4

在我的处理程序函数中，我有这个方法

public Mono<ServerResponse> itemsEx(ServerRequest serverRequest) {
    throw new RuntimeException("RuntimeException Occured");
}

现在，我想处理这个异常，所以我重写AbstractErrorWebExceptionHandler并创建了这个类。

package com.learnreactivespring.learnreactivespring.exception;

import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.autoconfigure.web.ResourceProperties;
import org.springframework.boot.autoconfigure.web.reactive.error.AbstractErrorWebExceptionHandler;
import org.springframework.boot.web.error.ErrorAttributeOptions;
import org.springframework.boot.web.reactive.error.ErrorAttributes;
import org.springframework.context.ApplicationContext;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.codec.ServerCodecConfigurer;
import org.springframework.stereotype.Component;
import org.springframework.web.reactive.function.BodyInserters;
import org.springframework.web.reactive.function.server.*;
import reactor.core.publisher.Mono;

import java.util.Map;

@Component
@Slf4j
public class FunctionalErrorWebExceptionHandler extends AbstractErrorWebExceptionHandler {


public FunctionalErrorWebExceptionHandler(ErrorAttributes errorAttributes,
                                          ApplicationContext applicationContext,
                                          ServerCodecConfigurer serverCodecConfigurer) {
    super(errorAttributes, new ResourceProperties(), applicationContext);
    super.setMessageWriters(serverCodecConfigurer.getWriters());
    super.setMessageReaders(serverCodecConfigurer.getReaders());
}

@Override
protected RouterFunction<ServerResponse> getRoutingFunction(ErrorAttributes errorAttributes) {
    return RouterFunctions.route(RequestPredicates.all(), this::renderErrorResponse);

}

private  Mono<ServerResponse> renderErrorResponse(ServerRequest serverRequest) {

    ErrorAttributeOptions errorAttributes = ErrorAttributeOptions.of(ErrorAttributeOptions.Include.MESSAGE);

    Map<String, Object> errorAttributesMap = getErrorAttributes(serverRequest, errorAttributes);
    log.info("errorAttributesMap : " + errorAttributesMap);

    return ServerResponse.status(HttpStatus.INTERNAL_SERVER_ERROR)
            .contentType(MediaType.APPLICATION_JSON)
            .body(BodyInserters.fromValue(errorAttributesMap.get("message")));

}

问题是，我的终端中仍然有一个 Stacktrace ......但我只用 message 明确定义了 ErrorAttributeOptions。我当前的 Spring Boot 版本是2.3.1.RELEASE。在以前的版本（2.1.1）我没有这个问题，因为我习惯了这个

package com.learnreactivespring.exception;

import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.autoconfigure.template.TemplateAvailabilityProviders;
import org.springframework.boot.autoconfigure.web.ResourceProperties;
import org.springframework.boot.autoconfigure.web.reactive.error.AbstractErrorWebExceptionHandler;
import org.springframework.boot.web.reactive.error.ErrorAttributes;
import org.springframework.context.ApplicationContext;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.codec.ServerCodecConfigurer;
import org.springframework.stereotype.Component;
import org.springframework.web.reactive.function.BodyInserters;
import org.springframework.web.reactive.function.server.*;
import reactor.core.publisher.Mono;

import java.util.Map;

@Component
@Slf4j
public class FunctionalErrorWebExceptionHandler extends AbstractErrorWebExceptionHandler {


    public FunctionalErrorWebExceptionHandler(ErrorAttributes errorAttributes,
                                              ApplicationContext applicationContext,
                                              ServerCodecConfigurer serverCodecConfigurer) {
        super(errorAttributes, new ResourceProperties(), applicationContext);
        super.setMessageWriters(serverCodecConfigurer.getWriters());
        super.setMessageReaders(serverCodecConfigurer.getReaders());
    }

    @Override
    protected RouterFunction<ServerResponse> getRoutingFunction(ErrorAttributes errorAttributes) {
        return RouterFunctions.route(RequestPredicates.all(), this::renderErrorResponse);

    }

    private  Mono<ServerResponse> renderErrorResponse(ServerRequest serverRequest) {

        Map<String, Object> errorAttributesMap = getErrorAttributes(serverRequest, false);
        log.info("errorAttributesMap : " + errorAttributesMap);

        return ServerResponse.status(HttpStatus.INTERNAL_SERVER_ERROR)
                .contentType(MediaType.APPLICATION_JSON)
                .body(BodyInserters.fromObject(errorAttributesMap.get("message")));

    }


}

现在，在 Spring Boot 的碰撞版本之后发生了这个问题。

4

1 回答 1

2

你应该使用ErrorAttributeOptions.defaults(). 但请注意，默认情况下消息始终为空（并且堆栈跟踪不存在）。

所以你可能想使用这样的东西：

ErrorAttributeOptions options = ErrorAttributeOptions
    .defaults()
    .including(ErrorAttributeOptions.Include.MESSAGE)
;

.excluding(.)如果您想排除某些内容，请使用。

于 2021-06-23T17:11:09.247 回答