@ControllerAdvice不處理拋出的異常

Question

存儲庫：

@Repository 
public class UserRepositoryImpl implements UserRepository { 
@PersistenceContext 
public EntityManager entityManager; 
public User findUserById(Long id) throws RepositoryException { 
    try { 
     User foundUser = entityManager.find(User.class, id); 
     if (foundUser == null) { 
      throw new RepositoryException(); 
     } 
     return foundUser; 
    } catch (Exception e) { 
     throw new RepositoryException(); 
    } 
} 
} 

服務類：

@Service 
@Transactional(rollbackFor = DataIntegrityViolationException.class) 
public class UserServiceImpl implements UserService { 

private UserRepository userRepository; 

@Autowired 
public void setUserRepository(UserRepository userRepository) { 
    this.userRepository = userRepository; 
} 

public User findUserById(Long id) throws ServiceException { 
    try { 
     return userRepository.findUserById(id); 
    } catch (Exception e) { 
     throw new ServiceException(); 
    } 
} 
} 

控制器：

@RestController 
@RequestMapping("/api/users") 
public class UserController { 

@Autowired 
private UserService userService; 

@RequestMapping(value = "/{id}", method = RequestMethod.GET) 
public User findUserbyId(@PathVariable Long id) throws RestApiException { 
    try { 
     return userService.findUserById(id); 
    } catch (Exception e) { 
     throw new RestApiException(); 
    } 
} 
} 

建議控制器：

@ControllerAdvice 
public class AdviceController { 
@ExceptionHandler(RepositoryException.class) 
@ResponseBody 
@ResponseStatus(HttpStatus.NOT_FOUND) 
public ExceptionDetails handleDBException(RepositoryException e) { 
    ExceptionDetails exceptionDetails = new ExceptionDetails("DB", e.getMessage()); 
    return exceptionDetails; 
} 

@ExceptionHandler(ServiceException.class) 
@ResponseBody 
@ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR) 
public ExceptionDetails shandleServiceException(ServiceException e) { 
    ExceptionDetails exceptionDetails = new ExceptionDetails("SERVICE", e.getMessage()); 
    return exceptionDetails; 
} 

@ExceptionHandler(RestApiException.class) 
@ResponseBody 
@ResponseStatus(HttpStatus.BAD_REQUEST) 
public ExceptionDetails handleRestApiException(RestApiException e) { 
    ExceptionDetails exceptionDetails = new ExceptionDetails("REST", e.getMessage()); 
    return exceptionDetails; 
} 
} 

個

ExceptionDetails類：

public class ExceptionDetails { 

private String code; 
private String message; 

public ExceptionDetails(String code, String message) { 
    this.code = code; 
    this.message = message; 
} 

} 

每當IA做使用郵遞員與URL的請求：http://localhost:8080/springapp/api/users/7，其中分貝犯規exsist的ID，我想這個建議控制器應該處理的異常拋出，但我得到以下：

Hibernate: 
    select 
     user0_.id as id1_3_0_, 
     user0_.email as email2_3_0_, 
     user0_.registrationId as registra3_3_0_, 
     user0_.username as username4_3_0_ 
    from 
     User user0_ 
     where 
     user0_.id=? 
Mar 04, 2016 11:21:23 AM org.apache.catalina.core.StandardWrapperValve  invoke 
SEVERE: Servlet.service() for servlet [dispatcher] in context with path  [/notofatespring] threw exception [Request processing failed; nested  exception is com.adaptiv.notofatespring.exception.RestApiException] with root  cause 
com.adaptiv.notofatespring.exception.RestApiException 
    at  com.adaptiv.notofatespring.controller.UserController.findUserbyId(UserControl ler.java:30) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at  sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
    at  sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl. java:43) 
    at java.lang.reflect.Method.invoke(Method.java:497) 
    at  org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(Invoca bleHandlerMethod.java:221) 
    at  org.springframework.web.method.support.InvocableHandlerMethod.invokeForReques t(InvocableHandlerMethod.java:136) 
    at  org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandler Method.invokeAndHandle(ServletInvocableHandlerMethod.java:110) 
    at  org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAd apter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:817) 
    at  org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAd apter.handleInternal(RequestMappingHandlerAdapter.java:731) 
    at  org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handl e(AbstractHandlerMethodAdapter.java:85) 
    at  org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServle t.java:959) 
    at  org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet .java:893) 
    at  org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServ let.java:968) 
    at  org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java: 859) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:624) 
    at  org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.jav a:844) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) 
    at  org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationF ilterChain.java:303) 
    at  org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCha in.java:208) 
    at   org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
    at  org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationF ilterChain.java:241) 
    at  org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCha in.java:208) 
    at  org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.jav a:220) 
    at  org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.jav a:122) 
    at  org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase. java:505) 
    at  org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) 
    at  org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) 
    at  org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956) 
    at  org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java: 116) 
    at  org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423) 
    at  org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Proces sor.java:1079) 
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(Abstract Protocol.java:625) 
    at  org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:3 16) 
    at  java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:114 2) 
at  java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:61 7) 
    at  org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.jav a:61) 
    at java.lang.Thread.run(Thread.java:745) 

任何想法爲什麼控制器建議不處理異常？

Answer 1

它最有可能是你的異常處理程序中缺少@EnableWebMvc註釋。根據我的理解你的異常處理程序應該是這樣的。

@EnableWebMvc 
@ControllerAdvice 
public class AdviceController { 

此外，當聲明你也可以提供它應該掃描的軟件包。例如

@ControllerAdvice(basePackages = {"com.concretepage.controller"}) 

以及用於測試目的如果可能的話，你可以返回剛纔的jsp例如像

@ExceptionHandler(SQLException.class) 

public String handleSQLException(HttpServletRequest request, Exception ex){ 

        logger.info("SQLException Occured:: URL="+request.getRequestURL()); 

        return "database_error"; 

    }