使用 JAX-RS 的 REST API 中的错误处理

任务：而不是在我的stacktrace中接收general，在客户端接收同样可怕的stacktrace，我希望看到我的自定义消息与另一个状态代码（例如），对于开发人员来说，这将更加清楚发生了什么。并向用户添加一些有关异常的消息。HTTP 500 Internal Server Error403

以下是我的应用程序中的几个已更改的类：

服务器部分：

AppException.class - 我想要转换为此异常的所有服务器响应异常（在返回给客户端之前）。有点标准实体类

public class AppException extends WebApplicationException {

Integer status;

/** application specific error code */
int code;

/** link documenting the exception */
String link;

/** detailed error description for developers */
String developerMessage;

public AppException(int status, int code, String message, String developerMessage, String link) {
    super(message);
    this.status = status;
    this.code = code;
    this.developerMessage = developerMessage;
    this.link = link;
}

public int getStatus() {
    return status;
}

public void setStatus(int status) {
    this.status = status;
}

public int getCode() {
    return code;
}

public void setCode(int code) {
    this.code = code;
}

public String getDeveloperMessage() {
    return developerMessage;
}

public void setDeveloperMessage(String developerMessage) {
    this.developerMessage = developerMessage;
}

public String getLink() {
    return link;
}

public void setLink(String link) {
    this.link = link;
}

public AppException() {
}

public AppException(String message) {
    super("Something went wrong on the server");
}
}

ÀppExceptionMapper.class - 将我的 AppException 映射到 JAX-RS 运行时，而不是标准异常，客户端接收 AppException。

    @Provider
public class AppExceptionMapper implements ExceptionMapper<AppException> {

    @Override
    public Response toResponse(AppException exception) {
        return Response.status(403)
                .entity("toResponse entity").type("text/plain").build();
    }


}

ApplicationService.class - 引发 AppException 的我的 Service 类

 @Path("/applications")
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
public interface ApplicationService {


    @DELETE
    @Path("/deleteById")
    void deleteById(@NotNull Long id) throws AppException;
}

客户端部分：

ErrorHandlingFilter.class - 我的 AppException 的 Response catcher。在这里，我想根据状态将每个响应异常转换为另一个异常。

@Provider
public class ErrorHandlingFilter implements ClientResponseFilter {

    private static ObjectMapper _MAPPER = new ObjectMapper();

    @Override
    public void filter(ClientRequestContext requestContext, ClientResponseContext responseContext) throws IOException {
        if (responseContext.getStatus() != Response.Status.OK.getStatusCode()) {
            if(responseContext.hasEntity()) {
                Error error = _MAPPER.readValue(responseContext.getEntityStream(), Error.class);
                String message = error.getMessage();

                Response.Status status = Response.Status.fromStatusCode(responseContext.getStatus());
                AppException clientException;

                switch (status) {

                case INTERNAL_SERVER_ERROR:
                    clientException = new PermissionException(message);
                    break;


                case NOT_FOUND:
                    clientException = new MyNotFoundException(message);
                    break;

                default:
                    clientException =  new WhatEverException(message);
                }
                    throw clientException;
        }
    }
    }
}

PermissionException.class - 我想要转换AppException的异常，如果它带有500状态代码。

public class PermissionException extends AppException{

        public PermissionException(String message) {
    super("403 - Forbidden. You dont have enough rights to delete this Application");

}

Integer status;

/** application specific error code */
int code;

/** link documenting the exception */
String link;

/** detailed error description for developers */
String developerMessage;

public PermissionException(int status, int code, String message, String developerMessage, String link) {
    super(message);
    this.status = status;
    this.code = code;
    this.developerMessage = developerMessage;
    this.link = link;
}

public int getStatus() {
    return status;
}

public void setStatus(int status) {
    this.status = status;
}

public int getCode() {
    return code;
}

public void setCode(int code) {
    this.code = code;
}

public String getDeveloperMessage() {
    return developerMessage;
}

public void setDeveloperMessage(String developerMessage) {
    this.developerMessage = developerMessage;
}

public String getLink() {
    return link;
}

public void setLink(String link) {
    this.link = link;
}

public PermissionException() {}


}

ApplicationPresenter.class - UI逻辑，我希望与ErrorHandlingFilter抛出的PermissionException有关。

@SpringPresenter
public class ApplicationPresenter implements ApplicationView.Observer {

@Resource
    private ApplicationService applicationService;

    @Resource
    private UiEnvironment uiEnvironment;

@Override
    public void deleteSelectedApplication(BeanItemGrid<Application> applicationGrid) {

        try {
applicationService.deleteById(applicationGrid.getSelectedItem().getId());
                    } catch (PermissionException e) {
                        e.printStackTrace();
                        e.getMessage();
                    } catch (AppException e2) {
                    }
}
}

如何解决我的问题？我仍在接收标准500 InternalErrorException.

几乎整个问题又更新了一次！