openfeign指定配置类启动报错

[sanluffy]

feignClient指定config类

//feign配置
@FeignClient(name = "dcdClient", url = "${dcd.url:}", configuration = DcdConfig.class)
public interface DcdClient {

}

//配置类
public class DcdConfig {

    @Bean("dcdRequestInterceptor")
    public DcdRequestInterceptor getRequestInterceptor() {
        return new DcdRequestInterceptor();
    }

    @Bean("dcdEncoder")
    public DcdEncoder getEncoder() {
        return new DcdEncoder();
    }

    @Bean("dcdDecoder")
    public DcdDecoder getDecoder() {
        return new DcdDecoder();
    }

    @Bean("dcdErrorDecoder")
    public DcdErrorDecoder getErrorDecoder() {
        return new DcdErrorDecoder();
    }

}


//注入SpringFormEncoder
public class DcdRequestInterceptor implements RequestInterceptor {

    @Autowired
    private SpringFormEncoder encoder;
}

报错信息

应用启动后，插件加载正常，最后提示
DcdRequestInterceptor required a bean of type 'feign.form.spring.SpringFormEncoder' that could not be found.

The injection point has the following annotations:
- @org.springframework.beans.factory.annotation.Autowired(required=true)

Action:

Consider defining a bean of type 'feign.form.spring.SpringFormEncoder' in your configuration.

版本信息

• 插件信息：INFO [main] i.g.f.d.t.h.c.HotswapAgent 66 : open hot reload unlimited runtime class redefinition.{4.4.3}
• springboot 版本：2.6.x
• jdk ：jbr-11

操作系统

mac os m3

[future0923]

我用下面代码尝试没有复现出来。DcdEncoder 这些应该是你自己的包，其中的 SpringFormEncoder 这个bean是通过什么方式注入的？

@Configuration
public class DcdConfig {

    @Bean("dcdRequestInterceptor")
    public DcdRequestInterceptor getRequestInterceptor() {
        return new DcdRequestInterceptor();
    }

    @Bean
    public SpringFormEncoder feignFormEncoder() {
        return new SpringFormEncoder();
    }
}

public class DcdRequestInterceptor implements RequestInterceptor {

    @Autowired
    private SpringFormEncoder encoder;

    @Override
    public void apply(RequestTemplate requestTemplate) {

    }
}


@FeignClient(name = ServiceConstants.AUTH_SERVICE, path = "/auth/inner", configuration = DcdConfig.class)
public interface TestFeign {

    @GetMapping("/test")
    Boolean test(@RequestParam Long userId);
}

[sanluffy]

我通过autowired注入，这个SpringFormEncoder是openfeign包自带的Encoder实现，在configuration声明bean

    @Bean
    @Primary
    @Scope(SCOPE_PROTOTYPE)
    public Encoder springFormEncoder() {
        return new SpringFormEncoder(new SpringEncoder(this.messageConverters));
    }

[future0923]

有没有能复现的小demo，尝试了半天，没复现出来这个错误

[sanluffy]

抱歉，给你带来困扰了，我定位到项目依赖问题，@scope(SCOPE_PROTOTYPE)声明为多例会受影响（改为单例OK），我还在排查冲原因
@Bean @Primary @Scope(SCOPE_PROTOTYPE) public Encoder springFormEncoder() { return new SpringFormEncoder(new SpringEncoder(this.messageConverters)); }

[future0923]

有能复现 demo 可以发来一起排查下