feign 客戶端 同時支持文件上傳和實體類作爲參數接收

想讓feign 客戶端,這樣既支持文件上傳也支持實體類作爲參數接收,  並放一個實體RequestBody 中.

一直報錯:

2020-03-25 19:02:02.388 ERROR 3217 --- [ZXr4fAmWFX][io-22223-exec-1] core.ErrorHandler        : system occur error: 

feign.codec.EncodeException: Could not write request: no suitable HttpMessageConverter found for request type [model.dto.feign.DTO] and content type [multipart/form-data]
	at org.springframework.cloud.openfeign.support.SpringEncoder.encode(SpringEncoder.java:143)
	at feign.ReflectiveFeign$BuildEncodedTemplateFromArgs.resolve(ReflectiveFeign.java:372)
	at feign.ReflectiveFeign$BuildTemplateByResolvingArgs.create(ReflectiveFeign.java:224)
	at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:74)
	at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:103)
	at com.sun.proxy.$Proxy208.uploadAvatar(Unknown Source)

可以通過以下配置實現上述需求

1. 配置類

import org.springframework.beans.factory.ObjectFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
import org.springframework.cloud.openfeign.support.SpringEncoder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import feign.codec.Encoder;
import feign.form.spring.SpringFormEncoder;

/**
 * 讓 feign支持含MultiPart的dto 解析
 *
 * Created on 2020-03-25
 */
//@Configuration
public class MultiPartSupportConfiguration {

    @Autowired
    private ObjectFactory<HttpMessageConverters> messageConverters;

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

2. feign 客戶端

@FeignClient(value = "XXX", url = "https://xxx.com", configuration =
        MultiPartSupportConfiguration.class)
public interface ClientDev  {
   @PostMapping(value = "/api/v1/users.setAvatar",consumes = MediaType.MULTIPART_FORM_DATA_VALUE) Result uploadAvatar(@RequestBody DTO dto, @RequestHeader("X-Auth-Token") String token, @RequestHeader("X-User-Id") String uid);
}

 

3.DTO類

@Data
public class DTO {

    private String username;
    private MultipartFile image;

}

這樣既支持文件上傳也支持實體類作爲參數接收

4.參考:

https://blog.csdn.net/gududedabai/article/details/79895893