（ActualProjectInterceptor），需要在执行LibraryProjectInterceptor 之后执行。我尝试将@Order(value = Ordered.LOWEST_PRECEDENCE) 添加到ActualProjectInterceptor 以使其在LibraryProjectInterceptor 之后执行，但它不起作用。谁能帮帮我

图书馆项目：

public class LibraryProjectInterceptor implements HandlerInterceptor {
 ......
}




  @Configuration
  @EnableWebMVC
  public class LibraryProjectConfig implements WebMvcConfigurer {
    ......
        @Override
            public void addInterceptors(InterceptorRegistry registry) {
                registry.addInterceptor(LibraryProjectInterceptor);
            }
    ......
    }

实际项目： pom.xml

 ......

<dependencies>
 <dependency> 
   <groupId>com.example</groupId>
   <artifactId>library-project</artifactId>
   <version>1.0.16</version>
 </dependency>
 ......

@Component
@Order(value = Ordered.LOWEST_PRECEDENCE)
public class ActualProjectInterceptor implements HandlerInterceptor{
.......
}

@SpringBootApplication
public class ActualProjectConfig implements WebMvcConfigurer {
......
    @Override
        public void addInterceptors(InterceptorRegistry registry) {
            registry.addInterceptor(ActualProjectInterceptor);
        }
......
}

Answer 1

试试这个，我希望它会工作。

@Component
public class ActualProjectInterceptor implements HandlerInterceptor {}

@SpringBootApplication
public class ActualProjectConfig implements WebMvcConfigurer {

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(ActualProjectInterceptor)
                .order(Ordered.LOWEST_PRECEDENCE);
    }
}

addInterceptor() 方法创建 InterceptorRegistration DSL 对象，该对象具有 order() 方法来指定您需要的内容。