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  • Error creating bean with name 'com.cloud.feign.interfaces.xxxFeignClient': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalSt.PathVariable annotation was empty on

    环境:

      Spring Cloud:Finchley.M8

      Spring Boot:2.0.0.RELEASE

    报错信息:

      

    Error creating bean with name 'com.cloud.feign.interfaces.xxxFeignClient': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalSt.PathVariable annotation was empty on 
    

    Feign接口代码:

    @FeignClient(value = "SPRING-CLOUD-WEB-PROVIDER-GROUP2")
    public interface SongFeignClient {
        @GetMapping("/call/{id}")
        public Object getSongInfo(@PathVariable int id);
    }

    报错信息关键点:

      

    PathVariable annotation was empty on 
    

      

    问题就出在接口方法入参@PathVariable注解这里,在Spring Mvc中可以不明确指定该注解对应的参数名称,但在feign中必须指定,否则将保如上异常,修后的正确代码如下:

    @FeignClient(value = "SPRING-CLOUD-WEB-PROVIDER-GROUP2")
    public interface SongFeignClient {
        @GetMapping("/call/{id}")
        public Object getSongInfo(@PathVariable("id") int id);
    }
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  • 原文地址:https://www.cnblogs.com/dbaxyx/p/8867854.html
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