我该如何在Quarkus中记录com.fasterxml.jackson错误? [英] How do I log com.fasterxml.jackson errors with Quarkus?

问题描述

我使用Jackson来检查和绑定REST API的输入JSON，并在输入与@Valid约束不匹配时记录错误.

I use Jackson to check and databind input JSON for a REST API, and I would like to log the error when the input doesn’t match a @Valid constraint.

但是，异常由API作为Response抛出，但未出现在Quarkus的日志中.

However, the exceptions are throwned as a Response by the API but do not appear in Quarkus’ logs.

我如何记录杰克逊的例外情况?

How do I log Jackson’s exceptions ?

推荐答案

必须为Jackson异常创建处理程序，例如使用 ExceptionMapper .

One has to create a handler for the Jackson exceptions, e.g. using ExceptionMapper.

以下示例捕获了 lombok的@Log 注释)，并返回包含消息的400 Bad Request Response.请注意，该功能必须为toResponse(Exception).

The following example catches all exceptions of type JsonProcessingException (finer tuning is obviously possible), logs them as SEVERE (using lombok’s @Log annotation) and returns a 400 Bad Request Response including the message. Note that the function has to be toResponse(Exception).

import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;
import com.fasterxml.jackson.core.JsonProcessingException;
import lombok.extern.java.Log;

@Log
@Provider
public class MyJsonProcessingExceptionHandler implements ExceptionMapper<JsonProcessingException> {
    
    @Override
    public Response toResponse(JsonProcessingException exception) {

        log.severe(exception.getMessage());

        return Response.status(Response.Status.BAD_REQUEST).entity(exception.getMessage()).build();

    }
}

请不要忘记@Provider批注，以便Exception处理程序充当REST API的筛选器. 原则上，无需修改项目的其他文件(包括控制器)，只需在其自己的文件中修改此类.

Do not forget the @Provider annotation so that the Exception handler acts as a filter on the REST API. In principle other files of the project (including the controller) do not need to be modified, only this class in its own file.

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