feign解码异常 feign.codec.DecodeException: null

异常名称:DecodeException

异常分析:微服务间调用时返回数据解析失败 

异常原因:此异常原因可能很多，大多是返回数据类型不匹配导致 本次因为使用注解开启redis缓存后，相应的实体类未实现序列化接口，导致微服务间调用失败

异常详情:

2022-01-21 12:13:27.760 ERROR 81816 --- [nio-9403-exec-4] c.y.scr.common.GlobalExceptionHandler    : 异常消息：

    feign.codec.DecodeException: null
    at feign.AsyncResponseHandler.decode(AsyncResponseHandler.java:119) ~[feign-core-10.10.1.jar:na]
    at feign.AsyncResponseHandler.handleResponse(AsyncResponseHandler.java:87) ~[feign-core-10.10.1.jar:na]
    at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:138) ~[feign-core-10.10.1.jar:na]
    at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:89) ~[feign-core-10.10.1.jar:na]
    at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:100) ~[feign-core-10.10.1.jar:na]
    at com.sun.proxy.$Proxy75.getGridOee(Unknown Source) ~[na:na]
    at com.yelink.scr.controller.HomeScreenController.getGridOee(HomeScreenController.java:186) ~[classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.13.RELEASE.jar:5.2.13.RELEASE]
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.13.RELEASE.jar:5.2.13.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) ~[spring-webmvc-5.2.13.RELEASE.jar:5.2.13.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878) ~[spring-webmvc-5.2.13.RELEASE.jar:5.2.13.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792) ~[spring-webmvc-5.2.13.RELEASE.jar:5.2.13.RELEASE]
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.13.RELEASE.jar:5.2.13.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.13.RELEASE.jar:5.2.13.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.13.RELEASE.jar:5.2.13.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) [spring-webmvc-5.2.13.RELEASE.jar:5.2.13.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) [spring-webmvc-5.2.13.RELEASE.jar:5.2.13.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:626) [tomcat-embed-core-9.0.43.jar:4.0.FR]
    ...
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_201]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_201]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.43.jar:9.0.43]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_201]
Caused by: com.yelink.dfscommon.constant.ResponseException: null
    at com.yelink.scr.config.FeignConfig.decode(FeignConfig.java:35) ~[classes/:na]
    at feign.AsyncResponseHandler.decode(AsyncResponseHandler.java:115) ~[feign-core-10.10.1.jar:na]
    ... 56 common frames omitted

解决方案：序列化实体类

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标签：feign,java,DecodeException,na,jar,13,5.2,codec,RELEASE
来源： https://www.cnblogs.com/axibug/p/15840726.html