Caused by: org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Inv

1.报错

feign.codec.DecodeException: Error while extracting response for type [java.util.List] and content type [application/json;charset=UTF-8]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unrecognized token 'nul2000': was expecting 'null', 'true', 'false' or NaN
 at [Source: (PushbackInputStream); line: 1, column: 417264]; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Unrecognized token 'nul2000': was expecting 'null', 'true', 'false' or NaN
 at [Source: (PushbackInputStream); line: 1, column: 417264]
 at [Source: (PushbackInputStream); line: 1, column: 417245] (through reference chain: java.util.ArrayList[1471])
	at feign.SynchronousMethodHandler.decode(SynchronousMethodHandler.java:169) ~[feign-core-9.5.1.jar:na]
	at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:133) ~[feign-core-9.5.1.jar:na]
	at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:76) ~[feign-core-9.5.1.jar:na]
	at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:103) ~[feign-core-9.5.1.jar:na]
	at com.sun.proxy.$Proxy181.getRegionalsListNoPage(Unknown Source) ~[na:na]
	at com.epf.dict.aspect.TranslationDictAspect.Translation(TranslationDictAspect.java:70) ~[classes/:na]
	at sun.reflect.GeneratedMethodAccessor229.invoke(Unknown Source) ~[na:na]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_40]
	at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_40]
	at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:174) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.transaction.interceptor.TransactionInterceptor$$Lambda$597/257076340.proceedWithInvocation(Unknown Source) ~[na:na]
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294) ~[spring-tx-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) ~[spring-tx-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at com.epf.transfer.service.impl.TransKeepRecordServiceImpl$$EnhancerBySpringCGLIB$$8894d6fe.getTransKeepRecordList() ~[classes/:na]
	at com.epf.transfer.controller.TransKeepRecordController.getTransKeepRecordJson(TransKeepRecordController.java:105) ~[classes/:na]
	at sun.reflect.GeneratedMethodAccessor228.invoke(Unknown Source) ~[na:na]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_40]
	at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_40]
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) [spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866) [spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) [spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat-embed-websocket-8.5.32.jar:8.5.32]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123) [druid-1.1.10.jar:1.1.10]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:800) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1471) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_40]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_40]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.32.jar:8.5.32]
	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_40]
Caused by: org.springframework.web.client.RestClientException: Error while extracting response for type [java.util.List] and content type [application/json;charset=UTF-8]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unrecognized token 'nul2000': was expecting 'null', 'true', 'false' or NaN
 at [Source: (PushbackInputStream); line: 1, column: 417264]; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Unrecognized token 'nul2000': was expecting 'null', 'true', 'false' or NaN
 at [Source: (PushbackInputStream); line: 1, column: 417264]
 at [Source: (PushbackInputStream); line: 1, column: 417245] (through reference chain: java.util.ArrayList[1471])
	at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:115) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.cloud.openfeign.support.SpringDecoder.decode(SpringDecoder.java:60) ~[spring-cloud-openfeign-core-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.cloud.openfeign.support.ResponseEntityDecoder.decode(ResponseEntityDecoder.java:45) ~[spring-cloud-openfeign-core-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at feign.SynchronousMethodHandler.decode(SynchronousMethodHandler.java:165) ~[feign-core-9.5.1.jar:na]
	... 77 common frames omitted
Caused by: org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unrecognized token 'nul2000': was expecting 'null', 'true', 'false' or NaN
 at [Source: (PushbackInputStream); line: 1, column: 417264]; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Unrecognized token 'nul2000': was expecting 'null', 'true', 'false' or NaN
 at [Source: (PushbackInputStream); line: 1, column: 417264]
 at [Source: (PushbackInputStream); line: 1, column: 417245] (through reference chain: java.util.ArrayList[1471])
	at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:243) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.read(AbstractJackson2HttpMessageConverter.java:225) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:100) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	... 80 common frames omitted
Caused by: com.fasterxml.jackson.databind.JsonMappingException: Unrecognized token 'nul2000': was expecting 'null', 'true', 'false' or NaN
 at [Source: (PushbackInputStream); line: 1, column: 417264]
 at [Source: (PushbackInputStream); line: 1, column: 417245] (through reference chain: java.util.ArrayList[1471])
	at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:391) ~[jackson-databind-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:363) ~[jackson-databind-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:302) ~[jackson-databind-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:245) ~[jackson-databind-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:27) ~[jackson-databind-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4013) ~[jackson-databind-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3084) ~[jackson-databind-2.9.6.jar:2.9.6]
	at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:237) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
	... 82 common frames omitted
Caused by: com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'nul2000': was expecting 'null', 'true', 'false' or NaN
 at [Source: (PushbackInputStream); line: 1, column: 417264]
	at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:1804) ~[jackson-core-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:679) ~[jackson-core-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._reportInvalidToken(UTF8StreamJsonParser.java:3526) ~[jackson-core-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._reportInvalidToken(UTF8StreamJsonParser.java:3502) ~[jackson-core-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._matchToken2(UTF8StreamJsonParser.java:2837) ~[jackson-core-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._matchNull(UTF8StreamJsonParser.java:2808) ~[jackson-core-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.nextFieldName(UTF8StreamJsonParser.java:1032) ~[jackson-core-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:376) ~[jackson-databind-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:159) ~[jackson-databind-2.9.6.jar:2.9.6]
	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:286) ~[jackson-databind-2.9.6.jar:2.9.6]
	... 87 common frames omitted

2.解决办法：

参考文献：
https://www.jianshu.com/p/5461eb5386a8
https://blog.csdn.net/yangchuanan/article/details/82976877

package com.epf.dict.config;

import java.util.ArrayList;
import java.util.List;

import org.springframework.beans.BeansException;
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.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;

import feign.codec.Decoder;

@Configuration
public class FeignConfig {

    /*@Bean
    Logger.Level feignLoggerLevel() {
        return Logger.Level.FULL;
    }*/


    @Bean
    public Decoder feignDecoder() {
        return new ResponseEntityDecoder(new SpringDecoder(feignHttpMessageConverter()));
    }

    public ObjectFactory feignHttpMessageConverter() {
        final HttpMessageConverters httpMessageConverters = new HttpMessageConverters(new PhpMappingJackson2HttpMessageConverter());
        return new ObjectFactory() {
            @Override
            public HttpMessageConverters getObject() throws BeansException {
                return httpMessageConverters;
            }
        };
    }

    public class PhpMappingJackson2HttpMessageConverter extends MappingJackson2HttpMessageConverter {
        PhpMappingJackson2HttpMessageConverter(){
            List mediaTypes = new ArrayList<>();
            mediaTypes.add(MediaType.valueOf(MediaType.TEXT_HTML_VALUE + ";charset=UTF-8")); //关键
            setSupportedMediaTypes(mediaTypes);
        }
    }
    
    
    
 // 创建一个新的转换器 解析微信的 [text/plain] 
    /*public class WxMessageConverter extends MappingJackson2HttpMessageConverter {
        public WxMessageConverter(){
            List mediaTypes = new ArrayList<>();
            mediaTypes.add(MediaType.valueOf(MediaType.TEXT_HTML_VALUE + ";charset=UTF-8")); //关键
            setSupportedMediaTypes(mediaTypes);
        }
    }
    
	 @Bean
	 public Decoder feignDecoder(){
	     WxMessageConverter wxConverter = new WxMessageConverter();
	     ObjectFactory objectFactory = () -> new HttpMessageConverters(wxConverter);
	     return new SpringDecoder(objectFactory);
	 }  */

}