使 Aspectj 在 Spring servlet bean 上工作

Question

我正在尝试让 aspectprofiler 在 spring 项目中注册的 Jersey servlet 上工作。加载了 aspectprofiler，但没有注意到 Jersey servlet 中的方法是运行。

@EnableAutoConfiguration
@Configuration
@EnableAspectJAutoProxy(proxyTargetClass = true)
public class App {
    public static void main(final String[] args) {
        final SpringApplicationBuilder sab = new SpringApplicationBuilder(ConsolidatedCustomerMasterApp.class);
        sab.run(args);
    }

    @Bean
    public ServletRegistrationBean jerseyServlet() {
        final ServletRegistrationBean registration = new ServletRegistrationBean(new ServletContainer(), "/*");
        registration.addInitParameter(ServletProperties.JAXRS_APPLICATION_CLASS, JerseyInitialization.class.getName());
        return registration;
    }

    @Bean
    public AspectProfiler profiler() {
        return new AspectProfiler();
    }
}

...

public class JerseyInitialization extends ResourceConfig {

    public JerseyInitialization() {
        packages("com.example.package");
    }

...

package com.example.package;

//imports
@Path("/test")
public class RestService {

    @GET
    @Path("test")
    @Produces(MediaType.TEXT_PLAIN)
    public String test() {
        return "Something";
    }
}

...

@Aspect
public class AspectProfiler {
    private static final DefaultApplicationProfiler PROFILER = new DefaultApplicationProfiler(
        Arrays.<ProfilerOperator> asList(
            new StatsdProfilerOperator(),
            new LoggingProfilerOperator())
            );

    private static final String REST_MATCHER =
            "execution(* com.example.package..*.*(..))";

    @Around(REST_MATCHER)
    public Object around(final ProceedingJoinPoint joinPoint) throws Throwable {
        System.out.println("test");
        return PROFILER.around(joinPoint);
    }   
}

Answer 1

除了制作 Jersey 资源类 Spring @Components（以及 @ComponentScaning 之外），您还需要制作 ResourceConfig一个Spring@Component也。您可以在 Spring Boot JerseyAutoConfigurer 中看到它自动装配 ResourceConfig，它用于 ServletContainer 注册。

还要注意的一件事是它创建了自己的 ServletRegistrationBean

public ServletRegistrationBean jerseyServletRegistration() {
    ServletRegistrationBean registration = new ServletRegistrationBean(
            new ServletContainer(this.config), this.path);
    addInitParameters(registration);
    registration.setName("jerseyServlet");
    return registration;
}

当您声明自己的时，您将覆盖这个。您没有添加任何尚未提供的特殊功能，因此只需保留默认值即可。可以在 application.properties 文件中或通过代码配置添加任何 Jersey 特定配置。

至于依赖项，我假设您拥有所有正确的依赖项。以下是我用来测试的

<!-- all 1.2.7.RELEASE -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-jersey</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-tomcat</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-aop</artifactId>
</dependency>

另请参阅：

使 Aspectj 在 Spring servlet bean 上工作

Making Aspectj work on a Spring servlet bean

aop

aspectj

jersey-2.0

spring-boot