feign 整合fastjson 呼叫介面回傳報錯-有解無憂

package com.luyang.cloud.common.config;



import com.alibaba.fastjson.serializer.SerializerFeature;

import com.alibaba.fastjson.support.config.FastJsonConfig;

import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;

import org.springframework.beans.factory.ObjectFactory;

import org.springframework.boot.autoconfigure.http.HttpMessageConverters;

import org.springframework.cloud.openfeign.support.ResponseEntityDecoder;

import org.springframework.cloud.openfeign.support.SpringDecoder;

import org.springframework.cloud.openfeign.support.SpringEncoder;

import org.springframework.context.annotation.Bean;

import org.springframework.http.MediaType;

import org.springframework.http.converter.HttpMessageConverter;



import java.util.ArrayList;

import java.util.List;





public class FeignConfig {



    @Bean

    public ResponseEntityDecoder feignDecoder() {

        HttpMessageConverter fastJsonConverter = createFastJsonConverter();

        ObjectFactory<HttpMessageConverters> objectFactory = () -> new HttpMessageConverters(fastJsonConverter);

        return new ResponseEntityDecoder(new SpringDecoder(objectFactory));

    }



    @Bean

    public SpringEncoder feignEncoder(){

        HttpMessageConverter fastJsonConverter = createFastJsonConverter();

        ObjectFactory<HttpMessageConverters> objectFactory = () -> new HttpMessageConverters(fastJsonConverter);

        return new SpringEncoder(objectFactory);

    }



    private HttpMessageConverter createFastJsonConverter() {



        //創建fastJson訊息轉換器

        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();



        //升級最新版本需加=============================================================

        List<MediaType> supportedMediaTypes = new ArrayList<>();

        supportedMediaTypes.add(MediaType.APPLICATION_JSON);

        supportedMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);

        supportedMediaTypes.add(MediaType.APPLICATION_ATOM_XML);

        supportedMediaTypes.add(MediaType.APPLICATION_FORM_URLENCODED);

        supportedMediaTypes.add(MediaType.APPLICATION_OCTET_STREAM);

        supportedMediaTypes.add(MediaType.APPLICATION_PDF);

        supportedMediaTypes.add(MediaType.APPLICATION_RSS_XML);

        supportedMediaTypes.add(MediaType.APPLICATION_XHTML_XML);

        supportedMediaTypes.add(MediaType.APPLICATION_XML);

        supportedMediaTypes.add(MediaType.IMAGE_GIF);

        supportedMediaTypes.add(MediaType.IMAGE_JPEG);

        supportedMediaTypes.add(MediaType.IMAGE_PNG);

        supportedMediaTypes.add(MediaType.TEXT_EVENT_STREAM);

        supportedMediaTypes.add(MediaType.TEXT_HTML);

        supportedMediaTypes.add(MediaType.TEXT_MARKDOWN);

        supportedMediaTypes.add(MediaType.TEXT_PLAIN);

        supportedMediaTypes.add(MediaType.TEXT_XML);

        fastConverter.setSupportedMediaTypes(supportedMediaTypes);



        //創建配置類

        FastJsonConfig fastJsonConfig = new FastJsonConfig();

        //修改配置回傳內容的過濾

        //WriteNullListAsEmpty  ：List欄位如果為null,輸出為[],而非null

        //WriteNullStringAsEmpty ： 字符型別欄位如果為null,輸出為"",而非null

        //DisableCircularReferenceDetect ：消除對同一物件回圈參考的問題，默認為false（如果不配置有可能會進入死回圈）

        //WriteNullBooleanAsFalse：Boolean欄位如果為null,輸出為false,而非null

        //WriteMapNullValue：是否輸出值為null的欄位,默認為false

        fastJsonConfig.setSerializerFeatures(

                SerializerFeature.DisableCircularReferenceDetect,

                SerializerFeature.WriteMapNullValue

        );

        fastConverter.setFastJsonConfig(fastJsonConfig);



        return fastConverter;

    }



    public @Bean HttpMessageConverters fastJsonHttpMessageConverters() {

        // 定義一個convert轉換訊息的物件

        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();

        // 添加fastjson的配置資訊

        FastJsonConfig fastJsonConfig = new FastJsonConfig();

        fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);

        // 在convert中添加配置資訊

        fastConverter.setFastJsonConfig(fastJsonConfig);

        // 將convert添加到converters中

        HttpMessageConverter<?> converter = fastConverter;

        return new HttpMessageConverters(converter);

    }

}

整合之后使用A服務呼叫B服務 B服務正常回傳資料但是A服務接收資料為Null 并報錯

java.lang.IllegalArgumentException: Invalid characters (CR/LF) in header WWW-Authenticate

	at org.springframework.security.web.firewall.FirewalledResponse.validateCrlf(FirewalledResponse.java:73) ~[spring-security-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]

	at org.springframework.security.web.firewall.FirewalledResponse.addHeader(FirewalledResponse.java:55) ~[spring-security-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]

	at javax.servlet.http.HttpServletResponseWrapper.addHeader(HttpServletResponseWrapper.java:177) ~[javax.servlet-api-4.0.1.jar:4.0.1]

	at org.springframework.security.web.util.OnCommittedResponseWrapper.addHeader(OnCommittedResponseWrapper.java:63) ~[spring-security-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]

	at org.springframework.http.server.ServletServerHttpResponse.lambda$writeHeaders$0(ServletServerHttpResponse.java:104) ~[spring-web-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at java.base/java.util.Map.forEach(Map.java:661) ~[na:na]

	at org.springframework.http.server.ServletServerHttpResponse.writeHeaders(ServletServerHttpResponse.java:102) ~[spring-web-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.http.server.ServletServerHttpResponse.getBody(ServletServerHttpResponse.java:83) ~[spring-web-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.writeInternal(AbstractJackson2HttpMessageConverter.java:255) ~[spring-web-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.http.converter.AbstractGenericHttpMessageConverter.write(AbstractGenericHttpMessageConverter.java:103) ~[spring-web-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:291) ~[spring-webmvc-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor.handleReturnValue(HttpEntityMethodProcessor.java:226) ~[spring-webmvc-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:82) ~[spring-web-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:123) ~[spring-webmvc-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver.doResolveHandlerMethodException(ExceptionHandlerExceptionResolver.java:409) ~[spring-webmvc-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.web.servlet.handler.AbstractHandlerMethodExceptionResolver.doResolveException(AbstractHandlerMethodExceptionResolver.java:61) ~[spring-webmvc-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver.resolveException(AbstractHandlerExceptionResolver.java:141) ~[spring-webmvc-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.web.servlet.handler.HandlerExceptionResolverComposite.resolveException(HandlerExceptionResolverComposite.java:80) ~[spring-webmvc-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.web.servlet.DispatcherServlet.processHandlerException(DispatcherServlet.java:1299) ~[spring-webmvc-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1111) ~[spring-webmvc-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1057) ~[spring-webmvc-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:645) ~[javax.servlet-api-4.0.1.jar:4.0.1]

	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:750) ~[javax.servlet-api-4.0.1.jar:4.0.1]

	at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74) ~[undertow-servlet-2.0.28.Final.jar:2.0.28.Final]

	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) ~[undertow-servlet-2.0.28.Final.jar:2.0.28.Final]

	at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:88) ~[spring-boot-actuator-2.1.11.RELEASE.jar:2.1.11.RELEASE]

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.1.12.RELEASE.jar:5.1.12.RELEASE]

	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.0.28.Final.jar:2.0.28.Final]

	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.0.28.Final.jar:2.0.28.Final]

	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320) ~[spring-security-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]

	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) ~[spring-security-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]

	at org.springframework.security.web.access.intercept.Fi

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