【文章推薦】Exception:public class feign.codec.EncodeException feign.codec.EncodeException: 'Content-Type' cannot contain wildcard type '*'

原文：Exception:public class feign.codec.EncodeException feign.codec.EncodeException: 'Content-Type' cannot contain wildcard type '*'

一異常出現的場景 Spring Cloud 服務A通過feign調用服務B 之前是好好的，但今天突然就不好了，拋以下異常出現原因補充，Spring Boot默認的JSON方式 Jackson,對應的消息轉化器是org.springframework.http.converter.json.MappingJackson HttpMessageConverter，但是項目手動指定了fastjson ...

2018-12-24 00:11 0 4931 推薦指數：

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報錯：Request processing failed; nested exception is feign.codec.EncodeException

Request processing failed; nested exception is feign.codec.EncodeException: Could not write JSON: Infinite recursion (StackOverflowError); nested ...

Feign聲明式調用服務 feign.codec.DecodeException: Error while extracting response for type [class **] and content type [application/json;charset=UTF-8

再生用聲明式Feign調用服務進行查詢的時候，報了如下錯誤！排錯思路：　　比如我有兩個服務，一個調用這個Feign查詢數據抱這種錯誤，那么好，再換一個服務進行查詢，還是報了如上的錯誤，那么就確定了一定是被Feign調用的服務有了問題分析 ...

No converter found for return value of type: class java.util.HashMap + 'Content-Type' cannot contain wildcard type '*'

背景說明：環境：IDEA java語言 springmvc.xml 配置需要用到fastjson jackson pom.xml中配置了需要用到的包，springmvc.xml中也寫了注解驅動 ...

Spring Boot配置FastJson報錯'Content-Type' cannot contain wildcard type '*'

升級到最新版本的fastjson以后報的錯，查了一下資料，發現 fastjson從1.1.41升級到1.2.28之后，請求報錯：json java.lang.IllegalArgumentException: 'Content-Type' cannot contain wildcard type ...

Spring Boot配置FastJson報錯'Content-Type' cannot contain wildcard type '*'

java.lang.IllegalArgumentException: 'Content-Type' cannot contain wildcard t ...

Spring Boot配置FastJsonHttpMessageConverter報錯'Content-Type' cannot contain wildcard type '*'

Spring Boot配置FastJsonHttpMessageConverter報錯'Content-Type' cannot contain wildcard type '*' 背景：業務需求中屬性名稱和接口的名稱不匹配，項目中用fastjosn的@JSONFiled注解自定義返回 ...

feign.codec.DecodeException: Type definition error:.......

測試feign調用接口時報錯： feign.codec.DecodeException: Type definition error: [simple type, class com.xuecheng.framework.domain.cms.response.CmsPageResult ...

feign.codec.DecodeException: Type definition error...

empty constructor: public Result() { } ...

原文：Exception:public class feign.codec.EncodeException feign.codec.EncodeException: 'Content-Type' cannot contain wildcard type '*'

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