ops下子模块，feign 调用无法解析返回对象

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duofan 剑童 2024-12-25 12:41

一、该问题的重现步骤是什么？

1. 在ops 模块下新建服务，ops-api 创建feign

2. 在ops下任意模块调用feign ，返回无法转换成对象

 2024-12-25 00:22:04.665 ERROR 51856 --- [  XNIO-1 task-2] o.s.core.cloud.feign.BladeFeignFallback  : BladeFeignFallback:[com.duofan.retailhero.feign.PayFeignClient.initiatePayment] serviceId:[pay-service] message:[Error while extracting response for type [class com.duofan.retailhero.dto.PaymentDTO] and content type [application/json;charset=UTF-8]]
 
2024-12-25 00:22:15.610 ERROR 51856 --- [  XNIO-1 task-2] o.s.core.cloud.feign.BladeFeignFallback  : BladeFeignFallback:[com.duofan.retailhero.feign.PayFeignClient.initiatePayment] serviceId:[pay-service] message:[Body parameter 0 was null]

二、你期待的结果是什么？实际看到的又是什么？

能够成功转成实体对象，实际返回的是null

三、你正在使用的是什么产品，什么版本？在什么操作系统上？

blade

4.3.0

windows

四、请提供详细的错误堆栈信息，这很重要。

 2024-12-25 00:22:04.665 ERROR 51856 --- [  XNIO-1 task-2] o.s.core.cloud.feign.BladeFeignFallback  : BladeFeignFallback:[com.duofan.retailhero.feign.PayFeignClient.initiatePayment] serviceId:[pay-service] message:[Error while extracting response for type [class com.duofan.retailhero.dto.PaymentDTO] and content type [application/json;charset=UTF-8]]
 
2024-12-25 00:22:15.610 ERROR 51856 --- [  XNIO-1 task-2] o.s.core.cloud.feign.BladeFeignFallback  : BladeFeignFallback:[com.duofan.retailhero.feign.PayFeignClient.initiatePayment] serviceId:[pay-service] message:[Body parameter 0 was null]

五、若有更多详细信息，请在下面提供。

远程调用没成功，触发fallback了，你测试其他现有的feign看看能不能成功。如果其他的能成功，你自建的不行就说明是代码或者配置问题

直接返回这中实体，feign 解析没有问题。

返回生成的这种dto 就会包上面的错误。和其他配置无关

原因找到了，大佬是这个枚举序列化，匹配不上做了异常抛出

	2024-12-25 00:22:04.665 ERROR 51856 --- [ XNIO-1 task-2] o.s.core.cloud.feign.BladeFeignFallback : BladeFeignFallback:[com.duofan.retailhero.feign.PayFeignClient.initiatePayment] serviceId:[pay-service] message:[Error while extracting response for type [class com.duofan.retailhero.dto.PaymentDTO] and content type [application/json;charset=UTF-8]]

	2024-12-25 00:22:15.610 ERROR 51856 --- [ XNIO-1 task-2] o.s.core.cloud.feign.BladeFeignFallback : BladeFeignFallback:[com.duofan.retailhero.feign.PayFeignClient.initiatePayment] serviceId:[pay-service] message:[Body parameter 0 was null]

	`2024-12-25 00:22:04.665 ERROR 51856 --- [ XNIO-1 task-2] o.s.core.cloud.feign.BladeFeignFallback : BladeFeignFallback:[com.duofan.retailhero.feign.PayFeignClient.initiatePayment] serviceId:[pay-service] message:[Error while extracting response for type [class com.duofan.retailhero.dto.PaymentDTO] and content type [application/json;charset=UTF-8]]`

	2024-12-25 00:22:15.610 ERROR 51856 --- [ XNIO-1 task-2] o.s.core.cloud.feign.BladeFeignFallback : BladeFeignFallback:[com.duofan.retailhero.feign.PayFeignClient.initiatePayment] serviceId:[pay-service] message:[Body parameter 0 was null]