如何使多个Spring HandlerInterceptors按特定顺序执行

Question

我目前正在从事一个Spring引导项目。我依赖于一个具有interceptor(LibraryProjectInterceptor.java)和public class LibraryProjectConfig implements WebMvcConfigurer并重写addInterceptors()方法以将LibraryProjectInterceptor添加到InterceptorRegistry的库项目。在我添加了这个库项目依赖项的实际项目中，我创建了一个拦截器(ActualProjectInterceptor)，它需要在执行LibraryProjectInterceptor之后执行。我尝试过将@Order(value = Ordered.LOWEST_PRECEDENCE)添加到ActualProjectInterceptor中，以使其在LibraryProjectInterceptor之后执行，但它不起作用。有人能帮我吗

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，我希望它能起作用。

@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，该对象具有指定所需内容的order()方法。