com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of `com.lxw
使用Feign是出現的問題 SpringCloud對Feign進行了增強兼容了SpringMVC的註解 ，我們在使用SpringMVC的註解時需要注意： 1、feignClient接口 有參數在參數必須加@PathVariable(「XXX」)和@RequestParam(「XXX」) 2、feignClient返回值爲複雜對象時其類型必須有無參構造函數。 按住ctrl點擊打開 返回值類型 類。
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相關文章
- 1. Cannot construct instance of xxxxx
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- 3. Redis 序列化時報錯Could not read JSON: Cannot construct instance of ...
- 4. org.codehaus.jackson.map.JsonMappingException: Can not construct instance of java.util.Date from Str
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