Question

我有一个Spring Boot应用程序，我正在实现和拦截器以便记录一些数据。问题是没有被呼叫，我已经尝试过：

@Interceptor
public class LoggerInterceptor{

    @AroundInvoke
    public Object collectBasicLoggingInformation(InvocationContext context) throws Exception {
        Logger logger = LoggerFactory.getLogger(context.getClass());
        logger.info("Method Called: " + context.getMethod()
                .getName());
        logger.info("Parameters: " + Arrays.toString(context.getParameters()));
        return context.proceed();
    }
}

然后我将其应用于方法或类，但在两者中均无效：

@GetMapping
@Interceptors(LoggerInterceptor.class)
public List getAllFilingNumber(){
    logger.info("This is a test");
    return filingNumberService.findAll();
}

或

@RestController
@RequestMapping(FilingNumberController.BASE_URL)
@Interceptors(LoggerInterceptor.class)
public class FilingNumberController{

    @GetMapping
    public List getAllFilingNumber(){
        logger.info("This is a test");
        return filingNumberService.findAll();
    }
}

有人知道我在做什么错吗？

谢谢

Answer 1

如果您具有springboot应用程序以拦截对控制器的请求，则必须采取不同的方法 altogethor。

拦截器与Java EE托管类结合使用 允许开发人员在关联目标上调用拦截器方法类，以及方法调用或生命周期事件。拦截器的常见用途是日志记录，审核和分析。参考Doc

您正在尝试将Java EE注释与spring一起使用，这将无法正常工作。在spring-boot中，您将必须注册拦截器，例如：

@Configuration
public class WebConfig implements WebMvcConfigurer {

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new LocaleChangeInterceptor());
        registry.addInterceptor(new ThemeChangeInterceptor()).addPathPatterns("/**").excludePathPatterns("/admin/**");
        registry.addInterceptor(new SecurityInterceptor()).addPathPatterns("/secure/*");
    }
}

拦截器本身必须是扩展HandlerInterceptorAdapter并实现以下方法的类。从春季DOCS开始：

所有HandlerMapping实现都支持处理程序拦截器当您想将特定功能应用于某些功能时非常有用请求，例如检查主体。拦截器必须从org.springframework.web.servlet实现HandlerInterceptor 包含三种方法的软件包，应提供足够的灵活性以做各种预处理和后处理：
preHandle(..): Before the actual handler is executed

postHandle(..): After the handler is executed

afterCompletion(..): After the complete request has finished

@Component
public class RequestInterceptor extends HandlerInterceptorAdapter {

 @Override
 public boolean preHandle(HttpServletRequest request, 
        HttpServletResponse response, Object object) throws Exception {
    System.out.println("we are Intercepting the Request");
    return true;
 }

 @Override
 public void postHandle(HttpServletRequest request, HttpServletResponse response, 
        Object object, ModelAndView model)
        throws Exception {
    System.out.println("request processing "
            + "completed by @RestController");

 }

 @Override
 public void afterCompletion(HttpServletRequest request, HttpServletResponse response, 
        Object object, Exception arg3)
        throws Exception {
    System.out.println("afterCompletion Request Completed");
 }
}

Java拦截器未调用

1 个答案: