Spring Boot @Aspect J logging

Question

我使用REST控制器创建了测试Spring MVC应用程序。我想为我的某些方法应用方面，但是当这种方法被称为没有发生，我找不到原因。 这是我的配置和应用类：

@SpringBootApplication(scanBasePackages = "org.test") 
@EnableAspectJAutoProxy 
public class TestaopApplication { 

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

这是我的切面类：

@Aspect 
@Component 
public class Logging { 

private static final Logger logger = LoggerFactory.getLogger(GreetingController.class); 
@Pointcut("execution(* org.test.restspring.model.Greeting.getCreatedDate(..))") 
private void getDate(){} 

@Before("getDate()") 
public void beforeGettingDate(){ 
    logger.info("Date is asked"); 
} 

@After("getDate()") 
public void afterGettingDate(){ 
    logger.info("Date is received"); 
} 

}

这是我简单的bean：

@Component 
public class Greeting { 

private long id; 
private String content; 
private Date created; 

public Greeting() { } 
public Greeting(long id, String content) { 
    this.id = id; 
    this.content = content; 
    this.created = Calendar.getInstance().getTime(); 
} 

public long getId() { 
    return id; 
} 

public String getContent() { 
    return content; 
} 

public String getCreatedDate(){ 
    return created.toString(); 
} 
} 

这是我的控制器：

@RestController 
public class GreetingController { 

private static final String template = "Hello, %s!"; 
private static final Logger logger = LoggerFactory.getLogger(GreetingController.class); 
private final AtomicLong counter = new AtomicLong(); 

@RequestMapping("/greeting") 
public Greeting greeting(@RequestParam(value="name", defaultValue="World") String name) { 
    Greeting response = new Greeting(counter.incrementAndGet(), 
      String.format(template, name)); 
    logger.info(response.getCreatedDate()); 
    return response; 
} 


} 

请帮我解决这个问题。

Answer 1

通过显式构造函数调用创建的Bean（new Greeting(...)）不受Spring管理。这就是为什么你的方面不适用。

您可以尝试使用原型范围。通过这种方式，Spring为每个请求创建新的问候bean实例。

为豆：

@Component 
@Scope("prototype") 
public class Greeting { 

和控制器：

@RestController 
public class GreetingController { 

private static final String template = "Hello, %s!"; 
private static final Logger logger = LoggerFactory.getLogger(GreetingController.class); 
private final AtomicLong counter = new AtomicLong(); 

@Autowired 
private Greeting greeting; 

@RequestMapping("/greeting") 
public Greeting greeting(@RequestParam(value="name", defaultValue="World") String name) { 
    greeting.setId(counter.incrementAndGet()); 
    greeting.setContent(String.format(template, name)) 
    logger.info(response.getCreatedDate()); 
    return response; 
} 



}